cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Prof. Dr. Elna Karmawati
Contact Email
littri_puslitbangbun@yahoo.co.id
Phone
+62251-8313083
Journal Mail Official
littri_puslitbangbun@yahoo.co.id
Editorial Address
Jalan Tentara Pelajar No. 1, Cimanggu, Bogor 16111
Location
Kota bogor,
Jawa barat
INDONESIA
Jurnal Penelitian Tanaman Industri (Littri)
Published by Pusat Penelitian dan Pengembangan Perkebunan
ISSN : 08538212     EISSN : 25286870     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Tanaman Industri (JLITTRI) aims to publish primary research articles of current research topics, not simultaneously submitted to nor previously published in other scientific or technical ojournals. General review articles will not be accepted. The journal maintains strict standards of content, presentation,and reviewing. SCOPE The journal will consider primary research papers from any source if they make an original contribution to the experimental or theoretical understanding and application of theories and methodologies of some aspects of agricultural science in Indonesia including: Estate crops; Soil science; Climate science; Agronomy; Plant breeding; Biotechnology; Genetic resources; Plant pathology; Plant physiology; Entomology; Farming system; Postharvest technology; Socio-economic agriculture; Environment; Agricultural extension. The journal publishes Indonesian or English articles. Since the year of 2017, the jurnal is published twice a year in (June and December).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 504 Documents
 24   25   26   27   28 
RESPON KLON RAMI TERHADAP PENYEMPROTAN ZAT PENGATUR TUMBUII DAN PUPUK PELENGKAP CAIR ADJI SASTROSUPADI; MOCH ROMLI; BUDI SANTOSO
Jurnal Penelitian Tanaman Industri Vol 4, No 6 (1999): Maret, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v4n6.1999.174-178

Abstract

Response of ramie clone on growth regulator spray and liquidfertilizer supplementThe experiment of growth regulator and fertilizer supplement applica¬ tion was conducted at the green house of RITFC from November 1995 to June 1996 to accelerate the vegetative growth of ramie clone Pujon 10. The objective of the research was to find out suitable growth regulator to accelarate the vegetative growth of ramie clone Hie treatments were the application of /.PI and PPC as the supplement to NPK fetilizer application through the soil. I lie application was conducted one time and two times. The research used a completely randomized block design with three replications Hie results showed that 7-PT was the fastest in accelerating the vegetative growth of ramie The suitable dosage was 1.0 litrc/ha applied twice on 15 and 25 days after cuting, 0.5 htre/ha/application. The increase of chinagrass by adding the growth regulator was 57.8% compared to NPK fertilizer only.
PENGARUH JARAK TANAM DAN DOSIS PUPUK TERHADAP PRODUKSI DAN VIABILITAS BENIH SETEK NILAM (Pogostemon cablin Benth) SUKARMAN SUKARMAN
Jurnal Penelitian Tanaman Industri Vol 18, No 2 (2012): Juni 2012
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v18n2.2012.81-87

Abstract

ABSTRAKSampai saat ini informasi pengaruh jarak tanam dan dosis pupukterhadap produktivitas, dan viabilitas benih nilam (Pogostemon cablinBenth) masih terbatas. Untuk itu penelitian ini dilakukan dengan tujuanmendapatkan jarak tanam dan dosis pupuk yang optimum untuk produksibenih/setek nilam. Penelitian dilakukan di Kebun Percobaan (KP)Sukamulya, Balai Penelitian Tanaman Rempah dan Industri Lain (Balittri),Pakuwon, Parungkuda, Sukabumi, dari Januari sampai November 2010.Percobaan faktorial, dengan tiga faktor dan tiga ulangan, disusun dalamrancangan petak terbagi dua kali (RPPT). Petak utama adalah dua varietasnilam yaitu Sidikalang dan Lhokseumawe. Anak petak adalah tiga jaraktanam yaitu (1) 1 x 0,5 m; (2) 1 x 0,7 m; dan (3) 1 x 1 m. Anak-anak petakadalah dua dosis pemupukan yaitu : 1) 30 ton pupuk kandang, 300 kg urea,150 kg SP-36, dan 300 kg KCl/th, dan 2) 45 ton pupuk kandang, 450 kgurea, 225 kg SP-36, dan 450 kg KCl/th. Ukuran plot 8,4 x 5 m. Parameteryang diamati adalah pertumbuhan tanaman (tinggi tanaman, jumlahcabang primer, sekunder, dan tersier), produksi benih pertanaman,diameter bagian pangkal, tengah, dan pucuk dari cabang primer dansekunder, kadar karbohidrat dan serat, dan viabilitas benih setek.Pengamatan dilakukan pada umur enam bulan setelah tanam (6 BST).Hasil penelitian menunjukkan bahwa : (1) varietas Sidikalang dengandosis pemupukan 45 ton pupuk kandang, 450 kg urea, 225 kg SP-36, dan450 kg KCl/th, menghasilkan jumlah cabang primer paling tinggi yaitu14,29; (2) jarak tanam 1 x 0,5 m menghasilkan benih setek tertinggi(73.555 stek/1.000 m 2 ). Rata-rata diameter benih berasal dari pangkal ≥ 5mm, sedangkan rata-rata diameter benih berasal dari pucuk ≥ 4 mm; (3)Viabilitas benih pada 0 dan 4 hari setelah penyimpanan ≥ 80%. Jaraktanam 1 x 0,5 m dengan dosis pupuk kandang sebanyak 30 ton, 300 kgurea, 150 kg SP-36, dan 300 kg KCl pertahun merupakan dosis yangoptimal untuk produksi benih/setek nilam. Kombinasi perlakuanpemupukan 30 ton pupuk kandang, 300 kg urea, 150 kg SP-36, 300 kgKCl/th dengan jarak tanam 1 x 0,5 m menghasilkan keuntungan tertinggiyaitu: Rp 6.668.500 dengan nilai B/C 2,05.Kata kunci : Pogostemon cablin Benth, jarak tanam, pemupukan,produksi, kualitas benih/setekABSTRACTEffect of Spacing and Fertilizer Dosages on Productionand Viability of Patchouli Cutting SeedsInformation on the effect of plant density and fertilizer dosage onthe production and viability of patchouli seeds is still limited. Thisexperiment was aimed at finding out optimum plant spacing and fertilizerdosage for improving production and quality of patchouli cutting seeds.The experiment was conducted at Sukamulya experimental station ofIndonesian Spice and Industrial Crops Research Institute (ISICRI),Pakuwon, Sukabumi from January through November 2010. Thisexperiment was consisted of three factors and three replicates and wasarranged in a split-split-plot design. The main plots were two varieties ofpatchouli, i.e. V1 = Sidikalang and V2 = Lhokseumawe. The sub plotswere three plant spacing dimentions, i.e. S1 (1 x 0.5 m), S2 (1 x 0.7 m),and S3 (1 x 1 m). The sub-sub plots were two levels of fertilizer dosage,i.e. F1 (manure; urea, SP-36, and KCl of 30 t; 450, 225, and 450 kg/ha,respectively) and F2 (manure; urea, SP-36, and KCl of 45 t; 300, 150, and450 kg/year, respectively). Variables observed were plant growth (plantheight; number of primary, secondary, and tertiary branches), seedproductivity and viability, diameter of bottom, medium, and upper ofcutting seeds. The results of experiment indicated that Sidikalang variety,treated with 45 tons of manure, 450 kg urea, 225 kg SP-36, and 450 kgKCl per hectare produced the highest number of primary branchescompared to other treatments. Plant spacing of 1 x 0.5 m produced thehighest number of cutting seeds (73,555 stumps/1,000m 2 ). The averageddiameters of cutting seeds from basal were ≥ 5 mm while those from topwere ≥ 4 mm. Viability of the cutting seeds at 0 and 4 days after storagewas ≥ 80%. Plant spacing 1 x 0.5 m with dosage of fertilizer 30 ton dungmanure, 300 kg urea, 150 kg SP-36, and 300 kg KCl per year is the dosageoptimum for producing seed/cutting of patchouli. Combination of fertilizerdosages of 30 tons manure, 300 kg urea, 150 kg SP-36, and 300 kg KClper year and plant spacing of 1 x 0.5 m produced the highest profit asmuch as Rp 6,668,500 with B/C value of 2.05.Key words: Pogostemon cablin Benth, plant spacing, fertilizer,production, cutting seed quality
PENULARAN PENYAKIT KERDIL PADA TANAMAN LADA OLEH TIGA JENIS SERANGGA VEKTOR RODIAH BALFAS; SAMSUDIN SAMSUDIN; SUKAMTO SUKAMTO; IRWAN LAKANI
Jurnal Penelitian Tanaman Industri Vol 13, No 4 (2007): DESEMBER 2007
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v13n4.2007.136-141

Abstract

ABSTRAKPenyakit kerdil merupakan salah satu penyakit penting padatanaman lada (Piper nigrum L.), yang disebabkan oleh dua jenis virus,yaitu Piper Yellow Mottle Virus (PYMV) yang ditularkan oleh kutu putih(Planococcus minor dan Ferrisia virgata); dan Cucumo Mosaic Virus(CMV) yang pernah dilaporkan ditularkan oleh Aphis gossypii. Penelitiantentang penyakit ini telah dilakukan di laboratorium dan rumah kaca untukmengetahui kemampuan serangga vektor P. minor, F. virgata dan A.gossypii dalam menularkan penyakit. Serangga tersebut diberi makanselama 24 jam pada tanaman lada yang terserang penyakit kerdil,kemudian serangga dipindahkan ke bibit lada sehat selama 24 (A. gossypii)dan 48 jam (P. minor dan F. virgata). Pada setiap jenis serangga diuji 1, 3,7 dan 10 ekor per tanaman. Dengan cara yang sama dilakukan pulapengujian lanjutan penularan dengan A. gossypii (sebanyak 10 ekorserangga per tanaman) dengan menggunakan tiga sumber tanaman sakityang berbeda (tanaman sakit asal Bangka, asal Sukabumi dan Bogor).Selain itu dilakukan penularan secara mekanik dengan menggunakanketiga sumber inokulum. Tanaman yang telah diperlakukan diinkubasikandi rumah kaca. Deteksi virus dilakukan dengan ELISA denganmenggunakan antiserum dari Agdia. Hasil penelitian menunjukkan bahwaP. minor dan F. virgata dapat menularkan penyakit kerdil ke tanaman ladahingga 100%, sedangkan penularan dengan A. gossypii tidak menunjukkangejala, tetapi pada pengujian lanjutan dengan A. gossypii memperlihatkanbeberapa tanaman bergejala. Dari penelitian ini terungkap kutu putihmerupakan serangga vektor PYMV yang sangat efisien, sedangkan A.gossypii dapat berperan sebagai vektor CMV dengan kemampuanpenularan masih terbatas.Kata kunci : Piper nigrum L., penyakit kerdil, Ferrisia virgata,Planococcus minor, Aphis gossypii, CMV dan PYMV,penularanABSTRACTTransmission of stunted growth disease on black pepperby three insect vectorsStunted growth disease is one of the most important diseases onblack pepper caused by Piper Yellow Mottle Virus (PYMV) transmitted byMealybugs (Planococcus minor and Ferrisia virgata) and Cucumo MosaicVirus (CMV) transmitted by Aphis gossypii. These experiments wereconducted at laboratory and green house to examine the capability of theinsects in transmitting the disease. The insects were fed on black pepperplant for 24 hours, then transferred to healthy black pepper seedlings for24 hours (A. gossypii) and 48 hours (P. minor and F. virgata). Each plantwas treated with 1, 3, 7 and 10 insects. Other disease transmission test withA. gossypii was carried out using the similar method, but each plant wastreated with 10 insects and used three source plants (disease plant fromBangka,  Sukamulya/Sukabumi  and  Bogor).  Disease  mechanicaltransmission was also carried out to black pepper plant using the threesources of disease plant treated plants were incubated in the glass house.ELISA was used for disease confirmation with antiserum from Agdia.The results showed that high transmission rate (up to 100%) were obtainedin transmission with P. minor and F. virgata . No disease symptoms wereshown in black pepper seedlings treated with A. gossypii. In the othertransmission test, however, some plants showed symptoms. The similarsymptoms were also seen on black pepper plants which were mechanicallyinoculated. The ELISA showed that the plants were positive for CMV.These experiments suggested that P. minor and F. virgata are veryefficient vectors for PYMV, Whereas A. gossypii was confirmed as vectorof CMV of black pepper with limited ability in transmitting the disease.Key words : Black pepper, stunted growth disease, Ferrisia virgata,Planococcus minor, Aphis gossypii, CMV, PYMV,transmissio
KOMBINASI TERMOTERAPI DAN KHEMOTERAPI DENGAN KULTUR APEKS DAN MERISTEM UNTUK ELIMINASI VIRUS MOSAIK PADA TEBU / The Combined Treatment of Thermotherapy and Chemotherapy with Apex and Meristem Culture for Mosaic Virus Elimination in Sugarcane Ika Roostika; SEDYO HARTONO; DARDA EFENDI
Jurnal Penelitian Tanaman Industri Vol 22, No 1 (2016): Maret, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n1.2016.19-28

Abstract

There are several ways to eliminate virus, suach as the application of thermoterapi and chemotherapy technique, and also the apex and meristem culture. One way to control this disease is the use of virus-free seedlings. The objective of this study was to find out the effect of combined treatment between thermotherapy or chemotherapy with apex or meristem culture to mosaic virus elimination of sugarcane. There were four steps in this research: (1) Virus detection of mother plant, (2) Application of thermotherapy at 50oC and chemotherapy by using Ribavirin 25 µg/l combined with apex culture, (3) Application of thermotherapy and chemotherapy combined with meristem culture, and (4) Evaluation of virus elimination. The plant materials used were PS862 from Cirebon (PS862-Crb), PS881 from Surabaya (PS881-Sby) and PSJK922 (PSJK922-Bgr) from Bogor. Virus detection was conducted by TEM and RT-PCR analysis. The temperature for thermotherapy was 500C and the antiviral agent was Ribavirin (0 and 25 μg/l). The result showed that thermotherapy or chemotherapy combined with apex culture could not eliminate virus infection. The combined treatment of chemotherapy and meristem culture could eliminate SCSMV in variety PS862-Crb based on RT-PCR assay, however TEM analysis still detected the viral particle. It was suggessted to udertake virus indexing of large number of samples to see the rate of virus elimination.Keywords: Saccharum officinarum L., Ribavirin, Potyvirus, TEM, RT- PCR
PENGENDALIAN HAMA TERPADU Helopeltis antonii PADA TANAMAN JAMHU MENTE ELNA KARMAWATI; TRI HARYANI SAVITRI; WARSI RACHMAT; TRI EKO WAHYONO
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.1-5

Abstract

Integrated Pesl Control Research of // antonii on cashew was studied out in Wonogiri, Central Java from May lo December 2000. Ihe objective of the study was lo obtain Ihe efective eonlrol method Spill plot design was used. Ihe main plots were intercropping system of cashew with (a) niunghcan and (b) mixed of cassava, peanut and maize, The subplots were treatments of (a) benomyl without B bassiana. (b) R bassiana without benomyl, and (c) eonlrol The concentation of benomyl used were 2 g per liter, while for II. bassiana 11) g per liter containing I. I x 10* conidias. Treatments were applied on Ihe beginning of October 2000, and observations were done twice in one month. The area needed for all plots were 24 000 m1 (4 replications). Hie asscsments consisted of (a) number of //. antonii eggs, nymphs and its natural enemies, (b) number of flowers and shoots attacked, and (c) cashew nut per tree. The result showed thai there was interaction between the Iwo factor tested. Mix-cropping with R bassiana reduced //. antonii population on cashew and increased productivity from 3.85 kg lo 5.33 kg per tree. These treatments were therefore recommended for controlling the pest.
VARIASI KETAHANAN GENOTIPE KENAF (Hibiscus cannabinus L.) TERHADAP NEMATODA PURU AKAR (Meloidogyne incognita) UNTUNG SETYO-BUDI; SUDJINDRO SUDJINDRO; R. D. PURWATI
Jurnal Penelitian Tanaman Industri Vol 15, No 2 (2009): Juni 2009
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v15n2.2009.60-65

Abstract

ABSTRAKNematoda puru akar (Meloidogyne sp.) merupakan penyakit yangtergolong penting dan banyak menyerang pertanaman kenaf di lahanpengembangan maupun pembenihan, sehingga banyak menimbulkankerugian bagi petani karena terjadi penurunan produktivitasnya. Tanamankenaf (H. cannabinus) umumnya tidak tahan nematoda, namun kerabatdekat kenaf dari jenis liar seperti H. radiatus (radiatus) diketahuimengandung gen ketahanan terhadap nematoda. Persilangan inter spesifikantara kenaf dan radiatus yang beda spesies, diharapkan akan dapatmentransfer gen ketahanan dari radiatus ke kenaf, sehingga diperolehvarietas unggul kenaf yang tahan nematoda. Tujuan penelitian ini adalahuntuk mengetahui variabilitas genetik sifat ketahanan tanaman kenafterhadap serangan M. incognita pada F1 dibandingkan dengan keduatetuanya. Kegiatan persilangan interspesifik antara kenaf (H. cannabinus)dan radiatus (H. radiatus) dilakukan di KP. Karangploso Malang padaTahun 2002, sedangkan uji ketahanan nematoda puru akar (M. incognita)terhadap keturunan dan kedua tetuanya dilaksanakan di Desa Kendalrejo,Kabupaten Blitar pada bulan Februari s/d Agustus 2003. Pengujianketahanan di lapang dilakukan menggunakan metode baris tanpa ulanganpada jarak tanam 20 x 20 cm, dengan perlakuan terdiri dari lima set hasilpersilangan dan kedua tetuanya yakni 20 populasi F1, 20 populasi P1 dan20 populasi P2, dengan masing-masing populasi 20 tanaman. Hasil ujitanah di laboratorium menunjukkan bahwa rata-rata kandungan larva M.incognita (sebagai populasi awal) adalah sebesar 96 ekor/100 ml tanahdan dikategorikan sangat tinggi. Sedangkan hasil identifikasi sidik pantat(berdasarkan perenial patternnya) terhadap larva betina dewasa diketahuibahwa jenis nematoda di lokasi penelitian adalah dari spesies Meloidogyneincognita. Pengamatan dan perhitungan larva M. incognita dilakukan diLaboratarium Hama dan Penyakit Balittas, Malang. Pengamatan dilakukanterhadap jumlah puru akar per tanaman, kerusakan akar tanaman, danpopulasi larva M. incognita dalam tanah sebagai faktor R (R = reproduksilarva). Untuk menggolong-golongkan tingkat ketahanan terhadap M.incognita digunakan metode Zeck melalui indeks kerusakan akar. Darihasil penelitian menunjukkan bahwa, semua keturunan F1 dari 5persilangan interspesifik antara KR 6 x Kal II, KR 11 x Kal II, KR 12 xKal II, Hc G-1 x Kal II, dan Hc G-51 x Kal II tidak ada yang tahanterhadap serangan M. incognita. Nilai ketahanan genotipe F1 terletak diantara tetua jantan (Kal II/ radiatus) yang tahan dan tetua betina (kenaf)yang sangat rentan.Kata kunci : Hibiscus cannabinus L., interspesifik, variabilitas genetik,ketahanan, Meloidogyne incognitaABSTRACTResistance variability of kenaf (Hibiscus cannabinus L.)genotypes to root-knot nematode (Meloidogyne incognitaL.)Root Knot Nematode (Meloidogyne incognita) is an importantdisease on kenaf plantation in the development area and its nursery. Thiscondition generates reduce of productivity and loss of farmers’ income.Kenaf plants are generally not resistant to nematode infestation, so theyneed resistant gene from other species (H. radiatus) to be transfered to H.cannabinus by interspecific hybridization. The objective of this researchwas to obtain genetic variability of kenaf resistance to Meloidogyneincognita attact. Interspecific hybridization between H. cannabinus and H.radiatus was conducted at KP Karangploso, Malang in 2002. Meanwhile,evaluation of F1 lines and their parents to M. incognita resistance wasconducted at Kendalrejo, Blitar on February to August 2003. In this area,the type of soil is medium fertile-light-sandy soil containing high densitiesof root-knot nematode larvae. Five sets of F1 resulted from hybridizationbetween H. canabinus and H. radiatus and their parents were planted in arow method without replication. Subsequently, these seeds were used asthe materials in this study. The observation and evaluation of these larvaewas performed at the Phytopathology Laboratory of the IndonesianTobacco and Fiber Crops Research Institute, Malang. The preliminaryresult showed that the average of the initial population was 96 larvae per100 ml of soil, which is categorized as a very high larvae content.Furthermore, the identification to the adult female larvae (perennial patternmethod) showed that the root-knot nematode found in the location ischaracterized as M. incognita. Parameters observed were total number ofgall per plant, degree of root damage, and populations of M. incognitalarvae in the soil as a R-factor (R = larvae reproduction). The degree ofresistance to M. incognita are analyzed according to Zeck method usingroot damage index. Results of this research are : all F1 from fiveinterspesific hybridization between KR 6 x Kal II, KR 11 x Kal II, KR 12x Kal II, Hc G-1 x Kal II, and Hc G-51 x Kal II are still more sucseptiblecompared to their male parent (Kal II) which is resistant to root-knotnematode.Key words : Hibiscus cannabinus L., interspecific, genetic variability,resistance, Meloidogyne incognita
TANAMAN KECUBUNG (Datura metel L.) SEBAGAI BAHAN BAKU INSEKTISIDA BOTANIS UNTUK MENGENDALIKAN HAMA Aspidomorpha milliaris F. HERWITA IDRIS
Jurnal Penelitian Tanaman Industri Vol 21, No 1 (2015): Maret 2015
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v21n1.2015.41-46

Abstract

ABSTRAKKecubung (Datura metel L.) adalah salah satu tanaman obattradisional yang berpotensi sebagai sumber insektisida botanis, namunsampai saat ini belum banyak diteliti. Tujuan penelitian ini adalah untukmengetahui efektivitas tanaman kecubung sebagai bahan insektisidabotanis, terhadap serangga Aspidomorpha milliaris F (Coleoptera:Crysomelidae). Penelitian dilakukan di KP. Laing Solok mulai bulan Aprilsampai Oktober 2012, dengan menggunakan rancangan acak lengkap (9perlakuan dan 3 ulangan). Perlakuan yang diuji adalah ekstrak daunkecubung pada konsentrasi 250, 500, 750, 1000, 1500, 2000, 2500, dan3500 ppm, serta 0 ppm sebagai kontrol. Perlakuan diaplikasikan secarakontak maupun non kontak. Serangga uji yang dipakai pada setiapperlakuan adalah 20 ekor larva instar III, IV, V, VI, dan 10 ekor imago.Parameter pengamatan meliputi persentase kematian, penurunan volumemakan larva dan imago, fekunditas, serta periode prereproduktif imago.Hasil penelitian menunjukkan ekstrak daun kecubung yang diaplikasikansecara kontak lebih toksik dibandingkan dengan non kontak. Ekstrak daunkecubung kosentrasi 3500 ppm bersifat toksik, menolak makan, danmengurangi fekunditas A. milliaris. Tingkat kematian larva A. milliarisinstar III, IV, V, dan VI berkisar 28,46-39,51%, sedangkan penurunanvolume makan sebesar 10,44-15,76%. Fekunditas A. milliaris menurun21,77%. Oleh karena itu, ekstrak daun kecubung dapat dikembangkansebagai insektisida botanis.Kata kunci: kecubung, insektisida botanis, Aspidomorpha milliaris F.ABSTRACTAmethyst (Datura metel L) is one of a potential plants used as rawmaterial of botanical insecticides, but until now it had not been prived.The purpose of the research is to determine the potential of the amethystas a botanical insecticide to Aspidomorpha milliaris F. (Coleoptera:Crysomelidae). The research carried out in Laing Solok ExperimentalGarden from April to October 2012, in a completely randomized design (9treatments and 3 replications). The treatments were amethyst leaf aqueousextract at concentrations of 250, 500, 750, 1000, 1500, 2000, 2500, 3500ppm, and 0 ppm as a control. The treatments were applied contact andnon-contact. Test insects used in each treatment was 20 larvae instar III,IV, V, VI and 10 imagos. Observation parameters include the mortalitypercentage and eating volume decrease of larvae and imago, fecundity,and imago prereproductive period. The results showed that the leaf extractamethyst which were applied contactly was more toxic than the non-contact. The amethyst leaf extracts at 3500 ppm concentration are toxic. Italso could refuse to eat and reduce fecundity of A. milliari. The mortalityrate for larval instar III, IV, V, and VI ranged 28.46-39.51%, while adecrease of eat volume ranged 10.44-15.76%. The fecundity of A.milliaris decreased 21.77%. Therefore, the leaf amethyst extract can bedeveloped as a botanical insecticide.Keywords: amethyst, botanical insecticides, Aspidomorpha milliaris, F
Shoot Borers Scirpophaga excerptalis Walker Attack on Sugarcane at Three Planting Systems ANDI MUHAMMAD AMIR; ELNA KARMAWATI
Jurnal Penelitian Tanaman Industri Vol 21, No 4 (2015): Desember 2015
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v21n4.2015.161-166

Abstract

ABSTRACTScirpophaga excerptalis W alker shoot borers is one of the major pests of sugarcane. The p lants at tacked by this pests wil l dec rease in yield, productivity, and sugar c rystal. The experiment was conducted at the experimental station, in Muktiharjo, Pati fr om January to May 201 3. The aims of the experiment was to determine the coverity of S. excerptalis s hoot borers a ttack on three su garcane cropping systems of (S. officinarum L.). The treatment co nsisted of thr ee cro pping systems: 1) single row, 2) wide double row, and 3) narrow double row. Treatments arranged in a randomized complate block design (RCBD) with three replications. The results showed that the use of wide double row cropping systems can increase shoot borers attack S. excerptalis, higher than the other cropping systems. Based on this research result, it is recommended to select planting system that can increase plant population but not to decrease intensity of light. From this, wide double row is selected.Keyword: Top borers, Scirpophaga excerptalis Walke, Saccharum officinarum L., planting system. SERANGAN PENGGEREK PUCUK Scirpophaga excerptalis WALKER (LEPIDOPTERA; PYRALIDAE) PADA TIGA SISTEM TANAM TEBU (Saccharum officinarum L.)ABSTRAKSalah satu jenis hama utama tanaman tebu adalah penggerek pucuk Scirpophaga excerptalis Walker. Serangan hama tersebut pada pertanaman tebu dapat menurunkan produktivitas, rendemen dan hasil hablurnya. Penelitian dilaksanakan di Kebun Percobaan Muktiharjo, Pati mulai bulan Januari sampai dengan Mei 2013. Penelitian ini bertujuan untuk mengetahui tingkat serangan penggerek pucuk S. excerptalis pada tiga sistem tanam tebu (S. officinarum). Perlakuan terdiri atas 3 sistem tanam, yaitu 1) juring tunggal, 2) juring ganda rapat, dan 3) juring ganda lebar, disusun dalam rancangan acak kelompok (RAK) dan diulang 3 kali. Hasil penelitian menunjukkan bahwa penggunaan juring ganda rapat pada sistem tanam tebu dapat meningkatkan serangan penggerek pucuk S. excerptalis lebih tinggi dibandingkan dengan juring ganda lebar dan juring tunggal. Berdasarkan hasil penelitian tersebut disarankan untuk memilih sistem tanam yang dapat meningkatkan populasi tanaman tetapi tidak menurunkan intensitas cahaya yang masuk. Pada hasil penelitian ini, sistem tanam yang dipilih adalah juring ganda lebar.Kata kunci: Penggerek pucuk, Scirpophaga excerptalis Walker, Saccharum officinarum L., sistem tanam
PENELITIAN PERUBAHAN WARNA DAN ETILEN SELAMA PEMERAMAN DAUN TEMBAKAU KULTIVAR MADURA SERTA PENGARUHNYA TERHADAP MUTU TEMBAKAU RAJANGAN JOKO PURDIYANTO
Jurnal Penelitian Tanaman Industri Vol 7, No 3 (2001): September, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n3.2001.93-97

Abstract

Colour alternation and et/tylene changes during ripening tobacco leaves cultivar Madura and its effect to the quality of slice Madura tobaccoThe colour change and elhylene production in the leaves of Madura tobacco (Nicotiana tabacum) during ripening was studied at "Labora¬ torium Biokimia Pusat Antar Universitas Pangan dan Gizi Universitas Gadjahmada Yogyakata" and "Laboratorium Inti dan Atom Jurusan I'isika, FMIPA Universitas Gadjahmada Yogyakata". The change of colour was measured with Chrommameter CR-200. while the production of ethylcne, ACC (1-aminocyclopropanc-l-carboxylic acid) and MACC (malonyl-ACC) were measured with Photoaccuslic Spectroscopy, from the sample of 100 kg tobacco leaves cv. Jepon grown from April to September 1995 in Plakpak, Pcgantenan, Pamekasan, East Java. The experiment was designed as a completely randomized design in three replicates. The leaves samples were taken randomly from the mature middle leaves Results showed that endogenous ethylcne production al the irst day al a level of 169 ppb. was able to initiate ripening. Conversion percentage of ACC to ethylcne for 8 days ripening increased from 7.7 up lo 61.4 %. F tests least signiicantly different (1%). showed that yellow intensity signiicantly increased on the second day. This indicated thai ripening process was stated on the second day. On the other hand green intensity significantly decreased at the ifth day, thus no chlorophyl degradation. Brightness was signiicantly observed on Ihe third day of ripening, meaning that ripening stated on the third day. Based on the three criteria, the best ripening period was from the third lo the ilth day. This implies that the farmers will have three day periods of ripening which can be arranged to overcome the shotage of man power for slicing the leaves.
EFEKTIVITAS BEBERAPA DEPOSIT FOSFAT ALAM INDONESIA SEBAGAI PUPUK SUMBER FOSFOR TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT PADA TANAH ULTISOLS A. KASNO; SUDIRMAN SUDIRMAN; M.T. SUTRIADI
Jurnal Penelitian Tanaman Industri Vol 16, No 4 (2010): Desember 2010
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v16n4.2010.165-171

Abstract

ABSTRAKPenelitian bertujuan untuk mempelajari pengaruh fosfat alam asalIndonesia terhadap kadar P dalam tanah dan pertumbuhan kelapa sawit.Penelitian dilaksanakan di rumah kaca Balai Penelitian Tanah di Laladon,Bogor dari bulan Juni sampai Desember 2009, dengan menggunakanrancangan percobaan acak kelompok dengan 8 perlakuan dan diulang 5kali. Perlakuan yang dicoba adalah 5 P-alam asal Indonesia, ditambahSuperphos, P-alam Tunisia, dan kontrol. Tanah yang digunakan adalahTypic Kanhapludults dan Typic Plinthudults yang diambil dari Lampung,dengan tanaman indikator adalah kelapa sawit. Hasil penelitianmenunjukkan bahwa pemupukan P nyata meningkatkan diameter batang,tinggi tanaman, berat akar dan berat kering tanaman. Pemupukan P denganSuperphos memberikan peningkatan yang lebih tinggi daripada pemu-pukan dengan fosfat alam. Efektivitas pupuk P-alam pada TypicPlintudults lebih rendah dibandingkan pada Typic Kanhapludults. PupukP-alam dari Indonesia sama efektifnya dengan P-alam Tunisia untukpemupukan tanaman kelapa sawit. Pemupukan P dengan Superphos padatanaman kelapa sawit nyata meningkatkan kadar P tanah lebih tinggidaripada kadar P tanah yang dipupuk P-alam. Pemberian pupuk P belumberpengaruh terhadap kadar P dalam akar dan tanaman kelapa sawit dalampembibitan.Kata kunci: Elaeis guinensis, kelapa sawit, tanah masam, fosfat alamABSTRACTEffectiviness of several rock phosphate deposites fromIndonesia as P fertilizer sources on the growth of oilpalmseedling on ultisolsThe aim of this research was to study the effect of rock phosphatefrom Indonesia on P content on the soil and growth of oil palm. Thisresearch was conducted at the glass house of Indonesian Soil ResearchInstitute, Laladon Bogor from June to December 2009, using randomizedcomplete block design (RCBD) with 8 treatments and 5 replicates. Thetreatments were 5 types of Indonesia rock phosphate, Superphos, Tunisiarock phosphate, and control. The soils used were Typic Kanhapudults andTypic Plinthudults, and oil palm nursery as plant indicator. The resultshowed that P fertlizer was significant to increase trunk diameter, plantheight, root weight, and plant dry weight. Superphos fertilizer increasedtrunk diameter, plant height, root weight, and plant dry weigth better thanrock phosphate. Effectivity of rock phosphate at Typic Plinthudults waslower than at Typic Kanhapludults. Indonesian rock phosphate waseffective for fertilizing oil palm, as well as Tunisia rock phosphate. Pfertilization using Superphos significantly increased P soil content and wasbetter than rock phosphate. Application of rock phosphate did notinfluence P contents in root and plant of oil palm in nursery.Key words: Elaeis guinensis, oil palm, acid soils, rock phosphate

Page 26 of 51 | Total Record : 504

 24   25   26   27   28 

Filter by Year

1998 2021


Reset
Filter By Issues
All Issue Vol 27, No 2 (2021): December 2021 Vol 27, No 1 (2021): June, 2021 Vol 26, No 2 (2020): December, 2020 Vol 26, No 1 (2020): June, 2020 Vol 25, No 2 (2019): Desember, 2019 Vol 25, No 1 (2019): Juni, 2019 Vol 24, No 2 (2018): Desember, 2018 Vol 24, No 1 (2018): Juni, 2018 Vol 23, No 2 (2017): Desember, 2017 Vol 23, No 1 (2017): Juni, 2017 Vol 22, No 4 (2016): Desember, 2016 Vol 22, No 3 (2016): September, 2016 Vol 22, No 2 (2016): Juni, 2016 Vol 22, No 1 (2016): Maret, 2016 Vol 21, No 4 (2015): Desember 2015 Vol 21, No 3 (2015): September 2015 Vol 21, No 2 (2015): Juni 2015 Vol 21, No 1 (2015): Maret 2015 Vol 20, No 4 (2014): Desember 2014 Vol 20, No 3 (2014): September 2014 Vol 20, No 2 (2014): Juni 2014 Vol 20, No 1 (2014): Maret 2014 Vol 19, No 4 (2013): Desember 2013 Vol 19, No 3 (2013): September 2013 Vol 19, No 2 (2013): Juni 2013 Vol 19, No 1 (2013): Maret 2013 Vol 18, No 4 (2012): Desember 2012 Vol 18, No 3 (2012): September 2012 Vol 18, No 2 (2012): Juni 2012 Vol 18, No 1 (2012): Maret 2012 Vol 17, No 4 (2011): Desember 2011 Vol 17, No 3 (2011): September 2011 Vol 17, No 2 (2011): Juni 2011 Vol 17, No 1 (2011): Maret 2011 Vol 16, No 4 (2010): Desember 2010 Vol 16, No 3 (2010): September 2010 Vol 16, No 2 (2010): Juni 2010 Vol 16, No 1 (2010): Maret 2010 Vol 15, No 4 (2009): Desember 2009 Vol 15, No 3 (2009): September 2009 Vol 15, No 2 (2009): Juni 2009 Vol 15, No 1 (2009): Maret 2009 Vol 14, No 4 (2008): Desember 2008 Vol 14, No 3 (2008): September 2008 Vol 14, No 2 (2008): Juni 2008 Vol 14, No 1 (2008): Maret 2008 Vol 13, No 4 (2007): DESEMBER 2007 Vol 13, No 3 (2007): SEPTEMBER 2007 Vol 13, No 2 (2007): JUNI 2007 Vol 13, No 1 (2007): MARET 2007 Vol 12, No 4 (2006): DESEMBER 2006 Vol 12, No 3 (2006): SEPTEMBER 2006 Vol 12, No 2 (2006): JUNI 2006 Vol 12, No 1 (2006): MARET 2006 Vol 11, No 4 (2005): DESEMBER 2005 Vol 11, No 3 (2005): SEPTEMBER 2005 Vol 11, No 2 (2005): JUNI 2005 Vol 11, No 1 (2005): Maret 2005 Vol 10, No 4 (2004): Desember, 2004 Vol 10, No 3 (2004): September, 2004 Vol 10, No 2 (2004): Juni 2004 Vol 10, No 1 (2004): Maret 2004 Vol 9, No 4 (2003): Desember 2003 Vol 9, No 3 (2003): September, 2003 Vol 9, No 2 (2003): Juni, 2003 Vol 9, No 1 (2003): Maret, 2003 Vol 8, No 4 (2002): Desember, 2002 Vol 8, No 3 (2002): September, 2002 Vol 8, No 2 (2002): Juni, 2002 Vol 8, No 1 (2002): Maret, 2002 Vol 7, No 4 (2001): Desember, 2001 Vol 7, No 3 (2001): September, 2001 Vol 7, No 2 (2001): Juni,2001 Vol 7, No 1 (2001): Maret, 2001 Vol 6, No 3 (2000): Desember, 2000 Vol 6, No 2 (2000): September, 2000 Vol 6, No 1 (2000): Juni, 2000 Vol 5, No 4 (2000): Maret, 2000 Vol 5, No 3 (1999): Desember, 1999 Vol 5, No 2 (1999): September, 1999 Vol 5, No 1 (1999): Juni, 1999 Vol 4, No 6 (1999): Maret, 1999 Vol 4, No 5 (1999): Januari, 1999 Vol 4, No 4 (1998): November, 1998 More Issue