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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 6 Documents
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Search results for , issue "Vol 19, No 4 (2013): Desember 2013" : 6 Documents clear
EFEKTIVITAS FORMULA JAMUR Beauveria bassiana DALAM PENGENDALIAN PENGGEREK BUAH KAPAS (Helicoverpa armigera) IGAA. INDRAYANI; DECIYANTO SOETOPO; JOKO HARTONO
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.178-185

Abstract

ABSTRAKJamur entomopatogen Beauveria bassiana sangat potensialmengendalikan berbagai serangga hama, namun potensinya terhadappenggerek buah kapas (Helicoverpa armigera) belum banyak diteliti.Tujuan penelitian adalah untuk mengetahui efektivitas B. bassianaterhadap H. armigera. Penelitian dilakukan di Laboratorium PatologiSerangga dan Kebun Percobaan Karangploso, Balai Penelitian TanamanPemanis dan Serat mulai Januari hingga Desember 2012. Penelitian terdiriatas dua kegiatan di lapangan, yaitu (1) uji efektivitas B. bassiana terhadapH. armigera di pot, dan (2) uji efektivitas B. bassiana terhadap H.armigera di lapangan. Kegiatan pertama terdiri dari delapan perlakuankonsentrasi B. bassiana, yaitu: (1) 3,7 x 10 4 ; (2) 7,7 x 10 4 ; (3) 1,2 x 10 5 ;(4) 1,5 x 10 5 ; (5) 1,9 x 10 5;  (6) 2,3 x 10 5;  (7) 2,5 x 10 5 ; (8) 3,0 x 10 5konidia/ml; dan (9) kontrol. Perlakuan disusun dalam Rancangan AcakKelompok dengan 3 kali ulangan. Parameter yang diamati adalahmortalitas dan bobot larva hidup. Kegiatan kedua terdiri dari empatperlakuan konsentrasi B. bassiana, yaitu: (1) 3,1 x 10 11 ; (2) 6,2 x 10 11 ; (3)9,3 x 10 11 ; dan (4) 1,2 x 10 12 konidia/ha dengan dua pembanding(azadirachtin dan betasiflutrin), serta kontrol. Perlakuan disusun dalamRancangan Acak Kelompok dengan tiga kali ulangan. Parameter yangdiamati adalah populasi larva H. armigera dan laba-laba, kerusakan buahkapas, dan hasil kapas berbiji. Hasil uji efektivitas di pot menunjukkanhingga hari ke-7 setelah perlakuan B. bassiana masih efektif menyebabkanmortalitas larva H. armigera sebesar 46,7% dan meningkatkan kehilanganbobot larva hidup hingga 59,3%, terutama pada konsentrasi 2,3 x 10 5konidia/ml. Di lapangan, perlakuan jamur B. bassiana efektif menurunkanpopulasi larva H. armigera sekitar 36-48%, tetapi menurunkan populasilaba-laba hingga 48,4%, sehingga kurang aman bagi musuh alami tersebut.Perlakuan B. bassiana dapat menurunkan kerusakan buah kapas 10,1-10,3% dengan meningkatkan hasil kapas berbiji sekitar 12,1-29,7%.Kata kunci: Beauveria bassiana, Helicoverpa armigera, konidia, larva,mortalitasABSTRACTBeauveria bassiana is the most common fungal entomopathogenagainst several of insect pests. Its potency, however, has not been tested oncotton bollworm, H. armigera. The objective of study was to know theeffectivity of B. bassiana against H. armigera. This study had beenconducted at Pathology Laboratory and Experimental Station ofIndonesian Sweetener and Fiber Crops Research Institute (ISFCRI) fromJanuary to December 2012. The study consists of two field tests, e.g. teston B. bassiana effectivity against H. armigera (polybag testing) dan teston B. bassiana effectivity a against H. armigera (field testing). In polybagtesting, eight concentrations of B. bassiana and one control were used astreatment, e.g. (1) 3.7 x 10 4 ; (2) 7.7 x 10 4 ; (3) 1.2 x 10 5 ; (4) 1.5 x 10 5 ; (5)1.9 x 10 5;  (6) 2.3 x 10 5;  (7) 2.5 x 10 5 ; (8) 3.0 x 10 5  conidia/ml; and (9)control. Each treatment was arranged in Randomized Block Design withthree replications. Parameters recorded were mortality and weight ofsurvival larvae. The field testing consists of four concentrations of B.bassiana viz. 3.1 x 10 11 ; 6.2 x 10 11 ; 9.3 x 10 11 ; and (4) 1.2 x 10 12 conidia/hawhich compared to azadirachtin and betacyfluthrin. Each treatment wasarranged in Randomized Block Design with three replications. Parameterobserved were population of H. armigera larvae and its natural enemy(spiders), boll damage, and seed cotton yield. Result showed that until theday seventh the mortality of H. armigera larvae reached 46.7% due to B.bassiana and loss 59.3% of larval weight at 2,3 x 10 5 conidia/ml inpolybag testing. In field testing, B. bassiana proved to be relativelyharmful to spiders because it reduced the their population as 48.4%.However, the B. bassiana reduced of 36-48% the population of H.armigera larvae as well as the cotton boll damage of 10.1-10.3% andincreased the seed cotton yield ranged 12.1-29.7%.Key words: Beauveria bassiana, Helicoverpa armigera, conidia, larvae,mortality
IDENTIFIKASI KARAKTER MORFO-FISIOLOGI PENENTU PRODUKTIVITAS JAMBU METE (Anacardium occidentale) IRENG DARWATI; ROSITA S.M.; SETIAWAN SETIAWAN; HERA NURHAYATI
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.186-193

Abstract

ABSTRAKProduktivitas jambu mete di Indonesia masih rendah karenabudidayanya yang masih sederhana dan belum menggunakan bahantanaman unggul. Hasil tanaman ditentukan oleh beberapa karakter morfo-fisiologi seperti luas dan tebal daun, jumlah stomata, laju fotosintesis,kandungan klorofil, relative water content (RWC), dan potential osmotikdaun. Penelitian ini bertujuan untuk mengetahui karakter morfo-fisiologiyang menentukan hasil jambu mete. Penelitian dilaksanakan di KebunPercobaan Cikampek dan Laboratorium, Balittro, Bogor, Jawa Barat, padabulan Januari-Desember 2012. Bahan tanaman yang digunakan adalah duavarietas jambu mete produksi tinggi (B02 dan GG1) dan tiga varietasproduksi rendah (Laode Gani, Laode Kase, dan Laura). Tanamandibedakan dalam tiga kelompok umur (5, 8, dan 17 tahun). Parameter yangdiamati karakter morfologi seperti ketebalan daun (μm), luas daun (cm 2 ),produksi gelondong (kg/tanaman), berat kering daun (g/daun), anatomi(jumlah stomata), dan parameter fisiologi meliputi kandungan klorofil(a+b) (%), laju fotosintesis (μmol CO 2  m -2 s -1 ), karbohidrat daun (%),potensial air daun (bar), dan Relative Water Content (RWC) (%). Untukmengetahui parameter morfo-fisiologi yang berpengaruh nyata terhadapproduksi dilakukan uji komponen penentu hasil, yaitu peubah morfo-fisiologi terhadap produksi gelondong mete. Hasil penelitian menunjukkanpeubah klorofil tanaman jambu mete berpengaruh nyata antar aksesi. Hasilanalisis antar peubah morfo-fisiologi dan komponen hasil menunjukkanhanya peubah klorofil yang berkorelasi positif terhadap hasil gelondongaksesi jambu mete yang berproduktivitas tinggi. Fungsi hasil digambarkandalam formula ln hasil gelondong = 2,01 + 11,0 ln klorofil , sedangkan pada aksesiyang produktivitasnya rendah peubah klorofil tidak berpengaruh nyata.Fungsi ini mengindikasikan apabila kandungan klorofil meningkat 1%maka produksi gelondong akan meningkat 11%.Kata kunci: Anacardium occidentale, karakter morfo-fisiologi, produksiABSTRACTCashew productivity in Indonesia is still low, due to impropercultivation technique and the use of unimproved varieties. Crop yield isdetermined by several morpho-physiological characters such as leaf area,leaf thickness, the number of stomata, the rate of photosynthesis,chlorophyll content, relative water content (RWC), and leaf osmoticpotential. This study aimed to obtain morpho-physiological charactersaffecting cashew production. The research was conducted in the CikampekExperimental Station and in the Laboratory, ISMECRI, Bogor, West Java,from January to December 2012. The plant material used were twoselected high-yielding varieties (B02 and GG1) and three low-yieldingvarieties (Laode Gani, Laode Kase, and Laura). The plants were dividedinto three age groups (5, 8, and 17 years). Parameters measured weremorphological characteristics such as leaf thickness (µm), leaf area (cm 2 ),leaf dry weight (g/leaf), and nut yield (kg/tree), as well as anatomicalcharacteristic such as the number of stomata, and physiological parametersconsisted of chlorophyll content (a+b) (%), photosynthetic rate (µmol CO2m -2 s -1 ), leaf carbohydrate content (%), leaf water potential (bar) andrelative water content (RWC) (%). Data were analysed using componenttest to find morpho-physiological characteristics which was affecting nutyield. The result showed chlorophyll content was significantly affected nutyield among varieties as shown in the following function: ln nut yield = 2.01 +11.0 ln chlorophyll . The result indicated that when the chlorophyll contentincreased 1% the nut yield would increase 11%.Keywords: Anacardium occidentale, morpho-physiological characteris-tic, production
MODEL PENDUGAAN KANDUNGAN AIR, LEMAK DAN ASAM LEMAK BEBAS PADA TIGA PROVENAN BIJI JARAK PAGAR (Jatropha curcas L.) MENGGUNAKAN SPEKTROSKOPI INFRAMERAH DEKAT DENGAN METODE PARTIAL LEAST SQUARE (PLS) LADY C. E. CH. LENGKEY; I WAYAN BUDIASTRA; KUDANG B. SEMINAR; BAMBANG S. PURWOKO
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.203-211

Abstract

ABSTRAKJarak pagar berpotensi sebagai sumber biodiesel karena kandunganlemak yang tinggi (>40%) dan belum ada penggunaan lainnya.Spektroskopi (Near Infrared) NIR adalah metode yang cepat untukmengukur spektrum sampel dan tidak terdapat limbah kimia. Tujuanpenelitian adalah mengembangkan metode pendugaan komposisi kimiabeberapa  provenan  jarak  pagar  berdasarkan  spektroskopi  NIRmenggunakan kalibrasi PLS. Pengujian dilakukan menggunakan tigaprovenan jarak pagar yaitu IP-3A, IP-3M, dan IP-3P masing-masing 85sampel. Spektrum reflektansi diukur menggunakan alat NIRFlex SolidsPetri pada panjang gelombang 1000–2500 nm. Sekitar ⅔ jumlah sampeldigunakan untuk mengembangkan persamaan kalibrasi dan ⅓ jumlahsampel untuk validasi. Pra perlakuan data spektrum dilakukan dengannormalisasi antara 0-1, turunan pertama Savitzky-Golay 9 titik dangabungan keduanya. Hasil penelitian menunjukkan spektroskopi NIRdapat menduga kadar air, lemak, dan asam lemak bebas . Koefisienkorelasi (r) antara komponen kimia metode acuan dengan dugaan NIR>0,83 menunjukkan ketepatan model cukup baik (r kadar air=0,96, r kadarlemak=0,92, dan r ALB=0,89 ). Konsistensi model kalibrasi kadarair=94,85%, lemak=82,56%, dan ALB=87,80%. Koefisien keragamandugaan (Prediction Coeficient Variability/PCV) ketiga model <10%menunjukkan model yang dibangun cukup handal. Ratio of standard errorprediction to deviation (RPD) menunjukkan metode spektroskopi NIRdapat digunakan untuk menentukan kadar air (RPD=3,30) dan lemak(RPD=2,06). Model-model yang dikembangkan secara umum layakuntuk menentukan kadar air dan lemak biji jarak pagar, tetapi belumoptimal untuk penentuan kadar ALB biji jarak pagar.Kata kunci: NIR , jarak pagar, kadar air, kadar lemak, kadar asam lemakbebasABSTRACTPhysic nut is a potential source of biodiesel. It is high in fat content,above 40% and has not been usesed for other purposes. Moisture, free fattyacid, and fat content are the chemical compounds and determinant factorfor physic nut seed quality. The objective of this study was to develop amethod to predict chemical composition of physic nut by NIRspectroscopy and PLS calibration. The study was conducted using threeprovenances of physic nut, i.e. IP-3A, IP-3M, and IP-3P, with 85 sampleseach. The wavelengths of near infrared reflectance ranged from 1000 to2500 nm, and measured by NIR Flex Solids Petri Apparatus.Approximately ⅔ of total samples were used for developing calibrationequation, while ⅓ of total samples for performing validation. Pre-treatmentof spectrum data was done by applying normalization, first derivative ofSavitzky–Golay 9 points, and as well as their combination. The resultsshowed that NIR spectroscopy performed acceptable prediction formoisture and fat content. Correlation coefficients (r) between the referencemethod and NIR prediction were 0.96 for moisture content, 0.92 for fatcontent, and 0.89 for FFA and the consistency of the model were 94.85%for moisture content, 82.56% for fat, and 87.80% for FFA. Prediction ofcoefficient of variability (PCV) of the three models ≤10 % shows that themodels are reliable. Ratio of standard error prediction to deviation (RPD)for moisture content has the potential to be used for screening (RPD=3.30)though the fat content model has rough screening (RPD=2.06).Key words: NIR, physic nut, moisture, fat, free fatty acid contents.
ANALISIS DIVERSITAS GENETIK AKSESI KELAPA SAWIT KAMERUN BERDASARKAN MARKA SSR I MADE TASMA; SEKAR ARUMSARI
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.194-202

Abstract

ABSTRAKDiversitas genetik aksesi kelapa sawit Indonesia saat ini sangatrendah. Dalam usaha meningkatkan keragaman genetik telah dilakukaneksplorasi plasma nutfah di pusat keragaman genetik kelapa sawit diKamerun. Tujuan dari penelitian ini untuk mengetahui diversitas genetikdan tingkat polimorfisme berdasarkan marka SSR aksesi-aksesi kelapasawit Kamerun. Bahan tanaman yang digunakan 49 aksesi kelapa sawitKamerun, Afrika yang ditanam di Kebun Sumber Daya Genetik (SDG)Sawit Sijunjung, Sumatera Barat. DNA genomik diisolasi dari tiapindividu aksesi menggunakan protokol isolasi DNA untuk tanamanbergetah. DNA dianalisis menggunakan 20 marka SSR. Dendrogramkekerabatan dikonstruksi menggunakan metode Unweighted Pair GroupMethod Arithmetic (UPGMA) melalui software NTSYS-pc (NumericalTaxonomy and Multivariate Analysis System) versi 2.1-pc. Hasil penelitianmenunjukkan nilai polimorfisme information content (PIC) marka SSRtinggi sebesar 0,80 (berkisar 0,63-0,91). Jumlah alel yang terdeteksi permarka SSR berkisar antara 4-15 alel per lokus SSR (rata-rata 8,75).Analisis filogenetik 49 aksesi menghasilkan diversitas genetik 12,5-54,72% (kemiripan genetik 55,28-87,50%). Pada diversitas genetik54,72%, aksesi Kamerun terbagi menjadi tujuh kelompok masing-masingterdiri dari 9, 28, 4, 2, 1, 2, dan 3 aksesi. Aksesi dengan diversitas genetiktinggi dan berada pada klaster berbeda, potensial digunakan sebagai calontetua dalam program pemuliaan kelapa sawit.Kata kunci: Elaeis guineensis Jacq., diversitas genetik, plasma nutfah,marka SSRABSTRACTGenetic diversity of the Indonesian oil palm collection is very low.To improve their genetic variability, exploration from the oil palm centerof origins has been done in Kamerun. The objectives of this study were todetermine genetic and polymorphism level of the SSR markers Cameroon-originated oil palm accessions. Genetic materials used were 49 Cameroon-originated oil palm accessions collected at Sijunjung Oil Palm GermplamCollection Station, West Sumatera. Genomic DNA was isolated using aprotocol for isolating DNA from leaves rich with latex. DNA was analyzedusing 20 SSR markers. A dendogram was constructed using theUnweighted Pair Group Method Arithmetic (UPGMA) method through theNumerical Taxonomy and Multivariate Analysis System software(NTSYS-pc) version 2.1-pc. Results showed that the polimorfismeinformation content (PIC) values of the SSR markers used was high, 0.80(range from 0.63-0.91). The average number of the SSR alleles detectedwas also high, 8.75 alleles (range from 4-15 alleles per SSR locus).Phylogenetic analysis of the 49 oil palm accessions resulted geneticdiversity of 12.5-54.72% (genetic similarity of 55.28-87.50%). At geneticdiversity 54.72%, the 49 accessions were divided into seven clusters, eachconsisted of 9, 28, 4, 2, 1, 2, and 3 accesions, respectively. Accessionswith high genetic diversity and located at different clusters may be usefulas parent candidates in the future oil palm breeding programs.Key words: Elaeis guineensis Jacq., genetic diversity, germplasm, SSRmarkers
POTENSI BAKTERI ENDOFIT DALAM UPAYA MENINGKATKAN PERTUMBUHAN, PRODUKSI, DAN KANDUNGAN ANDROGRAFOLID PADA TANAMAN SAMBILOTO GUSMAINI GUSMAINI; SANDRA ARIFIN AZIZ; ABDUL MUNIF; DIDY SOPANDIE; NURLIANI BERMAWIE
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.167-177

Abstract

ABSTRAKBakteri endofit hidup di dalam jaringan tanaman yang sehat danberperan antara lain di dalam memacu pertumbuhan tanaman denganmenghasilkan senyawa-senyawa zat pengatur tumbuh, seperti IAA, GA 3 ,dan Sitokinin. Tujuan penelitian ini untuk mengevaluasi potensi bakteriendofit dalam  meningkatkan pertumbuhan, produksi, dan kadarandrografolid pada tanaman sambiloto. Penelitian dilakukan di rumah kacaBalittro Cimanggu Bogor pada Oktober 2011–Mei 2012. Perlakuandisusun mengikuti Rancangan Acak Kelompok, enam perlakuan danempat ulangan. Perlakuan terdiri dari (1) kontrol, dan perlakuan bakteriendofit yaitu (2) 20BB, (3) 5MD, (4) 20BD, (5) 20CD (perlakuan 2-5masing-masing terdiri dari 4 jenis isolat), dan (6) 90AA (isolat tunggal).Suspensi bakteri endofit (50 ml/tanaman) diberikan 4 kali yaitu padaminggu ke 3, 5, 7, dan 9 setelah tanam dengan konsentrasi 10 10 spk/ml.Hasil penelitian menunjukkan bahwa bakteri endofit berpengaruh postifdan nyata dalam meningkatkan pertumbuhan, produksi herba segar dankering serta andrografolid pada tanaman sambiloto lebih baikdibandingkan kontrol. Peningkatan pertumbuhan tertinggi ditunjukkanpada tinggi tanaman dan jumlah cabang primer yaitu masing-masing24,7% (20 CD) dan 42,2% (20 BB). Produksi herba kering meningkat 25-82,81%, sejalan dengan meningkatnya serapan hara N (64,7-158,8%), P(50-100%), dan K (65-155%). Peningkatan produksi herba kering danandrografolid terbaik diperoleh dari penggunaan 20 CD (82,81 dan142,11%), 20 BB (88,75 dan 131,58%), dan 20 BD (65,63 dan 131,58%).Implikasi dari hasil penelitian ini bahwa bakteri endofit berpotensi untukdikembangkan pada budidaya tanaman sambiloto.Kata kunci: Andrographis paniculata, bakteri endofit, andrografolid,pertumbuhan, produksiABSTRACTEndophytic bacteria live within healthy plant tissue and playimportant roles, such as producing compounds of plant growth regulatorssubstances such as IAA, GA 3 , and Cytokinin. The aims of this research isto evaluate the potential of endophytic bacteria to promote the growth,andrographolide content, and dry matter yield of king of bitter. Theresearch was conducted in the greenhouse of Cimanggu Balittro in October2011-May 2012. Treatments were arranged in a randomized completeblock design with six treatments and four replications. Treatments consistof (1) control, and 5 kinds of endophytic bacteria isolates such as (2)20BB, (3) 5MD, (4) 20BD, (5) 20CD (treatments no.2-5, consisted of 4types of isolate), and (6) 90AA (single isolate). The highest presentage ofplant height and number of primary branches were obtained from thetreatment of 20CD (24.7%) and 20BB (42.2%). Increase in the dry herbyield of 25-82.81% was in agreement with increasing in uptake of N (64.7-158.8%), P (50-100%), and K (65-155%). The best treatment with whichyielding high of dry herbs and andrographolide was 20CD isolates (82.81and 142.11%), followed with 20 BB (88.75 and 131.58%), and 20 BD(65.63 and 131.58%). The study implies that endophytic bacteria havepotential for development of king of bitter cultivation.Key words: Andrographis paniculata, endophytic bacteria, androgra-pholide, growth, yield
DINAMIKA POPULASI KUTU TEMPURUNG (Coccus viridis) DAN KUTUDAUN (Aphis gossypii) PADA TIGA VARIETAS KOPI ARABIKA (Coffea Arabica) RISMAYANI, RISMAYANI; RUBIYO, RUBIYO; DEWI IBRAHIM, MEYNARTI SARI
Jurnal Penelitian Tanaman Industri Vol 19, No 4 (2013): Desember 2013
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v19n4.2013.159-166

Abstract

ABSTRAKSalah satu kendala dalam pembibitan kopi arabika di rumah kaca adalahadanya serangan hama kutu tempurung (Coccus viridis) dan kutudaun(Aphis gossypii) yang dapat menghambat pertumbuhan dan perkembangantanaman. Persaingan dalam memanfaatkan unsur hara dan nutrisi yangberada pada jaringan tanaman kopi dapat menyebabkan tanaman yangterserang menjadi lebih parah bahkan tidak jarang menyebabkan kematiantanaman. Penelitian ini bertujuan untuk mengetahui dinamika populasikutu tempurung dan kutudaun pada benih kopi arabika varietas SigararUtang, Kartika, dan S795. Penelitian dilakukan di rumah kaca PusatPenelitian dan Pengembangan Perkebunan (Puslitbangbun), sejak bulanAgustus 2011 sampai Januari 2012. Jumlah benih kopi arabika yangdiamati sebanyak 200 benih yang terdiri dari varietas S795, Sigarar utang,dan Kartika. Pengamatan dilakukan setiap dua minggu sekali sebanyaksepuluh kali pengamatan dengan menghitung populasi serangan hama danmembandingkan frekuensi populasi (perkembangan) kutu tempurung (C.viridis) dan kutudaun (A. gossypii) dengan metode regresi dan uji t. Darihasil pengamatan, ditemukan 2 jenis populasi hama yaitu populasi kututempurung (C. viridis) dan kutudaun (A. gossypii) yang menyerang benihkopi arabika di pembibitan dengan tingkat populasi kutu tempurung (C.viridis) lebih banyak dijumpai dibandingkan dengan populasi kutudaun (A.gossypii) yaitu sebanyak 81,23%. Pada kopi arabika varietas Kartikapaling banyak ditemukan populasi kutu tempurung (C. viridis) dan kutudaun (A. gossypii) dibandingkan dengan varietas Sigarar Utang dan S795.Kopi arabika varietas Kartika memiliki percabangan yang agak lentur danmemiliki ruas yang pendek sehingga kutu tempurung (C.viridis) dankutudaun (A. gossypii) lebih senang berinang pada varietas Kartikadibandingkan varietas Sigarar Utang dan S795, karena lebih mudah untukmemperoleh makanannya dengan mengisap cairan yang ada padapercabangannya. Perkembangan populasi C. viridis membentuk garis lurusselama 5 bulan dengan nilai r masing-masing 0,98 pada varietas SigararUtang; 0,98 pada varietas Kartika; dan 0,99 pada varietas S795.Perkembangan populasi A. gossypii membentuk dua buah garis yangbertemu di satu titik dan sebuah garis lurus dengan nilai r masing-masing0,99 pada Sigarar Utang; 0,98 pada varietas Kartika; dan 0,99 padavarietas S795.Kata kunci: Kopi arabika, dinamika populasi, Aphis gossypii, CoccusviridisABSTRACTOne of the main constraints on the growth of coffee seedlings in thegreenhouse is pests lice green scales (Coccus viridis) and Aphids (Aphidsgossypii) that can inhibit the growth of plants. Competition in utilizingnutrients can cause the attacked plants to become more severe, even someplants to be dead. This study aims to determine the population dynamics ofC. viridis and A. gossypii on arabica coffee seedlings of Sigarar Utang,Kartika, and S795 varieties. The study was conducted in the greenhouse ofIndonesian Center For Estate Crops Research and Development, fromAugust 2011 to January 2012. 200 seedlings of arabica coffee consisting ofS795, Sigarar Utang, and Kartika varieties were planted in polythene bagsin the greenhouse. Observations were made every two weeks for ten timesthe observations by calculating the pest populations and comparepopulation growth of C. viridis and A. gossypii by regression method and ttest. It was found that mite green scale (C. viridis) population were moredominant than the aphids (A. gossypii) population, with a total populationof green scales (C. viridis) as much as 81.23%. Green scales (C. viridis)and aphids (A. gossypii) were found more abundant in the Kartikaseedlings compared to Sigarar Utang and S795 varieties. It is easier for thepests to obtain their food by sucking the liquid inside in the branches. Thegrowth population of C. viridis forming a straight line for 5 months with rvalues respectively, Sigarar Utang is 0,98; Kartika is 0,98; and S795 is0,97. Growth population of A. gossypii forming straight lines with thevalue of r : Sigarar Utang is 0,99; Kartika is 0,98; and S795 is 0,99.Key words: Coffea arabica, population dynamics, Aphis gossypii, Coccusviridis

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