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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Ilmu Pertanian Jurnal Keteknikan Pertanian Jurnal Hortikultura Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Penelitian Tanaman Industri AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya agriTECH Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat EnviroScienteae Jurnal Penelitian Pertanian Tanaman Pangan ANNALES BOGORIENSES Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PERTANIAN PRESISI (JOURNAL OF PRECISION AGRICULTURE) Journal of Tropical Crop Science JURNAL PERTANIAN jurnal Ilmu Pertanian (Agricultural Science) ZIRAA'AH MAJALAH ILMIAH PERTANIAN Jurnal Penelitian Tanaman Industri (Littri) Statement : Jurnal Media Informasi Sosial dan Pendidikan El Dusturie: Jurnal Hukum dan Perundang-undangan Jurnal Tarbiyah Jamiat Kheir Annales Bogorienses Journal of Education and Islamic Studies
Slamet Susanto
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
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Penggunaan Galur Lemah Chili veinal mottle virus untuk Proteksi Silang Asniwita Asniwita; Sri Hendrastuti Hidayat; Gede Suastika; Slamet Susanto; Sriani Sujiprihati
Jurnal Fitopatologi Indonesia Vol 9 No 5 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (488.93 KB) | DOI: 10.14692/jfi.9.5.145

Abstract

Inoculation of mild virus strain prior to severe virus strain to protect plant against viral disease is the principle of cross protection. Five mild strains of Chili veinal mottle virus (ChiVMV), i.e. -KAR, -SPR, -SKT, -CSR, and -PGL were used as cross protection agent to protect chili pepper plants against severe strain infection of ChiVMV-CKB. The mild strains were inoculated mechanically prior inoculation of severe strain and the efficiency of cross protection was evaluated by observing symptom development and measuring crop yield. Inoculation of mild strains 7 days prior inoculation of severe stain was not able to protect the plant from infection of severe strain ChiVMV-CKB. Protective effect was observed when mild strains were inoculated at 14, 21, and 28 days prior inoculation of severe strain. Symptom development was suppressed or delayed, and crop yield was not significantly different with healthy plants. It was suggested that to obtain the best protection against severe strain, the mild strain should be applied as early as possible before the occurrence of severe strain infection.
Perbandingan Pola Pita Isoenzim 15 Aksesi Pamelo (Citrus maxima (Burm.) Merr.) Berbiji dan Tidak Berbiji dan Hubungan Kekerabatannya Arifah Rahayu; Slamet Susanto; Bambang S. Purwoko; Iswari S. Dewi
Jurnal Hortikultura Indonesia Vol. 3 No. 1 (2012): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.202 KB) | DOI: 10.29244/jhi.3.1.42-48

Abstract

ABSTRACTThere are many pummelo accessions in Indonesia, some of them are seedless. The objective of this work  was  to  compare  isoenzyme  banding  patterns  and to  assess  the  genetic  similarity  of  seeded  and seedless pummelo accessions. Electrophoresis analysis of proteins extracted from leaf tissues was uti lized to detect polymorphisms i.e. five isoenzymes  (esterase (EST), peroxidase (PER), malate dehydrogenase (MDH), acid phosphatase (ACP) and aspartate amino transferase (AAT). Based on principal component analysis, characters having the  main role in classifying pummelo accessions were MDH (Rf 0.14 and Rf 0.27)  and  ACP  (Rf  0.24  and  Rf  0.33). The accessions  showed  high  range  genetic  similarity  (28.6-94.7%), and at similarity coefficient 0.53  they  were classified into seeded and seedless  groups. It was concluded  that  isoenzymes  can  be  used  as  markers  in  differentiating seeded  and  seedless  pummelo accessions.Key words: genetic similarity, electrophoresis, marker, principal component analysis, polymorphismABSTRAKIndonesia memiliki banyak aksesi pamelo, baik yang berbiji maupun tidak berbiji. Penelitian ini bertujuan  untuk  membandingkan  pola  pita  isoenzim dan  mengetahui  keanekaragaman  genetik  antar aksesi  pamelo  berbiji  dan tidak  berbiji.  Analisis  isoenzim untuk  mendeteksi  polimorfisme dilakukan dengan  cara  elektroforesis  menggunakan  lima  sistem  enzim, yaitu  esterase  (EST),  peroksidase  (PER), malat dehidrogenase (MDH), asam fosfatase (ACP) dan aspartat amino transferase (AAT). Hasil analisis komponen utama  menunjukkan  bahwa  karakter  yang  berperan  penting  dalam pengelompokan  aksesi pamelo adalah MDH (Rf 0.14 dan Rf 0.27) dan ACP (Rf 0.24 dan Rf  0.33). Tingkat kesamaan genetik aksesi pamelo berkisar antara 28.6-94.7%, dan pada koefisien kemiripan 0.53 aksesi pamelo dibedakan atas kelompok berbiji dan tidak berbiji.  Dengan demikian isoenzim dapat digunakan sebagai penanda dalam membedakan aksesi pamelo berbiji dan tidak berbiji.Kata kunci: kemiripan genetik, elektroforesis, penanda, analisis komponen utama, polimorfisme
The Effect of Apex Pruning on Vegetative and Generative Growth of Roselle (Hibiscus sabdariffa L.) Slamet Susanto; Titistyas Gusti Aji; Arifah Rahayu
Jurnal Hortikultura Indonesia Vol. 4 No. 3 (2013): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.885 KB) | DOI: 10.29244/jhi.4.3.150-156

Abstract

ABSTRACTThe  experiment  was  aimed  at  studying  the  effect  of  number  of  branch on  vegetative  and generative growth of roselle. The experiment was conducted at Cikabayan Experimental Farm from February  to June  2009. The  experiment was  arranged  in  randomized  complete  block  design with single factor and consisted  of four levels of pruning: control (without  pruning), apex pruning with 5 branches,  apex  pruning  with  10  branches,  and  apex  pruning  with 15  branches,  each  with  three replications.  The  result  indicated  that pruning  with  different  number  of  branch  gave  effect  on decreasing  on some  variables  of  vegetative  and  generative  growth  of  roselle.  Plants experienced apex pruning with 15 branches did not show any differences on number of primary stems, number of secondary  stems,  number  of  leaves, number  of  flowers,  fresh  and  dry  weight  of  calyxes,  and anthocyanin content  in  calyxes.  Plants  experienced  pruning  with  different  number  of branches tended to have higher  anthocyanin content  than  those  on  control. Generally, plants with 15 primary branches gave the best effect on both vegetative and generative growth of roselle.Keywords: Hibiscus sabdariffa L., pruning, branch, growth ABSTRAKPenelitian  ini  bertujuan  untuk  mempelajari  pengaruh  jumlah  cabang  pada pertumbuhan vegetatif dan generatif rosela. Penelitian dilaksanakan di  Kebun Percobaan Cikabayan pada bulan Februari sampai Juni 2009. Percobaan disusun dalam rancangan acak lengkap dengan faktor tunggal dan  terdiri  dari  empat tingkat  pemangkasan:  kontrol  (tanpa  pemangkasan),  pemangkasan pucuk dengan  5  cabang,  pemangkasan  pucuk   dengan  10  cabang,  dan pemangkasan  pucuk   dengan  15 cabang,  masing-masing  dengan  tiga ulangan.  Hasil  penelitian  menunjukkan  bahwa  pemangkasan dengan  nomor yang  berbeda  dari  cabang  memberi  efek  pada  penurunan  pada  beberapa variabel pertumbuhan vegetatif dan generatif rosela. Tanaman dengan pemangkasan pucuk pada 15 cabang tidak  menunjukkan  perbedaan  pada jumlah  batang  utama,  jumlah  sekunder  batang,  jumlah  daun, jumlah bunga,  berat  segar  dan  kering  calyxes,  dan  konten  antosianin  di  calyxes. Tanaman mengalami  pemangkasan  dengan  nomor  yang  berbeda  dari cabang  cenderung  memiliki  konten antosianin  lebih  tinggi  dibandingkan pada  kontrol.  Umumnya,  tanaman  dengan  15  cabang  utama memberikan efek terbaik pada kedua pertumbuhan vegetatif dan generatif rosela.Kata kunci: Hibiscus sabdariffa L., pemangkasan, cabang, pertumbuhan
Pemberian Larutan Hara untuk Budidaya Tanaman Akar Wangi (Vetiveria zizanioides (L.) Nash) Menggunakan Teknologi Hidroponik Sistem Terapung (THST) Siti Aisyah Rohmatus Sa’adah; Slamet Susanto
Jurnal Hortikultura Indonesia Vol. 6 No. 2 (2015): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.678 KB) | DOI: 10.29244/jhi.6.2.75-83

Abstract

ABSTRACTThe  objective  of  this  experiment  was  to  determine  the  effect  of concentration  of  nutrient solution  on  growth  and  yield  of  vetiver (Vetiveria zizanioides  (L.)  Nash)  Verina  2  variety  using Hydroponic Floating System Technology (HFST). This experiment  was  conducted in the greenhouse of Cikabayan Bawah,  Experimental Farm  IPB,  with elevation of 240 m above sea level (asl) from December 2013 until February 2014.  The experiment  was based on a  randomized complete  block design  which consisted  of two experiments: (1) a plant without root  cutting (3 replicates), (2) plants with root cutting (6 replicates), with one factor and three-levels: 200, 400, and 800 nutrient solution concentrations.  The  results  showed  that  the  concentration of  the  nutrient  solution  had  significant effect  on  plant  height, number  of tillers,  number  of  new  saplings,  shoot  dry  weight  in  plants  that have not done cutting the roots, and root fresh weight in plants that have been done cutting the roots. Treatment  of  nutrient  solution  concentration  of  200  ppm resulted  in  poor  growth  plants.  Vetiver plants grown with the provision of nutrient solution concentration between 400 to 800 ppm acquired a better canopy growth and root development, therefore HFST could be applied to the cultivation of vitiver  on  the  concentration  of  the  nutrient  solution  to produce  a  better  canopy  growth  and  root development.Key words: floating system, hydroponic, nutrient solution, vetiver ABSTRAKPenelitian  ini  bertujuan  untuk  mengetahui  pengaruh  konsentrasi  larutan hara  terhadappertumbuhan  dan  hasil  akar  wangi  (Vetiveria  zizanioides (L.) Nash)  varietas  Verina  2  dengan menggunakan Teknologi Hidroponik Sistem Terapung (THST). Penelitian ini merupakan penelitian lanjutan  dari  penelitian sebelumnya  dan  dilakukan  di  rumah  kaca  Kebun  Penelitian Cikabayan Bawah IPB, dengan elevasi 240 m di atas permukaan laut (dpl) mulai dari bulan  Desember 2013 hingga  bulan  Februari  2014.  Penelitian disusun berdasarkan  rancangan kelompok  lengkap  teracak (RKLT)  yang terdiri  atas  dua  percobaan:  (1)  tanaman  tanpa  pemotongan  akar  (3 ulangan),  (2) tanaman  dengan  pemotongan akar (6 ulangan), dengan satu faktor dan tiga taraf: konsentrasi larutan hara  200,  400,  dan  800  ppm. Hasil penelitian  menunjukkan  bahwa  konsentrasi  larutan  hara berpengaruh nyata pada tinggi tanaman, jumlah anakan, jumlah anakan baru, dan bobot  kering tajuk pada  tanaman  tanpa  pemotongan  akar,  serta  berpengaruh  nyata terhadap bobot  basah  akar  pada tanaman  dengan  pemotongan  akar. Perlakuan  konsentrasi  larutan  hara  200  ppm  menghasilkan pertumbuhan dan  perkembangan  tanaman  yang  tidak  baik.  Tanaman  akar  wangi  yang ditanam dengan pemberian  konsentrasi  larutan  hara  antara  400  sampai 800 ppm mempunyai  pertumbuhan tajuk dan perkembangan akar tanaman yang lebih baik, oleh karena itu THST dapat diterapkan untuk budi  daya  akar  wangi pada konsentrasi  larutan  hara  tersebut  sehingga  dapat menghasilkan pertumbuhan tajuk dan perakaran yang baik.Kata kunci: sistem terapung, hidroponik, larutan hara, akar wangi
Produksi dan Kualitas Buah Stroberi pada Beberapa Sistem Irigasi Slamet Susanto; Bhayu Hartanti; Nurul Khumaida
Jurnal Hortikultura Indonesia Vol. 1 No. 1 (2010): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1616.37 KB) | DOI: 10.29244/jhi.1.1.1-9

Abstract

ABSTRACTThe objectives of this research was to study the fruit production and quality of strawberry grown under different irrigation system. The trial was arranged in a completely randomized design. Four irrigation systems were examined: drip irrigation applied daily, drip irrigation applied every 2 days, manual irrigation applied daily and manual irrigation applied every 2 days . The result showed that the treatments gave significant effects on vegetative growth. Plants irrigated daily produced more runn er than those irrigated every 2 days. Plants irrigated manually every 2 days lowered flower production. The drip irrigation applied daily gave the highest response on growth and yield without any difference on fruit quality. The system could be considered for hydroponic strawberry production.Key words: strawberry, irrigation, fruit production, fruit quality
Pertumbuhan Vegetatif dan Generatif Batang Atas Jeruk Pamelo ‘Nambangan’ pada Empat Jenis Interstok Slamet Susanto; Herik Sugeru; Sri Minten
Jurnal Hortikultura Indonesia Vol. 1 No. 2 (2010): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1197.416 KB) | DOI: 10.29244/jhi.1.2.53-58

Abstract

ABSTRACTThe objective of this research was to study the differences effects of interstock on scion growth, flowering and fruiting of ‘Nambangan’ pummelo (Citrus grandis (L.) Osbeck). The research was conducted from January to December 2005 in a green house of Cikabayan Research Station IPB, Dramaga. Th e research was arranged in randomized completely block design with singe factor i. e. kind of intertock consisted of Flying Dragon, Troyer, Citrumelo, and Rangpur Lime. All interstocks were grafted on Javanche Citroen rootstock. The result showed that the growth, flowering and fruiting of ‘Nambangan’ pummelo was significantly affected by kind of interstock. Citrumelo interstock tended to induce more vegetatif with low generatif growth of ‘Nambangan’ scion. Troyer, Rangpur Lime and Flying Dragon resulted in moderate growth of ‘Nambangan’ scion, however only Flying Dragon induced ‘Nambangan’ scion to produce more flower and fruit as compared with other interstocks. There was no significant different in carbohydrate content in leaves and C/N ratio among scion with four interstock studied.Key words: interstock, Nambangan, pummel o, flowering
Pertumbuhan Tanaman Pamelo (Citrus maxima (Burm.) Merr.) pada Berbagai Komposisi dan Volume Media Tanam Arifah Rahayu; , Setyono; Slamet Susanto
Jurnal Hortikultura Indonesia Vol. 7 No. 1 (2016): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.179 KB) | DOI: 10.29244/jhi.7.1.40-48

Abstract

ABSTRACTThis study was aimed at determining the planting media composition and media volume for pummelo growth. A complete randomized design with two factors was arranged in this experiment. The first factor was planting media composition, consisting of (1) rice hull charcoal : soil = 1 : 1, (2) cocopeat : soil = 1 : 1, (3) cocopeat : rice hull charcoal = 1 : 1, (4) rice hull charcoal : cocopeat : soil = 1 : 1 : 1, and (5) soil as control. The second factor was media volume, namely 10, 20, and 30 L. The results showed that plant height, leaf number, root volume and P leaf concentration of pummelo grown in 30 L media were significantly higher than those of pummelo grown in 10 L media, but were not different from those of grown in 20 L media, except for leaf number. Plant height, root volume and N leaf content of pummelo grown in rice hull charcoal : soil relatively were higher than those grown in rice hull charcoal : cocopeat. Planting media composition of rice hull charcoal : cocopeat had N and C content, C/N ratio, organic matter, K2O and cation exchange capacity higher, but had water content, bulk density, particle density lower than other growing medium. The most suitable planting medium for potted pummelo was rice hull charcoal : soil, and 20 L medium volume was still suitable until 24 WAP (weeks after planting).Key words: cocopeat, N and P leaves content, rice hull charcoal, root volume,ABSTRAKPenelitian ini bertujuan untuk mengetahui komposisi dan volume media tanam yang sesuai untuk pertumbuhan tanaman pamelo. Penelitian ini menggunakan rancangan acak lengkap (RAL) faktorial dengan dua faktor yaitu komposisi media tanam dan volume media tanam. Komposisi media tanam terdiri atas lima taraf, yaitu (1) arang sekam : tanah (1:1), (2) cocopeat : tanah (1:1), (3) cocopeat : arang sekam (1:1), (4) arang sekam : cocopeat : tanah (1:1:1), dan (5) tanah (kontrol), sedangkan volume media tanam terdiri atas tiga taraf (10, 20, dan 30 L). Hasil penelitian menunjukkan bahwa tinggi, jumlah daun, volume akar dan kandungan P daun tanaman pamelo pada volume media tanam 30 L lebih besar dibandingkan dengan pada media 10 L, tetapi tidak berbeda nyata dengan pada media tanam 20 L, kecuali jumlah daun. Tinggi tanaman, volume akar dan kandungan N daun tanaman pamelo pada media arang sekam : tanah relatif lebih besar dibandingkan dengan pada media arang sekam : cocopeat. Media tanam arang sekam : cocopeat memiliki kandungan N, C, nisbah C/N, bahan organik, K2O dan nilai tukar kation lebih tinggi, tetapi kadar air, bobot isi dan bobot jenis lebih rendah dibandingkan dengan media tanam lain. Dengan demikian, komposisi media tanam yang paling sesuai untuk tanaman pamelo adalah arang sekam : tanah dan volume media tanam 20 L masih sesuai untuk tanaman pamelo hingga 24 MST (minggu setelah tanam).Kata kunci: arang sekam, cocopeat, kandungan N dan P daun, volume akar
Evaluasi Keragaman Genetik Mutan Harapan Generasi MV1 Jeruk Keprok SoE (Citrus reticulata Blanco) Berdasarkan Penanda Morfologi dan ISSR Indriati Husain; Agus Purwito; Ali Husni; Kikin H. Mutaqin; Slamet Susanto
Jurnal Hortikultura Indonesia Vol. 7 No. 2 (2016): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.675 KB) | DOI: 10.29244/jhi.7.2.102-110

Abstract

ABSTRACTMandarin’s SoE is national variety originated from Mount of Mutis, Sub District of SoE, of Timur Tengah Selatan (TTS) District, East Nusa Tenggara (NTT). The genetic diversity of citrus can be induced by gamma ray irradiation on embryogenic callus cells thus producing new mutants. Genetic diversity detection can be based on morphological and ISSR markers. The aim of this research was to obtain information on the genetic diversity on putative mutants mandarin SoE induced by gamma ray irradiation based on morphology and markers ISSR. ISSR markers used are ISSR 1, 4, 6 and 8. Analysis of morphological diversity produced a dendrogram with the level of similarity between individuals each irradiation dose 83-95% with 5-17% genetic distance. Dendrogram analysis based on the genetic diversity ISSR markers showed high levels of 51-100% similarity and genetic distance 0-49%. Individuals samples obtained from gamma irradiation, based both morphological and ISSR markers, was different from individual's genetic make up before irradiation.Keywords: cluster, gamma ray, genetic distance, genetic diversitys, similarity ABSTRAKJeruk keprok SoE adalah jeruk varietas unggul nasional yang berasal dari Pegunungan Mutis, Kecamatan SoE, Kabupaten Timur Tengah Selatan (TTS), Provinsi Nusa Tenggara Timur (NTT). Keragaman genetik jeruk ini dapat diinduksi dengan iradiasi sinar gamma pada sel-sel kalus embriogenik untuk menghasilkan mutan yang solid. Deteksi keragaman genetik yang terbentuk dapat dilakukan secara morfologi maupun molekuler dengan marka ISSR. Tujuan Penelitian ini adalah untuk mendapatkan informasi mengenai keragaman genetik yang terjadi pada mutan harapan jeruk keprok SoE hasil iradiasi sinar gamma berdasarkan morfologi dan marka ISSR. Marka ISSR yang digunakan adalah ISSR 1, 4, 6 dan 8 pada beberapa mutan harapan jeruk keprok SoE. Analisis keragaman secara morfologi menghasilkan dendrogram dengan tingkat kemiripan antar individu masing-masing dosis iradiasi 83-95% dengan jarak genetik 5-17%. Dendrogram analisis keragaman genetik berdasar marka ISSR memperlihatkan tingkat kemiripan 51-100% dan jarak genetik 0-49%. Individu-individu sampel yang diuji hasil iradiasi gamma, baik secara morfologi dan marka ISSR, telah memiliki susunan genetik yang berbeda dari susunan genetik individu sebelum diiradiasi.Kata kunci: grup, jarak genetik, kemiripan, keragaman, sinar gamma
Perbaikan Pembungaan Pamelo melalui Aplikasi Strangulasi dan Zat Pemecah Dormansi Slamet Susanto; Maya Melati; Herik Sugeru
Jurnal Hortikultura Indonesia Vol. 7 No. 3 (2016): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (179.567 KB) | DOI: 10.29244/jhi.7.3.139-145

Abstract

ABSTRACTPummelo productivity is still low, therefore efforts should be made to increase its flowering and production. The objective of study was to determine the effectiveness of strangulation combined with the application of breaking dormancy substances to improve flowering of pummelo. The experiment was conducted in January to November 2015, at the Cikabayan Experimental Research Station, IPB. The carbohydrate and nitrogen analysis was done in laboratory of Postharvest Agriculture Research Institute, Bogor. Three-year-old pummelo grown in field was subjected for this research. Experiment used a completely randomized design (CRD) with two factors. The first factor was treatment to stimulate flowering, consisted of 3 levels i.e. single strangulation, double strangulation and control, and the second factor was the use of dormancy breaking substances, consisted of 3 types i.e. KNO3, Ethepon and BAP. Strangulation was performed by pressing the wire with a diameter of 2.0 mm into stem as deep as the diameter of the wire. Strangulation was done simultaneously and then released after 3 months. Dormancy breaking substance was applied immediately after releasing the wire for strangulation with the concentration of 200 ppm KNO3, 100 ppm Ethepon or 100 ppm BA. Treatments were replicated 4 times. The results showed that single and double strangulation treatments for 3 months were an effective way to induce flowering of young pummelo trees. Double strangulation produced more flowers as compared to single strangulation.Increased carbohydrate content and C/N ratio in leaves were observed on flower induced trees. Strangulation treatment for 3 months can increase flowering of young pummelo trees. Application of dormancy breaking substances did not have any effect on flowering induction in pummelo.Keywords: carbohydrate content, dormancy breaking substance, flower induction, pummelo, strangulationABSTRAKProduktivitas pamelo masih rendah sehingga perlu upaya peningkatan pembungaan dan produksinya. Penelitian ini bertujuan untuk mengetahui efektivitas strangulasi yang dikombinasikan dengan aplikasi zat pemecah dormansi dalam meningkatkan pembungaan jeruk pamelo. Penelitian dilaksanakan pada bulan Januari sampai Nopember 2015, bertempat di Kebun Percobaan IPB Cikabayan. Analisis karbohidrat dan nitrogen dilakukan di laboratorium BB Pasca Panen, Bogor. Percobaan menggunakan tanaman jeruk pamelo “Nambangan’ berumur 3 tahun dengan Rancangan Acak Lengkap (RAL) dua faktor. Sebagai faktor pertama yaitu perlakuan untuk menstimulasi pembungaan, terdiri atas 3 taraf perlakuan yaitu perlakuan strangulasi tunggal, strangulasi ganda dan kontrol, dan sebagai faktor kedua adalah penggunaan zat pemecah dormansi terdiri atas 3 jenis yaitu KNO3, Ethepon dan BAP. Masing-masing perlakuan diulang 4 kali sehingga terdapat 36 unit percobaan. Strangulasi dilaksanakan dengan melilitkan kawat dengan diameter 2.0 mm pada batang dengan menekan kawat ke batang sedalam diameter kawat tersebut. Strangulasi dilakukan serentak pada batang, strangulasi dilepas setelah 3 bulan kemudian. Zat pemecah dormansi diaplikasikan segera setelah pelepasan kawat strangulasi dengan konsentrasi masing-masing 200 ppm untuk KNO3, 100 ppm untuk Ethepon atau 100 ppm untuk BAP. Hasil penelitian menunjukkan perlakuan strangulasi selama 3 bulan merupakan cara efektif menginduksi pembungaan tanaman jeruk pamelo. Perlakuan strangulasi ganda menghasilkan bunga lebih banyak dibandingkan dengan strangulasi tunggal. Tanaman yang telah terinduksi menunjukkan tingginya kandungan karbohidrat pada tajuk tanaman sehingga meningkatkan rasio C/N. Perlakuan zat pemecah dormansi tidak memberikan pengaruh yang nyata terhadap pembungaan jeruk pamelo.Kata kunci: kandungan karbohidrat, pamelo, pembungaan, strangulasi, zat pemecah dormansi
Perbaikan Keragaan Bibit Jeruk Pamelo ‘Nambangan’ dengan Strangulasi Wahyu Fikrinda; Slamet Susanto
Jurnal Hortikultura Indonesia Vol. 8 No. 1 (2017): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.654 KB) | DOI: 10.29244/jhi.8.1.13-21

Abstract

ABSTRACTPummelo seedling has branches that grow irregularly, stright up, and has less branch. Attempt should be done to stimulate the formation of new branches. The objective of the research was to study the influence of single and double strangulation for stimulation of vegetative growth in order to improve canopy architecture of pummelo seedling. The experiment was conducted from March to September 2011 in green house of Cikabayan Experimental Station IPB, Bogor. Biochemical analysis was done in Laboratory of BALITRO, Bogor and Post-Harvest Laboratory, IPB. The experiment was conducted in Completely Randomized Block Design one factor consisting of 5 treatment: control, single strangulation, double strangulation with distance between wire 5 cm, 10 cm and 15 cm. The experiment consisted of 5 replicates. There were 25 experimental units. Each experimental unit contained 2 plants and total plants were 50 plants. Strangulation treatment was done in May 19th and wires were removed in August 10th 2011. The results of this research showed that single and double strangulation improved numbers of branch, the lenghth of shoots per plant, numbers of leaf, numbers of scion diameter, volume of canopies andstarch content in leaf. Double strangulation with distance between 2 wires 15 cm had open canopy and the highest volume of canopies with good canopy appearance at 19 week after application. Strangulation did not cause permanent damage of the sytem tissue and only took two months to recover.Key words: branch, canopy appearance, starch, volume of canopiesABSTRAKJeruk pamelo memiliki cabang yang tumbuh tidak beraturan, cenderung lurus ke atas dan bercabang sedikit. Upaya untuk merangsang pembentukan cabang baru adalah dengan strangulasi. Tujuan penelitian ini adalah mempelajari pengaruh strangulasi tunggal dan ganda dalam merangsang pertumbuhan vegetatif untuk perbaikan keragaan bibit jeruk pamelo. Percobaan dilaksanakan bulan Maret sampai September 2011 di greenhouse Kebun Percobaan Cikabayan IPB, Bogor. Analisis biokimia dilakukan di Laboratorium Balai Penelitian Tanaman Obat dan Aromatik (BALITRO), Bogor dan Laboratorium Pasca Panen, IPB. Percobaan menggunakan Rancangan Acak Lengkap (RAL) satu faktor sebanyak 5 perlakuan yaitu tanpa strangulasi, strangulasi tunggal dengan ketinggian 5 cm dari mata tempel, strangulasi ganda dengan jarak antar kawat 5 cm, 10 cm dan 15 cm. Percobaan terdiri atas 5 ulangan dan setiap satu satuan percobaan terdiri atas 2 tanaman sehingga total terdapat 50 tanaman. Aplikasi strangulasi dilaksanakan pada 19 Mei dan kawat dilepas pada 10 Agustus 2011. Hasil penelitian menunjukkan strangulasi tunggal dangan meningkatkan jumlah cabang, panjang cabang per tanaman, jumlah daun, diameter batang, volume tajuk, dan kandungan karbohidrat daun. Aplikasi strangulasi ganda memiliki tajuk terbuka dan volume tajuk terbesar dengan keragaan kanopi yang baik pada 19 minggu setelah perlakuan. Strangulasi tidak memberikan efek merusak secara permanen dan waktu pulihnya hanya dua bulanpada jaringan batang tanaman.Kata kunci: cabang, karbohidrat, keragaan tajuk, volume kanopi
Co-Authors , Hariyadi , Hasnam , Mukhlas , Sakhidin , Setyono . Santosa . Saputera . Strisno . Sutrisno A. S. Abidin Abdullah Bin Arif Abdullah Bin Arif, Abdullah Agus Purwito AHMAD JUNAEDI Ahmad Junaedi Ahmad S. Abidin Aji, Titistyas Gusti Ali Husni Ali Husni Ali Husni Ali Husni Amin Rejo Anas Dinurrohman Susila Ani Kurniawati Antik Siti Latifah Arifah Rahayu Asniwita Asniwita Atika Romalasari Bambang B. Santoso Bambang Budi Santoso Bambang Pramudya Bambang Pramudya Bambang S . Purwoko Bambang S. Purwoko Bambang S. Purwoko Bambang Sapta Purwoko Bhayu Hartanti DADANG DADANG Dadang Hermansyah Dadang Hermansyah Delys Inkorisa Dewi Sukma Dewi, Iswari Saraswati Dhika Prita Hapsari DJUMALI DJUMALI DJUMALI DJUMALI, DJUMALI Dona Rustani DWI ANDREAS SANTOSA Dyah Retno Wulandari Dyah Retno Wulandari Edi Minaji Pribadi Edi Santosa Efendi, Darda Endro Priherdityo Erniawati Diningsih Erniawati Diningsih Erniawati Diningsih Evan Yonda Pratama Faqih Udin Fidya Novita Fiki, Ainun Gede Suastika GEDE SUASTIKA Gede Suastika Gede Suastika Giyanto, Giyanto Habibi, Irfan Hadi K. Purwadaria Handian Purwawangsa Hariyadi Hariyadi Hariyadi3, , Harliani Sri Utami Henny Nurpa Anggriani Herik Sugeru Hermansyah, Dadang Hidayatulloh, Riyan Hilda Susanti Hulu, Versi Putra Jaya I Wayan Budiastra Indriati Husain Iswari S Dewi Iswari S. Dewi Iswari Saraswati Dewi Jamhari Jamhari Karmanah, Karmanah Kartika Ning Tyas Kartika Ning Tyas Ketty Suketi Kikin H Mutaqin Kosmaryadi, Nandi Kristriandiny, Oktiadewi Kudang B Seminar Kudang B. Seminar Kurniawan, Nafi’ Leo Mualim Lia Rachmawati M. Wahyudin Nasrulloh, M. Wahyudin Nasrulloh Matra, Deden Derajat Maya Dewi Sulistyningrum Maya Melati Moeljarno Djojomartono Moeljarno Djojomartono Moh Nailun Ni'am MOHAMMAD CHOLID MOHAMMAD CHOLID, MOHAMMAD Muhamad Ramdan, Muhamad Muhammad Syukur Muhammad Thamrin Natalia, Cristina Evi Nawawi, Muhammad Adlan Neni Musyarofah Nurul Khumaida Nurul Khumaida Nurul Khumaida Oktiadewi Kristriandiny Parameswara, Yosephine Sista Pratama, Evan Yonda Priherdityo, Endro Purwoko, Bambang Sapto R. Poerwanto Raden Ajeng Diana Widyastuti Rahayu, Arifah Resti Putri Septyani Resti Putri Septyani Retty Nurfazizah Roedhy Poerwanto Roedy Poerwanto Rumaisha, Azizah Rustam, Rustam Rustani, Dona Sakhidin Sakhidin Sandra A. Aziz Sandra Arifin Azis Sandra Arifin Aziz Santosa Santosa Sintho Wahyuning Ardie Siregar, Shella Elvira Siti Aisyah Rohmatus Sa’adah SRI HENDRASTUTI HIDAYAT Sri Minten Sriani Sujiprihati Sudirman Yahya Sukma, Dewi Suroso Suroso Suryo Wiyono Susanto, Renaldy Sutrisno Sutrisno Sutrisno Sutrisno Suyanto Kartosoewarno Thamara, Aria Tirtawinata, Mohamad Reza Titistyas Gusti Aji TRI ASMIRA DAMAYANTI Tri Muji Ermayanti Tri Muji Ermayanti Tri Muji Ermayanti Ummu Kalsum Ummu Kalsum Wahyu Fikrinda Widayanti, Siti Mariana Widyaswara, Muhammad Heraldi Garda Willy Bayuardi Suwarno Winarso D. Widodo Wulandari, Dyah Retno Wulandari, Dyah Retno Yosephine Sista Parameswara Yudi Chadirin Yul Y Nazaruddin