KERAGAMAN GENETIK, HERITABILITAS, DAN KORELASI ANTAR KARAKTER 10 GENOTIPE TERPILIH JARAK PAGAR (JATROPHA CURCAS L.)
| dc.contributor | Puslitbangbun | en-US |
| dc.creator | HARTATI, R r. SRI; Pusat Penelitian dan Pengembangan Perkebunan Jl. Tentara Pelajar No. 1 Bogor | |
| dc.creator | SETIAWAN, ASEP; Departemen Agronomi dan Hortikultura, Fakultas Pertanian IPB Jl. Meranti, Kampus IPB Dramaga, Bogor | |
| dc.creator | HELIYANTO, BAMBANG; Balai Penelitian Tanaman Pemanis dan Serat Jl. Raya Karangploso, Kotak Pos 199, Malang 65152 | |
| dc.creator | SUDARSONO, SUDARSONO; Departemen Agronomi dan Hortikultura, Fakultas Pertanian IPB Jl. Meranti, Kampus IPB Dramaga, Bogor | |
| dc.date | 2012-06-05 | |
| dc.date.accessioned | 2018-05-24T01:41:16Z | |
| dc.date.available | 2018-05-24T01:41:16Z | |
| dc.date.issued | 2012-06-05 | |
| dc.description | ABSTRAKUntuk menyusun program pemuliaan jarak pagar berdaya hasiltinggi, diperlukan populasi dasar yang memiliki keragaman genetik yangtinggi terutama pada karakter yang berkaitan dengan daya hasil tanaman.Penelitian ini bertujuan untuk mengevaluasi keragaman genetik,heritabilitas, dan korelasi antar karakter genotipe terpilih. Sepuluhgenotipe dievaluasi di Kebun Percobaan Balai Penelitian TanamanRempah dan Aneka Tanaman Industri Pakuwon, Sukabumi mulai bulanAgustus 2009 - Juli 2010. Rancangan lingkungan adalah acak kelompoklengkap dengan 3 ulangan. Setiap unit percobaan terdiri atas 5 tanamanyang ditanam dalam 1 baris dengan jarak antar baris 2 m dan jarak dalambaris 1 m. Evaluasi dilakukan terhadap karakter vegetatif (meliputi tinggitanaman, lingkar batang, lebar kanopi, dan jumlah cabang total), karaktergeneratif (meliputi jumlah cabang produktif, umur mulai berbunga, jumlahtandan bunga, jumah tandan buah, fruit set), serta komponen hasil yaitujumlah buah per tanaman. Hasil penelitian menunjukkan 10 genotipe yangdievaluasi memiliki keragaman genetik yang luas pada karakter generatifumur mulai berbunga, jumlah tandan bunga, jumlah tandan buah, danjumlah buah per tanaman dengan nilai koefisien keragaman genetik(KKG) berturut-turut 21,89; 29,77; 32,08; dan 33,75. Karakter-karakter inimemiliki ragam genetik luas dan heritabilitas dalam arti luas yang tinggisehingga dapat dimanfaatkan sebagai kriteria seleksi. Karakter vegetatifjumlah cabang total memiliki keragaman genetik agak luas, heritabilitastinggi, dan berkorelasi positif dengan jumlah tandan bunga, jumlah tandanbuah, dan jumlah buah per tanaman sehingga dapat dipertimbangkansebagai kriteria seleksi.Kata kunci : Jatropha curcas, keragaman fenotipik, koefisien keragaman,ragam genetik, kriteria seleksiABSTRACTGenetic variability, heritability, and correlation amongcharacters of 10 selected genotypes of physic nut(Jatropha curcas L.)To arrange breeding programme of jatropha high yielding varieties,it is required population base having high genetic variabilities, especiallyin yield components. The objectives of this research were to evaluategenetic variability, heritability estimate, and analyze correlation amongcharacters of 10 physic nut genotypes. Ten Jatropha curcas genotypeswere evaluated at Pakuwon Experimental Station of Indonesian Spice andIndustrial Crops Research Institute, Sukabumi, from August 2009 - July2010. A randomized complete block design with 3 replicates was appliedin this experiment. Each experimental unit consisted of five plants grownin a row with 2 m spacing in line and 1 m in row. The observations weremade for vegetative characters (plant height, stem girth, canopy width, andnumber of total branches per plant), generative characters (days toflowering, number of productive branches, inflorescences, fruit bunchesper plant, and fruit set percentages), and yield component : number of fruitper plant. Results of the experiments indicated that the evaluatedgenotypes had wide genetic variability on several generative characters i.e.days to flowering, number of inflorescences, number of fruit bunches, andnumber of fruits per plant with genotypic variability coefficient (GVC)values of 21.89; 29.77; 32.08; and 33.75, respectively. Their geneticvariabilities were broad and high heritability. The total number of branchesas a vegetative character was fairly wide in genetic diversity, highheritability, and positively correlated with number of inflorescences,bunches, and fruits per plant. These characters can be considered asselection criteria.Key words : Jatropha curcas L., phenotypic variability, coefficient ofvariation, genetic variability, selection criterion | en-US |
| dc.format | application/pdf | |
| dc.identifier | http://ejurnal.litbang.pertanian.go.id/index.php/jptip/article/view/2147 | |
| dc.identifier | 10.21082/littri.v18n2.2012.74 - 80 | |
| dc.identifier.uri | https://repository.pertanian.go.id/handle/123456789/1709 | |
| dc.language | eng | |
| dc.publisher | Pusat Penelitian dan Pengembangan Perkebunan | en-US |
| dc.relation | http://ejurnal.litbang.pertanian.go.id/index.php/jptip/article/view/2147/1876 | |
| dc.source | 2528-6870 | |
| dc.source | 0853-8212 | |
| dc.source | Jurnal Penelitian Tanaman Industri; Vol 18, No 2 (2012): Juni 2012; 74-80 | en-US |
| dc.title | KERAGAMAN GENETIK, HERITABILITAS, DAN KORELASI ANTAR KARAKTER 10 GENOTIPE TERPILIH JARAK PAGAR (JATROPHA CURCAS L.) | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Peer-reviewed Article | en-US |