Ilmu Pertanian (Agricultural Science)
Not a member yet
560 research outputs found
Sort by
Tanggapan Akar dan Bintil Akar Kacang Tanah Terhadap Kekeringan Pada Beberapa Umur Tanaman
No full textFluks CH4 dan Ketersediaan beberapa Unsur Hara akibat Pemberian Sulfur dan Kalium pada Pertanaman Padi Lembah Palu
No full textGrowth and yield of five prospective shallot selected accessions from true seed of shallot in lowland areas
Get PDFTrue seed of shallot (TSS) from open pollination crossing are in the heterogenous as a result of the heterozygous parents. This condition gives the opportunity to obtain new selected accession through the genetic variations of their seedlings. Five TSS cultivars of Biru Lancor, Pancasona, Tuk-Tuk, Lokananta, Sanren were used as planting materials to be evaluated the growth and bulb yield performance for the selection of excellent shallot selected accessions in bulb production. The 300 seeds of each cultivar were planted in the field of Faculty of Agriculture, Universitas Gadjah Mada, Banguntapan, Bantul District, Yogyakarta (100 m above sea level). All seedlings were observed for the survival rate, plant growth, and development of bulb. The results showed that the seedlings of Sanren, Lokananta, Pancasona, Tuk-Tuk, and Biru Lancor could germinate with different survival rate of 88%, 87%, 80%, 67.3% and 48%, respectively. There was a significant difference in number of leaves that effected in developing a single bulb and multi-bulb. Prospective selected accessions with high yield in lowland areas was as follows: Biru Lancor 12 plants (4%), Pancasona 20 plants (6.7%), Sanren 146 plants (48.7%), and Lokananta 25 plants (8.3%). All of the selected bulbs will be planted again for further evaluation in excellent trait of bulb aggregation (bulbs multiplication)
Karakteristik Perakaran Tanaman Padi Sawah IR 64 (Oryza sativa, L) pada Umur Bibit dan Jarak Tanam yang Berbeda
Get PDFThe research aimed to observe rooting characteristic of IR 64 wetland rice grown in different seedling age and crop spacing, in relation to the growth and yield of rice. The experiment was conducted on farmer’s field at Gadingan, Ngluwar, Magelang district from December 2007 to March 2008. The experiment was arranged using 3 x 3 factorial Randomized Completely Block Design (RCBD) with three replications. The first factor was seedling ages which consisted of 3 levels, namely 7 days (U1), 14 days (U2) and 21 days (U3). The second factor was three levels crop spacings, i.e: 10 cm x 10 cm (J1), 20 cm x 20 cm (J2) and 30 cm x 30 cm.The results showed that the difference of seedling age and crop spacing formed different rooting characteristics. The wider crop spacing, the more intensive rooting feature would be. Root volume, total root length and root dry weight of (30x30)cm2 were higher than (10x10)cm2 and (20x20)cm2 crop spacing. There were significant positive correlations between root variables and rice yield per hill. Although the younger seedling reduced date of flowering as well as harvesting age, both seedling age and crop spacing did not affect total rice yield
Kajian Keragaman dan Heritabilitas Kandungan β-Karoten Progeni Kelapa Sawit (Elaeis guineensis Jacq.) Tipe Dura
Get PDFPeningkatan kandungan β-karoten pada CPO saat ini menjadi prioritas utama pemuliaan tanaman kelapa sawit. Pemuliaan dapat dilakukan terhadap populasi yang memiliki keragaman dan daya waris terhadap sifat kandungan β-karoten tinggi. Hal inilah yang mendasari dilaksanakannya penelitian dengan tujuan mengetahui keragaman, heritabilitas dan korelasi kandungan β-karoten dengan karakter komponen hasil Progeni kelapa sawit tipe dura di kebun induk PT. DMS. Penelitian dilaksanakan di kebun induk Dami Mas Seed Estate (DMSE) dan Laboratorium Analisis Tandan DMSE PT. DMS, Kampar, Riau, serta Laboratorium Kimia Organik Balai Penelitian SMARTRI Libo, PT. Smart. Tbk, Siak. Riau. Bahan tanam yang digunakan terdiri dari 11 progeni dura.Hasil penelitian menunjukkan bahwa beberapa progeni kelapa sawit tipe dura di kebun induk PT. Dami Mas Sejahtera memiliki kandungan β-karoten relatif tinggi. Progeni 09 memiliki kandungan β-karoten tertinggi dengan keragaman dalam progeni sangat tinggi, sangat baik sebagai bahan pemuliaan. Kandungan β-karoten progeni kelapa sawit tipe dura mempunyai nilai koefisien variasi genetik (KVG) dan heritabilitas yang relatif tinggi. Koefisien Variasi Genetik berat tandan relatif agak tinggi, namun Koefisien Variasi Genetik persentase buah per tandan, berat buah, persentase mesokarp per buah, dan persentase minyak per mesokarp relatif rendah. Berat tandan, persentase buah per tandan, persentase mesokarp per buah memiliki nilai heritabilitas yang tinggi, namun berat buah dan persentase minyak per mesokarp heritabilitasnya rendah. Kandungan β-karoten berkorelasi negatif dengan berat buah
