Idris .
Fakultas Pertanian Universitas Mataram

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PENGARUH UMUR PANEN TERHADAP VIABILITAS BENIH KEDELAI VARIETAS WILIS Idris .; Sudharmawan AAK
CROP AGRO, Scientific Journal of Agronomy Vol 3 No 2 (2010): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk menetapkan saat panen yang tepat guna memperoleh benih kedelai varietas Wilis yang berviabilitas tinggi. Percobaan dilakukan dengan menggunakan metode eksperimental dengan Rancangan Acak Lengkap. Percobaan terdiri dari 5 perlakuan umur panen. Perlakuan tersebut meliputi umur panen 73 hari, 78 hari, 83 hari, 88 hari dan 93 hari setelah panen. Peubah yang diamati meliputi kadar air saat panen, daya kecambah, vigor benih, berat 100 butir biji dan berat biji per rumpun. Data dianalisis dengan analisis ragam pada taraf nyata 5 %. Perlakuan yang menunjukkan beda nyata diuji lanjut dengan uji beda nyata jujur dengan taraf nyata yang sama. Hasil penelitian menunjukkan bahwa perlakuan umur panen tidak memberikan pengaruh yang berbeda nyata terhadap viabilitas benih kedelai varietas Wilis, namun berdasarkan kadar air dan viabilitas, umur panen 83 hari setelah tanam merupakan umur yang tepat untuk dilakukan pemanenan. ABSTRACT The aim of this study was to determine the suitable time of harvest to obtain high viability of soybean seed of Willis variety. The study was conducted using experimental method with Completly Random Design. The experiment consisted of 5 harvest time treatments, those were 73, 78, 83, 88 and 93 days after planting. The variable observed were water content at harvest time, seed germination, seed vigor, weight of 100 seed and weight of seed per pood. The data were analyzed by analysis of variance at significant level of 5 %. The significant treatments were further analyzed by Honestly Significant Different with the significant level 5 %. The results showed that the differences in harvest time did not affect significantly to the viability of soybean seed, but based on water content and seed viability, harvest time 83 days after planting was the suitable time for harvesting.
PEMBENTUKAN VARIETAS UNGGUL JAGUNG TAHAN KERING DENGAN HASIL, BERANGKASAN SEGAR TINGGI, UMUR GENJAH (TAHUN I: HIBRIDISASI DAN SELEKSI MASSA SECARA INDEPENDENT CULLING LEVEL) Sudika .; Idris .; Erna Listiana
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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Abstract

ABSTRAK Tujuan penelitian yaitu untuk mendapatkan populasi dasar dari hasil persilangan tiga varietas unggul jagung komposit dengan populasi C2.1 dan mendapatkan populasi hasil seleksi siklus pertama, yaitu P1.1 dan P1.2. Pembentukan populasi dasar dengan persilangan antara varietas unggul bersari bebas (Gumarang, Lamuru, dan Sukmaraga) dengan populasi C2.1 secara resiprok. Perbaikan daya hasil, berangkasan segar dan umur panen menggunakan metode seleksi massa secara independent culling level selama satu siklus. Pengurangan efek lingkungan menggunakan metode grid system. Hasil penelitian menunjukkan, bahwa keberhasilan persilangan sebesar 95,43 % dan diperoleh benih hasil persilangan GMC2 sebanyak 6,7 kg; LMC2, 7,1 kg dan SRC2 sebanyak 7,6 kg dan ketiganya dibulk sebagai populasi dasar. Seleksi massa siklus pertama secara independent culling level telah dilakukan dan diperoleh benih P1.1 sebanyak 5,178 kg dan P1.2 sebanyak 4,964 kg. Seleksi massa siklus berikutnya perlu dilanjutkan guna meningkatkan rerata ketiga sifat tersebut. ABSTRACT This research aimed to obtain basic population from hybridization of three high yielding varieties of composite maize variety on C2.1 population; to obtain population of the first cycle selection, P1.1 and P1.2. Formation of basic population was done by reciprocal cross between open pollinated varieties (Gumarang, Lamuru and Sukmaraga) and C2.1 population. Improvement of yields, fresh biomass and harvest age used mass selection method by Independent culling level for one cycle. Decreased influence of environmental used grid system method. The result of this research, that successful of hybridization was 95.43 % and produced 6.7 kg of GMC2 hybrid seeds, 7.1 kg of LMC2 and 7.6 kg of SRC2 and all of them were bulked as a based population. First cycle of mass selection by independent culling level has been done and produced 5.178 kg P1.1 seeds and 4.964 kg of P1.2 seeds. Mass selection for second and thirth cycles were done to increase of population means of that traits.