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Sudika .
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Mataram
Agriculture, Biological Sciences & Forestry

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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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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.
KAJIAN KEMAJUAN SELEKSI MASSA SECARA INDEPENDENT CULLING LEVEL HINGGA SIKLUS KEDUA PADA TANAMAN JAGUNG Sudika .; Idris dan Erna Listiana
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 2 (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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ABSTRAK Tujuan penelitian adalah untuk mengetahui kemajuan seleksi massa yang dilakukan secara independent culling level dengan dua cara terhadap umur panen, daya hasil dan berangkasan segar. Rancangan yang digunakan dalam penelitian ini adalah rancangan acak lengkap kelompok dengan 4 kali ulangan. Perlakuannya sebanyak 6 populasi, yaitu P0, P1.1, P1.2, P2.1, P2.2 dan varietas unggul Sukmaraga. Data percobaan dianalisis dengan sidik ragam pada taraf nyata 5 persen. Kemajuan seleksi diperoleh dari koefisien regresi linear antara sifat yang diamati dengan siklus seleksi. Pengujian rerata menggunakan uji lanjut BNT0,05. Hasil penelitian menunjukkan bahwa kemajuan seleksi massa secara independent culling level per siklus sifat umur panen cara I sebesar -1,775 hari dan cara II, -2,250 hari; keduanya bersifat linear nyata. Kemajuan seleksi sifat hasil (berat biji kering pipil per plot) cara I, 0,544 kg dan cara II, 0,711 kg; keduanya bersifat linear tidak nyata; sedangkan untuk sifat berat berangkasan segar cara I sebesar 26,112 g dan cara II, 28,962 g per tanaman dan keduanya juga bersifat linear tidak nyata. Rerata umur panen hasil seleksi siklus kedua cara I (77,70 hari) dan cara II (76,75 hari) lebih genjah dibandingkan dengan umur panen populasi awal dan varietas unggul Sukmaraga; sedangkan sifat lainnya belum berubah. ABSTRACT The objectives of research were to determine the advance of mass selection conducted through independent culling level with two manners to maturity date, yield and greenfresh manure. Design used in this research was randomized completely block design with 4 replications. The treatment consisted of 6 populations, i.e. P0, P1.1, P1.2, P2.1, P2.2, and superior variety Sukmaraga. The observed data was analyzed using analysis of variance on 5% significant level. Selection advance was gained through linear regression coefficient between observed traits and selection cycles. Test of mean used Least significant Different (LSD) 5%. The result of this research showed that advance of mass selection through independent culling level per cycle of maturity date manner I was -1.775 days and manner II was -2.250 days. Both of them were significantly linear. Selection advance of yield (dry seed weight per plot) manner I was 0.544 kg and manner II was 0.711 kg, both of them was not significantly linear; while for weight of green manure manner I was 26.112 g and manner II was 28.962 g per plant and both of them was not significantly linear. Mean of maturity date of second cycle manner I (77.70 days) and manner II (76.75 days) was shorter than first population and superior variety Sukmaraga; while other traits was not change.
Co-Authors Erna Listiana Idris . Idris dan Erna Listiana