Genotype x environment interaction for selected characters from R1 up to R5 reproductive stage in soybean

إنجليزي. Field experiments were conducted to study genotype x environment infection for selected characters between anthesis and beginning of seed growth in soybean. Ten genotypes, i.e. three parental lines and seven F8 offsprings were planted just before a wet season in two locations: at Kendalpayak-Malang and at Muneng-Probolinggo. Both locations belong to Research Institute for Legume and Tuber Crops and are located in East Java, Indonesia. The reproductive growth stages were defined according for Fehr and Caviness. The evaluation started with begin of flowering (R1). Total leaf chlorophyll content, leaf area index, specific leaf weight, and biomass were measured at begin of seed growth (R5). Significant genotype x environment interactions were observed for all characters studied except for specific leaf weight

الأندونيسية. Percobaan di lapang telah dilakukan untuk mempelajari interaksi genotipe x lingkungan beberapa karakter dari anthesis hingga fase awal perkembangan biji pada kedelai. Sepuluh genotipe terdiri dari tiga galur tetua dan tujuh generasi F8 turunannya telah ditanam menjelang musim hujan di dua lokasi, Kendalpayak-Malang dan Muneng-Probolinggo. Dua lokasi tersebut adalah milik Balai Penelitian Tanaman Kacang-kacangan dan Umbi-umbian, yang terletak di Jawa Timur, Indonesia. Fase reproduktif diukur berdasarkan metoda Fehr dan Caviness. Evaluasi dimulai dari awal periode pembungaan (R1). Klorofil total daun, indeks luas daun, berat daun spesifik, dan biomas diukur pada fase awal perkembangan biji (R5). Terdapat interaksi genotipe x lingkungan yang nyata untuk seluruh karakter yang dipelajari kecuali untuk karakter berat daun spesifik