Variabilitas Dan Heritabilitas Mutu Biji Berbagai Genotipe Kedelai (Glycine max (L) Merril) Pada Dua Cara Aplikasi Pupuk Nitrogen

Abstract

The needs for soybean in the country are currently met by imported. In the last ten years, more than 60% of the soybeans are imported from various countries every year. The purpose of this study was to determine the components of the population of soybean seed quality in two ways of application nitrogen fertilizers and determination of the value of heritability and the correlation between yield components in soybean seed quality. The design used was Randomized Design Group (RAK) 2 factorials. The first factor is the genotype of soybean and the second method is the application of nitrogen fertilizer in the second degree. The results of this study indicated a significant component of the diversity of genotypes for all the observed properties such as the weight of seeds per plant, weight of 100 seeds, dry seed yield per plot, oil content and protein content of soybean seeds. Variety of environmental components in the form of nitrogen fertilizer application was significant only for the nature of the seed weight per plant, dry seed yield per plot and seed protein content. The component of the interaction between genotype diversity with fertilizer significant was only for the nature of the oil content of seeds. Heritability value of all properties that were observed demonstrated significant value when compared with the twice value of its standard error (SE). Soybean seed protein content was negatively correlated with yield components but the oil content of soybeans was not correlated with the yield components. Meanwhile the protein content of the oil contents of soybeans a negative correlation, although not significant.