Examination of yield and seed quality of several soybean varieties by variation of harvest thermal total unit

Abstract

Dwipa I, Saswita W. 2016. Examination of yield and seed quality of several soybean varieties by variation of harvest thermal total unit. Pros Sem Nas Masy Biodiv Indon 2: 16-22. The using of thermal unit for examining the soybean (Glycine max (L.) Merril)is the best way for obtaining the best quality and result of soybean. The research was conducted in field of Pasar Ambacang, Kuranji Subdistrict, Padang City and Laboratory of Seed Technology, Department of Agronomy, Faculty of Agriculture, Andalas University, Padang from October 2011 to February 2012. This research aimed to determine the precise combination between soybean varieties and harvest time to obtain the best quality of seed, to determine the precise harvest time and to get the best variety. The research was arranged by factorial design of 3 x 4 in a Randomized Block Design (RBD) consisted of 3 groups. The data were analyzed by F test and continued by a further test of DNMRT at 5% significance level. The result showed that a combination of Bromo variety and harvest time by energy input in the amount of 1400-1450 T was the best result for seed index value than the other treatments. The difference of harvest time influenced to the percentage of soil emerging test, while the difference of soybean variety influenced to the weight of 100 seeds on water content 14% and the weight of dry grain per plot.