Ecological Regionalization Of Soybean Protein And Fat Content Of Jilin Province And Place Of The Year Effect

In this research,9 typical spring soybean varieties of Jilin province of China which had different quality characters (High-protein group,High-oil group and common group) were planted in 6 different ecological region in Jilin province. Soybean yield and quality traits responded to the ecology condition was studied using the meteorological data and the regionalization of quality ecology was discussed in this experiment. The results were as following:The correlation between yield and yield components indicated that number of effective pods per plant and seed number per plant were significantly positive correlative with yield,100-seed weight only had a positive correlation.Multifactor analysis of variance showed, the effect of soybean varieties,planting years,planting locations* planting years,varieties* locations,varieties* planting years and varieties* locations* planting years on soybean yield reached significant or extremely significant level, but the effect of planting locations did not. Among different soybean types, High-Oil type soybean had the highest yield, followed by Common-type and High-Protein type. Among different planting years, yield in 2006 was the highest, and then the yield in 2007 and 2005.The yield difference in different planting years was caused by environmental conditions among different years, especially meteorological conditions.The effect of different varieties on quality of soybean reached the significance level, oil content was negative correlative with protein content in all varieties. Oil content,protein content and total content of 9 varieties had no difference among 3 years at every location, which indicated that the quality of soybean was stable for its gene trait. The quality of soybean was significantly different among 6 locations, which meant different ecology conditions had different influence on the quality. Oil content was positive correlative with temperature and sunshine duration of locations and negative correlative with amount of precipitation. Protein content had the opposite trend. Therefore, oil content was relatively higher in Gongzhuling and Dehui district; protein content was relatively higher in Tonghua and Huadian district; Total content was relatively higher in Gongzhuling and Huadian district.According to the analysis above,6 regions was divided into 3 quality ecology groups: The plain of south central and north central Jilin province and the basin of east were grouped as High-Oil district. The mountain regions of east central and southeast were grouped as High-Protein district. The west arid region was grouped as Low-yield and Low-efficient district.