Ecology Difference And Quality Regionatization Of Protein And Oil Content Of Soybean In Dongbei Region

In this research, 5 spring soybean varieties of northeast China which have different quality characters were planted in 13 representative locations in northeast China.The regulation of soybean quality traits responsed to the ecology condition was studied and the regionalization of quality ecology was discussed in this experiment. The results are as following:1. Effect of different varieties to quality of soybeanThe study indicated that quality traits were different among the varieties. The variation in different quality traits of the same variety is different; the stability of the same trait in different variety is different; the genetic variation of soybean chemical quality is more than the environment variation. So the variety selection is more important than the selection of location when considering the production of high quality soybean.2. Effect of ecology to quality of soybeanThe study showed that chemical quality traits in different locations have difference, the different content in different traits is different; in the three provinces of Dongbei protein content is negative correlatived with latitude, oil content is negative correlatived with latitude, total content of protein and oil is negative correlatived with latitude; total content of protein and oil in seeds is negative correlatived with content of instant K in soil significantly; oil content is positive correlatived with sunlight hour of vegetative phase; the total content of protein and oil is negative correlatived with vegetative phase significantly,quality traits are correlatived insignificantly with other ecology factors.3. The ecology regionalization of soybean quality in Dongbei regionAccording to the relationship among variation of the soybean quality, quality and situation of environment, and geography distribution of chemical quality, type and component of fertilizer of soil,Derive five rules to district the three provinces of Dongbei in ecology regions of protein and oil:(l) The relationship among variation of the soybean quality;(2) Thegeography distribution of chemical quality;(3) Quality and situation of environment;(4) Type and component of fertilizer of soil;(5) The condition of climiate.The balance region of protein and oil content in northeast; the high content of proteindistrict; high content of oil district around Qiqihar; both high content of protein and oil region in the westCandidate: Zhang DayongSpecialty: Crop Genetics and BreedingSupervisor: Prof.Yang Qingkai...