Varietal differences of free sugar, protein and oil contents on hereditary factors in Japanese soybeans
2004
Taira, H. | Matsukawa, I. | Fujisaki, M. | Simotsukasa, S. | Uda, K.
To identify the effect of variety, stage of maturity and hereditary factors of maternal and paternal lines on free type of total sugar, free sugars i.e. sucrose, raffinose and stachyose, protein and oil contents and 100 seed weight in Japanese soybeans, 104 samples of 95 varieties and lines cultivated in 6 Agricultural Experiment Stations from the North to the South in 1992 were analyzed. The values of range, average, and coefficient of variation were as similar as those of our previous paper. On the medium and late maturing varieties compared with early varieties, significant high free type of total sugar and sucrose and low oil contents were observed. Free type of total sugar and sucrose contents were negatively correlated with oil content. The group of late maturing variety in the Hokkaido (northern area) and Nagano (central area) Stations was high in free type of total sugar content and low in oil content. The high free type of total sugar and sucrose and low oil contents were characteristic of medium and late maturing varieties in the Hokkaido Station. In regard to influence of maternal and paternal lines on hybrid variety, no correlation was observed in free sugars except raffinose content, whereas, positive correlation in protein and oil contents and 100 seed weight. Sucrose content was influenced by maturity on variety, but not by maternal and paternal lines. As for genetic interaction on sucrose content, hybrid varieties were not influenced by maternal and paternal plants.
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