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Abstract ▼ AI-Helper

For the comparision of the differences in dry matter weight and the chemical composition of soybean seeds in relation to utilization styles and storage durations, the seed coats and cotyledons including embryo axis separated from the seeds of 3 recommended cultivars stored for 3 years and of 5 recom...

For the comparision of the differences in dry matter weight and the chemical composition of soybean seeds in relation to utilization styles and storage durations, the seed coats and cotyledons including embryo axis separated from the seeds of 3 recommended cultivars stored for 3 years and of 5 recommended cultivars and 2 local varieties with black seed coat and green cotyledons were observed in dry weight, germination percentage, protein, oil, soluble sugar, oilgosaccharide, and starch. In the seeds stored for 3 years, dry weight and germination rate were decreased distinctively. This decrease of seed dry matter resulted from the decrease of the cotyledon weight, and the ratio of seed coat to whole seed was increased. For the change of chemical compositions by the decrement of seed dry weight during the storage, protein, oil, and carbohydrate contents of the seed coat were decreased, and protein content of the cotyledon was markedly decreased in the seeds stored for 3 years. The ratio of seed coat to whole seed was higher in small seed than large seed cultivars. In the local varieties, protein and oil contents were 43.59% and 18.25% in the cotyledons, respectively, which were lower than those of recommended cultivars. But starch and sugar contents were 5.70% and 11.58%, respectively, which were higher than those of recommended cultivars. Sucrose, raffinose and stachyose contents were also higher in the cotyledon of the local varieties.

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