EFFECT OF POD REMOVAL ON DINITROGEN FIXATION OF SOYBEAN PLANTS DIFFERING IN GROWTH HABIT

概要

論文の詳細を見る
Eight cultivated soybean varieties (Glycine max L. Merr.) and one wild soybean variety (Glycine soja Sieb. and Zucc.) differing in their growth habit, i.e. determinate and indeterminate types were grown in the field. The effects of pod removal on the dry matter production, N accumulation and dinitrogen-fixing activity in the nodules were examined. In all the determinate types, pod removal decreased the dry weight and N content in the whole plant and resulted in a decrease of dinitrogen-fixing activity of all the indeterminate types, mainly due to increase in the N content of the stems plus petioles in the Lee and Harosoy plants and to the increase in the dry weight of the stems plus petioles in other indeterminate types. The relative ureide content ((ureide-N/total-N)×100) of all the plant parts in the determinate types increased by pod removal, whereas that of plant parts except nodules in the indeterminate types decreased. These results suggest that in the determinate types, the ureide utilization rate in the depodded plants decreased more than the ureide synthesis rate in the nodules by pod removal, whereas the reverse trend was observed in the indeterminate types. From these results, it is concluded that the differences in the responses of dinitrogen-fixing activity in the nodules to pod removal among soybean types can be ascribed to differences in growth habit. These differences mainly depend upon the differences in the ability of stems plus petioles to utilize the ureides.
社団法人日本土壌肥料学会の論文

EFFECT OF POD REMOVAL ON DINITROGEN FIXATION OF SOYBEAN PLANTS DIFFERING IN GROWTH HABIT

スポンサーリンク

概要

著者

関連論文

スポンサーリンク