Effects of boron on nodule development and symbiotic nitrogen fixation in soybean plants
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説明
Abstract Effects of boron (B) on soybean growth, nodule development, and nitrogen fixation were studied. When soybean plants were grown in B-free medium for 35,40, or 72 d, B deficiency symptoms appeared. Nodules of B-deficient soybeans were damaged and showed low acetylene reduction activities. Soybean seed production was seriously depressed. Production of whole plant, nodules and pods was maximum at concentrations of 15–180 μg B L-1 (1.4–16 μm). At concentrations of 29–88 μg B L-1 nitrogen fixation on a plant and nodule weight basis was markedly enhanced. Element absorption into soybean plants grown without boron and at 22, 44, 440, and 1,300 p.g B L-1 was examined. At 22–44 μg B L-1, the total amount of K, Ca, and Mg absorbed into soybean plants was relatively high, although the concentrations of these elements on a dry weight basis were almost the same. Boron concentration in the whole soybean plant increased when the amount of B in the culture media increased. The B exogenously supplied accumulated i...
収録刊行物
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- Soil Science and Plant Nutrition
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Soil Science and Plant Nutrition 40 (2), 265-274, 1994-06
Informa UK Limited
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詳細情報 詳細情報について
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- CRID
- 1360284920380509440
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- NII論文ID
- 110001720205
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- NII書誌ID
- AA00844314
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- ISSN
- 17470765
- 00380768
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- データソース種別
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