| 橡胶树硝酸还原酶活性及其对稀土微肥的反应 |
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| 引用本文： | 董建华,王秉忠.橡胶树硝酸还原酶活性及其对稀土微肥的反应[J].热带作物学报,1994,15(1):17-27. |
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| 作者姓名： | 董建华 王秉忠 |
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| 作者单位： | 华南热带作物学院热带作物生物学实验室 |
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| 摘 要： |
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| 关 键 词： | 橡胶树 硝态氮 硝酸还原酶活性 稀土微肥 |
NITRATE REDUCTASE ACTIVITY IN HEVEA BRASILIENSIS AND ITS RESPONSE TO RARE EARTH FERTILIZATION |
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| Dong Jianhua,Wang Bingzhong.NITRATE REDUCTASE ACTIVITY IN HEVEA BRASILIENSIS AND ITS RESPONSE TO RARE EARTH FERTILIZATION[J].Chinese Journal of Tropical Crops,1994,15(1):17-27. |
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| Authors: | Dong Jianhua Wang Bingzhong |
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| Abstract: | Nitrate nitrogen uptaken by Hevea plants through roots was reduced mainly in roots and not transported upward to the shoots. Nitrate nitrogen and nitrate reductase activity(NRA)were generally not observed in the leaves and stems.Nitrate nitrogen could be absorbed independently by detached Hevea roots, stems(including barks),leaves and the NRA could be induced.NRA was higher in petioles and barks and lower in leaves and roots when induced separately with an equal concentration of nitrate nitrogen.NRA in Hevea also could be induced by ammonium nitiogen, and the ammonium nitrogen and nitrate nitrogen had a synergic effect on NRA induction.Application of rare earth to attached or detached leaves and sttm barks could also induce NRA. Adding rare earth molybdemun to ccmplete nutrient solution could increase NRA in roots of Hevea seedlings. |
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| Keywords: | Hevea brasiliensis nitrate nitrogen ammonium nitrcgen rare earth nitrate reductase activity |
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