| 外源甜菜碱对冬小麦抗旱性生理指标的影响研究 |
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| 引用本文： | 杨淑英,张建新.外源甜菜碱对冬小麦抗旱性生理指标的影响研究[J].西北植物学报,2000,20(6):1041-1045. |
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| 作者姓名： | 杨淑英 张建新 |
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| 作者单位： | 西北农林科技大学生命科学学院,陕西杨陵,712100 |
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| 基金项目： | 杨凌示范区专项基金!(98A1 1 ) |
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| 摘 要： | 在３种不同土壤水分条件下，研究外源甜菜碱对返青－拔节期小麦叶片光合作用的影响，结果表明：随着土壤水分下降，喷施２５￣５０ｍｇ／ｋｇ外源甜菜碱对提高光合速率、胞间ＣＯ２浓度、叶面积等生理指标越明显，有效地提高了小麦生物学产量。
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| 关 键 词： | 外源甜菜碱 冬小麦 生理指标 抗旱性 土壤水分e |
| 修稿时间： | 2000-08-10 |
Studies on effect of exogenous betaine on physiological index of drought resistance for winter wheat |
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| YANG Shu-ying,ZHANG Jian-xin,L Jia-long,SHI Rong-li.Studies on effect of exogenous betaine on physiological index of drought resistance for winter wheat[J].Acta Botanica Boreali-Occidentalia Sinica,2000,20(6):1041-1045. |
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| Authors: | YANG Shu-ying ZHANG Jian-xin L Jia-long SHI Rong-li |
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| Institution: | YANG Shu-ying,ZHANG Jian-xin,L(U) Jia-long,SHI Rong-li |
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| Abstract: | Under three kinds of condition of soil moisture,effect of exogenous betaine on photosynthetic of winter wheat levies in the period of Return green Pull joint was studied.The experiment results show that with decreasing of soil moisture,exogenous betaine its concentration is 25~50 mg/L was spouted on leaves of winter wheat was able to improve evidently leaves area,photosynthetic velocity,concentration of CO 2 inter cells and water conduction velocity.So the biological output would be raised.The more the drought is serious,the more the function of betaine is obvious. |
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| Keywords: | exogenous betaine winter wheat physiological in |
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