| Physiological Effect of New FA Antitranspirant Application on Winter Wheat at Ear Filling Stage |
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| 作者姓名： | LI Mao-song LI Sen ZHANG Shu-yi CHI Bao-liang |
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| 作者单位： | [1]Institute of Agro-Environment and Sustainable Development Research, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China [2]Dryland Agriculture Research Center, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, P.R.China |
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| 摘 要： | The physiological effect of new FA antitranspirant on winter wheat was studied by field trial. The new FA antitranspirant was sprayed at ear filling stage, using the following concentrations： 0.5, 1.0, 1.5 and 2.0 mL L^-1. The results indicated that new FA antitranspirant increased nitrate reductase activity （NRA）, free proline content, chlorophyll content and water content of leaf, thus drought stress can be mitigated. The new FA antitranspirant increased photosynthesis, enlarged stomatal conductance and reduced transpiration rate, thus led to growth stimulation and water loss reduction. New FA antitranspirant caused an increase of grain yield by 7.2%, under the optimal concentration 1.5 mL L^-1.
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| 关 键 词： | 冬小麦 生理性状 水分流失 FA 种质资源 |
Physiological Effect of New FA Antitranspirant Application on Winter Wheat at Ear Filling Stage |
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| LI Mao-song LI Sen ZHANG Shu-yi CHI Bao-liang.Physiological Effect of New FA Antitranspirant Application on Winter Wheat at Ear Filling Stage[J].Agricultural Sciences in China,2005,4(11):820-825. |
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| Authors: | LI Mao-song LI Sen ZHANG Shu-yi CHI Bao-liang |
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| Abstract: | The physiological effect of new FA antitranspirant on winter wheat was studied by field trial. The new FA antitranspirant was sprayed at ear filling stage, using the following concentrations: 0.5, 1.0, 1.5 and 2.0 mL L-1.The results indicated that new FA antitranspirant increased nitrate reductase activity (NRA), free proline content, chlorophyll content and water content of leaf, thus drought stress can be mitigated. The new FA antitranspirant increased photosynthesis, enlarged stomatal conductance and reduced transpiration rate, thus led to growth stimulation and water loss reduction. New FA antitranspirant caused an increase of grain yield by 7.2%, under the optimal concentration 1.5 mL L-1. |
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| Keywords: | Antitranspirant Winter wheat Physiological effect Drought stress |
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