| 高温胁迫对早稻不同品种灌浆结实和稻米品质的影响 |
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| 引用本文： | 李木英,熊伟,石庆华,胡志红,潘晓华,谭雪明.高温胁迫对早稻不同品种灌浆结实和稻米品质的影响[J].江西农业大学学报,2006,28(4):483-487. |
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| 作者姓名： | 李木英 熊伟 石庆华 胡志红 潘晓华 谭雪明 |
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| 作者单位： | 1. 江西农业大学,农学院,江西省作物生理生态与遗传育种重点实验室,江西,南昌,330045
2. 江西省种子公司,江西,南昌,330046 |
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| 基金项目： | 国家自然科学基金;江西省教育厅科研项目 |
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| 摘 要： | 选用不同耐热品种,研究高温胁迫后籽粒灌浆的差异。结果表明,高温影响灌浆物质积累主要在2个阶段,一是高温胁迫阶段,此阶段灌浆速率增大,是导致垩白增大的主要因素;二是解除胁迫后,灌浆速率明显下降、灌浆持续时间缩短,导致籽粒充实度下降、粒重降低而影响产量。082和农大288受高温胁迫影响的幅度小于协青早B和茉莉占。
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| 关 键 词： | 早稻 高温胁迫 灌浆特征 稻米品质 |
| 文章编号： | 1000-2286（2006）04-0483-05 |
| 收稿时间： | 2006-04-11 |
| 修稿时间： | 2006年4月11日 |
Effect of High Temperature Stress on Endosperm Filling and Grain Quality of Early Rice Varieties |
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| LI Mu-ying,XIONG Wei,SHI Qing-hua,HU Zhi-hong,PANG Xiao-hua,TAN Xue-ming.Effect of High Temperature Stress on Endosperm Filling and Grain Quality of Early Rice Varieties[J].Acta Agriculturae Universitis Jiangxiensis,2006,28(4):483-487. |
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| Authors: | LI Mu-ying XIONG Wei SHI Qing-hua HU Zhi-hong PANG Xiao-hua TAN Xue-ming |
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| Institution: | 1. College of Agronomy, JAU, Key Laboratory of Crop Physiology, Ecology and Genetic Breeding of Jiangxi Province, Nanchang 330045, China ;2. Seed Company of Jiangxi Province, Nanchang 330046, China |
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| Abstract: | Varieties of early rice with different heat resistance were studied to determine the difference caused by high temperature stress on grain filling.The results indicated that high temperature stress impacts on the accumulation of filling materials mostly in two phases.The first is during the period of the stress.In this phase,the filling velocity was expedited,which was the major factor leading to chalkiness increase.The second was after the period of the stress.The filling velocity was declined and the filling duration was shortened,which resulted in reduced yield with low grain plumpness and weight.The effect of high temperature stress on 082 and Nongda 228 was lower than on Xieqingzao B and Molizhan. |
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| Keywords: | early season rice high temperature stress filling character rice quality |
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