| 不同生育期温光条件对宣城地区水稻生长和产量的影响 |
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| 引用本文： | 孙秀邦,田青,李龙,张民蓓. 不同生育期温光条件对宣城地区水稻生长和产量的影响[J]. 中国农学通报, 2016, 32(27): 1-6. DOI: 10.11924/j.issn.1000-6850.casb16010009 |
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| 作者姓名： | 孙秀邦 田青 李龙 张民蓓 |
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| 作者单位： | 宣城市气象局 安徽宣城 242000,宣城市气象局 安徽宣城 242000,宣城市气象局 安徽宣城 242000,宣城市气象局 安徽宣城 242000 |
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| 基金项目： | 2013年度公益性行业科研专项经费项目“长江中下游地区高产优质一季稻生长气象指标体系研究”(GYHY201306035)。 |
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| 摘 要： | 水稻分期播种是研究温光条件对水稻生长和产量影响，确定最佳播期的便捷途径。本试验以宣城地区水稻品种‘两优6326’、‘南粳44’为研究对象，对不同播期试验下水稻生长情况和产量及产量构成因素进行分析。结果表明：随着播期的推迟，水稻的生育进程也相应顺延，2 种水稻全生育期均缩短。‘两优6326’各阶段籽粒灌浆速率随着播期延迟而逐渐上升，‘南粳44’全生育期灌浆速率在D2 播期最高，其他阶段籽粒灌浆速率随播期延迟反应不一；‘两优6326’的产量及产量构成要素随播期延迟均呈递减趋势，‘南粳44’理论产量以D3 播期最高，D2 播期最低。此外，通过不同阶段积温、日平均气温和日照时数与各阶段灌浆速度、产量及产量构成的相关分析，得出不同温光条件下的影响结论。
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| 关 键 词： | 退耕地 退耕地 物种多样性 生物学特征 相关性分析 |
| 收稿时间： | 2016-01-04 |
| 修稿时间： | 2016-01-24 |
Influence of Temperature and Sunlight Conditions On Rice growth and Yield in Diflferent Growth Stages |
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| Abstract: | sowing and transplanting on different dates is a convenient way to study rice growth, yield components and optimal sowing date. Effect of sowing date on rice growth and yield components were analysed by sowing and transplanting on different dates in this study． The research were carried out in two rice types,named Liangyou6326,Nangeng44. results show that along with sowing date postponing,whole growth period of these two kinds of rice were shortened. grain filling rate of Liangyou6326 improved as sowing date postponing, while grain filling rate of Nangeng44 in Full growth period greatly improved in D2 date of seeding, and in other stages shows different situation. yield and yield components cut down along with sowing date postponing, but the highest theoretical yield of Nangeng44 appeared in D3 date of seeding, The lowest theoretical yield of Nangeng44 appeared in D2. In addition, through the correlation analysis between the different stages of accumulated temperature, daily mean temperature , sunshine duration number and each stage of grain filling rate, yield and yield, the effects under different temperature and light conditions was concluded. |
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| Keywords: | rice temperature and sunlight condition growth and development grain filling rate yield |
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