| 杂交中稻结实率与开花期气候条件关系及其耐高温组合的库源特征 |
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| 引用本文： | 徐富贤,周兴兵,张林,蒋鹏,熊洪,郭晓艺,朱永川,刘茂.杂交中稻结实率与开花期气候条件关系及其耐高温组合的库源特征[J].中国稻米,2019(1):34-39,43. |
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| 作者姓名： | 徐富贤 周兴兵 张林 蒋鹏 熊洪 郭晓艺 朱永川 刘茂 |
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| 作者单位： | 四川省农业科学院水稻高粱研究所/农业部西南水稻生物学与遗传育种重点实验室 |
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| 基金项目： | 国家现代农业产业技术体系建设专项(CARS-01-25);国家粮食丰产增效科技创新专项(2017YFD0300409-3);四川省财政基因工程项目 |
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| 摘 要： | 以30个大面积推广的杂交中稻组合为材料,在大田条件下通过分期播种,研究了杂交中稻结实率与开花期气候条件的关系及耐高温组合的库源特征。结果表明,抽穗期间的日最低气温、最低相对湿度、日降雨量、日照时数相对较低,最高苗数少,LAI和粒叶比较高,是导致结实率下降的重要原因。日降雨量少是导致日最高气温较高的直接因素,因此高温是引起结实率下降的根本原因。抽穗期耐热系数分别与最高苗数、有效穗数呈显著正相关,与穗粒数和粒叶比呈显著负相关,分蘖力强的穗数型组合抽穗期耐高温能力较强。川香858、泰优99、香绿优727、绵5优5240、内香2550、川谷优202可作为高温伏旱区的推荐品种。
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| 关 键 词： | 杂交中稻 耐热系数 气候条件 库源特征 |
Relationship Between the Seed Setting Rate and Climatic Conditions at Flowering Stage and Sink-Source Characteristics of the Mid-season Hybrid Rice with High Temperature Resistant |
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| XU Fuxian,ZHOU Xingbing,ZHANG Lin,JIANG Peng,XIONG Hong,GUO Xiaoyi,ZHU Yongchuan,LIU Mao.Relationship Between the Seed Setting Rate and Climatic Conditions at Flowering Stage and Sink-Source Characteristics of the Mid-season Hybrid Rice with High Temperature Resistant[J].China Rice,2019(1):34-39,43. |
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| Authors: | XU Fuxian ZHOU Xingbing ZHANG Lin JIANG Peng XIONG Hong GUO Xiaoyi ZHU Yongchuan LIU Mao |
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| Institution: | (Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences/Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture, Deyang, Sichuan 618000, China) |
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| Abstract: | XU Fuxian;ZHOU Xingbing;ZHANG Lin;JIANG Peng;XIONG Hong;GUO Xiaoyi;ZHU Yongchuan;LIU Mao(Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences/Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture, Deyang, Sichuan 618000, China) |
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| Keywords: | mid-season hybrid rice heat resistant coefficient climatic condition sink-source characteristics |
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