| 低温冷害影响水稻结实率的要因分析 |
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| 引用本文： | 叶昌荣,戴陆园,王建军,曾亚文,余腾琼.低温冷害影响水稻结实率的要因分析[J].西南农业大学学报,2000,22(4):307-309. |
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| 作者姓名： | 叶昌荣 戴陆园 王建军 曾亚文 余腾琼 |
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| 作者单位： | 云南省农业科学院农作物品种资源站,云南昆明 |
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| 基金项目： | 云南省攻关项目(95-15) |
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| 摘 要： | 通过对１０个水稻品种的花顺性状与结实率的分析，表明水稻孕穗期４受低温冷害后，花药缩小，花药内可育花粉数减少，不育花粉数增多，结实率下降，其中花药内的可育花粉数对水稻的结实率起着决定性的作用。提出了水稻耐冷性育种的对策。
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| 关 键 词： | 花药 花粉 结实率 耐冷性 水稻 低温 冷害 |
| 文章编号： | 1000-2642(2000)04-0307-03 |
| 修稿时间： | 1999-12-09 |
ANALYSIS OF THE MAJOR FACTORS AFFECTING THE FERTILITY OF RICE AT LOW TEMPERATURE |
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| YE Chang-rong
,DAI Lu-yuan
,WANG Jian-jun
,ZEBG Ya-wen
,YU Teng-qiong.ANALYSIS OF THE MAJOR FACTORS AFFECTING THE FERTILITY OF RICE AT LOW TEMPERATURE[J].Journal of Southwest Agricultural University,2000,22(4):307-309. |
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| Authors: | YE Chang-rong DAI Lu-yuan WANG Jian-jun ZEBG Ya-wen YU Teng-qiong |
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| Institution: | YE Chang-rong
,DAI Lu-yuan
,WANG Jian-jun
,ZEBG Ya-wen
,YU Teng-qiong
;(Crop Germplasm Reseamh Institute, Yunnan Academy of Agricultural Sciences, Ktmming 650205,China) |
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| Abstract: | The properties of the floral organs of 10 cultivars of Oryza sativa L. and their seed-setting were investigated in Yunnan. The results indicated that anther size and fertile pollen number decreased, sterile pollen increased and fertihty rate dechned in low temperature treatments. Fertile pollen number in the anthers was considered to be the critical factor affecting the fertility of rice. Some measures for rice breeding against cold injury are offered. |
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| Keywords: | anther pollen seed-setting cold tolerance rice |
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