| 汕优广12亲本开花习性观察初报 |
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| 引用本文： | 叶创生,季绒倩,刘京美.汕优广12亲本开花习性观察初报[J].广西农业生物科学,1992(1). |
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| 作者姓名： | 叶创生 季绒倩 刘京美 |
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| 作者单位： | 广西农学院教学实验农场，广西农学院教学实验农场，广西农学院教学实验农场 |
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| 摘 要： | 杂交水稻新组合汕优广12的父本广12,花时在9～13时,盛花在10～12时,峰值出现在11时,单株花期长达13天。母本珍汕97A花时分散。制种花时相遇在每天9～13时,集中在11～12时。花时全遇时,结实率早造达45.88％,晚造达43.75％。花时相隔48小时授粉,结实率仍可达20％。这一特征,为制种夺高产提供了生物学依据。
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| 关 键 词： | 杂交稻 汕优广12 亲本 花期 花时 结实率 |
OBSERVATION OF THE FLOWERING HABITS OF THE PARENTS OF SHANYOUGUANG 12 |
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| Ye Chuangsheng Ji Rongqian Liu Jingmei.OBSERVATION OF THE FLOWERING HABITS OF THE PARENTS OF SHANYOUGUANG 12[J].Journal of Guangxi Agricultural and Biological Science,1992(1). |
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| Authors: | Ye Chuangsheng Ji Rongqian Liu Jingmei |
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| Institution: | Teaching and Experiment Farm |
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| Abstract: | The flowering habits of the parents of Shanyouguang 12, i.e. Guang 12, the restorer, and Zhenshan 97A, the sterile line, were observed. The flowering time of Guang 12 ranges from 9:00 a. m. to 13:00 p. m., the blooming period from 10:00 to 12:00 a. m., the peak is at 11:00 a. m. The flowering duration for each plant lasts for 13 days. The flowering time of Zhenshan 97A is diffused. The synchronization of the parents' flowering time happens from 9:00 a. m. to 13: 00 p. m. every day. If the parents' flowering time fully synchronizes, the setting percentage can be 45.88% for early season, 43.75% for late season. A 20% of setting percentage can be recorded even though the flowering time of the parents is 48 hours apart while pollination. |
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| Keywords: | hybrid rice Shanyouguang 12 parent duration of flowering flowering time setting percentage |
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