| 几个粳三系亲本生物学特性观察研究 |
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| 引用本文： | 王德正,金烽.几个粳三系亲本生物学特性观察研究[J].安徽农业科学,1992,20(3):218-223. |
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| 作者姓名： | 王德正 金烽 |
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| 作者单位： | 庐江县种子公司
(王德正，金烽，夏维陆，刘平)，庐江县种子公司(葛从武) |
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| 摘 要： | 对三个粳型杂交水稻亲本皖恢9号、当选晚2号A和80—4A进行了分期播种试验和开花习性观察。结果表明,皖恢9号、当选晚2号A、80—4A的抽穗日数分别为100—106天、91—97天、93—98天,主茎叶片数分别为16±1叶、16±0.5叶、16±0.5叶,80—4A与皖恢9号的花时基本吻合,利于高产制种。当选晚2号A花时明显著落后于皖恢9号,不利于高产制种;气象因子及一些栽培措施对三亲本花时有所影响。本文还提出了当选晚2号A/皖恢9号、80—4A/皖恢9号制种的合理播期安排。
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| 关 键 词： | 粳型杂交水稻 生物学特性 开花习性 制种 |
Observation and study on the Biological Charateristics of Several Three-Line Parents in Japonica Hybrid Rice. |
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| Wang Dezheng,Jin Feng,Xia Weilu,Liuping,Ge Congwu.Observation and study on the Biological Charateristics of Several Three-Line Parents in Japonica Hybrid Rice.[J].Journal of Anhui Agricultural Sciences,1992,20(3):218-223. |
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| Authors: | Wang Dezheng Jin Feng Xia Weilu Liuping Ge Congwu |
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| Abstract: | The Biological characteristics of three parents (Wanhui 9, Dangxuanwan 2A and 80—4A)of japonica hybrid rice were studied with sowing by different seasons in the field. The main results were as follows: (1) The days from seeding to heading of Wanhui 9, Dangxuanwan 2A and 80—4A were 100—106, 91—97 and 93—98days, respectively; the leaves of their main stems were 16±1, 16±0.5 and 16±0.5, respectively. (2) The flowering peak time of 80—4A was indentical to that of Wanhui 9 in great degree 80—4A had advantage of hybrid seed production. (3) The flowering peak time of Dangxuanwan 2A was obviously later than that of Wanhui 9,It would be difficult to apply Dangxuanwan 2A to hybrid seed production. (4) Flowering time of the three parents were affected by meterologic factors and culture measures. (5) It was suggested that arranged suitable seeding date of hybrid seed production to Dangxuanwan 2A/Wanhui 9 and 80—4A/Wanhui 9 in this paper. |
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| Keywords: | Japonica hybrid rice Biological Characteristics Flowering habits Hybrid seed production |
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