| 玉米轮回选择群体的ASI增益 |
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| 引用本文： | 吴子恺 Gomez.,A.玉米轮回选择群体的ASI增益[J].作物学报,1996,22(4):458-464. |
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| 作者姓名： | 吴子恺 Gomez. A |
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| 作者单位： | 广西农业大学农学系，广西南宁，530005 |
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| 摘 要： | 利用两个群体各二个轮回选择周期的材料，研究了ＡＳＩ在盖膜与露地以及直播与移栽条件下的反应。结果表明：１．为缩短ＡＳＩ而实行的轮回选择，可获得显著的选择增益；２．在缩短ＡＳＩ的同时，散粉期和抽丝期也相应缩短，并且抽丝期缩短更多；３．无论在灌水还是在不分胁迫条件下，直播株的ＡＳＩ总是极显著地比移栽株短；４．各轮回选择群体的ＡＳＩ，灌水的都比实行干旱胁迫的缩短。
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| 关 键 词： | 玉米 耐旱性 ASI 轮回选择 育种 |
| 收稿时间： | 1994-08-16 |
| 修稿时间： | 1995-05-12 |
Gain of Recurrent Selection for ASI in Maize Populations |
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| Wu Zikai,Antonio Gomez,Alejandro H. Piccone.Gain of Recurrent Selection for ASI in Maize Populations[J].Acta Agronomica Sinica,1996,22(4):458-464. |
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| Authors: | Wu Zikai Antonio Gomez Alejandro H Piccone |
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| Institution: | Department of Agronomy,Guangxi Agricultural University,Nanning,530005 |
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| Abstract: | The gain via 2 cycles of recurrent selection for ASI (anthesis-silking interval )in two maize populations was investigated under conditions with or without plastic cover and direct seeding or transplanting. The results show that: a) significant gain for shortening ASI can be obtained by recurrent selection; b) the number of days to anthesis and to silking are reduced but more reduction in the days to silking; c) the ASI in direct seeding is always shorter than that in transplanting whether the soil moisture stress was imposed or not; d) the ASI under irrigation is always shorther than that under stress of drought. |
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| Keywords: | Corn Drought tolerance AST |
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