| 不同播期对玉米品种桂单589产量及性状的影响 |
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| 引用本文： | 覃永嫒,时成俏,王兵伟,黄安霞,秦洪波.不同播期对玉米品种桂单589产量及性状的影响[J].安徽农业科学,2012(30):14676-14677,14683. |
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| 作者姓名： | 覃永嫒 时成俏 王兵伟 黄安霞 秦洪波 |
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| 作者单位： | 广西农业科学院玉米研究所 |
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| 基金项目： | 广西科技计划项目(桂科攻10100004-5B);南宁市科技项目(201102040B) |
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| 摘 要： | 目的]明确玉米品种桂单589的适时播期,为高产栽培提供依据。方法]试验设置春季6个播期,秋季4个播期,研究不同播期对桂单589生育进程、植株性状、产量性状的影响。结果]桂单589在春季播种,随着播期的推迟,桂单589播种～出苗时间及生育期缩短,产量逐渐下降;在秋季播种,桂单589生育期随着播期的推迟,出苗期和生育期延长,产量先升后降。在2月中旬～3月中旬,8月上旬～中旬播种,桂单589植株性状、果穗性状及结实性好,产量较高;春季在2初播种,容易遇低温,影响出苗,在3月下旬以后播种生育期明显缩短,散粉期及灌浆期容易遭到高温干旱,秋季9月份后播种,由于后期低温,玉米难以成熟,产量低,影响收获。结论]桂单589在南宁地区露地大田直播栽培宜安排在2月中旬～3月中旬、8月上旬～中旬播种,在这个时段内播种容易避开或减少季节性自然灾害,能获得较高的产量。
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| 关 键 词： | 玉米 桂单 播期 农艺性状 |
The Effect of Different Sowing Dates on Yield and Characters of Guidan589 |
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| Institution: | QIN Yong-ai et al(Maize Research Institute,Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530227) |
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| Abstract: | Objective] The aim was to definitude the suitable sowing date of Guidan589,which will provide basis for high-yield cultivation.Method] There are six sowing date in spring,four sowing date in autumn,The influences of different sowing dates on growth period,yield and yield-related traits of Guidan589 were studied through the field experiment.Result] Sowing in spring with the sowing date was postponed,the time of sowing date to seeding date and the whole growth period shortens,yield reduce gradually,sowing in autumn,with the sowing date was postponed,the sowing date to seeding date and the whole growth period lengthens,yield increase at first,then reduce,in a short,sowing in Feb.15th-Mar.15th and Aug.1th-15th can acquire high-yield of Guidan589,yield-related traits are better,sowing before Feb.can meet low temperature easily,seeding was effected,sowing after in late Mar.,the whole growth period become shorten obviously,sowing after Sept.due to the low temperature,maize become maturity are difficult,harvest yield is low.Conclusion] The suitable spring sowing date was Feb.15th to Mar.15th,and the optimal autumn sowing date was between Jul.20th and Aug.15th.These sowing dates can avoid or reduce the seasonal natural disasters and enhance the yield. |
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| Keywords: | Maize Guidan589 Sowing date Agronomic traits |
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