| 播期对洛麦21生长发育的影响 |
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| 引用本文： | 张学品,冯伟森,余四平,马飞,温红霞,段国辉,杨洪强. 播期对洛麦21生长发育的影响[J]. 江西农业学报, 2010, 22(2): 4-7 |
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| 作者姓名： | 张学品 冯伟森 余四平 马飞 温红霞 段国辉 杨洪强 |
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| 作者单位： | 河南省洛阳市农业科学研究院,河南,洛阳,471023 |
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| 基金项目： | 国家“863”计划子课题(2006AA100201);;洛麦21河南省农业科技成果转化资金项目(072201110008) |
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| 摘 要： | 对洛麦21的生育规律进行了研究。结果表明:洛麦21的幼穗分化总体表现为前期慢、后期快,随着播期的推迟,幼穗分化的时间缩短。平均灌浆速率在1.453~1.697之间,在10月4日播种下平均灌浆速率最大,灌浆时间35~38 d,千粒重稳定在45 g以上。针对灌浆速率而言,以10月上旬适期播种对洛麦21最为有利。洛麦21主要依靠主茎和第1、2个一级分蘖成穗。随着播期的推迟,洛麦21的总分蘖数明显降低,成穗率提高。以10月14日播种的产量最高。
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| 关 键 词： | 洛麦21 播期 幼穗分化 分蘖成穗 灌浆特性 |
Impact of Sowing Date on Growth and Development of Luomai 21 |
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| ZHANG Xue-pin,FENG Wei-sen,YU Si-ping,MA Fei,WEN Hong-xia,DUAN Guo-hui,YANG Hong-qiang. Impact of Sowing Date on Growth and Development of Luomai 21[J]. Acta Agriculturae Jiangxi, 2010, 22(2): 4-7 |
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| Authors: | ZHANG Xue-pin FENG Wei-sen YU Si-ping MA Fei WEN Hong-xia DUAN Guo-hui YANG Hong-qiang |
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| Affiliation: | Luoyang Academy of Agricultural Sciences in Henan Province/a>;Luoyang 471023/a>;China |
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| Abstract: | The growth and developmental laws of Luomai 21 were studied,the results showed that the differentiation of young spikelet generally revealed slow trend at prophase and fast trend at anaphase;along with the delaying of sowing date,the duration of young spikelet differentiation shortened.The average rate of filling was between 1.453 and 1.697;when Luomai 21 was sown on October 4th,the average filling rate was the highest,the filling duration was 35~38 days,and the 1000-kernel weight was more than 45 g.Aiming ... |
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| Keywords: | Luomai 21 Sowing date Differentiation of young spikelet Panicle formation from tiller Characteristics of filling |
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