| 不同早稻品种直播栽培的生育特性研究 |
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| 引用本文： | 李木英,陈关,石庆华,潘晓华,谭雪明.不同早稻品种直播栽培的生育特性研究[J].江西农业大学学报,2011,33(3). |
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| 作者姓名： | 李木英 陈关 石庆华 潘晓华 谭雪明 |
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| 作者单位： | 江西农业大学农学院/作物生理生态与遗传育种教育部重点实验室/农业部双季稻生理生态与栽培重点实验室,江西南昌,330045 |
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| 基金项目： | 江西省科技厅“江西省重大战略产品科技创新项目”(2008AB00800); 科技支撑计划项目(2009BNA03700) |
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| 摘 要： | 选用6个早稻品种(组合),探讨直播栽培方式下的生育特性。结果表明,杂交稻产量为7 833～8 100 kg/hm2,差异不显著;常规稻嘉育948产量7 344 kg/hm2,杂交稻组合与嘉育948产量差异显著。杂交稻组合表现了不同的产量形成特性。产量水平相同的陆两优996和禾盛两优25,陆两优996穗大、粒重,而禾盛两优25穗多、粒轻。陆两优996和嘉育948的分蘖力相对较弱,成穗率较高。春光1号和株两优819分蘖力强,穗小;春光1号表现分蘖期较长,株两优819分蘖期短而集中。禾盛两优25生育前期发育快、干物质积累量较高。嘉育948、株两优30和春光1号前期发育慢、干物质积累量较低。不同品种直播栽培表现了不同的生育特性,因而直播栽培策略需因品种而异。在促进分蘖早发的同时严格控制过多分蘖、促进有效分蘖的干物质积累是高产的关键。
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| 关 键 词： | 早稻 不同品种 直播 生育特性 |
A Study on the Growth Characteristics of Different Varieties of Early Rice as the Direct-seeded Plant |
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| LI Mu-ying,CHEN Guan,SHI Qing-hua,PAN Xiao-hua,TAN Xue-ming.A Study on the Growth Characteristics of Different Varieties of Early Rice as the Direct-seeded Plant[J].Acta Agriculturae Universitis Jiangxiensis,2011,33(3). |
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| Authors: | LI Mu-ying CHEN Guan SHI Qing-hua PAN Xiao-hua TAN Xue-ming |
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| Institution: | LI Mu-ying,CHEN Guan,SHI Qing-hua,PAN Xiao-hua,TAN Xue-ming (College of Agronomy,JAU / Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Ministry of Education/ Key Laboratory of Physiology,Ecology and Cultivation of Double Cropping Rice,Ministry of Agriculture,Nanchang 330045,China) |
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| Abstract: | Six varieties(combinations) of early season rice were studied for growth characteristics as direct-seeded rice.The result showed that the grain yield of the hybrid rice combination was 7 833-8 100 kg/hm2 and within non-significant difference.The grain yield of Jiayu948 of general rice variety was 7 344 kg/hm2.The grain yields of hybrid rice combinations and Jiayu948 had significant difference(P<0.05).The characteristics of yield form were exhibited differently in the hybrid rice combinations.The yields of L... |
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| Keywords: | early rice different variety direct-seeded growth characteristic |
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