| 超级杂交稻新组合II优602经济性状及产量研究 |
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| 引用本文： | 况浩池,曾正明,罗俊涛,陈光珍,杨扬.超级杂交稻新组合II优602经济性状及产量研究[J].安徽农业科学,2007(13). |
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| 作者姓名： | 况浩池 曾正明 罗俊涛 陈光珍 杨扬 |
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| 作者单位： | 四川省农业科学院水稻高粱研究所国家水稻改良中心泸州分中心 四川泸州646100 |
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| 摘 要： | 于2002年在四川3个不同生态区对杂交稻II优602在不同栽培密度和不同施氮水平下的经济性状和产量进行了研究。结果表明,在不同生态区,II优602有效穗随着密度和施氮量的增加呈上升的趋势,最高有效穗达250.5~322.5万/hm2;在同一施氮水平下,II优602穗粒数随着密度的增加呈下降的趋势,达159.23~165.08粒;不同生态区,不同密肥处理对II优602结实率、千粒重、稻谷产量的影响差异较大。不同肥力条件下选择适应的栽培措施II优602均可获得高产。
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| 关 键 词： | 杂交稻 II优602 密肥试验 经济性状 产量 |
Studies on Economic Characteristics and Yield of New Combination Iiyou 602 of Super Hybrid Rice under the Condition of Different Ecologic Area and the Density and Fertilizers |
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| KUANG Hao-chi et al.Studies on Economic Characteristics and Yield of New Combination Iiyou 602 of Super Hybrid Rice under the Condition of Different Ecologic Area and the Density and Fertilizers[J].Journal of Anhui Agricultural Sciences,2007(13). |
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| Authors: | KUANG Hao-chi |
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| Abstract: | The economic characteristics and yield of new combination IIyou 602 of super hybrid rice under the different density and N fertilization levels were studied in 3 different ecologic regions in Sichuan province in 2002.Results showed that in the different ecologic areas,the valid panicle number of the IIyou 602 had rise trend along with the density and the N applying amount increment,with the highest valid panicle number of 2 505 000～3 225 000/hm2.Under same N fertilization level,the grain number per panicle of the IIyou 602 had the decease trend along with the increment of the density,with the grain number being 159.23～165.08.In different ecologic regions,the effects of different density and fertilization level on the seed setting rate,1 000-grain weight and yield of IIyou 602 had the bigger difference.Under the different fertility,selection of adaptive cultivation measures all could make IIyou 602 to obtain high yield. |
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| Keywords: | Hybrid rice IIyou 602 Density and fertilizers experiment Economic characteristics Yield |
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