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《Journal of Anhui Agricultural Sciences》 2009-17
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Study on New Varieties(Lines) of Japonica Rice with Large Spike

XU Jiu-wen et al(Jiaozuo Insititute of Agricultural Science,Jiaozuo, Henan 454000)  
[Objective] The study was to provide the reference for generation of new japonica varieties with high yield.[Method] With Yujing 6 as CK,new japonica varieties with large spike(Xinxuan 1,Puging 2,3 You 32, 2 Youyu 101,X65003,Zhengdao 05094,Zhengxuan 3,Xinjingyou 1,Jiaozajing 1 and Jindao 1008) were taken for variety test,the yield and yield components of each variety was analyzed.[Result] Among the tested varieties,the yields of 8 varieties were higher than that of CK and their increasing in yield was 1.4%-11.2%.The yields of 6 varieties were above 5% higher than that of CK,that were Zhengdao 05094(increasing by 11.2%),Jiaozajing 1(increasing by 10.3%),Xinjingyou 1(increasing by 9.9%),X65003(increasing by 8.8%),Youyu 101(increasing by 8.7%),Xixuan 1(increasing by 6.3%).Further analysis indicated that the main reason of high yielding of japonica variety was the increasing of plant height,growth vigor,spike length,total grain number and filled grains number per spike.[Conclusion] Some tested varieties could be generated and planted in Huanghuai rice region in large scale replaced Yujing 6.
【CateGory Index】: S511.22
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