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《China Rice》 2017-01
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Correlation and Path Analysis of Yield and Quality Traits of Rice Combinations from Huaxiang A

WANG Ping;BAI Yulu;WANG Minxia;PU Zhigang;ZHANG Zhiyong;XIANG Yuewu;LI Lu;FANG Chunyan;ZHANG Zhixiong;Institute of Biotechnology and Nuclear Technology,Sichuan Academy of Agricultural Sciences;Sichuan Academy of Agricultural Sciences;Agricultural Bureau of Pengxi;  
By analyzing the data collected from 10 hybrid rice from Huaxiang A for rice regional test with the coefficient of the correction and path analysis,the results indicated that there exist significant positive correlation between daily production and effective pan-icle number,plant height and panicle length,grain number per panicle and filled grain number of per panicle,respectively.And the contribution of daily production to grain yield is the largest,next for effective panicle number.The head rice rate and chalky rice rate,length/width ratio and chalky rice rate,length/width ratio and chalkiness degree are significant negative correlation.Accordingly,we can increase the yield of hybrid rice from Huaxiang A by improving the daily production and the number of effective panicle,extending the growth period,reducing the plant height and panicle length properly.And in order to improve the grain quality,we should reduce the length/width ratio moderately,so as to improve the grain filling efficiency,reduce the chalky rice rate and chalkiness degree,and improve the head rice rate.
【Fund】: 四川省财政创新能力提升工程专项(2016ZYPZ01-001);; 四川省财政育种攻关项目;; “十三五”国家重点研发计划专项
【CateGory Index】: S511
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