江西省近年审定的水稻品种性状分析

目的]对江西省2009～2013年审定的140个水稻品种的产量、品质和抗病性进行分析.方法]将2009 ～2013年通过江西省品种审定委员会审定的品种（不包含审定的不育系）进行综合分析和按年份进行纵向分析,另将品种分为早稻、一季稻、晚稻,常规品种和杂交品种,杂交品种又分为两系和三系杂交品种进行分析.结果]审定品种以三系品种为主,两系品种产量比三系品种略显优势,但优质率却低于三系品种.审定品种产量比对照平均增产3.0％,米质达国标3级优质米以上的品种占52.1％,对稻瘟病基本上均为高感.结论]该研究可为江西省水稻品种的选育、推广和应用提供参考依据.

Traits Analysis of Rice Varieties Approved by Jiangxi Provincial Crop Variety Appraisal Committee in Recent Years

Objective ] The aim was to analyze the yield, quality and disease resistance of 140 rice varieties approved by Jiangxi Province in 2009 -2013. Method] The rice varieties（ not including approved sterile lines） approved by Jiangxi Provincial Crop Variety Appraisal Com- mittee in 2009 -2013 were analyzed comprehensively and used to conduct the vertical analysis according to years, moreover, all rice varieties were respectively divided into early rice, one-season rice and late rice, conventional varieties and hybrid varieties, and the hybrid varieties di- vided into two-line and three-line, to analyze. Result ] The approved rice varieties were mainly three- line hybrid rice, the yield of the two- line hybrid rice varieties was a little higher than that of the three-line hybrid rice varieties, while its premium rate was lower than that of the three-line hybrid rice varieties. The yield of the approved rice varieties was increased 3.0% than that of control, about 52.1% of them met the third class of national rice quality standards, almost of them were highly susceptible to rice blast. Conclusion ] The study provides a refer- ence basis for breeding, promotion and application of Jiangxi provincial rice varieties.