2022年辽宁省水稻中熟组区试铁岭点参试品种的农艺性状与产量的相关分析  

Correlation Analysis of Agronomic Traits and Yield of Rice Varieties Tested at Tieling in Middle Maturity Group of Liaoning Province in 2022

作　　者：李殿平[1] LI Dian-ping(Tieling Academy of Agricultural Sciences,Tieling Liaoning 112616,China)

机构地区：[1]铁岭市农业科学院,辽宁铁岭112616

出　　处：《北方水稻》2024年第2期18-21,28,共5页North Rice

摘　　要：选择2022年辽宁省水稻中熟组区试铁岭点参试的14个品种,通过观测其株高、总粒数、穗长、每穴穗数、结实率、千粒重及产量,采用相关性分析、差异显著性分析等方法研究参试品种的农艺性状与产量的关系。结果表明:每穗总粒数与穗长正相关,每穗总粒数与每穴穗数负相关,产量与千粒重负相关。铁岭地区选择分蘖数适中的每穗总粒数多的大穗小粒品种可能更容易高产,但是也容易出现穗下部二次枝梗籽粒灌浆变差、结实率降低的情况,需要改良水稻种植方法与栽培技术,提高结实率,可以更进一步的提高水稻产量。Fourteen rice varieties tested in Tieling(mid-maturing group regional trial)in 2022 were selected.By observing their plant height,total grains,panicle length,panicle number per hole,seed setting rate,1000-grain weight and yield,the relationship between agronomic characters and yield of the tested varieties was studied by means of correlation analysis and difference significance analysis.The results showed that the total number of grains per panicle was positively correlated with panicle length,the total number of grains per panicle was negatively correlated with panicle number per hole,and the yield was negatively correlated with 1000-grain weight.In Tieling area,selecting varieties with moderate tillers and more total grains per panicle with large panicle and small grains may be easier to produce high yield,but it is also easy to have poor grain filling and lower seed setting rate in secondary branches at the lower panicle.It is necessary to improve rice planting methods and techniques to improve seed setting rate,which can further improve rice yield.

关 键 词：水稻 中熟组区试 农艺性状 产量 相关性分析 

分 类 号：S511.22[农业科学—作物学]