种子2025，Vol.44Issue(1)：1-9,9.DOI:10.16590/j.cnki.1001-4705.2025.01.001
水稻恢复系R382系列杂交组合抗倒伏性评价与分析
Evaluation and Analysis on Lodging Resistance of Hybrid Combinations of Rice Restorer Line R382
摘要
Abstract
In order to investigate the lodging resistance of rice(Oryza sativa L.)restorer line R382,this study compared the stem morphological characteristics,lodging resistance and yield traits of R382,Huazan and 5 sterile lines,respectively.The results showed that in most cases,compared with Huazhan combination,R382 combined with the same parent,the outer diameter of the base N1 and N2 nodes containing leaf sheath significantly increased,the stem wall was thicker,the bending force was stronger,and the bending moment was significantly larger.Except for the combination with Zhuo234S as the maternal parent,the N1 internode lodging index decreased by 16.8％to 33.8％when the other 4 maternal parents were paired with R382,indicating that the basal stalk lodging resistance of the R382 series combination was stronger than that of the Huazhan series combination.The results of correlation analysis showed that the lodging index of the tested materials in this study was mainly affected by plant height and internode folding resistance of stem base.The output of Xinxiang S/R382 was the same as that of Xinxiang S/Huazhan,Tang918S/R382 was the same as that of Tang918S/Huazhan,The yield per plant of Zhan998S/R382 was 16.8％higher than that of Zhan998S/Huazhan.The series combination formulated with R382 had excellent basal stalk lodging resistance,especially Zhan998S/R382 had the dual advantages of fall resistance and high yield.关键词
杂交水稻/抗倒伏/茎秆强度/产量Key words
hybrid rice/lodging resistance/stem strength/yield分类
农业科技引用本文复制引用
宋锦,刘小壹,卢学丹..水稻恢复系R382系列杂交组合抗倒伏性评价与分析[J].种子,2025,44(1):1-9,9.基金项目
国家自然科学基金项目(32100257) （32100257）
湖南省科技创新计划种业创新项目(2021NK1011) （2021NK1011）
