杂交水稻2026，Vol.41Issue(3)：80-85,6.DOI:10.16267/j.cnki.1005-3956.20241030.237
留桩高度对再生稻丰两优香1号再生季生长发育、产量和品质的影响
Effects of Stubble Heights on the Growth and Development,Yield,and Grain Quality of Fengliangyou Xiang 1 during the Ratoon Season
摘要
Abstract
To determine the suitable stubble height of hybrid rice Fengliangyou Xiang 1 planted as ratoon rice in Tianmen City of Hubei Province,this study designed seven stubble height treatments ranging from 30 to 60 cm and compared the growth period,plant height,tiller number,regeneration ability of axillary buds,yield,yield components,and grain quality among treatments.The results showed that with the increase in stubble height(ranging from 30 to 60 cm),Fengliangyou Xiang 1 generally exhibited shortened growth period and increased plant height,tiller number,and regeneration ability of axillary buds during the ratoon season.The yield was the highest(4 870.66 kg/hm2)in the treatment with 50 cm stubble height during the ratoon season.The panicle length,total grain number per panicle,andfilled grain number per panicle showed an overall decreasing trend,while the effective panicle number and seed setting rate showed an overall increasing trend during the ratoon season.The grain processing quality(brown rice rate,milled rice rate,and head rice rate)generally improved,while the grain appearance quality(chalky grain rate and chalkiness degree)generally deteriorated during the ratoon season.Considering the factors such as the yield,growth period,and grain quality,the suitable stubble height of Fengliangyou Xiang 1 was 50 cm under the experimental conditions during the ratoon season.关键词
再生稻/丰两优香1号/留桩高度/生育期/产量/品质Key words
ratoon rice/Fengliangyou Xiang 1/stubble height/growth period/yield/grain quality分类
农业科技引用本文复制引用
熊路,陈传安,肖森,袁高华,王齐娥,但弘,汪友元,杨学兵,雷志祥..留桩高度对再生稻丰两优香1号再生季生长发育、产量和品质的影响[J].杂交水稻,2026,41(3):80-85,6.基金项目
天门市2019年部级水稻绿色高质高效行动项目(鄂农计发[2019]16号) （鄂农计发[2019]16号）
