植物遗传资源学报2025，Vol.26Issue(4)：646-655,10.DOI:10.13430/j.cnki.jpgr.20240816003
第三次湖南省水稻普查收集种质资源鉴定评价
Identification and Evaluation of Germplasm Resources Collected in the Third Rice General Survey of Hunan Province
摘要
Abstract
The main agronomic traits and disease resistance of 225 rice germplasm resources collected during'The Third General Survey and Collection Action of Crop Germplasm Resources in Hunan Province'project(hereinafter referred to as'Hunan Province Third Census')were identified and evaluated.This collection predominantly comprised indica subspecies accounting for 94.2％,and exhibited nearly equal proportions of sticky rice(53.8％)and waxy rice(46.2％)accessions.The remarkable diversity on seed color,including white,black,red,purple,green and brown,with 41 accessions exhibiting pigmented rice traits,were observed.Their genetic variations are abundant,with coefficients of variation ranging from 6.47％to 52.54％.Most accessions showed favorable agronomic characteristics,including lodging resistance,moderate stem angle,erect flag leaf,yellow glume tip,yellow glume color,awnless and medium-long grain shape.Fourteen accessions were identified with optimal growth duration ranging from 110 to 130 days,suitable plant height(110 to 140 cm),high seed setting rate(＞90％),strong disease resistance(medium resistance or higher),large panicle size(≥200 grains per panicle),and favorable 1000-grain weight(≥30 g).Meanwhile,13 and 20 accessions showing waxy and pigmented coloration,respectively,were identified.These germplasm resources serve as raw materials supporting the academic research and breeding for new varieties in rice.关键词
湖南/水稻/种质资源/鉴定评价/优异种质Key words
Hunan/rice/germplasm resources/identification and evaluation/special germplasm引用本文复制引用
宋根才,段永红,杨天铭,邓晶,余亚莹,阳标仁,黄凤林..第三次湖南省水稻普查收集种质资源鉴定评价[J].植物遗传资源学报,2025,26(4):646-655,10.基金项目
第三次湖南省农作物种质资源普查与收集行动 （）
湖南省农业科技创新资金项目(2024CX18)The Third General Survey and Collection Action of Crop Germplasm Resources in Hunan Province （2024CX18）
Hunan Agricultural Science and Technology Innovation Fund Project(2024CX18) （2024CX18）
