福建农业学报2017，Vol.32Issue(3)：242-247,6.DOI:10.19303/j.issn.1008-0384.2017.03.003
杂交水稻育种骨干亲本的米质分析
Grain Quality of Primal Parental Lines in Hybrid Rice Breeding
摘要
Abstract
Grain quality of primal parental rice lines is a key element for evaluation in breeding new varieties.This article presents the results of a population structure-based analysis on the quality of 274 primal parental lines of hybrid rice used in China and abroad.It was found that,in general,the average brown rice yield and the transparency,gel consistency and amylose content (AC) of the grains of indica rice exceeded the grading criteria for the 3rdquality tier.For japonica rice,the brown rice yield,head milled rice rate,and the transparency,gel consistency and AC of the grains met the high quality criteria.The percentages of indica that showed superior quality indices varied between 27.7% to 97.7% among all;while japonica,16.7% to 100%.Grain chalkiness were low for all indica and japonica.Among indica,chalkiness and AC needed the greatest attention for improvements onthe restorer as well as the maintainer lines;AC was good on the conventional rice;and,the overall quality of IR43 and GIZA 178 tropical indica was considered excellent for breeding purposes.In all,23 primal parental lines were found to have all 10 quality traits graded as high,or higher than,the 3rd tier.Hence,they could be potential candidates for breeding new rice varieties.As for the deficiency on grain chalkiness,it was recommended that specific germplasms with the desirable trait be introduced for breeding to mitigate the shortcoming in the future.关键词
水稻骨干亲本/籼稻/粳稻/米质/品质改良Key words
rice primal parental lines/indica rice/japonica rice/grain quality/quality improvement分类
农业科技引用本文复制引用
王颖姮,蔡秋华,廖长见,郑燕梅,何炜,张建福,谢华安..杂交水稻育种骨干亲本的米质分析[J].福建农业学报,2017,32(3):242-247,6.基金项目
国家重点研发计划项目(2016YFD0101801) （2016YFD0101801）
福建省科技计划项目--省属公益类科研院所基本科研专项(2015R1021-8、2015R1021-7) （2015R1021-8、2015R1021-7）
