福建农业学报2017，Vol.32Issue(1)：31-35,5.DOI:10.19303/j.issn.1008-0384.2017.01.007
不同栽培环境下籼稻整精米率和垩白度稳定性评价
Breakage and Chalkiness of Milled Grains of New Hybrid Indica Rice Bred in Fujian
摘要
Abstract
Percentage of breakage and degree of chalkiness of themilled grains from 42 new varieties of rice tested by Fujian Rice Research Institute in 2015 were compared.It was found that thebrakeage rateafter millingand the chalkiness of the grains of theearly-season rice from the test cultivation area at Liangchen were significantly lower than those fromthe other locations.Among all,the grain breakage rate of the mid-season varieties from Xinluo,while the chalkinessfrom Nanjing,was the lowest.For the late-season rice,the grain brakeage and chalkiness rates were the lowest from Zhangzhou.Planting area affectedqualities ofthe rice in varying degrees.For instance,the grain brakeage of the early-season rice was found to be significantly moresensitive to the location where it was cultivatedthan the mid-seasonor the late-season varieties,with the coefficients of variation of 56.0％,21.6％ and 11.0％,respectively.And,on the chalkiness,the early-,mid-and late-season varietiesshowed the coefficients of 35.1％,34.9％ and 31.2％,respectively.Consequently,it seemed appropriate that cultivation localityshould be included in evaluating the grain qualityof a new rice variety in the future.And,Liangchen appeared suitable for regional testing on early-season rice.关键词
杂交籼稻/整精米率/垩白度/稳定性Key words
hybrid indica rice/breakage rate of milledrice grains/chalkiness rate/stability分类
农业科技引用本文复制引用
李清华,郑苹立,郑长林,刘庸庆,刘连生,黄庭旭..不同栽培环境下籼稻整精米率和垩白度稳定性评价[J].福建农业学报,2017,32(1):31-35,5.基金项目
福建省科技计划项目——省属公益类科研院所基本科研专项(2014R1021-9、2014R1021-5) （2014R1021-9、2014R1021-5）
