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金优498是湖南省水稻研究所以“金23A”为母本,以丰产性好的自育三系恢复系“R498”为父本,于2007年配制而成的三系杂交晚籼新组合。该品种具有穗粒结构均衡,丰产性好,综合性状优良,米质优异等特点。2008～2009年参加湖南省区试,生育期110.1天,平均产量为7 725 kg/hm2,比对照金优207增产7.41%;日产4.68kg,比对照高0.21 kg。文章简要介绍了金优498的选育经过及其栽培、制种种技术。
Jinyou 498 is the rice research institute of Hunan Province with “Gold 23A ” as the female parent, high fertility and good self-breeding three lines restorer “R498 ” as the father, formulated in 2007 three-line hybrid late Indica new combinations. The varieties have a balanced grain structure, high yield, good overall characteristics, excellent quality and so on. From 2008 to 2009, they took part in the Hunan provincial trial, with a growth period of 110.1 days and an average yield of 7 725 kg / hm2, an increase of 7.41% over the control Jinyou 207; 4.68 kg per day, 0.21 kg higher than that of the control. This article briefly introduced the selection and breeding of Jinyou 498 and its variety of techniques.