Y Liangyou 143, which was firstly examined and approved by Guangxi and Hainan Province and then introduced in Hunan Province, has showed its extensive adaptability in regional trial in Guizhou, Guangxi, Shaanxi and ot...Y Liangyou 143, which was firstly examined and approved by Guangxi and Hainan Province and then introduced in Hunan Province, has showed its extensive adaptability in regional trial in Guizhou, Guangxi, Shaanxi and other provinces. In this study, the author, based on many years of demonstration and promotion experience, summarizes the high yield cultivating techniques of the combination.展开更多
湖南金健种业有限责任公司与常德市农科所合作用[珍汕97B×(菲改B×V20B)F10]F4×[(菲改B×V20B)F10×金23B]F4的F7代与优质稻黑宝的无色变异株杂交,经3 a 6代的定向选择得到优质人工制保材料(代号645),再与金23A...湖南金健种业有限责任公司与常德市农科所合作用[珍汕97B×(菲改B×V20B)F10]F4×[(菲改B×V20B)F10×金23B]F4的F7代与优质稻黑宝的无色变异株杂交,经3 a 6代的定向选择得到优质人工制保材料(代号645),再与金23A测交并连续回交转育成优质野败型迟熟籼稻不育系健645A。该不育系不育性稳定,不育株率100%,花粉不育度100%,自交结实率为0,开花习性好,花时早,自然条件下柱头外露率高达82.39%,异交结实率高,繁殖制种产量高;米质优良,12项米质指标均达部颁优质米2级以上标准;生育期较长,配合力好,所配组合产量优势强,且米质优良。健645A于2006年2月通过湖南省农作物品种审定。展开更多
基金Supported by the National Special Project for Biological Breeding Capacity Construction and Industrialization(2012-1961)Project of Commercialized Breeding of the Ministry of Science and Technology(2014Ado1B03)~~
文摘Y Liangyou 143, which was firstly examined and approved by Guangxi and Hainan Province and then introduced in Hunan Province, has showed its extensive adaptability in regional trial in Guizhou, Guangxi, Shaanxi and other provinces. In this study, the author, based on many years of demonstration and promotion experience, summarizes the high yield cultivating techniques of the combination.
文摘湖南金健种业有限责任公司与常德市农科所合作用[珍汕97B×(菲改B×V20B)F10]F4×[(菲改B×V20B)F10×金23B]F4的F7代与优质稻黑宝的无色变异株杂交,经3 a 6代的定向选择得到优质人工制保材料(代号645),再与金23A测交并连续回交转育成优质野败型迟熟籼稻不育系健645A。该不育系不育性稳定,不育株率100%,花粉不育度100%,自交结实率为0,开花习性好,花时早,自然条件下柱头外露率高达82.39%,异交结实率高,繁殖制种产量高;米质优良,12项米质指标均达部颁优质米2级以上标准;生育期较长,配合力好,所配组合产量优势强,且米质优良。健645A于2006年2月通过湖南省农作物品种审定。
