高柱头外露率中粳不育系春江99A的选育和利用 |
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引用本文: | 林建荣,吴明国,宋昕蔚. 高柱头外露率中粳不育系春江99A的选育和利用[J]. 中国稻米, 2016, 0(1): 87-89. DOI: 10.3969/j.issn.1006-8082.2016.01.022 |
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作者姓名: | 林建荣 吴明国 宋昕蔚 |
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作者单位: | 中国水稻研究所,杭州,310006 |
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基金项目: | 浙江省“0406”项目,中国水稻研究所基本科研业务费项目,中国农业科学院科技创新工程项目,浙江省自然科学基金 |
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摘 要: | 春江99A是中国水稻研究所利用滇型粳稻不育系春江16A为母本,以粳稻保持系春江99B(春江19B×春江099)作父本杂交,经连续多代选择回交和育性鉴定,转育成的中粳不育系,2014年9月通过浙江省农作物品种审定委员会组织的不育系鉴定。春江99A育性稳定,柱头外露率高,花时较早,异交结实率高,株型好,叶色浅绿,配合力好。利用春江99A配制的籼粳亚种间杂交稻组合表现出杂种优势强,叶色较淡,抗倒性好,全生育期短,后期转色好等特点。
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关 键 词: | 水稻 中粳不育系 春江99A 柱头外露率 选育 |
Breeding and Utilization of Late Medium Japonica CMS Line Chunjiang 99A with High Stigma Exsertion Rate |
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Abstract: | Chunjiang 99A is a late medium Japonica CMS line, developed through crossing Chunjiang 99B(Chunjiang 19B×Chunjiang 099) to Chunjiang 16A and successively backcrossing with Chunjiang 99B as recurrent parent, It was registered and released by Zhe-jiang Provincial Crop Variety Appraisal Committee in 2014. Its percentage of sterile plants was 100%, and its pollen sterility was 99.99%. It had the characteristics of high stigma exsertion rate, early flowering, high outcrossing rate, good plant type, pale green leaf and good combining ability. Its F1 hybrids especially for Japonica-Indica cross hybrids showed dominant heterosis, light leaf color, strong lodging resistance, short whole growing period and good color change in mature stage. |
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Keywords: | rice late medium japonica CMS line Chunjiang 99A stigma exsertion rate breeding |
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