不育系繁殖育秧技术研究  

作　　者：黄培英 王际凤 陈文彪 施文娟 朱速松 王成招 涂丹 张大双 彭强 

机构地区：[1]贵州省水稻研究所,贵州贵阳550006 [2]贵州红四方农业发展股份有限公司,贵州岑巩557800 [3]贵州省种子管理总站,贵州贵阳550001

出　　处：《农技服务》2016年第3期11-12,10,共3页AGRICULTURAL TECHNOLOGY SERVICE

基　　金：国家成果转化资金"高产抗病抗寒杂交稻汕优108大面积示范"(编号:2014GB2F200257);贵州省科技厅农业攻关"多抗杂交水稻新组合黔优108示范研究"(编号:黔科合NY(2013)3002);贵州省农业科学院院专项"汕优108稻瘟病抗谱及高产制种技术研究"(编号:黔农科院院专项[2013]012);贵州省农业科学院院专项"抗稻瘟病水稻恢复系联合2号的抗性基因研究"(编号:黔农科院院专项[2011]028);贵州省农业科学院科技成果培育与人才培养项目"自育杂交水稻组合不育系育种繁殖技术研究"(编号:黔农科院CR合字(2014)58号);贵州省农业动植物育种项目"杂交稻新组合汕优108优质高产制种技术研究"(编号:黔农育专字(2014)001)

摘　　要：采用旱育秧和湿润育秧技术培育不育系和保持系秧苗,研究了不育系珍汕97A的繁殖技术。结果如下:(1)旱育秧秧苗矮化,分蘖迟缓,叶片生长慢,秧苗素质不如湿润育秧秧苗。(2)湿润育秧始穗期比旱育秧早2—3d,齐穗期比旱育秧早5d,始穗-齐穗历时比旱育秧短2—3d。(3)不育系湿润育秧种子产量显著高于不育系旱育秧,以不育系湿润育秧和保持系旱育秧处理的产量最高为118.3kg/667m^2。增产的主要原因是不育系湿润育秧穗型大、结实率高。Seed production technology of sterile line Zhenshan 97A was studied to increase yield, by using seedling in dry-land and in wet-land conditions. The results were as follows：（1）height of seedling in dry-land condition was dwarf, growth of leaf and tiller was slow, resulting in seedling quality in dry-land condition than seedling quality in wet-land condition; （2）Day of seedling in wet-land condition from sowing to 10% heading was 2-3d earlier than that of seedling in dry-land condition, day of seedling in wet-land condition from sowing to 80% heading was 5d earlier than that of seedling in dry-land condition, and duration of seedling in wet-land condition from 10% heading to 80% heading was 2-3d shorter than that of seedling in dry-land condition; （3） Yield of seed production by using seedling of sterile line Zhenshan 97A in wet-land condition and seedling of maintainer line Zhenshan 97B was 1774.5kg per hectare, the highest in 4 modes of seed production t in dry-land condition. The main reason is that panicle of sterile line Zhenshan 97A in wet-land condition is large and seed setting rate of sterile line Zhenshan 97A in wet-land condition is high.

关 键 词：不育系 繁殖 湿润育秧 旱育秧 产量 

分 类 号：S511[农业科学—作物学]