水稻光温敏核不育系福龙S2的育性观察  

Observation on fertility of photo-thermo sensitive genic sterile male rice line “Fulong S2”

作　　者：彭玉林[1] 兰华雄[1] 徐淑英[1] 左生力[1] 马益虎[1] 苏国藩[1] 

机构地区：[1]福建省龙岩市农业科学研究所,363000

出　　处：《福建农业科技》2015年第6期1-4,共4页Fujian Agricultural Science and Technology

基　　金：福建省重大科技计划项目(2002N011)

摘　　要：以培矮64S为对照，采用分期播种试验，分析水稻光温敏核不育系福龙s2的育性与特征特性表现，结果表明：福龙s2播始历期86—89d；稳定不育期从7月20日开始；开花习性好，柱头活力强，午前花比率达70％以上；柱头外露率较高，单边外露率高于双边外露率；福龙s2比培矮64S具有更好的异交结实特性。A trial of sowing by different stages was carried out with rice ＂Peiai64S＂ as control in order to analyze fertility and characteristics of photo-thermo sensitive genic sterile male rice line ＂Fulong S2＂. The results showed that sowing duration of ＂Fulong S2＂ from initial date was 86 - 89 days. Its steady sterile period appeared since July 20. It had good flowering habit and strong stigma vigor. Its blooming rate before noon reached over 70%. It had high rate of extruded stigma and rate of unilateral extruded stigma was higher than that of bilateral. The outcrossing seed-setting rate of ＂Fulong S2＂ was higher than that of ＂Peiai64S＂.

关 键 词：水稻 光温敏核不育系 福龙S2 开花习性 柱头活力 异交结实率 

分 类 号：S511[农业科学—作物学]