水稻顶端颖花退化的形态与发育学研究  

Research on Phenotype and Development of Abortion Top Spikelet in Rice(Oryza sativa L.)

作　　者：姜辉[1] 姜树坤[1] 陈丽丽[2] 王嘉宇[2] 白良明[1] 孙世臣[1] 张凤鸣[1] 丁国华[1] 王彤彤[1] 张喜娟[1] 夏天舒[1] 

机构地区：[1]黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨150086 [2]沈阳农业大学水稻研究所,辽宁沈阳110866

出　　处：《黑龙江农业科学》2016年第1期7-11,共5页Heilongjiang Agricultural Sciences

基　　金：中国博士后科学基金面上资助项目(2011M501077);黑龙江省博士后资助项目(LBH-Z11030);国家科技支撑计划资助项目(2011 BAD16B11);(2011BAD35B02)

摘　　要：为指导水稻生产,提高其产量,以水稻顶端颖花退化材料ats1和对照品种秋光为材料研究幼穗及颖花的形态状态及发育规律。结果表明:ats1在株型、生育进程、抽穗期等农艺性状上与秋光无明显差异。形态上,ats1上部颖花退化,下部颖花正常。抽穗后,上部颖花败育脱落,穗顶仅留下部分穗轴。发育上ats1的上部退化颖花能发育出1对副护颖、1对护颖、外颖、内颖、2枚浆片、6枚雄蕊和l枚雌蕊等花器,但发育不成熟。ats1顶端颖花退化发生在幼穗发育的In8阶段。In order to guide rice production and improve the yield, the abortion top spikeletvariety atsl and CK variety Akihikari were used as materials to research the phenotype and development of young panicle and spike- let. The results showed that atsl exhibited remarkable phenotypes with a number of whitish and undeveloped （immature） spikelet in the primary branches at the top of panicle after heading. The abortion spikelet could de- velop a pair of a pair of rudimentary glume, a pair of empty glume,lemma, patea, two lodicule, six stamen and one carpel. But all these floral organs did not develop maturity. The top spikelet stopped developing at In 8.

关 键 词：水稻 顶端颖花退化 形态 发育 

分 类 号：S511[农业科学—作物学]