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郭桂英.籼稻光温敏核不育系开花习性研究[J].中国农学通报,2018,34(26):8-14..The Flowering Habit of Photoperiod and Temperature Sensitive Genic Male-sterile (PTGMS) of Indica Rice[J].Chinese Agricultural Science Bulletin,2018,34(26):8-14
籼稻光温敏核不育系开花习性研究
The Flowering Habit of Photoperiod and Temperature Sensitive Genic Male-sterile (PTGMS) of Indica Rice
投稿时间:2017-12-27  修订日期:2018-05-18
DOI:10.11924/j.issn.1000-6850.casb17120114
中文关键词: 籼稻  光温敏核不育系  开花习性  高产制种  两系杂交稻
英文关键词: Indica rice  PTGMS  flowering habit  high-yielding seed production  Two-line Hybrid Rice
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基金项目:国家水稻现代农业产业技术体系建设专项资金“国家水稻产业技术体系信阳综合试验站”(CARS-01-61);河南省重点科技攻关“优质高产 糯稻新品种选育及应用”(162102110022);高产优质杂交稻新组合培育与示范(142102110029);河南省科技成果转化项目“优质高产水稻新品种珍珠 糯的试验与示范”(132201110017)。
作者单位E-mail
郭桂英 信阳市农业科学院 297308679@qq.com 
中文摘要:
      摘 要:旨在为两系不育系高产制种提供理论依据。用‘广占63-4s’作对照,在相同时段内测定不育系的开花习性(开花历期、单穗逐日开花动态、花时分布动态、柱头特性、包颈率和张颖特性等.)‘F168s’单穗和单株开花历期均最长;‘信丰9826s’和‘信矮10-4s’比对照花期集中,盛花期累计开花率高,开花峰值高;除‘F168s’外,其余不育系集中开花时段开花率均高于对照;除‘信丰9826s’之外,其余不育系午前开花率均低于对照;‘F168s’柱头总外露率、柱头双外露率最高;‘信矮10-4s’柱头单外露率最高;‘F168s’柱头表面积和柱头体积最大,柱头活力系数最大,柱头活力最强;除‘信丰9826s’之外,其余不育系均有包颈现象;不育系张颖时间均超过对照,‘信矮10-4s’最长;除‘信丰9826s’之外,其余不育系的颖间距和张颖角度均超过对照,‘F168s’最大。不育系制种时采取扬长避短的制种技术和人工辅助措施,可提高杂交制种产量。
英文摘要:
      The aim was to provide theoretical basis for high-yielding seed production of two line sterile lines. Using ‘Guangzhan63-4s’ as a control,the flowering habits of the sterile lines were determined in the same period of time (flowering period, day by day flowering dynamics of single spike , flowering time distribution dynamics, Stigma characteristics, cervix rate and Glume opening characteristics, etc.) ‘F168s’ single spike and single plant flowering period were the longest;‘Xinfeng9826s’ and ‘Xinai10-4s’ flowering period are more concentrated than the control ,their cumulative flowering rate during the flowering period higher and their flowering peak are higher; Except for ‘F168s’, flowering rate of other male sterile lines are higher than that of control; Except for ‘Xinfeng9826s’, the flowering rate of the other male sterile lines at noon are lower than the control; The total exposure rate of stigma and the double exposure rate of stigma in ‘F168s’ is the highest;The stigma single exposure rate in ‘Xinai10-4s’ is the highest;‘F168s’ stigma surface area and the stigma volume are the largest, the stigma activity coefficient is the largest, the stigma vitality is the strongest; Except for ‘Xinfeng9826s’,the other sterile lines have neck wrapping phenomenon; The glume opening time of all the sterile lines are more than that of the control ,and ‘Xinai10-4s’ is the most longest; Except for ‘Xinfeng9826s’,the spacing and glume angle of other sterile lines are larger than those of control, ‘F168s’ is the largest. Hybrids of sterile lines make best use of the advantages and bypass the disadvantages and artificial supplementary measures are adopted to improve the yield of hybrid seed production.
作者简介:
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