首页> 中文期刊> 《西南农业学报》 >两系杂交粳稻‘云光109’选育与繁殖制种关键技术研究

两系杂交粳稻‘云光109’选育与繁殖制种关键技术研究

         

摘要

‘云光109’是利用光敏核不育系(PGMS)‘N95076S’与恢复系云粳恢7号组配而成.具有高产(9.0 ~ 13.97 t/hm2)、感稻瘟病(9级),抗白叶枯病(3级).米饭食口性好、米质优、经检测属优质软米杂交粳稻.2011年同时通过云南省和贵州省农作物新品种审定,编号分别为滇审稻2011008号和黔审稻2011011号;2012年通过农业部超级稻认证.通过2008年至2012年‘云光109’大面积制种实践表明,‘N95076S’在湖北省仙桃市最佳抽穗扬花期安排在8月16日至8月24日.此时阳光充足、温度高使其容易通过育性转换敏感期,且不育性稳定,确保了杂交种子的纯度,以此确定最佳播种期为6月4日.在仙桃‘N95076S’不育系在9月22日左右转换为可育,因此,对‘云光109’进行繁种需在7月14日播种,9月16日实现抽穗.同时,‘云光109’经过一季制种后,可以通过再生繁殖,实现一季播种制种、繁殖双季,从而实现高产、优质、高效益.%Yunguang 109 was combined with photosensitive genic male sterile line (PGMS) ‘ N95076S' and restorer line Yunjingza No.7.It got some traits such as high yields (9.0-13.97 t/hm2),susceptible rice blast (9),bacterial blight resistance (3).The rice had good eating quality,and was a high-quality soft rice japonica two-hybrid rice through being tested.Yunguang109 was approved by both Yunnan provincial and Guizhou provincial as Dian No.2011008 and No.2011011 at the same time in 2011.Yunguang 109 was authenticated as a super rice by China ministry of agriculture in 2012.Through five years test from 2008 to 2012 for seed production,the key heading period of ‘ N95076S' was during August 16 to 24 in Xiantao.The adequate lighting and high temperature made it easy to pass the period of fertility sensitive,and sterility was stable,and the purity of hybrid seeds was ensured.So,the best sowing time can be determined on June 4.The PGMS ‘N95076S' was transformed into fertile about on September 22,therefore,Yunguang 109 should be sowed on July 14 and ensured the rice heading on September 16.The seed production of Yunguang 109 could get the regeneration multiply after one season hybrid rice.That is to say,through one season sowing,people could get double seasons high yield,good quality and high benefit.

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