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大穗型籼稻三系不育系浙91A的选育 被引量:3
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作者 张利华 王建军 王林友 《杂交水稻》 CSCD 北大核心 2004年第4期7-9,共3页
浙 91A是以野败籼型不育系V2 0A为母本 ,用浙农 80 10B 浙农 91后代中选株系为父本杂交 ,采用连续单株花粉育性镜检 ,连续回交转育而成的籼型不育系。其穗型大 ,每穗粒数达 15 5 .6粒 ;主要稻米品质指标明显优于浙江省主配不育系协青早... 浙 91A是以野败籼型不育系V2 0A为母本 ,用浙农 80 10B 浙农 91后代中选株系为父本杂交 ,采用连续单株花粉育性镜检 ,连续回交转育而成的籼型不育系。其穗型大 ,每穗粒数达 15 5 .6粒 ;主要稻米品质指标明显优于浙江省主配不育系协青早A ;不育株率 10 0 % ,花粉不育度 10 0 % ;柱头外露率 60 .1% ,异交结实率 5 5 %左右 ,易于繁殖制种。 2 0 0 3年 9月通过了由浙江省科技厅组织的技术鉴定 ,配制的新组合正进行试验试种。 展开更多
关键词 水稻 不育系 浙91a 大穗型 选育
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Heterosis Analysis and Utilization of Agronomic Traits of Rice Male Sterile Line Jiazhe 91A 被引量:7
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作者 李友发 富昊伟 马兴华 《Agricultural Science & Technology》 CAS 2010年第1期42-44,50,共4页
[Objective]Provide a theoretical basis for the popularization and application of Jiazhe 91A through the research and analysis on the advantages and characteristics of F1 generation of Jiazhe 91A combinations. [Method]... [Objective]Provide a theoretical basis for the popularization and application of Jiazhe 91A through the research and analysis on the advantages and characteristics of F1 generation of Jiazhe 91A combinations. [Method]The mid-parent heterosis,heterobeltiosis,competitive advantage and average dominance of the F1 generation of the three combinations configured by Jiazhe 91A were analyzed by the comparison and appraisal test of combinations configured by Jiazhe 91A. [Result]the panicle shape of the F1 generation of the three combinations configured by Jiazhe 91A was larger,and the panicles number was greater than its parents,the growing period was shorter than that of Shanyou 63,while the spikelets per panicle,seed setting rate and yield were higher than the control Shanyou 63,and the yield was 2.7% to 12.1% higher than Shanyou 63. [Conclusion]The sterility of Jiazhe 91A sterility was stable,and had a strong restoring ability,so it had widespread application prospects. 展开更多
关键词 Male sterile line Jiazhe 91a Combination Combining ability Application prospects
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