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Position: Home > Articles > The Genetic Research and Utilization Reference of S. spontaneum First Flowering Journal of Anhui Agricultural Sciences 2015 (22) 48-51+58

割手密始花期的遗传研究与利用参考

作  者:
吉家乐;符成;王勤南;吴其卫;常海龙;周峰;张垂明;胡后祥;陈俊吕;刘少谋
单  位:
广州甘蔗糖业研究所海南甘蔗育种场
关键词:
割手密;始花期;遗传力
摘  要:
[目的]为甘蔗"高贵化"杂交制种提供理论依据,充分利用甘蔗野生种质资源。[方法]采用广义遗传力统计分析了112份割手密连续3年始花期的调查资料,同时调查花粉量与结实率,为杂交利用提供参考。[结果]割手密始花期的广义遗传力达0.079。割手密的始花期年际间差异在4~49 d之间,平均为13.65 d。年际间变化在20 d内占90%,超过30 d的仅占4.5%。[结论]部分早花割手密经处理后始花期都明显推迟,在杂交季节中必须根据花期变化的实际情况对当年的杂交计划作适当的调整,才能得以充分利用。
译  名:
The Genetic Research and Utilization Reference of S. spontaneum First Flowering
作  者:
JI Jia-le;FU Cheng;WANG Qin-nan;LIU Shao-mou;Hainan Sugarcane Breeding Station,Guangzhou Sugarcane Industry Research Institute;
关键词:
S.spontaneum;;First flowering;;Heritability
摘  要:
[Objective] To provide theoretical basis for sugarcane"noble"of hybrid seed production,make full use of sugarcane wild germplasm resources. [Method] The broad-sense heritability was adopted for statistical analysis of the survey data of 112 S. spontaneum three consecutive years first flowering,the pollen quantity and seed setting rate were investigated,which will provide reference for hybrid utilization.[Result]S. spontaneum first flowering generalized heritability reached 0. 079. The first flowering annual difference is between 4- 49 d,an average of 13. 65 d. Annual variations of 90% in the 20 d,and 30 d only accounts for 4. 5 percent over. [Conclusion] After processed,first flowering of S. spontaneum was significantly delayed. The hybrid plan should be adjusted according to the actual situation of flowering changes.

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