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Genotype x environment interactions in sugarcane between China and Australia

文献类型： 外文期刊

作者： Chen, Xuekuan 2 ; Jackson, Phillip 1 ; Shen, Wankuan 3 ; Deng, Haihua 3 ; Fan, Yuanhong 2 ; Li, Qiwei 3 ; Hu, Fengduo; 1 ;

作者机构： 1.James Cook Univ, CSIRO Plant Ind, Aitkenvale, Qld 4814, Australia

2.Yunnan Acad Agr Sci, Yunnan Sugarcane Res Inst, Kaiyuan 661600, Yunnan Province, Peoples R China

3.Guangzhou Sugarcane Ind Res Inst, Guangdong Key Lab Sugarcane Improvement & Bioref, Guangzhou 510316, Guangdong, Peoples R China

4.BSES Ltd, Burdekin Sugar Expt Stn, Ayr, Qld 4807, Australia

关键词： breeding;genetic correlations;germplasm exchange;selection

期刊名称：CROP & PASTURE SCIENCE （ 影响因子：2.286； 五年影响因子：2.507 ）

ISSN： 1836-0947

年卷期： 2012 年 63 卷 5 期

页码：

收录情况： SCI

摘要： Sugarcane improvement has traditionally been conducted by nationally focussed breeding programs, with some exchange of elite cultivars among some programs. It has been generally assumed by breeders that genotype x country interactions are large, and therefore selection trial data in one country may be of limited relevance to another. However, no studies quantifying clone x country interactions have been reported to our knowledge. In research reported here, a common set of mostly unselected sugarcane genotypes was evaluated in commercial production environments in Australia and China. Consistent with past studies, genotype x site interaction was an important source of variation within each country. Overall a moderate to high genetic correlation existed between production environments in China and Australia for cane yield and sugar content (0.77 for both traits). This suggests that despite difference in environmental conditions and crop management in production environments between countries, that selection trials in China have some relevance for selecting clones for Australian environments and vice versa. It also supports the hypothesis that regular exchange of selected germplasm from effective breeding programs between countries will have mutual benefits.

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