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Improvements in Sugarcane (Saccharum spp.) Varieties and Parent Traceability Analysis in Yunnan, China

文献类型： 外文期刊

作者： Zhao, Yong 1 ; Zan, Fenggang 1 ; Deng, Jun 1 ; Zhao, Peifang 1 ; Zhao, Jun 1 ; Wu, Caiwen 1 ; Liu, Jiayong 1 ; Zhang, Yuebin 1 ;

作者机构： 1.Yunnan Acad Agr Sci, Sugarcane Res Inst, Kaiyuan 661699, Peoples R China

关键词： sugarcane (Saccharum spp.); variety improvements; agronomic/industrial characteristics; disease incidence; parent traceability

期刊名称：AGRONOMY-BASEL （ 影响因子：3.949； 五年影响因子：4.117 ）

ISSN：

年卷期： 2022 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Sugarcane (Saccharum spp.) breeding in China has a history of nearly 70 years. Yunnan province represents the second largest sugarcane planting area in China; therefore, by studying the evolution of sugarcane varieties in this region, it is possible to gain an understanding of the process of improvement since the foundation of sugarcane hybrid breeding. In this study, we compared the main industrial and agronomical characteristics of 107 sugarcane varieties, developed between 1952 and 2020, and discussed the reasons for replacement and exchange. Overall, significant differences were observed (p < 0.01), highlighting notable improvements, especially in terms of yield; however, disease incidence remains a serious issue and the fundamental reason for variety replacement. Meanwhile, analysis of parent traceability revealed that the main varieties cultivated at present have a similar parental relationship based around CP, F, and YC series germplasms. Taken together, these findings suggest that disease-resistant breeding should be strengthened, and susceptible varieties eliminated, while making full use of existing varieties as core parents.

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