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Analysis on the Breeding and Major Traits of Wide-adaptability Indica CMS Line Yungu 3A
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作者 Yonggang LU Huafeng DENG +6 位作者 Jinwen ZHANG Wei DENG Yuran XU Anyu GU Wei NIAN Zhiliang LU Xiaolin LI 《Agricultural Biotechnology》 CAS 2015年第3期35-38,42,共5页
Breeding sterile lines is the key to the development of hybrid rice with wide adaptability. However, at present, few wide-adaptability sterile lines have been applied in production practice. In this study, Yungu 3A, a... Breeding sterile lines is the key to the development of hybrid rice with wide adaptability. However, at present, few wide-adaptability sterile lines have been applied in production practice. In this study, Yungu 3A, a new WA-type Indica CMS line with good grain quality, was developed by hybridization between Yunfeng 66A with wide adaptability as female parent and F1 plants of Yunfeng 66B/D62B as male parent and continuous backcrossing. According to the results, the finally obtained lndica CMS line Yungu 3A has good plant type and leaf shape, strong tillering ability, excellent flowering habit, stable and complete male sterility with the sterile plant rate and pollen sterility rate of 100%, strong combining ability, high outcrossing rate, low sensitivity to light and temperature, and strong disease resistance, which was approved by Yunnan Provincial Crop Variety Appraisal Committee in 2013. Yungu 3A is conducive to the development of new hybrid rice combinations with good quality and wide adaptability, exhibiting a promising prospect of application. 展开更多
关键词 Indica CMS lines wide adaptability High quality Flowering habits Combining ability
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