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中国农学通报

中国农学通报 ›› 2006, Vol. 22 ›› Issue (4): 191-191.

所属专题： 玉米

• 目次 • 上一篇    下一篇

高产中早熟玉米杂交种选育探讨

陈润玲,赵保献,梁晓伟,张凤瑞,雷晓兵,王向阳,李文晓   

  • 出版日期:2006-04-05 发布日期:2006-04-05

Studies on Breeding High-yield Early and Iintermediate-rip Ening Hybrid Corn

Chen Runling, Zhao Baoxian, Liang Xiaowei, Zhang Fenrui, Lei Xiaobing, Wang Xiangyang, Li Wenxiao   

  • Online:2006-04-05 Published:2006-04-05

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摘要： 通过对玉米高产构成因素分析，结合育种实践，着重探讨了高产、高配合力中早熟玉米自交系选育问题，明确指出：（1）玉米种质基础的拓宽是玉米选系材料创新的基础；（2）籽粒排列紧密程度是选育高配合力自交系的关键；（3）组配组合时，结合杂优模式，不为杂种优势模式所束缚，广配组合，进行杂交种产量比较观察，多点鉴定，慎重“破格升级”，缩短育种年限。

关键词: 布尔山羊, 布尔山羊, 胚胎移植, 受孕, 影响因子

Abstract: Integrating componential factors affecting high yield with breeding practice, this article mainly probes into high yield and in breeding early and intermediate-maturing inbred line and concludes that: (1) The extension of germ plasm is the innovation basis for choosing materials for corn breeding; (2) The compactness of seed sequencing is the key to breed high combining ability inbred line maile; (3) Combining the advantages of hybrid while not restricted to it in combination, comparative observation on the yield of hybrid variety and multi-spot observation are necessary to shorten the span of breeding and to guard against “pre-upgrading”.