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Position: Home > Articles > The Evolution of Important Agronomic Traits during Maize Breeding Programs Anhui Agricultural Science Bulletin 2013 (24) 18-19+68

玉米育种进程中的重要农艺性状演化研究

作  者:
蒲全波;杨克相;罗阳春;李仁江;吴迅;何川;李钟;郑祖平
单  位:
南充市农牧业局农业技术推广站;南充市农业科学院;达州市农业局植保站
关键词:
玉米育种;农艺性状;演化
摘  要:
玉米育种是了解生产需求并创造性地满足生产需求的过程。特定种植模式以及特定栽培密度对玉米品种的需求存在差异。该项研究以1996-2012年四川省区域试验杂交组合为材料,研究不同时期杂交组合的生育期变化和穗行数变异。其中生育期随着育种时期的推进在不断减少,但均高于100d;穗行数则呈现分阶段增加或减少的变化,表现为1995-2005年增加而2005-2012年减少的变化趋势。这一研究结果体现了立体种质模式下的玉米品种更替,同时也揭示了增加单位面积种植密度在我国西南地区玉米高产中的意义。
译  名:
The Evolution of Important Agronomic Traits during Maize Breeding Programs
作  者:
Pu Quanbo;Nanchong Academy of Agricultural Sciences;
关键词:
Maize breeding;;Agronomic traits;;Evolution
摘  要:
Maize breeding process is asking and satisfying the needing of society. To investigate the differences of maize varieties under different cultivated systems,grow days and ear number of hybrids made among 1996-2012 were analyzed. Results showed that grow days were decreased during maize breeding process. Ear number showed increased among 1996-2005 and decreased among 2005-2012,respectively. This results suggested that interval cultivated system and increasing cultivated density of maize would be popular in the future of maize production.

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