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大豆科学  2008 

麦业丰化控对大豆鼓粒期非叶光合器官与粒重关系的影响

DOI: 10.11861/j.issn.1000-9841.2008.01.0074, PP. 74-78

Keywords: 大豆,化控,非叶光合器官,粒重,麦业丰

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Abstract:

化控是大豆一项重要的增产技术。为探明化控条件下大豆非叶光合器官对粒重相对光合贡献的变化规律,以黑农41和新早-1为材料,采用铝铂遮光法研究了花期麦业丰化控处理(CK、化控1次、化控2次)条件下,大豆鼓粒期间荚、叶柄、叶片对粒重相对光合贡献的变化。结果表明,荚对粒重相对光合贡献依次为4.84%、8.44%、17.58%;叶柄对粒重相对光合贡献依次为5.91%、3.34%、12.92%;叶片对粒重相对光合贡献分别为34.03%、26?29%、17.00%。麦业丰化控提高了荚、叶柄对粒重相对光合贡献,降低了叶片对粒重相对光合贡献。化控技术增产与叶片和豆荚光合性能的改变有关。

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