"单种子-速度Bulks:"一个协议,将"速度育种"与成本效益高的修改单种子下降方法相结合,用于麦 (Avena sativa L.) 的快速生成进步
Milcah Kigoni1, Megan Choi1, Juan David Arbelaez2
1Department of Crop Sciences, University of Illinois, Turner Hall AW-101, 1102 S. Goodwin Ave., 046, Urbana- Champaign, Urbana, IL, 61801, USA.
Plant methods
|August 27, 2023
概括
为了加速麦的繁殖,这项研究将快速繁殖与在沙子中高密度种植相结合. 这种新的协议减少了20天的开花时间,削减了成本和温室空间,以获得更快的遗传收益.
科学领域:
- 植物科学 植物科学
- 农业科学 农业科学
- 遗传学 遗传学 是一个
背景情况:
- 减少繁殖周期时间是实现自传粉作物的成本效益基因增益的关键.
- 之前的研究表明,高工厂密度和有限的沙资源减少了固定线路的时间/成本.
- 快速繁殖 (22小时光周期) 显著缩短了麦的开花时间.
研究的目的:
- 结合快速育种技术与在有限生育度的媒介中进行高密度种植.
- 为了进一步降低开发麦单种子下降线的成本和时间.
主要方法:
- 麦植物在低密度 (控制),高密度的盆栽混合物 (HD-土壤) 和高密度的沙子 (HD-沙子) 中生长.
- 植物暴露于16小时和22小时的日长.
- 评估了散装条件下的开花时间和单种子生产.
主要成果:
- 与对照组相比,22小时日长的HD-sand减少了约20天的开花时间.
- 在22小时的光周期中,HD-sand与16小时的对照组相比,导致~5天的减少.
- 85%的HD-sand植物大量生产了一颗单独的种子,而HD-soil的种子只有40%.
结论:
- 一个使用高密度种植在22小时白天长度的沙子中的新方案显著减少了麦花期的20天.
- 这种方法产生了单种子,与单种子下降原则保持一致,同时降低了劳动力和空间成本.
- 该方法可以加速各种特征的麦育种计划中的遗传收益.
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