豆种子的产量,蛋白质和油度对于一个现代和旧的基因型在不同的行间隔下
Valentina M Pereyra1, Trevor Hefley2, P V Vara Prasad1,3
1Department of Agronomy, Kansas State University, Throckmorton Plant Science Center, Manhattan, KS, 66506, USA.
Heliyon
|August 20, 2024
概括
现代大豆品种的产量显著增加,特别是在狭窄的行中,由于分支增加. 这项研究表明,排距是最大限度地提高大豆产量和种子质量的关键.
科学领域:
- 农业学是一种农业学.
- 植物育种 植物育种
- 植物生理学作物生理学
背景情况:
- 大豆 (Glycine max L.) 繁殖提高了分枝能力,可能改变最佳播种率和树冠结构.
- 对于大豆树冠结构如何随着不同行间距的繁殖进步而发生变化,以及它们对产量和种子质量的影响,我们对此有有限的了解.
研究的目的:
- 为了评估各种行间距的古老和现代大豆基因型的产量和种子质量反应.
- 检查主要干和分支对不同大豆基因型和排间距的总产量和种子质量的贡献.
主要方法:
- 现场试验是在美国堪萨斯州在2020年和2021年期间在雨天条件下进行的.
- 两种大豆基因型 (1980年和2013年发布) 在四行间隔 (0.19,0.38,0.76和1.52米) 中进行了比较.
- 评估了种子产量,蛋白质和油度,并分析了2021年分支和主要茎的贡献.
主要成果:
- 在2021年,产量低且跨基因型和间隔相似;分支比主干少2.5%的蛋白质.
- 在2022年高产季节,现代基因型在狭窄的行 (<0.38米) 中产量比旧基因型高出50%.
- 与较旧的基因型相比,现代基因型显示出分支的产量贡献是旧基因型的三倍,同时保持了蛋白质水平.
结论:
- 排距是提高大豆产量的关键管理实践.
- 现代大豆基因型表现出更好的产量潜力,特别是在狭窄的行,由于增强的分支.
- 狭窄的行距离可以通过增加产量和在有利条件下保持种子蛋白质含量来优化大豆生产.
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