育种效率对于的耐受性在柳
Michael D Peel1, M Rokebul Anower2, Yajun Wu3
1Forage and Range Research, Logan, UT 84322, USA.
Life (Basel, Switzerland)
|November 25, 2023
概括
繁殖草 (Medicago sativa L.) 品种增强了盐分耐受性,在盐水条件下显著增加了料质量. 与母体种群相比,选定的品种表现出更好的产量和弹性.
科学领域:
- 农业学是一种农业学.
- 植物育种 植物育种
- 盐度 压力生理学 盐度 压力生理学
背景情况:
- (Medicago sativa L.) 是一种对土壤盐度高度敏感的重要料作物.
- 盐水土壤显著降低作物产量和质量,对农业生产率构成挑战.
研究的目的:
- 为了评估的增强盐分耐受性的育种效率.
- 为了在不同盐度下比较选定草系与父母系的料质量和其他农业学特征.
主要方法:
- 从BC79S,CS和SII种群中选择草种系,以盐分耐受性为基础.
- 测量料质量,茎长,叶与茎比 (LSR),节点数,原蛋白 (CP) 和中性洗剂纤维 (NDF).
- 在非盐应力和盐应力两种场地条件下,对选定的线条和家长介质进行比较.
主要成果:
- 总体料质量在盐应力条件下比非应力条件下低40% (5783公斤/ha-1),低于非应力条件 (9562公斤/ha-1).
- 选择的品种表现出与其父母相比,在盐压力下季节性料生产增加了20%.
- 在非压力和盐压力条件下,选择的线条显示了改善的料质量,其中一些超出了父母的手段.
结论:
- 实施的选择协议有效地提高了的盐分耐受性,从而在盐的田间条件下增加了料质量.
- 特定的选定品种表现出卓越的性能,为开发适用于盐水环境的更有弹性草品种提供了潜力.
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