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形态生理和产量特征用于选择耐旱草生态型的Urochloa

Celestine Anyango Ochola¹, Mathew Pierro Ngugi¹, Evans N Nyaboga²

¹Department of Biochemistry, Microbiology and Biotechnology, Kenyatta University, P.O Box 43844-00100, Nairobi, Kenya.

|July 1, 2024

概括

使用形态生理特征和抗旱指数识别了耐干旱的乌罗罗亚草. 特定的生态类型在水压下表现出卓越的表现,为可持续的牲畜料提供了潜力.

科学领域:

农业科学农业科学
植物生理学植物生理学
农业学是一种农业学.

背景情况:

经常出现的干旱大大降低了料产量,影响了牲畜料资源,需要耐旱的料作物.
可持续的畜牧生产依赖于识别和利用适应水资源短缺的料品种.

研究的目的:

为了识别耐旱的乌罗洛亚草生态型.
评估Urochloa草在水压下的形态生理和产量特征.
确定这些特征与抗旱指数之间的关系.

主要方法:

评估了在不同水处理条件下的形态生理特征 (植物高度,叶数,耕) 和产量 (干物质).
测量的生理参数包括相对含水量,光系统II效率和非光化学火.
使用主要组件分析和干旱耐受性指标 (平均生产率,几何平均生产率,耐受性指数,应力耐受性指数).

主要成果:

水系和生态型相互作用显著影响了所有研究的特征.
缺水减少了植物的高度,叶子和的数量,干物质产量,相对含水量和光系统II的效率.
生态类型K17,K7,Kisii,Busia和Kakamega被确定为高度耐旱的生态类型.

结论:

干旱耐受性指标有效地在水压下识别了高生物质的Urochloa生态型.
五种最耐旱的生态类型 (K17,K7,Kisii,Busia,Kakamega) 显示出对现场测试和育种计划的希望.
开发高产量,耐旱的乌洛克洛亚品种对于可持续的畜牧业生产至关重要.

关键词:

生态类型生态类型乌罗克洛亚 (Urochloa) 是一个小岛.料料是一种料.主要组件分析的主要组件分析水的压力是水压力.

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