芽特征与阿马兰修士L retroflexus中的尼科硫耐药性相关
Yingying Zhang1,2, Xian Xu1, Bochui Zhao1
1Key Laboratory of Crop Cultivation Physiology and Green Production of Hebei Province, Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, China.
PloS one
|August 12, 2024
概括
阿玛兰 (Amaranthus retroflexus) (R) 中的尼科硫耐药性可能会产生健康成本,与敏感生物型 (S) 相比,发芽率降低. 深耕被提议作为一种有效的杂草管理策略来对抗耐药物种群.
科学领域:
- 农业科学 农业科学
- 植物生物学 植物生物学
- 杂草科学 杂草科学
背景情况:
- 尼科硫除草剂耐药性已经在Amaranthus retroflexus种群中发展.
- 了解与除草剂耐药性相关的健康成本对于有效的杂草管理至关重要.
- 研究耐药和敏感生物型对环境因素的不同发芽反应,可以揭示适应性权衡.
研究的目的:
- 通过比较耐药 (R) 和敏感 (S) 生物型的发芽反应,评估Amaranthus retroflexus中尼科硫抗性的健身成本.
- 确定影响发芽的环境因素及其对R和S生物型的差异影响.
- 提出有效的杂草控制策略,用于管理耐尼科硫抗药的Amaranthus retroflexus.
主要方法:
- 耐尼科硫 (R) 和耐尼科硫 (S) 敏感的Amaranthus retroflexus种子经历了各种非生物处理:温度,光,盐应激,透潜力,pH值和埋葬深度.
- 在不同的条件下,测量了两种生物型的发芽率和发芽指数.
- 统计分析 (p<0.05) 用于确定发芽反应的显著差异.
主要成果:
- 敏感的 (S) 生物型通常比耐药的 (R) 生物型表现出更高的发芽率和指数.
- 在盐应力 (80 mM),特定水电位 (-0.1至-0.4 MPa) 和极端pH条件下的S和R生物型之间观察到发芽指数的显著差异 (p<0.05).
- 在R种群中延迟发芽表明,种子的生物化学成分发生了变化,与尼可硫耐药性有关.
- 阿玛兰 (Amaranthus retroflexus) 对温度,光线和埋葬深度表现出强烈的反应,盐,透潜力和pH的影响有限.
结论:
- 阿玛兰 (Amaranthus retroflexus) 的尼科硫耐药性可能与健康成本有关,在某些环境压力下表现为发芽减少.
- 温度,光线和埋葬深度等环境因素在Amaranthus retroflexus发芽过程中起到的作用比盐,透潜力或pH更为重要.
- 亚玛兰 (Amaranthus retroflexus) 的种子通常不会从深度大于6厘米的地方浮出水面.
- 在播种前进行深度倒置耕作是一种潜在的有效和经济的方法,用于管理耐尼科苏尔的阿马兰修斯 (Amaranthus retroflexus) 种群.
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