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叶子烧伤对光合作用特性,果实产量和核桃质量的影响
Tong Guo1, Cuifang Zhang1, Shiwei Wang1
1College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Xinjiang, 830052 China.
概括
核桃叶烧伤 (WLS) 显著降低了光合作用效率和果实产量.
科学领域:
- 植物病理学 植物病理学
- 农业科学 农业科学
- 植物生理学 植物生理学
背景情况:
- 核桃叶烧 (WLS) 是一种影响Juglans regia的疾病.
- 了解WLS对生理学和水果产量的影响对于种植至关重要.
研究的目的:
- 在两个核桃品种中研究WLS的生理和生化后果.
- 评估WLS对水果产量和质量的影响.
主要方法:
- 在健康和患病的叶子中对光合作用参数 (Pn,Gs,Ci,Fv/Fm) 的比较分析.
- 生物化学指标的测量,包括马隆迪化物 (MDA),可溶性蛋白质 (SP) 和抗氧化酶活性 (SOD).
- 评价水果产量和质量参数 (重量,直径,内核提取率,脂肪,蛋白质含量).
主要成果:
- WLS降低了光合作用率,口腔导电率和光系统II (PSII) 的最大光化学效率.
- 患病的叶子显示了甲含量增加,表明脂质过氧化,并且改变了抗氧化酶活性.
- 果实产量和质量参数,包括果实重量,内核提取率,脂肪和蛋白质含量在受病植物中降低.
结论:
- WLS损害了碳同化和PSII活性,导致氧化应激和减少抗氧化能力.
- 这种疾病对核桃水果的产量和质量产生了负面影响,观察到品种差异.
- 需要管理策略来减轻WLS对核桃产量的影响.
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