处理番茄对植物生物刺激剂的反应受环境条件的调节
Giovanna Marta Fusco1, Andrea Burato2,3, Alfonso Pentangelo3
1Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy.
Physiologia plantarum
|August 11, 2025
概括
叶子生物刺激剂在变化的意大利露天条件下没有改善番茄产量或质量. 然而,一种配方在压力严重的年份增加了多和氨基酸等有益化合物,表明代谢效益.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 可持续农业 可持续农业
背景情况:
- 番茄 (Solanum lycopersicum L.) 在地中海地区的种植至关重要,但受到环境变化的威胁,导致氧化应激和降低产量/质量.
- 研究植物性蛋白质水解剂 (PHs) 和优化灌,以提高作物弹性.
- 叶子生物刺激剂提供了一种潜在的策略,以减轻压力和提高作物表现.
研究的目的:
- 评估两种叶子生物刺激剂MU (基于海藻和氨基酸) 和SR (富含的植物提取物) 对番茄作物的影响.
- 评估它们在意大利南部开放田地条件下对产量,水果质量和代谢概况的影响.
- 了解生物兴奋剂的疗效与年对年环境波动的关系.
主要方法:
- 两个番茄季 (2019-2020年) 在露天种植 (cv. "H1534") 在意大利的福吉亚.
- 两种生物刺激剂的叶子应用:MU和SR.
- 对产量特征,技术质量 (例如,Brix,烯) 和氨基酸概况 (必需和BCAA) 的分析.
主要成果:
- 两种生物刺激剂都没有显著影响整体产量或技术质量.
- 2019年至2020年间的环境变化导致了2020年产量 (-45%) 和质量参数 (例如,°Brix -41%,烯 -58%) 的大幅下降,这表明压力.
- 在压力下 (2020年),MU增加了多 (+27%) 和必需 (+42%) 和分支链氨基酸 (BCAA, +63%);SR也增加了BCAA (+30%).
结论:
- 叶子生物刺激剂主要影响番茄水果的代谢概况,而不是在变化的开放场条件下产量或质量特征.
- 生物刺激剂的性能与环境因素密切相关,这凸显了对特定环境评估的需要.
- 研究结果表明,生物刺激剂可以通过调节水果成分来增强应激抵抗力,从而支持可持续农业实践.
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