在气候变化的背景下,为尼泊尔的粮食安全而保护大米作物免受爆病的影响
Ram Bahadur Khadka1, Hira Kaji Manandhar2, Sundar Shrestha3
1Nepal Agricultural Research Council, National Plant Pathology Research Centre, Lalitpur, Nepal.
Frontiers in plant science
|July 10, 2025
概括
由于气候变化,尼泊尔的爆病由Pyricularia oryzae引起,正在增加. 综合管理策略对于可持续的水生产和粮食安全至关重要.
科学领域:
- 植物病理学 植物病理学
- 农业科学 农业科学
- 气候变化的影响 气候变化的影响
背景情况:
- 由Pyricularia oryzae (Magnaporthe oryzae) 引起的爆是尼泊尔大米生产和粮食安全的重大威胁.
- 喜马拉雅地区是爆发性真菌多样性的热点,导致耐药性突破性病变型的快速演变.
- 最近的流行病,比如2022年在奇特旺的子爆炸,突出显示了大米品种的脆弱性和疾病压力的增加.
研究的目的:
- 审查尼泊尔40年来对大米炸药的研究和开发.
- 分析历史天气模式及其与大米爆炸发生率和严重程度的相关性.
- 确定新出现的问题,并提出对尼泊尔大米爆炸的综合管理策略.
主要方法:
- 40年来研究和开发数据的文献综述.
- 对历史天气模式和气候数据的分析.
- 通过实证观察和实地实验,绘制尼泊尔全国大米爆炸发生率和严重程度的地图.
主要成果:
- 在尼泊尔,大米爆炸压力正在加剧.
- 变化的天气模式越来越有利于大米爆发流行病,特别是子爆发.
- 喜马拉雅山脉爆发真菌的多样性有助于克服宿主抵抗力.
结论:
- 通过分子和基因组工具开发持久,抗气候和抗爆米品种至关重要.
- 综合管理策略,包括疾病预测,明智的杀菌剂使用,生物控制和优化农业实践,对于可持续的水爆管理至关重要.
- 调整种植时间,改善水和营养管理是可持续爆发控制的关键组成部分.
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