米耐药性的反应基于对米爆炸的验证,对高CO2度和温度的反应2
Zhao-Wei Wei1, Ruo-Gu Chen1, Nan Yin1
1School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 11, 2023
概括
高温会对大米 (Oryza sativa) 的抗压能力产生负面影响,尤其是在延长-启动阶段. 加高的二氧化碳和温度也降低了耐药性,其中一种品种对二氧化碳的敏感性增加.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 环境科学 环境科学
背景情况:
- 米 (Oryza sativa) 的产量安全性受到其抗压能力的显著影响.
- 大气二氧化碳度和温度上升对大米抗压力的影响仍然不充分理解.
研究的目的:
- 研究二氧化碳和温度升高对两种大米品种 (南京9108和金xiangyu I) 抗压力的影响.
- 分析二氧化碳和温度对大米抗压力指标和疾病易感性的相互作用影响.
主要方法:
- 现场开放式室内实验使用二氧化碳和温度自动控制平台进行.
- 处理包括环境条件 (CK),升高的二氧化碳 (C),升高的温度 (T) 和联合升高的二氧化碳和温度 (CT).
- 测量了关键的生理指标 (超氧化脱酶活性,二氧化,黄醇,黄甲,可溶糖,素,可溶蛋白) 和尖爆发病的发病率.
主要成果:
- 升高的温度 (T) 在延长启动阶段显著降低了两种品种的米抗压力指数 (RSRI).
- 升高的CO2 (C) 和联合升高的CO2和温度 (CT) 处理也显著降低了金祥一区的RSRI.
- 该RSRI有效地解释了尖部爆发病的变异,表明其在评估抗压能力方面的有用性.
结论:
- 高温对关键生长阶段的米品种的抗压能力产生不利影响.
- 升高的二氧化碳和温度之间的相互作用影响到米的抗压力.
- 与南京9108相比,金xiangyu I大米品种对二氧化碳度升高的敏感性更高.
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