A two-year pot experiment was conducted to explore the potential of arbuscular mycorrhizal fungus (Glomus mosseae) symbiosis under drought stress on tolerant (WH 1025) and sensitive (WH 1105) wheat varieties. Drought stress was created by withholding (stop water irrigation) irrigation at jointing stage and heading stage in wheat. Mycorrhizal inoculation increased osmotic potential (ψ_s) of both the varieties at jointing and heading growth stages, respectively. Under drought condition, WH 1105 showed higher per cent reduction in RWC, chlorophyll content, and gas exchange traits (Pn, gS, and E) as compared to WH 1025 at both the growth stages. But, the mycorrhizal inoculation enhanced these traits in both varieties under control (irrigated) as well as drought stress condition. Higher decrease in Fv/Fm values was noted under drought stress, whereas the application of AMF resulted less reduction and the variety WH 1025 had more chlorophyll fluorescence than WH 1105 under mycorrhizal inoculation and stress treatments. It was also noticed that mycorrhizal colonization enhanced mean iWUE (Pn/E) by 3.6% in WH 1025 and 0.11% in WH 1105, respectively. In addition to the physiology traits, grain yield is the prime target under stress conditions and it was noted that mycorrhizal symbiosis gave beneficial results under control as well as stress conditions. AMF symbiosis significantly enhanced the drought tolerance index of both the wheat varieties. Correlation analysis further revalidates the beneficial role of AMF under stress condition and found that all physiological traits showed higher correlation with grain yield.

进行了为期两年的盆栽试验，以探索在干旱胁迫下丛枝菌根真菌 ( Glomus mosseae ) 对耐旱 (WH 1025) 和敏感 (WH 1105) 小麦品种的共生潜力。小麦在拔节期和抽穗期不灌（停水灌溉）会造成干旱胁迫。菌根接种增加渗透势（ψ _s) 分别在拔节和抽穗生长阶段的两个品种。在干旱条件下，与 WH 1025 相比，WH 1105 在两个生长阶段的 RWC、叶绿素含量和气体交换性状（Pn、gS 和 E）的降低百分比更高。但是，菌根接种在控制（灌溉）和干旱胁迫条件下增强了这些品种的这些性状。在干旱胁迫下，Fv/Fm 值下降幅度较大，而在菌根接种和胁迫处理下，施用 AMF 导致的下降幅度较小，并且品种 WH 1025 比 WH 1105 具有更多的叶绿素荧光。还注意到菌根定植在 WH 1025 和 WH 1105 中的平均 iWUE (Pn/E) 分别提高了 3.6% 和 0.11%。除了生理特征，粮食产量是压力条件下的主要目标，并且注意到菌根共生在控制和压力条件下产生了有益的结果。AMF共生显着提高了两个小麦品种的耐旱指数。相关性分析进一步验证了AMF在胁迫条件下的有益作用，发现所有生理性状都与谷物产量具有较高的相关性。