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<p>The present investigation was carried out to study the influence of water and nutrient application modules in a two factor completely randomized design consisting of two factors i.e., water and nutrient application modules which were: I1: 60% of well-watered condition (WWC); I2: 80% of WWC; I3: 100% of WWC; F1: 75% NPK + nano DAP + nano Si; F2: 75% NPK + nano DAP + nano Zn; F3: 75% NPK + nano DAP + nano Si + nano Zn; F4: 50% NPK + nano DAP + nano Si; F5: 50% NPK + nano DAP + nano Zn; F6: 50% NPK + nano DAP + nano Si + nano Zn; F7: 100% NPK. Limited water application regimes (I1 and I2) resulted in considerable drought stress in wheat with significantly elevated antioxidant enzyme activity, decline in photosynthetic pigment content and cell membrane stability index (CMSI) for wheat. However, for the input combinations application of 75% NPK + nano DAP + nano Si + nano Zn at 100% WWC was found to be responsible for the significant increase in photosynthetic pigments (Chl a, Chl b and carotenoid), relative leaf water content and CMSI and the grain yield levels (5.93 and 6.03&#xa0;g plant<sup>−1</sup> during the winter seasons of 2022–23 and 2023–24, respectively).</p> Graphical abstract <p></p>

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Synergistic Application of Nano-micro and Macronutrients in Wheat Alleviated Drought Stress with Enhanced Physiological Response and Anti-oxidant Enzyme Activity

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Garima Chauhan,
  • Anil Kumar,
  • Tarun Sharma,
  • Akashdeep Singh,
  • Bharat Bhushan Rana,
  • Sandeep Manuja

摘要

The present investigation was carried out to study the influence of water and nutrient application modules in a two factor completely randomized design consisting of two factors i.e., water and nutrient application modules which were: I1: 60% of well-watered condition (WWC); I2: 80% of WWC; I3: 100% of WWC; F1: 75% NPK + nano DAP + nano Si; F2: 75% NPK + nano DAP + nano Zn; F3: 75% NPK + nano DAP + nano Si + nano Zn; F4: 50% NPK + nano DAP + nano Si; F5: 50% NPK + nano DAP + nano Zn; F6: 50% NPK + nano DAP + nano Si + nano Zn; F7: 100% NPK. Limited water application regimes (I1 and I2) resulted in considerable drought stress in wheat with significantly elevated antioxidant enzyme activity, decline in photosynthetic pigment content and cell membrane stability index (CMSI) for wheat. However, for the input combinations application of 75% NPK + nano DAP + nano Si + nano Zn at 100% WWC was found to be responsible for the significant increase in photosynthetic pigments (Chl a, Chl b and carotenoid), relative leaf water content and CMSI and the grain yield levels (5.93 and 6.03 g plant−1 during the winter seasons of 2022–23 and 2023–24, respectively).

Graphical abstract