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  • 1 G. B. Pant University of Agriculture & Technology Department of Plant Physiology, College of Basic Sciences and Humanities Pantnagar U.S. Nagar. 263145 Uttarakhand India
  • 2 G. B. Pant University of Agriculture & Technology Department of Entomology, College of Agriculture Pantnagar U.S. Nagar. 263145 Uttarakhand India
  • 3 G. B. Pant University of Agriculture & Technology Department of Soil Science, College of Agriculture Pantnagar U.S. Nagar. 263145 Uttarakhand India
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A two-year field experiment was conducted to study the effect of three zinc levels 0, 20 kg ZnSO4 ha−1 and 20 kg ZnSO4 ha−1 + foliar spray of 0.5% ZnSO4 solution on plant height, leaf area, shoot biomass, photosynthetic rate and chlorophyll content in different wheat genotypes. Increasing zinc levels was found to be beneficial in improving growth and physiological aspects of genotypes. Soil application + foliar spray proved to be the best application in improving all the parameters. Zinc application brought about a maximum increment limit of 41.8% in plant height, 101.8% in leaf area, 86% in shoot biomass and 51.1% in photosynthetic rate irrespective of stages and year of study. A variation was found to occur among genotypes in showing responses towards zinc application and PBW 550 was found to be more responsive.

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