Studies on the Effect of Foliar Spray of Micronutrients on Physical Parameters of Guava (Psidium guajava L.) cv. Allahabad Safeada

A field experiment was conducted on Horticulture Research Farm –II of Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University, Lucknow, India, during the academic year of 2019-20. to study the effect of micronutrient spray on the physical parameters of guava cv. Allahabad Safeda on 10 - year- old guava plants that fruit set (68.80 %) fruit retention (65.89%) fruit length (7.59 cm), fruit width (6.75 cm), fruit weight (136.8 g.) fruit volume (148.13cm3), specific gravity(0.92), fruit yield per plant (42.20kg/plant), and yield (q/ha) were obtained maximum with the foliar spray of zinc sulphate T3 (0.4%) and borax T9 (0.4%) respectively.