Effect of Zinc and Boron on Growth, Yield and Quality of Guava (Psidium guajava L.) cv. L-49

A field experiment was conducted during 2020-2021 at Horticulture Research Farm-1, BBAU, Lucknow on 15- year- old guava plants, Studies the Effect of Zinc and Boron Growth, Yield Quality Guava (Psidium guajava L.) cv. L-49”, revealed Number fruits per tree, tree (kg), Total chlorophyll content (mg/g), Average weight fruit (g), Volume (cc), TSS ( 0Brix), Acidity (%), Ascorbic acid in pulp (mg/100g), Non reducing sugar Reducing were significantly affected by foliar application sulphate boron. All parameters best performed under Treatment nine (T9) where dose (Borax 0.2%+ Sulphate 0.2%) applied as spray.