Effect of Zinc and Boron on Physical Parameters of Fruit, Seed and Quality of Jamun (syzygium Cumini Skeels)

The present investigation was aimed to study the effect of foliar application of zinc and boron on the physical parameters (fruit, seed) and quality of jamun (Syzygium cumini Skeels.) cv. Chintamani, at Regional Horticultural Research and Extension Centre, University of Horticultural Sciences Campus, Bengaluru during 2017-18 to improve the physical parameters and enhancing the fruit quality through foliar application of micronutrients in Jamun. The study revealed that the foliar spray of micronutrient combination of zinc and boron showed significant difference in fruit weight, fruit length, seed weight, reducing sugars, non reducing sugars and total sugars. Foliar spray of micronutrient combination of 0.50% ZnSO4 + 0.20% Boran (T9) had increased fruit weight (12.88 g), fruit length (25.88 mm), seed weight (2.55 g) and reducing sugar (6.54%). Maximum non reducing sugar (1.72%) and total sugars (8.16%) was obtained in T5 treatment (micronutrient application of 0.20% Boron) compared to other treatment combinations.