The effect of foliar spray of Zn, Cu and B on physico-chemical parameters of sweet orange (Citrus sinensis L.) cv. Mosambi

Abstract

The present investigation was conducted at the farm of Department of Fruit Science, VCSG Uttarakhand University of Horticulture and Forestry Bharsar, Pauri Garhwal Uttarakhand during 2016-17. The experiment was laid out in Randomized Complete Block Design comprising ten treatments and three replications. Based on the result obtained from the present investigations, it was observed that the highest juice percentage (28.16%), total soluble solids (10.490Brix), ascorbic acid (38.52 mg/100 ml), reducing sugar (4.95%), non-reducing sugar (1.95%), total sugar (6.90and minimum titratable acidity (0.89%), number of seeds (8.10%) and peel thickness (4.20%) were observed with T7 treatment [ Zn (0.5%) + B (0.3%) + Cu (0.7%)]. The above mentioned treatment of micronutrients was found most effective in terms of enhancement of fruit quality attributes of sweet orange and could be recommended to the stakeholders and farmers.