Influence of pre-harvest foliar application of growth regulators and micronutrients on mango cv. himsagar

The present experiment was carried out at horticultural research Station, Mohanpur, Nadia, in randomized block design to assess the effect of growth regulators (NAA and GA₃) and micronutrients (ZnSO₄ and borax) on fruit retention and fruit physico-chemical properties in mango cv. himsagar. Maximum fruit retention percentage (7.25%) as well as maximum number of fruits at harvest (790.17/tree) was recorded with Naa at 40 ppm and maximum yield (217.24 kg/tree) was obtained with GA₃ at 40 ppm and lowest fruit retention percentage and yield was recorded with control. Maximum length (9.28 cm), breadth (7.31 cm) and weight (283.38 g) were recorded with GA₃ at 40 ppm, whereas highest TSS, total sugars and non-reducing sugar content were recorded with ZnSO₄ at 1.5 per cent.