Effect of NAA and zinc sulphate application on fruit drop, yield and quality attributes of mulberry (Morus alba L.)

Abstract

The investigation entitled “Effect of NAA and zinc sulphate application on fruit drop, yield and quality attributes of mulberry (Morus alba L.)” was conducted during 2018-19. The foliar application of different concentrations of zinc sulphate (0.2, 0.4 and 0.6%) and NAA (20, 40 and 60 ppm). Significantly improved in fruit set and fruit retention (per cent). The maximum was recorded from the trees treated with zinc sulphate @ 0.4 per cent and NAA @ 60 ppm. Significantly increase in yield parameters and total yield per tree was observed in the fruits harvested from the trees treated with zinc sulphate (0.4% and 0.6%) and NAA @ 60 ppm. Significantly improved in quality parameters was observed in the fruits harvested from the trees treated with zinc sulphate @ 0.4 per cent and NAA @ 40 ppm, while acidity was minimum with zinc sulphate @ 0.4 per cent and NAA @ 40 ppm.