Effect of plant bio-regulators on quality and yield of litchi (Litchi Chinensis Sonn.) Cv. Rose Scented

Abstract

The experiment was conducted to study the effect of Plant bio-regulators viz., Gibberellic Acid (GA3), Naphthalene Acetic Acid (NAA) and Benzyl Adenine (BA) on fruit drop, cracking, fruit yield and physico-chemical properties of litchi cv. Rose Scented. The plants were sprayed with different concentrations of GA3 (50, 30 and 10 ppm), BA (50, 30 and 10 ppm), and NAA (50, 30 and 10 ppm), thrice (after fruit set, 15 days after Ist spray and 15 days after IInd spray). Application of three sprays of GA3 @ 50 ppm was proved to be most effective in minimizing fruit drop and fruit cracking and improving the physico-chemical properties and yield of litchi.