Effect of growth regulators and micronutrients spray on  physico-chemical properties of litchi (Litchi chinensis)

Vikramaditya Priyadarshi; Debashish Hota

doi:10.48165/

Authors

Vikramaditya Priyadarshi Department of Fruit Science, Dr YSPUH&F, Nauni, Solan, Himachal Pradesh, India
Debashish Hota Department of Fruit Science, IGKV, Raipur, Chhattisgarh, India

DOI:

https://doi.org/10.48165/

Keywords:

Boric acid, CPPU, Growth regulators, Micronutrient, ZnSO4

Abstract

The experiment was conducted to find out the effect of plant growth regulator and micronutrients on physico chemical properties of litchi (Litchi chinensis Sonn.) at the Regional Horticulture Research and Training Station, Dhaulakuan, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, dring 2014-15. The experiment consisted of 19 treatments with three replications laid out in Randomized Block Design. The growth regulators and micronutrients applied were GA3 (T1 = 25 ppm, T2 = 50 ppm, T3 = 75 ppm), CPPU (T4 = 5 ppm, T5 = 10 ppm, T6 = 15 ppm), ZnSO4 (T7 = 0.25%, T8 = 0.50%, T9 = 0.75%), boric acid (T10 = 0.25%, T11 = 0.50%, T12 = 0.75%), GA3 + CPPU (T13 = 25+5 ppm, T14 = 50+5 ppm, T15 = 75+5 ppm), Boric acid + ZnSO4 (T16 = 0.25+0.50%, T17 = 0.50+0.50%, T18 = 0.75+0.50%) and T19 the control. The growth regulators and micronutrients significantly improved all physico-chemical properties (fruit size, fruit weight, fruit volume, fruit pulp content, pulp percentage, minimum peel percentage, pulp: peel ratio, pulp: stone ratio, peel colour and juice percentage) of fruit. Of which T2 (GA3 50 ppm) increased fruit size, fruit weight and volumes, Minimum peel percentage, pulp: peel ratio and peel colour were highly affected by boric acid alone or in combination with ZnSO4.

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