Ecology, Environment and Conservation Paper

Vol 23, Feb 2017 Suppl. Issue; Page No.(71-74)

EFFECT OF PLANT BIO-REGULATORS AND MICRO-NUTRIENT ON CHEMICAL CHARACTERISTICS OF LITCHI (LITCHI CHINENSIS SONN.)

Manoj Brijwal, D.C. Dimri, Arun Kishor, D.S. Mishra, V.K. Tiwari and M.S. Mer

Abstract

An experiment was conducted in Tarai region of Uttarakhand, India, to study the effect of various plant bio-regulators and micro-nutrient on chemical characteristics in four commercial litchi cultivars (‘Rose Scented’, ‘Calcuttia’, ‘Early Seedless’ and ‘Late Seedless’) during two successive years 2014 and 2015. The two years pooled data indicated the foliar application of plant bio-regulators and micronutrient significantly improved the chemical characteristics of litchi fruits. The highest TSS (21.23 °Brix), ascorbic acid (28.10 mg/ 100 g), total sugar (14.19%) and reducing sugar (11.66%) were recorded in boric acid (2000 ppm), while lowest TSS (18.64 °Brix), ascorbic acid (23.46 mg/100 g), total sugar (11.52%) and reducing sugar (9.35%) was estimated in control. The lowest titratable acidity (0.36%) was also recorded under the boric acid (2000 ppm). The highest value of non-reducing sugar (2.51%) was observed under GA3 (5 ppm), while the lowest (2.01%) was reported under putrescine (5 ppm) which was statistically at par with putrescine (10 ppm) and control. Most of the chemical characteristics were found superior in cultivars Rose Scented and Late Seedless as compared to the other litchi cultivars.

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