EFFECT OF PHYTOHORMONES ON GROWTH, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.) ACCESSIONS
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Date
2019-08-30
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
Tomato is one of the most popular and widely grown vegetable around the world.
In India, it ranks second among vegetables next to potato in terms of area and production.
The effects of phytohormones Gibberellic acid and Jasmonic acid on eight tomato
accessions and two check varieties were tested on parameters such as growth, yield and
quality. Plants were raised in main field and sprayed with GA3 and JA during 20 and 40
DAT in three different concentrations (GA3- 25, 50, 100 PPM and JA 0.1, 0.25, 0.5 mmolL1
). GA3 at 25 PPM improved characters such as locule number and number of fruits per
cluster and 50 PPM of GA3 improved characters such as plant height, number of branches,
fruit length and width, fruit weight, number of fruits per plant, total fruit yield, TSS,
Vitamin C, carotenoids and lycopene content. JA application at 0.1mmolL-1
improved the
characters such as number of branches, fruit width, total fruit yield per plant and pulp
thickness. JA application at 0.25mmolL-1
improved the biochemical traits such as
carotenoids and lycopene content. Thus, GA3 at 25 and 50 PPM and JA at 0.1 and 0.25
mmolL-1
, can be used to improve the yield nutritional quality of tomato.