PJB-2022-409
EFFECT OF SALICYLIC ACID ON TOMATO PLANT GROWTH AND PRODUCTIVITY UNDER THE CHANGING CLIMATIC CONDITIONS
Israr Ali
Abstract
Tomato is an important vegetable crop all over the world because of its nutritional and medicinal values. Its demand is increasing while its production is adversely affected by the climate change. There is a need to adopt such strategies that can cope with the changing climate and can improve the tomato fruit production under changing climatic conditions. The present study was designed to evaluate the effect of salicylic acid on tomato plants and its produce. During this study the impact of salicylic acid was evaluated on tomato plants grown under the Chinese solar greenhouse during the two growing seasons 2021 and 2022. Different salicylic acid concentrations (0 mM, 0.5 mM, 0.75 mM and 1 mM) were sprayed on tomato plants at an interval of 14 days from transplanting to first harvest stage. Its effect was studied on both morphological and biochemical properties on tomato plants. During this study the morphological characters such as plant height, number of flowers, number of fruits and biochemical characters such as TSS of fruit, titratable acidity of fruit juice, leaf relative water content and sugar content were determined. The findings of the study revealed that the 0.75 mM concentration of SA has a positive effect on both the traits i.e morphological and biochemical characters of tomato. 0.75 mM concentration of SA has significant effect on the tomato plant and improved the morphological and biochemical characters of plants. Thus, the 0.75 mM concentration of SA is found optimal for improving the quality and quantity of tomato fruits.
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