Soil Drenching and Foliar Application of Nutrient based Biostimulants on Growth, and Morphometric Traits of Tomato under Water Limited Condition

Author: M. Abirami, P. Jeyakumar, V. Ravichandran and N. Sakthivel

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Abstract

Water deficit is one of the most common a biotic stress factors affecting crop production globally. Indiscriminate usage of agrochemicals and fertilizers in vegetable production leads to many ecological issues. To minimize the excessive usage of chemical fertilizers, plant based growth promoting products like biostimulants are extensively used in the present days. Nutrient based biostimulants represents a group of environmental practices intended to improve crop stress tolerance and to mitigate the adverse effects on crop productivity. In this study, foliar application of Orthol-O2, a biostimulant based on Ortho-silicic acid (OSA) and soil drenching of Talete 20, a seaweed extract (SE) were studied on tomato plants grown under water limited condition. The plants were exposed to water limited condition (80% of the water given to treatment plants) after crop establishment stage. The response of biostimulants was recorded at 45-55 days after transplantation (DAT) and 55-65 DAT intervals.

Keywords

Tomato, drought, biostimulants, Ortho-silicic acid, growth, and morphometric traits