EFFECT OF CESTRUM AURANTIACUM LEAF EXTRACT AND KNO3 ON SEED HEALTH OF BLACK GRAM

Author(s): Subhojit Ojha*, Samir Halder and Sonali Dey

Abstract: An investigation was carried out to analysed seed health of black gram (Vigna radiata L.) by using Cestrum aurantiacum Lindl. leaf extracts and KNO3 by some reliable physiological and biochemical parameters. It was found from the experimental results that the Cestrum leaf extracts (1:1 and 1:2) exert inhibitory effect whereas KNO3 (100 and 500 µg ml-1) exert promotive effect on black gram seeds. The extracts of Cestrum reduced the percentage germination and increased T50 values. KNO3 treated black gram seeds shows promotive effect on dehydrogenase activity and it was concentration dependent. Cestrum leaf extracts shows profuse leaching of amino acids and enhanced soluble carbohydrate contents. It was also found that leaf extract treated black gram seeds contain reduced amount of insoluble carbohydrates and nucleic acids in comparison to control.

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