JASMONATE FOLIAR SPRAY INDUCED VEGETATIVE GROWTH AND PIGMENT COMPOSITION IN Vigna radiata L. WILCZEK
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The study was conducted to determine the effect of foliar Jasmonic acid (JA) application on vegetative growth and photosynthetic pigment composition of Vigna radiata (L.)Wilczek. JA was applied at five different concentrations (2ppm, 4ppm, 6ppm, 8ppm 10ppm) to 15 days old Vigna seedlings. Growth parameters such as shoot and root length, shoot and root fresh weight and dry weight and biochemical constituents such as chlorophyll a, b, total chlorophyll and carotenoid content were recorded in treated and control plants. All the five concentrations of JA enhanced the overall growth and biochemical constituents. The maximum increase in plant growth was found to be 8ppm. Application of JA also promoted the photosynthetic efficiency of Vigna radiata as evidenced in the photosynthetic pigment content. Compared to chlorophyll a, chlorophyll b was found to synthesize more which could be due to a change in the stoichiometry of PS II to PS I. Thus, the present work confirms the promontory effects of JA on overall growth and pigment constituents in Vigna radiata.
[M. Asma and K. Lingakumar (2015); JASMONATE FOLIAR SPRAY INDUCED VEGETATIVE GROWTH AND PIGMENT COMPOSITION IN Vigna radiata L. WILCZEK Int. J. of Adv. Res. 3 (Jan). 0] (ISSN 2320-5407). www.journalijar.com
