Effect of naphthalene acetic acid and mepiquat chloride on physiological components of yield in Bell Pepper (Capsicum annuum L.)

Gutam, Sridhar; Koti, R.V.; Chetti, M.B. and Hiremath, S.M. (2009) Effect of naphthalene acetic acid and mepiquat chloride on physiological components of yield in Bell Pepper (Capsicum annuum L.). Journal of Agriculture Research, 47 (1). pp. 53-61. ISSN 0368-1157

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Abstract

A field experiment was conducted to study the effect of foliar spray of Naphthalene acetic acid [NAA] (50, 100 and 150 ppm) and Mepiquat Chloride [MC] (500, 1000 and 1500) at 45 and 65 days after transplanting (DAT) on yield, physiological and biochemical parameters of bell pepper cv. Tarihal local. All the treatments significantly increased the fruit yield, number of fruits, average fruit weight, and number of seeds. The total chlorophyll, ascorbic acid and nitrate reductase activity were also increased. The fruit yield was significantly high with double spray of MC @ 1500 ppm at 45 DAT and at 65 DAT (159.89 g plant-1) followed by MC @ 1500 ppm at 45 DAT (156.49 g plant-1) compared to control. From economic point of view a single spray of MC @ 500 ppm at 45 DAT was more profitable compared to other treatments.

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