Studies on the effect of 'planofix' application on pepper (Piper nigrum L.)

Abstract

A trial was conducted at the Pepper Research Station, Panniyur during 1975 and 1976 with 'Planofix', a proprietary product containing the sodium salt of alpha N. A. A : to see whether the application of the chemical could control spike shedding in pepper caused by physiological disturbances. The chemical was tried at three concentrations of 90, 120 and 150 ppm. Though the application of the chemical was found to be ineffective in controlling spike shedding, it significantly increased the volume and weight of pepper berries, especially at the concentration of 90 ppm. The recovery percentage of dry pepper from green, was slightly increased.