UV-B IRRADIANCE INDUCED DELETERIOUS EFFECTS ON THE NET PRIMARY PRODUCTIVITY AND COUNTERACTED BY SOME PLANT GROWTH REGULATORS (PGRs), IN BRASSICA COMPESTRIS PT-303 (BROWN SARSON)

ABSTRACT: The aim of present study to be evaluated the appropriate concentrations of plant growth regulators i.e. M) in crop of Brassica compestris PT-303 respectively. Therefore, for the field studies, only these concentrations were taken to assess for the studies of net primary productivity of Brassica compestris PT-303 (Brown sarson)