Impact of fertilizer management and chemical nipping on physiological traits and yield of rainfed horsegram (Macrotyloma uniflorum)

Abstract

A field experiment was conducted to study the influence of fertilizer management and chemical nipping on the yield of horsegram during rabi 2019-20. The treatment consist of three levels of Fertilitizer management [100% Recommended Dose of Fertilizer (RDF), 100% RDF + TNAU Micronutient (MN) mixture 5 kg / ha as Enriched Farm Yard Manure (EFYM), Farmers practice] and four levels of chemical nipping [chlormequat chloride 250 ppm @ 40 DAS, chlormequat chloride 250 ppm @ 50 DAS, chlormequat chloride 250 ppm @ 40 DAS & 50 DAS, No nipping] thereby making 12 treatment combinations replicated thrice in factorial randomized block design. The physiological traits viz., Proline and Relative water content were recorded. Proline and relative water content was found to be higher in 100% RDF along with TNAU MN mixture 5 kg/ha as Enriched FYM and chlormequat chloride 250 ppm @ 40 & 50 DAS which ultimately helps plant to withstand in drought and improve the yield.