2024, Vol. 7, Special Issue 10

author(s)
K Reddemma, M Srinivasa Reddy and PV Ramesh Babu

abstract
A field experiment was conducted at the College Farm, Agricultural College, Mahanandi of Acharya N.G. Ranga Agricultural University during the period from October, 2017 to January 2018 to evaluate the Crop Growth Rate, Relative Growth Rate and Net Assimilation Rate of Rabi blackgram (Vigna mungo L.) under different sowing windows. The experimental site was sandy loam and it was neutral in reaction with a P^H of 7.30, Ec of 0.20 ds m^-1. The experiment comprised four blackgram varieties viz., TBG-104, LBG-787, GBG-1 and PU-31 and four sowing dates viz., 1^st fort night of October, 2^nd fort night of October, 1^st fort night November and 2^nd fort night November. The experiment was laid out in randomized block design with factorial concept (FRBD) having sixteen treatments and three replications. Results showed that varieties and dates of sowings significantly influenced the parameters. The growth attributing experimentation characters such as plant crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR) was found highest in PU-31 and lowest in LBG-787. With regard to sowing windows, the higher as well as lower values of these parameters were observed with sowing 1^st fort night of October and 2^nd fort night of November, respectively.