Vol. 12, Issue 6 (2023)

Author(s):
KC Verma, Harphool Singh, Ramu Meena, Mujahid Khan, SK Attar, CL Khatik, SC Mahala and SR Dhaka

Abstract:
A field experiment was carried out in the rainy seasons of 2018, 2019 and 2020 in order to determine the correlation coefficient and path analysis between grain yield and growth parameters, weed and yield attributes of cowpea (Vigna unguiculata) as influenced by weed management practices under rainfed condition, in addition to the percent contribution for each independent variables on the variable that is dependent (yield). There are ten weed management practices used in the treatments. A randomize block design with three replications was used to set up the experiment. Grain yield correlated positively and significantly with growth and yield attributes while weed density, weed dry matter and weed index were highly negatively correlated. The direct and indirect contributions results indicated that number of seeds/pod and seed index had the highest direct contribution while plant height had the least direct effect in the study. The percent individual contribution to grain yield showed that number of seeds/pod (59.39%) made highest contribution followed by seed index (18.50%) while number of branches/plant (1.15%) made a least contribution. The combined contribution of number of seeds/pod via seed index (61.72%) was the highest positive contribution while number of branches/plant via number of pods/plant made the least negative contribution in combined study during 2018-2020.