CHARACTER ASSOCIATION AND PATH COEFFICIENT ANALYSIS FOR YIELD COMPONENTS AND POD YIELD OF GROUNDNUT [Arachis hypogaea (L.)] IN SUDAN SAVANNA OF NIGERIA
Keywords:
Character Association, Path Coefficient Analysis, Yield Components, Pod Yield, GroundnutAbstract
A multi-locational field experiment was carried out during the 2018 raining season at the Teaching and Research Farm of Bayero University Kano and Bunkure town in Bunkure Local Government Area of Kano State, Nigeria to investigate the nature and extent of the associations of some yield attributing characters on pod yield of groundnut. The study consisted of six treatments laid out in a Randomized Complete Block Design (RCBD) replicated three (3) times using SAMNUT 24 as the test variety of groundnut. Results of the study indicated that haulm yield, kernel weight and biomass were highly significantly (P < 0.01) and positively correlated with pod yield at BUK with r values of 0.972, 0.891 and 0.708 respectively. Shelling percent was also significantly (P < 0.05) and positively correlated with pod yield at the same location with an r value of 0.646. 100 seed weight was positively but non-significantly correlated with pod yield (r = 0.445). At Bunkure, highly positive and significant (P < 0.01) correlations existed between haulm yield (r = 0.972), kernel weight (0.950) and 100 seeds weight (r = 0.776). Similarly, there were significant variations, at P < 0.05 between shelling percent and biomass with pod yield with respective r values of 0.536 and 0.696. Results also indicated that haulm yield gave the highest total contribution (334.493 %) to pod yield over and above kernel weight (101.53 %), 100 seeds weight (233.053 %), shelling percent (286.083 %) and biomass (236.60 %). The order of individual direct contributions to pod yield was kernel weight (310.28 %) > Shelling percent (109.24 %) > haulm yield (1.265 %) > biomass (0.0073 %) > 100 seeds weight (0.00 %). Results also indicated that the combination of haulm yield and kernel weight had the highest effect (33.565 %) on pod yield than all the other combinations. In conclusion the result indicated that haulm yield and kernel weight must be given highest priority for improved and sustainable production of groundnut in the Sudan Savanna region of Nigeria using SAMNUT 24 variety.
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