Abuja Journal of Agriculture and Environment (AJAE)

INFLUENCE OF SOWING DATES ON GROWTH AND YIELD OF COWPEA (Vigna unguiculata) (L) Walp) VARIETIES IN BADEGGI, NIGER STATE, NIGERIA
Author(s): Ndagana, M.K, Takim F.O. and Yakubu Adamu, Saidu A, Omonomo P.
Volume/Issue: Volume 3 , Issue 1 (2023)

ABSTRACT:

Field trial was carried out at the Research farm of National Agricultural Extension and ResearchLiason Services (NAERLS/ABU Badeggi Zone, to determine the influence of sowing dates ongrowth and yield of Cowpea varieties during 2020 and 2021 rainy season. The experiment was a 3 x4 factorial laid out in a split plot design with three replications. The main plot comprised the time ofsowing (June, July, August and September), while subplots comprised the varieties. IT8ID-1228-12 (Semi erect), IT81D-1228-14 (erect) and UAM14-126-L28 (climbing).Results indicated thatLeaf Area for 2020 and 2021 cropping seasons increased from 4-10 Weeks After Sowing (WAS) anddecreased at 12 WAS. Total dry weights increased with age upto 12 WAS. IT81D-1228-14 producedlonger pods of 16.78cm in 2020 and 16.64cm in 2021. Higher Number of dry pods/plant of 8.83pods in 2020 and 9.12 pods in 2021, number of seeds/plant of 114.9 seeds in 2020 and 119.8 seeds in2021, number of seeds/pod of 13.07 seeds in 2020 and 13.78 seeds in 2021, seed weight of 12.80g(2020) and 11.87 (2021), as well as seed yield of 420kgh-1 and 413 kg/ha-1 in 2020 and 2021respectively, compared with IT81D-1228-12 and UAM 14-126-L28, which produced shorter pods,lower number of dry pods, and number of seeds in the two copping seasons. Sowing in Juneproduced longer pods (17.68cm and 17.70cm), higher number of dry pods/plant (8.99 pods and9.38 pods) and higher number of seeds/plant (117.7 seeds and 124.6 seed), number of seeds/pod(13.31 seeds and 13.61 seeds), higher seed weight (13.00g and 11.77g), higher seeds yield (417.00kg/ha-1and 428.00kg/ha-1 in 2020 and 2021, respectively. Based on the result sowing cowpea inJune performed better, while IT81D-1228-14 performed better than other varieties in all thecharacters studies.

KEYWORDS:

Cowpea Varieties, growth, Sowing dates, yield