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Sep 7, 2023Keywords:
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Effect of GDD on the Growth and Yield of Groundnut in a Forest-Savanna Transition Zone of Nigeria
Abstract
Temperature as a limiting factor to groundnut production had affected groundnut economic value in a forest-savannah transition of Nigeria. A field trial was carried out to evaluate the effect Growing Degree Day (GDD) of groundnut intercropped with maize at Abeokuta during the early 2018 cropping season. The experiment was arranged in 6×3 factorial and laid out in a randomized complete block design with three replicates. Experimental factors were the cropping system of sole planting of three groundnut cultivars SAMNUT-24 (GNUT1), SAMNUT-25 (GNUT2), SAMNUT-26 (GNUT3) and their intercrop combinations with maize (SAMMAZ-15), GDD was estimated on emergence, flowering, pod formation, seed formation, and maturity phases. The results of GDD showed that intercrop significantly influence (p≤0.05) growing degree days (GDD) of groundnut at emergence (2225.50 ºday) and flowering (2700.96 ºday) phases and mulching was significant (p≤0.05) at seed formation phase, intercrop showed significant influence on GDD and yield of Groundnut
