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VOL. 8, ISSUE 1 (2026)
Flowering, pod-formation and grain-yield of groundnut (Arachis hypogaea L.) in response to nitrogen fertilization in Jos-Plateau, North-Central Nigeria
Authors
L L Garba, O A T Namo
Abstract
A two-year experiment was carried out at the Potato Research farm in
Kuru, near Jos, to study the response of flowering, pod-formation and total
grain yield of groundnut (Arachis hypogaea L.) to nitrogen fertilisation in the
Jos-Plateau environment (09o44’N, 08o47’E; 1,293.2m above mean sea-level). The
treatment combinations, comprising three N-rates (0, 50 and 100 kg ha-1), two
dates of N-application (10 and 31 days after sowing) and two local varieties of
groundnut (Yar-Bajju and Yar-Kubacha), were arranged in the plots using the
randomised complete block design with three replications. The results showed
that mean number of days to flower-onset and 50% flowering as well as mean
number of pods and pops per plant, pod length, pod yield per plant, total pod yield
and total grain yields did not differ significantly with the rate and time of
N-application in both years. The variety Yar-Bajju flowered earlier than
Yar-Kubacha in both 2002 and 2003. Mean number of pods and pops as well as pod
yield per plant and total pod yield were higher in variety Yar-Kubacha than
Yar-Bajju in both years. Variety Yar-Bajju exceeded variety Yar-Kubacha in pod
length. Total grain yield was higher in variety Yar-Kubacha than in Yar-Bajju
in 2003. The interaction effects of N-rate and variety on mean number of pods
per plant and pod yield per plant were significant in 2003. The study
revealed that groundnut could be cultivated in the Jos-Plateau environment
without the application of nitrogen fertilizer.
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Pages:211-213
How to cite this article:
L L Garba, O A T Namo "Flowering, pod-formation and grain-yield of groundnut (Arachis hypogaea L.) in response to nitrogen fertilization in Jos-Plateau, North-Central Nigeria". International Journal of Agriculture and Plant Science, Vol 8, Issue 1, 2026, Pages 211-213
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