The impact of planting dates on the performance of soybean varieties [Glycine max (L.) Merr.] in the Nigerian Savannas

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dc.creatorEseigbe, O.B.
dc.creatorKamara, A.
dc.creatorMiko, S.
dc.creatorOmoigui, L.O.
dc.creatorSolomon, R.
dc.creatorAdeleke, M.A.
dc.creatorTofa, A.I.
dc.creatorBebeley, J.
dc.date2024
dc.date2024-10-18T07:12:09Z
dc.date2024-10-18T07:12:09Z
dc.date.accessioned2026-06-27T16:04:55Z
dc.descriptionIncreasing delays in the onset of the rainy season and extended dry spells in the Nigerian savannas are complicating the determination of optimal planting dates for rain-fed crops, which increases risks for farmers. This study evaluated the impact of planting dates on soybean [Glycine max (L.) Merr.] performance to identify optimal planting dates for different soybean varieties in two agroecological zones (AEZs) of Nigeria. The study involved six planting dates (15 June, 22 June, 29 June, 6 July, 13 July, and 20 July) and three soybean varieties (TGX-1835-10E, TGX-1951-3F, TGX-1904-6F). Results showed significant differences in growth and yield parameters based on location, variety, and planting date. In the Sudan savanna (SS), AEZ at BUK-Kano, optimal yields (>1500 kg ha−1) were achieved when planting TGX-1835-10E and TGX-1951-3F from 15 to 29 June and TGX-1904-6F on 15 June. Planting beyond 29 June reduces yields by 12–55% for TGX-1835-10E and 27–63% for TGX-1951-3F. For TGX-1904-6F, planting after 15 June reduces yields by 27–90%. In the Northern Guinea savanna (NGS) AEZ at Zaria, optimal yields (>1500 kg ha−1) were obtained when planting TGX-1835-10E and TGX-1951-3F from 15 June to 6 July, and TGX-1904-6F between 15 to 29 June. Delaying planting beyond these dates significantly reduced yields by 18–31% for TGX-1835-10E and 12–20% for TGX-1951-3F and 10–41% for TGX-1904-6F.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/155414
dc.identifier.urihttp://hdl.handle.net/123456789/121970
dc.languageen
dc.publisherMDPI
dc.rightsOpen Access
dc.sourceEseigbe, O.B., Kamara, A.Y., Miko, S., Omoigui, L.O., Solomon, R., Adeleke, M.A., ... & Bebeley, J.F. (2024). The impact of planting dates on the performance of soybean varieties [Glycine max (L.) Merr.] in the Nigerian Savannas. Agronomy, 14(10): 2198, 1-18.
dc.subjectagroecology
dc.subjectplanting date
dc.subjectproductivity
dc.subjectsoybeans
dc.subjectvarieties
dc.subjectgrain legumes
dc.titleThe impact of planting dates on the performance of soybean varieties [Glycine max (L.) Merr.] in the Nigerian Savannas
dc.typeJournal Article

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