Results 11 to 20 of about 134,054 (334)

Identification of sources of resistance in cowpea lines to Macrophomina root rot disease in Northern Ghana

Heliyon, 2022
Macrophomina root rot disease (MRRD) caused by Macrophomina phaseolina is an emerging threat to the profitable cowpea production in northern Ghana.Recommended control methods including the use of fungicides are ineffective and expensive for resource poor
Salim Lamini, Francis Kusi, Eric William Cornelius, Agyemang Danquah, Patrick Attamah, Zakaria Mukhtaru, Frederick Justice Awuku, Emmanuel Yaw Owusu, Mavis Acheampong, Gloria Mensah   +9 more
doaj   +1 more source

Individual aerosol particles from biomass burning in southern Africa: 2. Compositions and aging of inorganic particles [PDF]

, 2003
Individual aerosol particles collected over southern Africa during the SAFARI 2000 field study were studied using transmission electron microscopy and field- emission scanning electron microscopy.
Buseck, Peter R., Hobbs, Peter V., Li, Jia, Pósfai, Mihály   +3 more
core   +1 more source

Cultivar and insecticide spraying time effects on cowpea insect pests and grain yield in northern Ghana

Annals of Agricultural Sciences, 2019
Insecticide application is the recommended practice for control of insect pests on cowpea (Vigna unquiculata (L) Walp). However, these have negative effects on humans and the environment, apart from being costly for resource-poor farmers.
F. Kusi, J.A. Nboyine, M. Abudulai, A. Seidu, Y.R. Agyare, I. Sugri, M. Zakaria, R.K. Owusu, S.K. Nutsugah, L. Asamoah   +9 more
doaj   +1 more source

Assessment of Tuber Yield Stability and Adaptability of Some Elite Yam Genotypes in the Guinea Savannah Ecology of Northern Ghana

International Journal of Agronomy, 2021
Studies were conducted to determine tuber yield stability and adaptability of some elite yam (Dioscorea sp.) genotypes in northern Ghana. Ten elite exotic yam genotypes alongside one locally cultivated farmer-preferred variety, Laribako, were grown in ...
Joseph Adjebeng-Danquah, Kwabena Acheremu, Emmanuel Boachie Chamba, Freda Ansaah Agyapong, Alhassan Sayibu   +4 more
doaj   +1 more source

Genetic control of earliness in cowpea (Vigna unguiculata (L) Walp)

Heliyon, 2022
Global climate change is expected to further intensify the already harsh conditions in the dry savannah ecological zones of sub-Saharan Africa, posing serious threats to food and income security of millions of smallholder farmers.
Emmanuel Yaw Owusu, Francis Kusi, Alexander Wireko Kena, Richard Akromah, Patrick Attamah, Frederick Justice Awuku, Gloria Mensah, Salim Lamini, Mukhtaru Zakaria   +8 more
doaj   +1 more source

Genetic variability, heritability and correlation analysis among maturity and yield traits in Cowpea (Vigna unguiculata (L) Walp) in Northern Ghana

Heliyon, 2021
Experimental studies were conducted to evaluate 16 advanced breeding lines of cowpea (Vigna unguiculata (L) Walp) for genetic variability, heritability and correlation between maturity and yield related traits.
Emmanuel Y. Owusu, Benjamin Karikari, Francis Kusi, Mohammed Haruna, Richard A. Amoah, Patrick Attamah, Gloria Adazebra, Emmanuel K. Sie, Memunatu Issahaku   +8 more
doaj   +1 more source

Integrated peanut aflatoxin management for increase income and nutrition in Northern Ghana

Cogent Food & Agriculture, 2017
Aflatoxins contamination in peanut seeds remains a major challenge in Ghana. This study evaluated aflatoxin levels in peanut samples from farmer storage units, and participatory on-farm research trials.
Issah Sugri, Moses Osiru, Mumuni Abudulai, Mutari Abubakari, Yahaya Asieku, Salim Lamini, Mukhtaru Zakaria   +6 more
doaj   +1 more source

Postharvest losses and mitigating technologies: evidence from Upper East Region of Ghana

Sustainable Futures, 2021
Post-harvest losses (PHL) have been identified as a crucial challenge to achieving food and nutrition security in sub-Saharan Africa. Access to reliable data and standardized methods of estimating PHL are a twin barrier to developing long term mitigation
Issah Sugri, Mutari Abubakari, Robert Kwasi Owusu, John Kamburi Bidzakin   +3 more
doaj   +1 more source

Seed production, infestation, and viability in Acacia tortilis (synonym: Vachellia tortilis) and Acacia robusta (synonym: Vachellia robusta) across the Serengeti rainfall gradient [PDF]

, 2017
Tree recruitment in savannas proceeds in multiple stages characterized by successive filters occurring at the seed and seedling stages. The “demographic bottleneck” hypothesis suggests that such filters ultimately restrict tree density and prevent trees ...
Anderson, T. Michael, Holdo, Ricardo M., Morrison, Thomas, Rugemalila, Deusdedith M.   +3 more
core   +1 more source

Stability of Sources of Resistance to Cowpea Aphid (Aphis craccivora Koch, Hemiptera: Aphididae) across Major Cowpea Production Zones in Ghana

International Journal of Agronomy, 2020
Aphids (Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. The use of resistant cultivars is among the best management option for this pest, but the success of this strategy is influenced by the stability of the resistant ...
Francis Kusi, Jerry A. Nboyine, Patrick Attamah, Justice F. Awuku, Issa Sugri, Mukhtaru Zakaria, Salim Lamini, Gloria Mensah, Victoria Larweh, Robert K. Owusu, Richard Y. Agyare, Julius Yirzagla, Michael Asante, Joseph K. Laary   +13 more
doaj   +1 more source