Results 1 to 10 of about 119,922 (306)

Pleistocene Hypothesis – Moving Savanna Perceptual Preference Hypothesis Beyond Savanna [PDF]

Frontiers in Psychology, 2022
We provide an extension of the Savanna perceptual preference hypothesis (“Savanna Hypothesis”), supposing that interaction with landscapes offering survival advantage for human groups during evolution might have gradually evolved to permanent landscape preferences.
Rathmann, Joachim, Korpela, Kalevi, Stojakowits, Philipp   +2 more
openaire   +5 more sources

Effects of insecticides and cultivars on panicle-feeding insect pest infestations and grain yield of sorghum (Sorghum bicolor (L.) Moench) in northern Ghana

Bulletin of the National Research Centre, 2021
Background Panicle-feeding insects are a challenge in sorghum (Sorghum bicolor (L.) Moench) cultivation but most farmers do not protect the crop. Here, the effects of pest management in different sorghum cultivars on grain yields and the financial ...
Jerry A. Nboyine, Kenneth Opare-Obuobi, Iddrisu Yahaya, Benjamin K. Badii, Francis Kusi, Asieku Yahaya, Gloria Adazebra   +6 more
doaj   +1 more source

Assessment of the optimal frequency of insecticide sprays required to manage fall armyworm (Spodoptera frugiperda J.E Smith) in maize (Zea mays L.) in northern Ghana

CABI Agriculture and Bioscience, 2022
Background Insecticide use is an important component of integrated pest management strategies developed for fall armyworm (FAW), Spodoptera frugiperda J.E Smith, control in maize in many African countries.
Jerry A. Nboyine, Ebenezer Asamani, Lakpo K. Agboyi, Iddrisu Yahaya, Francis Kusi, Gloria Adazebra, Benjamin K. Badii   +6 more
doaj   +1 more source

Participatory On-Farm Evaluation of Improved Groundnut Genotypes in the Guinea Savannah Agro-Ecological Zone of Ghana

Agriculture, 2023
The on-farm mother–baby trial experimental approach was employed to evaluate the performance of elite groundnut genotypes on farmers’ fields in the Guinea savannah agroecology of Ghana in the 2020 and 2021 cropping seasons.
Ophelia Asirifi Amoako, Richard Oteng-Frimpong, Julius Yirzagla, Yussif Baba Kassim, Theophilus Kwabla Tengey, Desmond Sunday Adogoba, Mercy Mingle, Ramatu Alhassan, Abdul Aleem Ibrahim   +8 more
doaj   +1 more source

Detecting animals in African Savanna with UAVs and the crowds [PDF]

, 2017
Unmanned aerial vehicles (UAVs) offer new opportunities for wildlife monitoring, with several advantages over traditional field-based methods. They have readily been used to count birds, marine mammals and large herbivores in different environments ...
Joost, Stéphane, Rey, Nicolas, Tuia, Devis, Volpi, Michele   +3 more
core   +9 more sources

Mobile phones and wrong numbers: how Maasai agro-pastoralists form and use accidental social ties in East Africa

Ecology and Society, 2021
Mobile phones are recognized as important new tools for rural development in the Global South, but few studies have examined how phones can shape social networks.
Timothy D. Baird, J. Terrence McCabe, Emily Woodhouse, Isaya Rumas, Stephen Sankeni, Gabriel Ole. Saitoti   +5 more
doaj   +1 more source

Field efficacy of genetically modified FK 95 Bollgard II cotton for control of bollworms, Lepidoptera, in Ghana

Agriculture & Food Security, 2018
Background Cotton (Gossypium hirsutum L.) cultivation in Ghana is constrained by bollworms that damage squares (flower buds) and developing bolls, resulting in loss in seed cotton yield.
Mumuni Abudulai, Emmanuel Boachie Chamba, Jerry Asalma Nboyine, Ramson Adombilla, Iddrisu Yahaya, Ahmed Seidu, Foster Kangben   +6 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

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

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