Results 41 to 50 of about 72,458 (351)
Cogent Food & Agriculture, 2018 Identification of superior genotypes from variability generated via hybridization and understanding the nature of the gene action controlling grain yield and related traits are crucial for cowpea varietal improvement.
Emmanuel Yaw Owusu +4 more
doaj +1 more source
Frontiers in Plant Science, 2017 Conservation agriculture (CA) practices are being widely promoted in many areas in sub-Saharan Africa to recuperate degraded soils and improve ecosystem services. This study examined the effects of three tillage practices [conventional moldboard plowing (
Jesse B. Naab +3 more
doaj +1 more source
Generation mean analysis of the key earliness related traits in cowpea (Vigna unguiculata (L.) Walp)
Scientific African, 2022 The nature of gene action controlling agronomic traits enables plant breeders to execute a successful crop improvement programme. To elucidate the type of gene action governing the key earliness related traits in cowpea, seven populations of the six ...
Emmanuel Yaw Owusu +6 more
doaj +1 more source
Droughts and the ecological future of tropical savanna vegetation
Journal of Ecology, 2019 Climate change is expected to lead to more frequent, intense and longer droughts in the future, with major implications for ecosystem processes and human livelihoods. The impacts of such droughts are already evident, with vegetation dieback reported from
M. Sankaran
semanticscholar +1 more source
Plant Protection Science, 2013 Field efficacy of neem (Azadirachta indica A. Juss) for managing soil arthropods and Cercospora leaf spots damage to peanut was studied in Ghana from 2008 to 2010.
Mumuni Abudulai +7 more
doaj +1 more source
Field crops research (Print), 2017 Highlights • Productivity of different intercropping patterns was tested in Guinea savanna of northern Ghana.• Land Equivalent Ratios in intercropping systems are greater under low soil fertility conditions.• Competitive balance between intercrops in ...
M. Kermah +5 more
semanticscholar +1 more source
Deforestation and Efficiency: Insights From Forest Transition in the Brazilian Cerrado
Agribusiness, EarlyView.ABSTRACT This paper estimates technical efficiency (TE) and environmental efficiency (EE) of agricultural production at the municipal level of the Brazilian Cerrado in 2006 and 2017, and investigates their underlying mechanisms in relation to forest transition theory.
Ricardo Muniz Simões +2 more
wiley +1 more source
Reflecting on research produced after more than 60 years of exclosures in the Kruger National Park
Koedoe: African Protected Area Conservation and Science, 2022 Herbivores are a main driver of ecosystem patterns and processes in semi-arid savannas, with their effects clearly observed when they are excluded from landscapes.
Corli Wigley-Coetsee +11 more
doaj +1 more source
Extensive 21st‐Century Woody Encroachment in South America's Savanna
Geophysical Research Letters, 2019 Woody encroachment is occurring in all tropical savannas of the world. However, in the Brazilian savanna (the Cerrado), the extent of this phenomenon is still poorly documented.
T. Rosan +6 more
semanticscholar +1 more source
Modular Electronic Microrobots With Onboard Sensor‐Program‐Steered Locomotion
Advanced Intelligent Systems, EarlyView.Modular electronic smartlet microrobots integrate ambient‐light energy harvesting, photodetection, programmable CMOS control, and bubble‐based actuation within a sub‐millimeter fold‐up architecture. A 58‐bit on‐board CMOS chiplet enables sensor–program steered switching between independently addressable actuators, achieving closed‐loop 2D navigation in
Vineeth K. Bandari +6 more
wiley +1 more source