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The management of the fall armyworm Spodoptera frugiperda in maize field necessitates the use a big quantities of insecticides and sometimes the use of multiple types and formulations of chemicals. The use of insecticides in crops is associated with environmental risks and health hazards to both ...
Yam is an important food crop, especially in the ‘yam zone' of West Africa. Total world production is about 20-25 million ton per annum, some 70 per cent of it grown in Nigeria. Although regarded mainly as a source of carbohydrate, some species are nearly as rich in protein as rice or maize.
Poor soil fertility and recurrent drought are major constriants to maize production in the West Africa savanna. The development of maize cultivars with superior rooting system to absorb nitrogen and water efficiently from the soil is desirable. However, direct measurement of root characteristics ...
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