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A method of rooting shoot tips is described, whereby plants free from cassava bacterial blight were produced. The use of this method, in addition to cultural practices, is proposed for producing pathogen-free foundation stock for a planting material certification program. (AS)
The min factors necessary to obtain high yields are briefly described for climbing beans on the basis of expt conducted at CIAT at an alt of 1000 m, av rainfall of 1000 mm and av temp of 25 degrees Celsius: trellis system (vertical bamboo supports with 2 wires to hold up a polypropylene or sisal ...
Aphids are pest species of many crops and biocontrol methods are often ineffective. Ant–aphid associations can be mutualistic or antagonistic, with ants increasing or reducing aphid numbers. Within-species plant variation or other herbivores may further influence these ant–aphid interactions. Okr...
This paper reviews the research progress made in pathology within the bean research network in Africa over the period 1985-92. Attention is drawn selectively to the most pertinent advances in preference to a fully comprehensive description of all work conducted in the region. A discussion of dise...
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