Welcome to the International Institute of Tropical Agriculture Research Repository
Reports and Documents: Recent submissions
Now showing items 101-120 of 256
-
Distinction of mixed yam strains (Dioscorea alata L.) cultivated in Yaku Island
(2003)This study clarified we could effectively distinguish mixed water yam strains by observing the differences of morphology of the leaves and tubers in Yaku Island. However, there are considerable variations in morphology, so we may be able to more confidently distinguish strains by also employing the electrophoresis method using acetone powder. -
Ecologically sustainable cassava plant protection (EScaPP): annual report
(1994)Cassava, a tropical root crop, is increasingly important as a food and income source for the rapidly expanding rural and urban populations in Africa and Latín America, playing a key role in poverty alleviation. The storage roots are processed, usually by women, into various food products and animal feed ingredients for domestic use and export. Cassava is also an emergency food reserve under adverse environmental and socio-political conditions when most other crops fail. However, pests1 and poor ... -
Musa pest fact sheet on the banana weevil Cosmopolites sordidus
(2000)This fact sheet provides information about the banana weevil Cosmopolites sordidus, a pest of bananas (Musa spp.), plantains and ensete. It includes details about its biology, life cycle, symptoms, distribution, control and research needs, and photos of the pest and symptoms. -
BNMS II Annual Report 2005
(2006) -
Distinction of mixed yam strains (Dioscorea alata L.) cultivated in Yaku Island
(2003)This study clarified we could effectively distinguish mixed water yam strains by observing the differences of morphology of the leaves and tubers in Yaku Island. However, there are considerable variations in morphology, so we may be able to more confidently distinguish strains by also employing the electrophoresis method using acetone powder. -
Possibility of earlyseason culture of water yam (Dioscorea alata L.) in Yaku island
(2003)Early-season culture of water yam was required in Yaku Island, because of the long growing period, the concentrating work at the harvesting time, the lack of storehouse and so on. Thus we tried to search the early-maturing strains and use a plant growth regulator that promote the tuber enlargement. Then we found out the extremely early maturing strains introduced from high altitude area in the Kingdom of Nepal. On the other hand, foliar applications of gibberellins promoted the tuber enlargement. ... -
A participatory approach for tree diversification in cocoa farms: Ghanaian farmers experience
(2008-09)In Ghana, the diversity and density of non-cocoa trees in cocoa farms is primarily the result of farmers’ managing natural processes of regeneration in forest-fallow systems. Tree diversity is therefore more a result of haphazard, uncoordinated decisions over a long period rather than advanced planning. Relying on natural regeneration processes greatly limits farmers’ ability to select desirable species or arrange their distribution within farms. As a result, the potential of diverse cocoa growing ...