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Books and Book Chapters: Recent submissions
Now showing items 501-520 of 977
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Impact assessment report of YIIFSWA project: raising household income, improving food security and reducing poverty in Nigeria
(International Institute of Tropical Agriculture, 2017) -
Role of microbes in plant protection using intersection of nanotechnology and biology
(Springer, 2018)Plant pathogens are one of the dominating components which restrain crop productivity. Preliminary step headed for managing plant disease is to accurately recognize the pathogen under lab, glasshouse, and field conditions. Modern approach, such as culture-based, antibody-based rapid methods and quantitative polymerase chain reaction (Q-PCR), entrusts on multiple assays to precisely identify the specific plant pathogens which are further time-consuming and lack high sensitivity. Nanobiotechnology ... -
Aflatoxin management strategies in sub-Saharan Africa
(IntechOpen, 2018)Aflatoxins are natural poisons produced by some members of the Aspergillus section Flavi group. Their control is critical in sub-Saharan Africa as in other parts of the world because of the health and economic dangers that aflatoxins cause. Aflatoxin management requires a pipeline approach (from production to consumption) that addresses the pre-disposing factors to aflatoxin contamination. These strategies will involve strategies at the pre-harvest, peri-harvest and post-harvest stages to prevent ... -
Development of micropropagation system for yam (Dioscorea spp.) using somatic embryogenesis
(International Institute of Tropical Agriculture, 2018)Inadequate availability of disease-free planting materials remains a major constraint to yam production. The tissue culture technique has been used to regenerate disease-free plantlets from pre-formed, heattreated meristems followed by micropropagation. This procedure, however, has a low multiplication ratio with an average of 1: 4 every eight weeks. Embryo production from somatic cells (somatic embryogenesis, SE) is a system in which each somatic cell can regenerate a complete plantlet. ... -
Options for soil organic carbon maintenance under intensive cropping in the West African savanna
(2002)Data from the derived savanna zone in southern Benin indicated that some intensive cropping systems (maize/Cajanus and maize/Mucuna relays; maize/cotton with Senna siamea hedgerows) returned about 12 Mg DM ha-1 year-1 of plant biomass to the soil. This compared favorably with the 8 Mg DM ha-1 year-1 reported for current maize/cotton and maize/cowpea systems. Based on calculations with the Rothamsted carbon model, this extra biomass translates into an increase in the topsoil carbon content of 0.33% ... -
Biological control and biorational pesticides for fall armyworm management
(International Maize and Wheat Improvement Center, 2018) -
Application of near infrared reflectance spectroscopy in screening of fresh cassava (Manihot esculenta crantz) storage roots for provitamin A carotenoids
(IM Publications, 2019)A developed Near Infrared Reflectance Spectroscopy (NIRS) calibration equation was used for determining provitamin A carotenoids contents of different trials of fresh yellow root cassava genotypes using a total of 50 cassava genotypes scanned twice by NIRS from 400 nm to 2498 nm. The NIRS calibration equations were used to predict the β-cryptoxanthin, 13-cis β-carotene, trans β-carotene, 9-cis β -carotene, total β-carotene and total carotenoid concentrations of the samples. The predicted values ... -
Portraying rhizobacterial mechanisms in drought tolerance: a way forward toward sustainable agriculture
(Woodhead Publishing, 2019)Drought stress creates water deficit conditions which negatively affect physiological and biochemical processes that ultimately impede crop production. Recent research investigations have revealed that rhizobacterial inoculation of plants induces defense responses or drought tolerance in plants through various morphological and biochemical modifications resulting in enhanced tolerance to drought stress collectively referred as RIDER (rhizobacterial induced drought endurance and resilience). This ... -
Leves topographiques pour les stations de recherche: guide de recherche de lIita, No. 1
(1991)Guide de recherche de l'Iita No. 1 Leves topographiques pour les stations de recherche 1 Cartes 2 Instruments d'arpentage 3 Execution des leves topographiques 4 Calcul de ]a superficie des mampe 5 Enregistrement des donnees: Eumple 6 Utilisation de l'equipement d'arpentage: Exercioe pratique 7 Cartes topographiques: Exemce pratique 8 Cartogra- Exercice pratique 9 Bibliographie Resume. En agriculture, I'arpentage sert a preparer des cartes topographiques qui indiquent les variations au niveau de ... -
Agroforesterie durable pour les tropiques; concepts et exemples: guide de recherche de lIita, No. 26
(1992)L'integration d'es Jigneuses et de cul-tures annuelles dans del systemes d'agriculture en couloirs peut promouvoir la durability de systemes de production comportant peu d'intrants sous les tropiques humides et semi-humides. L'agroforesterie est un sys, teme de protection qui presente des avantages socio-economiques fl court et long termes. Les systemes agro-foTestiers peuvent etre classes en fonction de leuT com-posante principale, de leur disposition structurelle, de leur attributs fonctionnels ... -
Advances in research on cowpea Striga and Alectra
(1997)The parasitic weeds, Alectra vogelii Benth., and Striga gesnerioides (Wild.) Vatke, have become major yield-reducing factors in cowpea. Currently, Striga is more prevalent in the Sudan savanna and Sahelian regions and Alectra in the northern Guinea savanna and southern Sudan savanna regions of West Africa, as well as in East and southern Africa. However, both are fast spreading beyond these limits. Therefore, concerted efforts are being made to develop cowpea varieties resistant to Striga and ... -
Criblage au champ pour la resistance a la cecidomyie africaine du riz: guide de recherche de lIita, No. 34
(1991)La cecidomyie africaine des galles du riz est un insecte ravageur du riz dont la population a recem¬ment connu une veritable explosion dans bon nombre de pays africain s. L'infestation peut provoquer la perte totale de la recolte. Les traitements insecticides pre-sentent de nombreux inconvenients. Le recours aux varietes resistantes reste la meilleure methode de lutte. La resistance est toutefois specifique au site. Un cri-blage realise pendant trois 1I quatre ans sur Ie meme site pennet d'identifier ...