Books and Book Chapters: Recent submissions

Now showing items 301-320 of 983

    • Agricultural policies for sustainable management and use of natural resources in Africa 

      International Institute of Tropical Agriculture; Food and Agriculture Organization of the United Nations (2000)
      World per capita food production is today estimated to be about 18% above what it was 30 years ago, but much of Africa is nutritionally worse off today than it was then. Since the vast majority of the poor in Africa depend on agriculture, increasing food production is among the principal means of combating poverty and malnutrition in Africa. The need to rapidly transform agriculture in Africa is understood by the fact that Africa's population growth rate of about 3% per year threatens to reduce ...

    • Farmer participatory development of a control strategy for the variegated grasshopper with a biopesticide in the northern Mono, Benin. 

      Muller, D.; Gbongboui, C.; Groote, H. de; Langewald, J.; Badou, R. (2000)
      Farmers of two villages in Mono province, Benin, in collaboration with researchers of the biological control of locusts and grasshoppers program (LUBILOSA) at IITA, developed a use and marketing strategy for the biopesticide Green Muscle, an oil-based formulation of the entomopathogenic fungus Metarhizium anisopliae var. acridum for the control of Zonocerus variegatus L. Three different doses, two different sprayers and two different periods of control were tested. Farmers preferred the preventive ...

    • Epigenetic lessons from transgenic plants In: Floricultural, ornamental and plant biotechnology: advances and topical issues 

      Ingelbrecht, I.; Mirkov, T.E.; Dixon, Alfred G.O.; Menkir, A. (2006)
      Transgenic plant studies have lead to the breakthrough discovery of RNA silencing as a conserved mechanism for gene regulation across kingdoms. Recent molecular genetic studies have revealed a major role for RNA silencing in the formation of silent chromatin, characterized by histone modifications and dense DNA methylation. These epigenetic marks ensure stable, yet potentially reversible, transmission of the silent state of genetic elements such as transgenes and transposable elements through ...

    • Needs assessment study for marketdriven agricultural technology transfer and commercialization in Abia State, Nigeria: RUSEP 

      Kormawa, P.M.; Kolawole, K.B; Azuogu, I.; Okorji, E.C.; Ezedinma, C.I. (2002)
      RUSEP is the latest attempt by the federal government of Nigeria to alleviate poverty through the transfer of market-driven agricultural technology to farmers and the commercialization of agriculture in selected states in Nigeria. Through this project, employment will be generated through enhanced agricultural enterprises. Abia state in the southeast was chosen as one of the pilot states. The needs assessment study provides information on existing and available improved technologies and level of ...

    • Crop rotation and farming systems: smallholder farming systems and agroforestry systems 

      Hauser, S.L.; Norgove, L.; Nyobe, T. (2006)

    • Preliminary evaluation of variability in Musa root system development 

      Blomme, Guy; Ortiz, R. (1997)
      Studies of Musa root systems have generally focused on the high value export dessert bananas. However, a much broader study is required to support the genetic improvement of plantains and cooking bananas. Detailed time course studies of root system development were carried out on 12 genotypes from six diverse Musa groups. The performance of tissue culture derived plants was compared with that of suckers taken from field grown plants. Genotypes were assessed during establishment of tissue culture ...

    • Evaluation methods for drought tolerance of cowpeas 

      Watanabe, I.; Hakoyama, S.; Terao, T.; Singh, B.B. (1997)
      Cowpea (Vigna unguiculata [L.| Wulp.) is primarily grown in dry regions in the tropics, particularly in sub-Saharan Africa. Drought is important among several yield-reducing factors. Nine hundred cowpea accessions from the Genetic Resources Unit of IITA were evaluated for drought tolerance in a field during the dry season at the IITA Kano Station in northern Nigeria. Some of them were retested three times in greenhouses, once in Nigeria and twice in Japan, using seedlings planted in small pots ...

    • Micropropagation of Brassica oleracea (Cole crops) 

      Msikita, W.; Skirvin, R.M.; Chen, S.Y. (1997)
      Brassica oleracea, (family Brassicaceae), also referred to as cole crops (Nieuwhof 1969; Yamaguchi 1983; Nonnecke 1989), is an economically important vegetable species composed mostly of biennially herbaceous plants, grown as annuals or biennials, depending on the part harvested. Practically every part of the plant can be used, including leaves (cabbage, kale), axillary buds (Brussels sprouts), stems (kohlrabi), flower buds (broccoli), and floral primordia (cauliflower). It is a highly polymorphic ...

    • Production costs in the yambased cropping systems of southeastern Nigeria: RCMP research monograph, No. 6 

      Nweke, F.; Ugwu, B.; Asadu, C.; Ay, P. (1991)

    • IITAs role in International improvement of grain legumes 

      Goldsworthy, P.R. (1978)

    • Evaluating options for soil organic carbon maintenance under intensive cropping in the West African savanna using the Rothamsted Carbon (RothC) model 

      Diels, J.; Aihou, K.; Iwuafor, E.; Merckx, R.; Vanlauwe, Bernard (2003)

    • Genetic improvement for the sustainable management of resistance 

      Craenen, K.; Ortiz, R. (2003)
      In the 1990s, innovative cross-breeding and classic genetic analysis of segregation ratios allowed advances in the understanding of host plant response to black leaf streak disease. Partial resistance owing to a recessive major gene (bs1 ) coupled with at least two additive minor genes (bsri ) appears to be durable because this genetic system slows disease development in the host plant. As a consequence, resistant hybrids show more healthy leaves, i.e. greater photosynthetic leaf area, than their ...

    • Underresearched tropical food crops: cowpea, banana and plantain, and yams 

      Asiedu, Robert; Fatokun, C.A.; Mignouna, J.H.; Ng, S.Y.C.; Quin, F.M.; Vuylsteke, D.R. (1999)
      For a mixture of reasons certain tropical crops which are important as primary or secondary food staples are relatively underresearched. The modem tools of molecular and cellular biotechnology offer the opportunity not only to make substantial gains in our knowledge of these crops, but also to overcome some of the obstacles which presently restrain both their genetic improvement and their productivity in tropical farming Systems. The crops considered here, cowpea (Vigna unguiculatd), banana and ...

    • Bridging the gap with the CGIAR systemwide program on integrated pest management. 

      James, B.; Neuenschwander, P.; Markham, R.; Anderson, P.; Braun, A.; Overholt, W.; Khan, Z.; Makkouk, K.; Meredia, K.; Dokono, D.; Mota-Sanchez, D.; Emechebe, A. (2003)

    • Maize revolution in West and Central Africa: an overview 

      Fakorede, M.A.; Badu-Apraku, B.; Kamara, A.Y.; Menkir, A.; Ajala, S.O. (2003)
      Maize (Zea mays L.) is cultivated under a broad range of climatic conditions in West and Central Africa (WCA). Unfortunately, maize production is constrained by a host of abiotic and biotic stresses, including drought, low soil fertility, diseases, insect pests, and the parasitic weed Striga hermonthica. The stresses, which occur in all countries of WCA, are too formidable for individual national research programs to overcome. The West and Central Africa Collaborative Maize Research Network (WECAMAN) ...

    • The impact of IARC genetic improvement programmes on cassava 

      Johnson, N.L.; Manyong, Victor M.; Dixon, Alfred G.O.; Pachico, D. (2003)

    • Nematode parasites of bananas and plantains 

      Sikora, R.A.; Coyne, D.L.; Queneherve, P. (CAB International, 2018)

    • Reflections and challenges: nematology in subtropical and tropical agriculture 

      Sikora, R.A.; Coyne, D.L.; Hallmann, J.; Timper, P. (CAB International, 2018)

    • Plant parasitic nematodes in subtropical and tropical agriculture 

      Sikora, R.A.; Coyne, D.L.; Hallmann, J.; Timper, P. (CAB International, 2018-08)

    • Consevation des sols: utilization des banquettes a double courbure: Guide de recherche de lIita, No. 6 

      Couper, D.C. (1993)
      L'activite agricole rend les terres cultivees sensible a l'erosion. Or cette demiere peut les render improductives. Les banquettes de niveau contribuent a la prevention de la plus spectaculaire des forms d' erosion. L' erosion en ravines. Le present fascicule fait etat du leve de plan et de la construction de banquettes a double courbur.