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  2. 1978
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Showing items 1 through 9 of 21.
  6. Library Resource

    El Control de Erinnyis ello (L) gusano cachón de la yuca [conjunto audiotutorial]

    Journal Articles & Books
    December, 1978
    Colombia, South America, Central America
    land use

    This audiotutorial unit (cassette, printed script, 70 color slides, study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape recorder. Each unit is available from the Distribution Office at a cost of US$ 50; photocopies of the study guide alone can be obtained from the Cassava Information Center. Data are given on the biology of the hornworm, its economic importance and possible methods of control.

  7. Library Resource

    Evaluation of the productivities of Maure and Peul cattle breeds at the Sahelian station, Niono, Mali

    Journal Articles & Books
    December, 1978
    Mali, Africa, Western Africa
    Rangelands, Drylands & Pastoralism
    rangelands

    Presents the results of a study carried out to evaluate the productivities of the Maure and Peul breeds and some of their crosses in a semi-arid environment, at the Sahelian station and Niono ranch, Mali. Describes the production system at Niono (1966-1975). Examines reproductive performance, milk yield & composition, viability, body weight, and maternal ability. Compares production systems in environments similar to that of Niono.

  8. Library Resource

    Field problems of beans in Latin America

    Journal Articles & Books
    December, 1978
    Colombia, South America, Central America
    land use

    A description is given of the different factors limiting to bean production in Latin America, type of damage caused, environmental conditions where they prevail, and possible control measures. With regard to diseases, the following are discussed: aphid-, whitefly- and beetle-transmitted viruses, foliage- and pod- infecting fungi, root- and stem-infecting fungi, bacterial diseases, nematodes and seed pathology. Insect pests are grouped according to the part of the plant attacked: seedlings, leaves, pods and the stored seeds.

  10. Library Resource

    Mathematical modelling of livestock production systems: Application of the Texas A & M University beef cattle production model to Botswana

    Journal Articles & Books
    December, 1978
    Botswana, Africa, Southern Africa
    Rangelands, Drylands & Pastoralism
    rangelands
    research

    The animal science systems group at Texas A & M University (TAMU) has developed a computer based beef cattle production model for use in tropical countries. This model can be used to predict animal and herd productivity under a variety of management regions in diverse environments. Economic analyses can then be made, based on these predictions.

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