Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used to determine: (a) nutrient absorption and distribution within the plant during a 12-mo.
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Showing items 1 through 9 of 9.-
Library ResourceJournal Articles & BooksDecember, 1980Colombia, Central America, South America
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Library ResourceJournal Articles & BooksDecember, 1980Colombia, Central America, South America
Research of the physiology section was centered on identifying the characters associated with high root yields and quality in cassava under stress conditions. Plant reaction to water stress was studied, specifically regarding growth and yields of var. M Mex 59 and M Col 22 with a period of artificial rain exclusion. Observations were made throughout the stress period and subsequent recovery. Water stress reduced LAI notably although M Mex 59 maintained a LAI approx. twice that of M Col 22 during the stress period. LAI for both var.
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Library ResourceJournal Articles & BooksDecember, 1980Colombia, Central America, South America
Research of the physiology section was centered on identifying the characters associated with high root yields and quality in cassava under stress conditions. Plant reaction to water stress was studied, specifically regarding growth and yields of var. M Mex 59 and M Col 22 with a period of artificial rain exclusion. Observations were made throughout the stress period and subsequent recovery. Water stress reduced LAI notably although M Mex 59 maintained a LAI approx. twice that of M Col 22 during the stress period. LAI for both var.
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Library ResourceJournal Articles & BooksDecember, 1980Colombia, Central America, South America
Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used to determine: (a) nutrient absorption and distribution within the plant during a 12-mo.
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Library ResourceJournal Articles & BooksDecember, 1980Middle Africa, Western Africa, Africa
Information on trypanotolerant livestock in Senegal, the Gamia, Guinea Bissau, Guinea, Sierra Leone, Liberia, Mali, Upper Volta, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Central African Republic, Gabon, Congo and Zaire, particularly livestock numbers & distribution, information available on trypanotolerant cattle, sheep & goats, research and development activities, w. a selected bibliography.
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Library ResourceReports & ResearchDecember, 1980Ethiopia, Africa, Eastern Africa
Description of the socioeconomic organization of the Borana pastoralists with particular reference to the Gada System and the traditional well organization.
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Library ResourceReports & ResearchDecember, 1980Kenya, Africa, Eastern Africa
Organizational and management problems associated w. development of grazing blocks in north eastern kenya w. spec. ref. to the Somali pastoralists and their socioeconomic organization.
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Library ResourceJournal Articles & BooksDecember, 1980
Synthesis of discussion on the design and implementation of pastoral development projects, particularly with reference to the project concept, basic constraints and information needs, organizational aspects and monitoring, w. recommendations.
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Library ResourceJournal Articles & BooksDecember, 1980
Examines basic constraints to pastoral development. Looks into project financing, design and implementation. Discusses manpower development and training procedures. Includes notes on monitoring concepts and ILCA's monitoring activities.
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