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Report 1977

Autor: Laing, DR
Enlace original: https://cgspace.cgiar.org/handle/10568/71827

Investigación en Agricultura
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Laing, DR ,  [Crecimiento y dessarrollo del frijol comun (Phaseolus vulgaris L.)] ,  Crecimiento y dessarrollo del frijol comun (Phaseolus vulgaris L.)
Report 1980

Autor: Kretchmer, PJ Laing, DR Jones, Peter G.

The growth of 9 grain legumes under irrigated conditions was analyzed at CIAT to evaluate bean efficiency in grain production. The representative genotypes of each sp. were selected from preliminary var. evaluations. The most efficient spp. in yield production/day were soybeans, cowpeas and beans...

Enlace original: https://cgspace.cgiar.org/handle/10568/71847

Investigación en Agricultura
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Kretchmer, PJ ,  Laing, DR ,  Jones, Peter G. ,  [Estudio comparativo de Phaseolus vulgaris con ocho leguminosas de grano diferentes] ,  Estudio comparativo de Phaseolus vulgaris con ocho leguminosas de grano diferentes
Report 1979

Autor: Restrepo M., José M. Laing, DR

Some basic concepts of physiology are presented in relation to bean cultivation, and the external and internal factors affecting crop development and production are described: the environment (edaphic and climatic factors), photosynthesis and factors that affect it (light, CO2, O, temp., wind and...

Enlace original: https://cgspace.cgiar.org/handle/10568/71394

Investigación en Agricultura
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Restrepo M., José M. ,  Laing, DR ,  [Conceptos basicos en la fisiologia del frijol] ,  Conceptos basicos en la fisiologia del frijol
Report 1980

Autor: Laing, DR Kretchmer, PJ Zuluaga G, S

Common beans (Phaseolus vulgaris L.) are an important world crop with a relatively low productivity in most cropping systems. Physiological factors influencing yield are discussed in this paper with respect to field research in the tropics. The comparative earliness of the majority of the germpla...

Enlace original: https://cgspace.cgiar.org/handle/10568/71367

Investigación en Agricultura
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Laing, DR ,  Kretchmer, PJ ,  Zuluaga G, S ,  [Physiological studies on yield and adaptation in Phaseolus vulgaris L] ,  Physiological studies on yield and adaptation in Phaseolus vulgaris L
Report 1976

Autor: Laing, DR
Enlace original: https://cgspace.cgiar.org/handle/10568/71442

Investigación en Agricultura
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Laing, DR ,  [Crecimiento y desarrollo del frijol común (Phaseolus vulgaris L.)] ,  Crecimiento y desarrollo del frijol común (Phaseolus vulgaris L.)
Report 1980

Autor: Kretchmer, PJ Laing, DR Zuluaga, S

CIAT has conducted research to develop a method for selecting drought-tolerant genotypes. Bean var. were planted during the dry season. Irrigation was suspended at the initiation of flowering in the dry treatment and the control treatment continued to be irrigated to avoid water shortage. During ...

Enlace original: https://cgspace.cgiar.org/handle/10568/71910

Investigación en Agricultura
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Kretchmer, PJ ,  Laing, DR ,  Zuluaga, S ,  [Uso del termometro infrarrojo para la seleccion por tolerancia a sequia en Phaseolus vulgaris L.] ,  Uso del termometro infrarrojo para la seleccion por tolerancia a sequia en Phaseolus vulgaris L.
Conference Paper 1978

Autor: Laing, DR

Results obtained in expt at CIAT are analyzed 20 maize hybrids were planted in 4 replications for 2 seasons, in monoculture and in association with bean genotypes P566 and P589, types II and IV (bush and climbing). In monoculture, Tropical White Mix gave the more than yield in both seasons (7.26 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/69884

Investigación en Agricultura
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Laing, DR ,  [Competencia de los sistemas de cultivos asociados de maiz-frijol] ,  Competencia de los sistemas de cultivos asociados de maiz-frijol
Conference Paper 1990

Autor: Laing, DR

Selected examples of specific agricultural research are discussed to highlight the development of sustainable agricultural production systems. A clear differentiation between plant protectants and fertilizers is provided. The focus is on Latin American tropics and sub-tropics and on three staples...

Enlace original: https://cgspace.cgiar.org/handle/10568/69920

Investigación en Agricultura
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Laing, DR ,  [The use of agrochemical inputs in productive and sustainable tropical crop production systems of rice, common beans and maize] ,  The use of agrochemical inputs in productive and sustainable tropical crop production systems of rice, common beans and maize
Conference Paper 1990

Autor: Laing, DR
Enlace original: https://cgspace.cgiar.org/handle/10568/69753

Investigación en Agricultura
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Laing, DR ,  [The use of agrochemical inputs in productive and sustainable tropical crop production systems of rice, common beans and maize] ,  The use of agrochemical inputs in productive and sustainable tropical crop production systems of rice, common beans and maize
Conference Paper 1978

Autor: Laing, DR

The concepts of adaptability and stability and their relative importance in beans are defined as well as the different methods used to measure them. Based on data submitted by the International Bean Yield and Adaptation Nursery (IBYAN) for 1976, different stability values were calculated using 3 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/69890

Investigación en Agricultura
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Laing, DR ,  [Adaptabilidad y estabilidad en el comportamiento de plantas de frijol comun] ,  Adaptabilidad y estabilidad en el comportamiento de plantas de frijol comun

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