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Francis, C.A.Pradilla FAPinstrup-Andersen, Per[Avances recientes en el mejoramiento de la calidad de proteína]Avances recientes en el mejoramiento de la calidad de proteína

Yield trials with farmers and acceptance surveys were conducted in Colombia in 1969-1970 to assess the potential use of opaque-2 maize in the tropical regons of the country. Yields were variable, particularly from one farm to another. In spite of this variability which may have confused the resul...


Francis, C.A.Álvarez Luna, E.Sarria Villano, DPinstrup-Andersen, PerPradilla, A.[Yields and acceptability of opaque-2 maize in the tropics of Colombia]Yields and acceptability of opaque-2 maize in the tropics of Colombia
Scheuch, FFrancis, C.A.[Selection systems for increasing protein quality with opaque-2 gene in floury maize]Selection systems for increasing protein quality with opaque-2 gene in floury maize

A large proportion of the maize planted in the tropics and highlands of Latin America is associated with beans and other crops. Agronomic research generally has focused on the improvement of varieties and hybrids, and the development of systems and technology for monoculture. The high production ...


Francis, C.A.Flor Montoya, Carlos A.Prager Mosquera, M[Agronomic and economic contrasts between monocrop maize and associated maize/bean systems]Agronomic and economic contrasts between monocrop maize and associated maize/bean systems

Studies of planting dates, densities and patterns in maize bean associations were conducted in Colombia. An efficient methodology is needed to gain a better understanding of maize/bean systems and other crop combinations. The ideal system should minimize competition among the crops (for light, wa...


Flor Montoya, Carlos A.Francis, C.A.[Respuesta de estudio de algunos componentes de una metodologia para investigar los cultivos asociados en el tropico latinoamericano]Respuesta de estudio de algunos componentes de una metodologia para investigar los cultivos asociados en el tropico latinoamericano
Francis, C.A.Heichel, GH[Efficiency of energy production in maize-bean and other mixed cropping systems]Efficiency of energy production in maize-bean and other mixed cropping systems
Flor Montoya, Carlos A.Francis, C.A.[Propuesta de estudio de algunos componentes de una metodología para investigar los cultivos asociados en el trópico latinoamericano]Propuesta de estudio de algunos componentes de una metodología para investigar los cultivos asociados en el trópico latinoamericano
Spain, James M.Francis, C.A.Howeler, Reinhardt H.Calvo, FA[Differential species and varietal tolerance to soil acidity in tropical crops and pastures]Differential species and varietal tolerance to soil acidity in tropical crops and pastures

Current methodologies and selection criteria used to screen and adapt var. for intercropping systems, especially beans/maize associations, in the tropics are reviewed. The overall importance of intercropping systems in the tropics is discussed as well as general plant characteristics useful for t...


Francis, C.A.Flor Montoya, Carlos A.Temple, Steven R.[Adapting varieties for intercropped systems in the tropics]Adapting varieties for intercropped systems in the tropics

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