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Growth and N uptake in pot-grown maize, beans, and cassava were evaluated under 2 levels of soil N at CIAT-Palmira (Colombia). The lower amount of the element reduced its uptake by the 3 species, resulting in lower tissue concn., especially in the leaves. Under low N, DM accumulation was also red...


Porto, M.C.M.El-Sharkawy, Mabrouk A.Cock, James H.Hernández, A. del P.Cadena, G. de[Crescimento, fotossintese e eficiencia do uso de nitrogenio em milho, feijao e mandioca submetidos a dois niveis de N no solo]Crescimento, fotossintese e eficiencia do uso de nitrogenio em milho, feijao e mandioca submetidos a dois niveis de N no solo

The effects produced by water stress and three relative humidity (R.H) levels (3q-53%, 5461% & 62-82%) were measured on photosynthesis, stomatal conductance and transpiration rate. Stomatal opening and density were measured in stressed and non stressed plants of plantain (Dominico-Harton) and ora...


Cayón Gutiérrez, Manuel GerardoEl-Sharkawy, Mabrouk A.Mejía de Tafur, María Sara[Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano]Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano

El-Sharkawy, Mabrouk A.Cock, James H.[The humidity factor in stomatal control and its effect on crop productivity]The humidity factor in stomatal control and its effect on crop productivity

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...


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

A descriptive and integrated look at the physiology of the bean plant is presented. Initially, the basic physiological processes that determine bean yields are discussed, namely (1) metabolic events such as photosynthesis, respiration, and N metabolism, which have a direct effect on growth, and (...


White, Jeffrey W.Izquierdo, J.[Dry bean: physiology of yield potential and stress tolerance]Dry bean: physiology of yield potential and stress tolerance

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...


Laing, DRKretchmer, PJZuluaga G, S[Physiological studies on yield and adaptation in Phaseolus vulgaris L]Physiological studies on yield and adaptation in Phaseolus vulgaris L
Thro, Ann MarieBeachy, Roger N.Bonierbale, Merideth W.Fauquet, Claude M.Henry, GuyHenshaw, Graham G.Hughes, Monica A.Kawano, KazuoRaemakers, C.J.J.M.Roca, William M.Sch"pke, C.Taylor, Nigel J.Visser, Richard G.F.[International research on biotechnology of cassava (tapioca, Manihot esculenta Crantz) and its relevance to Southeast Asian economies: a cassava biotechnology network review]International research on biotechnology of cassava (tapioca, Manihot esculenta Crantz) and its relevance to Southeast Asian economies: a cassava biotechnology network review
Rolando, J.L.Ramírez, D.Yactayo, W.Monneveux, P.Quiróz, R.[Leaf greenness as a drought tolerance related trait in potato (Solanum tuberosum L.).]Leaf greenness as a drought tolerance related trait in potato (Solanum tuberosum L.).

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