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 Gerardo
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El-Sharkawy, Mabrouk A.
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Mejía de Tafur, María Sara
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[Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano]
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Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano
Cassava is an important energy-rich food for millions of people in tropical developing countries. The crop has reached that status after thousands of years of evolution under diverse agro-ecosystems, movement of germplasm within and across continents, and more recently, through scientific genetic...
Iglesias F., Carlos Ariel
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Bonierbale, Merideth W.
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El-Sharkawy, Mabrouk A.
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Lozano T., José Carlos
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Bellotti, Anthony C.
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Wheatley, Christopher C.
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[Focusing basic research for cassava varietal improvement]
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Focusing basic research for cassava varietal improvement
In recent studies of cassava at CIAT, net CO2 uptake rates of 20 to 35 ?mol CO2 m?2 s?1 were commonly observed. Cassava photosynthesis has a high optimum temperature (35°C) and a wide plateau (25 to 35°C) corresponding to the temperature range under which cassava is cultivated. Leaf photosynthesi...
Two contrasting clones of cassava (Manihot esculenta) were reciprocally grafted to test the hypothesis that the yield of cassava is limited by the number of storage roots. Effects of the root sink on leaf gas exchange were also tested under field conditions using a portable infra-red gas analyzer...
Pellet, D
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El-Sharkawy, Mabrouk A.
,
[Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis]
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Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis
El trabajo de campo se llevó a cabo en dos localidades de la costa Atlántica Colombiana, Riohacha en la Guajira, considerada como zona semi-arida y Santo Tomás Atlántico, como zona sub-húmeda. La respuesta a la humedad relativa se evaluó en diez cultivares, entre las 8 y las 13 horas empleando un...
Mejia de Tafur, MS
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El-Sharkawy, Mabrouk A.
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Cantillo, S.H. de
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[Respuesta fotosintética de la yuca (Manihot esculenta Crantz) en dos ambientes]
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Respuesta fotosintética de la yuca (Manihot esculenta Crantz) en dos ambientes
Agricultural research and development plays an essential role in a nation's economic development, providing for food security for an ever-increasing population. In developed countries, the gap between potential and actual yield is largely closed because of a combination of advanced technologies, ...
El-Sharkawy, Mabrouk A.
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[Utility of basic research in plant/crop physiology in relation to crop improvement : A review and a personal account]
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Utility of basic research in plant/crop physiology in relation to crop improvement : A review and a personal account
Cassava (Manihot esculenta Crantz) is a hot-climate crop that is also grown in cool areas of the highland tropics, where yields are reduced. The purpose of this study was to evaluate the effect of growth temperature on photosynthesis of two cassava cultivars from contrasting habitat and to determ...
El-Sharkawy, Mabrouk A.
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Mejía de Tafur, MS
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Cadavid López, Luis Fernando
,
[Photosynthesis of cassava and its relation to crop productivity]
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Photosynthesis of cassava and its relation to crop productivity