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Addressing edaphic constraints to bean production: the Bean/Cowpea CRSP project in perspective

Addressing edaphic constraints to bean production: the Bean/Cowpea CRSP project in perspective,10.1016/S0378-4290(03)00037-6,Field Crops Research,P. H

Addressing edaphic constraints to bean production: the Bean/Cowpea CRSP project in perspective   (Citations: 13)
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Edaphic factors constrain bean production in most areas where this crop is grown. They include nutrient constraints particularly N and P deficiency, soil acidity including Al and manganese toxicity, and drought. The Bean/Cowpea Collaborative Research Support Program (CRSP) has supported research on edaphic constraints to bean production since its inception, the major partnerships involving the University of Wisconsin and EMBRAPA, Brazil (1981–1989) and the University of Minnesota and INIAP, Ecuador (1989–2002). Research over this period has emphasized cultivar and strain variation in nodulation and nitrogen (N2) fixation, host strain interaction and coevolution, host and strain tolerance of soil acidity and nitrogen fixation under phosphorus limited conditions. This paper reviews recent developments in these areas of nitrogen fixation research, but does so from the perspective of the Bean/Cowpea CRSP project.
Journal: Field Crops Research - FIELD CROP RES , vol. 82, no. 2, pp. 179-192, 2003
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    • ...Common beans (Phaseolus vulgaris L.) are considered to be the most important grain legume for human consumption; and comprise 50% of the grain legumes consumed worldwide (Broughton et al. 2003, Graham et al. 2003)...
    • ...A range of environmental factors, such as low soil nitrogen (N) and phosphorus (P) levels, and acid soil conditions are important constraints for bean production in most areas where this crop is grown (Graham et al. 2003)...

    Tahar Boutraa. Growth and carbon partitioning of two genotypes of bean (Phaseolus vul...

    • ...Environmental constraints such as high soil acidity and low soil nitrogen and P levels considerably limit bean production, in particular in the Mediterranean and tropical zones (Graham et al. 2003)...

    Saber Kouaset al. Root Proliferation, Proton Efflux, and Acid Phosphatase Activity in Co...

    • ...Graham et al. (2000) observed the following traits as being highly correlated with active nodulation and high N 2 Wxation in symbiosis; nodule number, nodule mass, nodulation score, shoot weight, shoot N and shoot : root ratio...
    • ...Graham et al. (2000) have identiWed the mechanisms for improved eYciency in the uptake of nitrogen as involving changes in root hair density, length and root architecture...
    • ...The higher yields observed for parents with higher number of nodules is in agreement with Wndings of Graham et al. (2000)...

    John Munji Kimaniet al. The mechanism of genetic control for low soil nitrogen (N) tolerance i...

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