Differential adaptation of two varieties of common bean to abiotic stress : I. Effects of drought on yield and photosynthesis

The yield of 24 commercial varieties and accessions of common bean (Phaseolus vulgaris) has been determined at different sites in Chile and Bolivia. Statistical analysis was performed in order to characterize whether a particular variety was more or less stable in yield under different environmental...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 57(2006), 3 vom: 01., Seite 685-97
1. Verfasser: Lizana, Carolina (VerfasserIn)
Weitere Verfasser: Wentworth, Mark, Martinez, Juan P, Villegas, Daniel, Meneses, Rodrigo, Murchie, Erik H, Pastenes, Claudio, Lercari, Bartolomeo, Vernieri, Paulo, Horton, Peter, Pinto, Manuel
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Comparative Study Journal Article Anthocyanins Water 059QF0KO0R Malondialdehyde 4Y8F71G49Q Abscisic Acid 72S9A8J5GW
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520 |a The yield of 24 commercial varieties and accessions of common bean (Phaseolus vulgaris) has been determined at different sites in Chile and Bolivia. Statistical analysis was performed in order to characterize whether a particular variety was more or less stable in yield under different environmental conditions. Amongst these, two varieties have been identified for more detailed study: one variety has a higher than average yield under unstressed conditions but is strongly affected by stress, and another has a reduced yield under unstressed conditions but is less affected by stress. The contrasting rate of abscission of the reproductive organs under drought stress was clearly consistent with these differences. The more tolerant genotype shows a great deal of plasticity at the biochemical and cellular level when exposed to drought stress, in terms of stomatal conductance, photosynthetic rate, abscisic acid synthesis, and resistance to photoinhibition. By contrast, the former lacks such plasticity, but shows an enhanced tendency for a morphological response, the movement of leaves, which appears to be its principal response to drought stress 
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700 1 |a Wentworth, Mark  |e verfasserin  |4 aut 
700 1 |a Martinez, Juan P  |e verfasserin  |4 aut 
700 1 |a Villegas, Daniel  |e verfasserin  |4 aut 
700 1 |a Meneses, Rodrigo  |e verfasserin  |4 aut 
700 1 |a Murchie, Erik H  |e verfasserin  |4 aut 
700 1 |a Pastenes, Claudio  |e verfasserin  |4 aut 
700 1 |a Lercari, Bartolomeo  |e verfasserin  |4 aut 
700 1 |a Vernieri, Paulo  |e verfasserin  |4 aut 
700 1 |a Horton, Peter  |e verfasserin  |4 aut 
700 1 |a Pinto, Manuel  |e verfasserin  |4 aut 
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