Measurements of N2 fixation by common bean in Central Brazil as affected by different reference crops

1993 ◽  
pp. 53-58
Author(s):  
R. A. Henson
Keyword(s):  
Common Bean ◽  
N2 Fixation ◽  
Central Brazil

scholarly journals Growth and yield of common bean cultivars at two soil phosphorus levels under biological nitrogen fixation

2000 ◽  
Vol 35 (4) ◽  
pp. 809-817 ◽  
Author(s):  
ADELSON PAULO ARAÚJO ◽  
MARCELO GRANDI TEIXEIRA ◽  
DEJAIR LOPES DE ALMEIDA
Keyword(s):  
Common Bean ◽  
N2 Fixation ◽  
Soil Phosphorus ◽  
Block Design ◽  
Growth And Yield ◽  
Yield Potential ◽  
Genotypic Differences ◽  
Biological N2 Fixation ◽  
Randomized Block Design ◽  
P Supply

The genotypic differences on growth and yield of common bean (Phaseolus vulgaris L.) in response to P supply were evaluated in a field experiment under biological N2 fixation. Eight cultivars were grown at two levels of applied P (12 and 50 kg ha-1 of P -- P1 and P2 respectively), in randomized block design in factorial arrangement. Vegetative biomass was sampled at three ontogenetic stages. The effects of genotype and phosphorus were significant for most traits, but not the genotype ´ phosphorus interaction. The cultivars presented different patterns of biomass production and nutrient accumulation, particularly on root system. At P1, P accumulation persisted after the beginning of pod filling, and P translocation from roots to shoots was lower. The nodule senescence observed after flowering might have reduced N2 fixation during pod filling. The responses of vegetative growth to the higher P supply did not reflect with the same magnitude on yield, which increased only 6% at P2; hence the harvest index was lower at P2. The cultivars with highest yields also presented lower grain P concentrations. A sub-optimal supply of N could have limited the expression of the yield potential of cultivars, reducing the genotypic variability of responses to P levels.

scholarly journals N2 Fixation, Carbon Metabolism, and Oxidative Damage in Nodules of Dark-Stressed Common Bean Plants

1997 ◽  
Vol 113 (4) ◽  
pp. 1193-1201 ◽  
Author(s):  
Y. Gogorcena ◽  
A. J. Gordon ◽  
P. R. Escuredo ◽  
F. R. Minchin ◽  
J. F. Witty ◽  
...  
Keyword(s):  
Oxidative Damage ◽  
Common Bean ◽  
N2 Fixation ◽  
Carbon Metabolism ◽  
Bean Plants ◽  
Common Bean Plants

scholarly journals Comparison of inhibition of N2 fixation and ureide accumulation under water deficit in four common bean genotypes of contrasting drought tolerance

2014 ◽  
Vol 113 (6) ◽  
pp. 1071-1082 ◽  
Author(s):  
I. Coleto ◽  
M. Pineda ◽  
A. P. Rodiño ◽  
A. M. De Ron ◽  
J. M. Alamillo
Keyword(s):  
Drought Tolerance ◽  
Common Bean ◽  
Water Deficit ◽  
N2 Fixation
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