Soil moisture and potassium affect the performance of symbiotic nitrogen fixation in faba bean and common bean

1996 ◽  
Vol 184 (1) ◽  
pp. 123-130 ◽  
Author(s):  
U. Ravi Sangakkara ◽  
Ueli A. Hartwig ◽  
Josef N�sberger
Keyword(s):  
Nitrogen Fixation ◽  
Soil Moisture ◽  
Common Bean ◽  
Faba Bean ◽  
Symbiotic Nitrogen Fixation

RHIZOBIAL INOCULATION AND P FERTILIZATION RESPONSE IN COMMON BEAN (PHASEOLUS VULGARIS) UNDER GLASSHOUSE AND FIELD CONDITIONS

2007 ◽  
Vol 43 (1) ◽  
pp. 67-77 ◽  
Author(s):  
M. ZAMAN-ALLAH ◽  
B. SIFI ◽  
B. L'TAIEF ◽  
M. H. EL AOUNI ◽  
J. J. DREVON
Keyword(s):  
Nitrogen Fixation ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Field Conditions ◽  
Nutrient Deficiencies ◽  
P Fertilization ◽  
Rhizobium Tropici ◽  
Symbiotic Efficiency ◽  
Rhizobial Inoculation

Osmotic constraints, nutrient deficiencies, especially phosphorus, and the lack of efficient strains of rhizobia in Mediterranean soils are major factors limiting symbiotic nitrogen fixation and yield in common bean (Phaseolus vulgaris). In order to improve yields, we investigated responses to rhizobial inoculation and P fertilization under glasshouse and field conditions with two bean cultivars, Coco blanc and BAT477. The nodulation test, using a hydroponic system in a glasshouse, revealed strong variability among 22 rhizobium strains of various origins, in their symbiotic efficiency, compared with Rhizobium tropici CIAT899. The introduced strains proved to be more efficient although some local rhizobia revealed high potential efficiencies. Glasshouse trials showed a significant effect of inoculation and P supply on nodulation, N content and shoot dry weight that varied with rhizobial strain. Field trials substantiated the glasshouse observations and emphasized the effects of cultivar-rhizobia interactions on symbiotic parameters and yields. It is concluded that inoculation with suitable rhizobia with supply of additional P is a technology that may improve symbiotic nitrogen fixation and yield in common bean in some soils under a Mediterranean climate.

scholarly journals SYMBIOTIC NITROGEN FIXATION OF FABA BEAN PLANTS INOCULATED WITH SALT-TOLERANT Rhizobium ISOLATES

2012 ◽  
Vol 3 (10) ◽  
pp. 411-423 ◽  
Author(s):  
Nagwa M. M. El-Khateeb ◽  
M. E. Shalaby ◽  
E. B. A. Belal ◽  
SH. M. A. El-Gremi
Keyword(s):  
Nitrogen Fixation ◽  
Faba Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Salt Tolerant ◽  
Bean Plants

scholarly journals Nodulation and nitrogen fixation in interspecies grafts of soybean and common bean is controlled by isoflavonoid signal molecules translocated from shoot

2011 ◽  
Vol 57 (No. 10) ◽  
pp. 453-458 ◽  
Author(s):  
M.H. Abd-Alla
Keyword(s):  
Nitrogen Fixation ◽  
Sustainable Agriculture ◽  
Common Bean ◽  
Nutrient Solution ◽  
Symbiotic Nitrogen Fixation ◽  
Signal Molecules ◽  
Legume Species ◽  
Root Extracts ◽  
Exogenous Application

  Identification of common signals of nodulation control among legume species will facilitate progress in enhancing symbiotic nitrogen fixation of legumes in sustainable agriculture system. Grafting experiments between soybean and common bean were carried out to evaluate whether a common shoot signals control the expression of hypernodulation among the tow species. Grafting of a hypernodulating soybean mutant NOD1-3 shoots to three cultivars of normally nodulating common bean roots resulted in hypernodulation on roots of three tested cultivars of common bean. The shoot control of hypernodulation may be causally related to differential root isoflavonoid levels, which are also controlled by shoot factors. Isoflavonoid analysis from root extracts of grafted plants showed that NOD1-3 shoots had markedly higher root isoflavonoid concentrations in roots of both NOD1-3 and common bean cv. Adzuki compared with self-grafts of common bean Adzuki. Exogenous application of daidzein, genistein, coumestrol, glycitein and in combination at concentration of 10 µmol to the nutrient solution significantly increased the nodule numbers of common bean cv. Adzuki. Therefore, the control of hypernodulation expression by isoflavonoid signal molecules translocated from shoot is common among legume species.  

Productivity, water use and nitrogen fixation of annual-legume green-manure crops in the Dark Brown soil zone of Saskatchewan

1993 ◽  
Vol 73 (1) ◽  
pp. 139-148 ◽  
Author(s):  
L. Townley-Smith ◽  
A. E. Slinkard ◽  
L. D. Bailey ◽  
V. O. Biederbeck ◽  
W. A. Rice
Keyword(s):  
Nitrogen Fixation ◽  
Soil Moisture ◽  
Faba Bean ◽  
Green Manure ◽  
Green Manure Crop ◽  
Brown Soil ◽  
Soil Zone ◽  
Seed Crops ◽  
Green Manure Crops ◽  
Legume Green Manure

Both large-seeded annual legumes (pulse crops) and small-seeded annual or perennial legumes (forage crops) fix nitrogen (N) and can improve soil organic matter and fertility when used for green manuring. The role of pulses as green-manure crops has not been adequately evaluated in the Prairies, as they have been grown primarily as cash seed crops. An experiment was conducted in the Dark Brown soil zone at Saskatoon over four growing seasons on a moderately heavy-textured soil to determine the productivity, nitrogen fixation and soil moisture use of pea (Pisum sativum L. ’Trapper’), faba bean (Vicia faba L. ’Outlook’), lentil (Lens culinaris Medik. ’Eston’ and ’Indianhead’), Tangier flatpea (Lathyrus tingitanus L. ’Tinga’) and seedling alfalfa (Medicago sativa L. ’Moapa’) as green-manure substitutes for summerfallow. Dry-matter production (above ground) by full bloom averaged 6390, 4140, 3590, 2930 and 1260 kg ha−1 for pea, lentil, faba bean, Tangier flatpea and seedling alfalfa, respectively. Nitrogen yields were 166, 108, 119, 81 and 36 kg ha−1 and N fixation rates were 40, 15, 40, 24 and 4 kg ha−1 for pea, lentil, faba bean, Tangier flatpea and seedling alfalfa, respectively. Green-manure used similar amounts of water as wheat grown to maturity. Snow trapping by desiccating the standing green-manure crop was ineffective in increasing soil water in the spring. Low seeding rate and thus low cost of production made lentil the most reasonable choice as an annual-legume green-manure crop. However, improved methods of water conservation must be found to replace the water used to grow the green-manure crop. Key words: Pea, lentil, faba bean, Tangier flatpea, green manure, soil moisture

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