The inheritance of preference for strains of Rhizobium trifolii by white clover (Trifolium repents)

1979 ◽  
Vol 92 (3) ◽  
pp. 329-333 ◽  
Author(s):  
G. HARDARSON ◽  
D. GARETH JONES
Keyword(s):  
White Clover ◽  
Rhizobium Trifolii

Early Recognition Signals in the Rhizobium Trifolii-White Clover Symbiosis

1988 ◽  
pp. 183-187 ◽  
Author(s):  
Frank B. Dazzo ◽  
Rawle I. Hollingsworth ◽  
Saleela Philip-Hollingsworth ◽  
Kathryn B. Smith ◽  
Margaret A. Welsch ◽  
...  
Keyword(s):  
White Clover ◽  
Early Recognition ◽  
Rhizobium Trifolii

scholarly journals COMPETITION BETWEEN STRAINS OF RHIZOBIUM TRIFOLII IN THE ESTABLISHMENT OF WHITE CLOVER

1979 ◽  
pp. 138-145
Author(s):  
C.N. Hale
Keyword(s):  
White Clover ◽  
Competitive Ability ◽  
Rhizobium Trifolii ◽  
Central Plateau ◽  
Competitive Situation ◽  
Inoculation Methods ◽  
Inoculation Techniques ◽  
Inoculant Strain

The satisfactory establishment of white clover in redevelopment areas already colonized by Rhizobium trifolii depends upon (a) the effectiveness of the naturalized population, (b) the ability to introduce more effective strains, and (c) the persistence of introduced strains in a competitive situation. The effectiveness of naturalized populations of R. trifolii isolated from pasture soils on the Central Plateau is inferior when compared under standard conditions with strains used for inoculation of white clover. However, the superior competitive ability of naturalized populations prevents the satisfactory introduction of inoculant strains using conventional inoculation techniques. Alternative inoculation methods have been used to increase the proportion of nodules formed from the inoculant strain. Techniques are now being sought to improve the persistence of introduced strains of R. trifolii in competitive situations.

SOME FACTORS AFFECTING THE SURVIVAL OF RHIZOBIUM TRIFOLII ON WHITE CLOVER

1976 ◽  
pp. 182-186 ◽  
Author(s):  
C.N. Hale
Keyword(s):  
Seed Coat ◽  
White Clover ◽  
Inhibitory Effect ◽  
Water Soluble ◽  
Rhizobium Trifolii ◽  
Factors Affecting ◽  
Naturally Occurring ◽  
Clover Seed ◽  
Micro Organisms ◽  
Selection Of

Survival of Rhizobium trifolii on white clover seed before sowing is adversely affected by both drying and a water-soluble toxin which diffuses from the seed coat during the inoculation process. Survival of rhizobia is increased by removal of the toxin by seed washing or the suppression of its inhibitory effect by treatment of seed with phenolic adsorbents. Survival of rhizobia introduced into tbe soil on seed before the rhizosphere is capable of supporting growth and multiplication may be affected by the toxic diffusate and competition and/or antagonism from naturally occurring populations of soil micro-organisms, Selection of effective strains of rhizobia on criteria such as survival and competition abilities, as well as on the ability to nodulate and fix nitrogen, is considered to be extremely important.

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