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Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L.

While symbiotic nitrogen (N2) fixation by G. max and P. vulgaris reduces their need for combined N, N2 fixation under field conditions is rarely maximized. This paper reviews constraints to N2 fixation in these species, then examines the genetic variability recorded for traits affecting N2 fixation...

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Main Authors: Graham, Peter H., Temple, Steven R.
Format: Journal Article
Language:Inglés
Published: Springer 1984
Subjects:
cultivars
germplasm
nitrogen fixation
nodulation
phaseolus vulgaris
plant breeding
selection
usa
north america
symbiosis
Online Access:https://hdl.handle.net/10568/44080
Summary:While symbiotic nitrogen (N2) fixation by G. max and P. vulgaris reduces their need for combined N, N2 fixation under field conditions is rarely maximized. This paper reviews constraints to N2 fixation in these species, then examines the genetic variability recorded for traits affecting N2 fixation and the further work needed in this area. It considers emerging programs for the improvement of N2 fixation in G. max and P. vulgaris and pays particular attention to methodological considerations.

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