Morphological and symbiotic traits were studied in local endemic forms of the pea originating from Egypt, Syria, Afghanistan, and Palestine. A number of endemic forms exceeded the regionalized Druzhnaya cultivar of the fodder pea in productivity of the seeds in field and greenhouse experiments. In order to improve nodulation and nitrogen fixation, endemic forms were crossed with the supernodulating K301 mutant (marked by the nod4 gene). Recurrent selection of lines up to F5,6 generations was conducted with an estimation of productivity, nodulation, and nitrogen fixation. The most promising recurrent lines with a high productivity, active nodulation, and high nitrogen fixation were obtained during the crossing of endemic forms with the recurrent line marked by the nod4 gene. The line was previously created during the crossing between the Druzhnaya cultivar and the supernodulating K301 mutant marked by the nod4 gene.
Russian Journal of Genetics – Springer Journals
Published: Feb 6, 2014
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