Publications by authors named "Gaeva T"

Article Synopsis
  • The study examined morphological and symbiotic traits of six symbiotic pea mutants compared to the original cultivar Rondo over different growth periods.
  • One mutant (K10a) showed lower plant height and vegetative biomass but had superior nodulation and nitrogen fixation, while the remaining five hypemodular mutants performed similarly to or better than Rondo in production capacity.
  • Mutants K1a, K2a, and K27a are identified as beneficial for increasing nitrogen fixation in pea breeding.
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Experiments on the effect of genotypic environment on the expression of the nod4 gene, responsible for supernodulation in pea, were performed. The genotypic background was found to affect the manifestation of both major symbiosis-related traits (number of nitrogen-fixing bacterial nodules and nitrogenase activity) and productivity-related traits (stem height, seed number, and seed weight), which form the pleiotropic complex of the mutant gene. Using recurrent selection, we developed supernodulating lines significantly exceeding the original mutant line and studied them up to generations F5-F6.

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A quantitative karyological analysis of immature male sex cell (IMSC) composition in ejaculate of males with normal spermogram (a relative standard), oligo-, astheno-, terato- or azoospermia has been made. The specimens were obtained from 100 patients. Because of IMSC absence, a part of the 150 specimens lacked informative value.

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