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Variability of Seed Traits in Interspecific and Intergeneric Combinations between Different Genotypes of Cactaceae

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2010, Vol.38(3), p.246 [Peer Reviewed Journal]

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  • Title:
    Variability of Seed Traits in Interspecific and Intergeneric Combinations between Different Genotypes of Cactaceae
  • Author: Mihalte, Lucica ; Sestras, Radu ; Feszt, Gyorgy ; Sestras, Adriana
  • Found In: Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2010, Vol.38(3), p.246 [Peer Reviewed Journal]
  • Subjects: Crosses ; Fruits ; Genetic Variation ; Genotypes ; Phenotypes ; Seed Germination ; Seeds ; Aylostera Buiningiana ; Aylostera Narvaecensis ; Genetic Variability ; Genotypic Variability ; Genotypic Variation ; Rebutia Donaldiana ; Rebutia Kupperiana Var. Spiniflorum ; Cactaceae ; Caryophyllales ; Eudicots ; Angiosperms ; Spermatophyta ; Plants ; Eukaryotes
  • Language: English
  • Description: Based on aesthetic consideration of cacti plants and germination capacity of the pollen grains (more than 30%), 19 genotypes of cacti (including Aylostera narvaecensis, A. buiningiana, Rebutia kupperiana var. spiniflorum, R. donaldiana) have been used in cyclic cross-pollination pattern. Fruits and seeds obtained from 24 interspecific and intergeneric combinations were analyzed by studying their main traits. The highest weight was registered for fruit belonging to R. pseudodeminuta var. schumaniana x R. senilis (23.3 mg) and A. buiningiana x A. vallegardensis (20.4 mg). Coefficient of variability for fruit weight had large amplitude, between 12.3% (A. spinosissima x A. albiflora) and 98.4% (A. favistyla x A. archibuinigiana). The fruits belonging to A. muscula x A. vallegardensis were registered with the highest value of number of seeds/fruit (93.2). In the cross between genera, the greatest value of fruits weight's mean was registered on R. senilis x A. archibuinigiana (29.2 mg) and R. cajasensis x A. muscula (23.1 mg). Peculiarities of the fruits and seeds resulted from intergeneric combinations presented closer connections than interspecific ones. The phenotypic traits of fruits and seeds did not influence the seeds germination, but germination was clearly influenced by compatibility between genitors.
  • Identifier: ISSN: 0255965X

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