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

  • Lucica MIHALTE University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, 3-5 Manastur St., 400372
  • Radu E. SESTRAS University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, 3-5 Manastur St., 400372
  • Gyorgy FESZT Alexandru Borza” Botanical Garden, 42 Republicii Street, Cluj-Napoca
  • Adriana F. SESTRAS Fruit Research Station, 3-5 Horticultorilor St., Cluj-Napoca 400454

Abstract

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 weights 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.

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Published
2010-12-05
How to Cite
MIHALTE, L., SESTRAS, R. E., FESZT, G., & SESTRAS, A. F. (2010). Variability of Seed Traits in Interspecific and Intergeneric Combinations between Different Genotypes of Cactaceae. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 38(3), 246-252. https://doi.org/10.15835/nbha3835424
Section
Research Articles

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