Flowering and reproductive performance of Iris variegata genotypes in different light conditions
2015
Аутори:
Živković, UrošMiljković, Danijela
Barišić Klisarić, Nataša
Tarasjev, Aleksej
Avramov, Stevan
Остала ауторства
Uzelac, BrankaТип документа:
Конференцијски прилог (Објављена верзија)
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© 2015 by the Serbian Plant Physiology Society
Метаподаци
Приказ свих података о документуАпстракт:
Plants grown under canopy shade show a range of responses to the change in light quantity as well as
in red/far-red ratio of the ambient light, i.e. light quality. These responses, known as the shade-avoidance syndrome, or near neighbor detection response, are characterized, among others, by changes in flowering phenology and reproductive output. The individual’s flowering pattern is defined by the timing or temporal distribution of flowering (start of flowering, average flowering period), the duration of flowering, as well as the number of flowers produced. We analyzed the genetic variability and phenotypic plasticity of flowering pattern and reproductive success in 97 genotypes of Iris variegata originating from contrasting light habitats in Deliblato Sands and expressed under different experimental light conditions. Rhizome segments were taken from each of these clones and transplanted in the experimental garden near the Institute for Biological Research in Belgrade. Significant differences between genotypes were found for two traits (start of flowering, average flowering time). Genotypes originating from open and understory habitats significantly differed in three traits (number of flowers, number of capsules/number of flowers, seed mass/capsule). Significant effect of light treatment was found for three traits (number of capsules/number of flowers, seed mass/capsule, average seed mass). Statistically significant correlations between explored traits were generally similar but also to some extent habitat- and treatment-specific. Comparing these results with research carried out on congeneric
species we noted that there were similar responses for some traits, but also significant differences in
some components of flowering and fruiting success.
Кључне речи:
genetic variability; Iris variegata; light environment; flowering phenology; reproductive outputФинансирање / пројекти:
- Еволуција у хетерогеним срединама: механизми адаптација, биомониторинг и конзервација биодиверзитета (RS-MESTD-Basic Research (BR or ON)-173025)
У:
- Uzelac B, editor. Book of Abstracts: 2nd International Conference on Plant Biology, 21th Symposium of the Serbian Plant Physiology Society, and CОST Action FA1106 Quality Fruit Workshop; 2015 Jun 17-20; Petnica, Serbia. Belgrade: Serbian Plant Physiology Society: Institute for Biological Research “Siniša Stanković”; 2015. p. 139-40.