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Reproductive biology of the critically endangered endemic Mediterranean plant Coincya rupestris subsp. rupestris (Spain): the effects of competition and summer drought on seedling establishment RChHN
COPETE,MIGUEL A; HERRANZ,JOSÉ M; FERRANDIS,PABLO.
Flower, fruit, seed production, and flowering phenology (duration, intensity, moment and synchrony) were studied in the two main populations (south east Spain) of the critically endangered endemic Mediterranean plant Coincya rupestris subsp. rupestris (Cruciferae). Production of flowers and fruits (mean ± SD) ranged from 483 (± 688) to 748 (± 636), and from 317 (± 518) to 553 (± 500), respectively, between populations. In addition, the average seed production per plant was 1,607-2,798, thus concluding that fertility was not responsible for the rarity of this taxon. The fruit/flower ratio ranged from 0.60 to 0.75, showing significant inter-population differences. Flowering extended from February-March to the end of spring, with high synchrony (= 85 %). This...
Tipo: Journal article Palavras-chave: Iberian endemism; Flowering phenology; Reproductive success; Seedling recruitment.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000300004
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Reproductive biology of Amasonia obovata Gleason (Laminaceae) Acta Amazonica
Schvinn,Thays de Assis; Miranda,Anderson Fernandes de; Silva,Celice Alexandre.
Floral mechanisms that ensure seed production via autogamy are more likely to occur in species growing in environments where pollination is scarce. Amasonia obovata was studied in the State of Mato Grosso-Brazil, from 2009 to 2012, to analyze the morphological and reproductive characteristics, aside from investigating the association of the reproductive success with the pollinator frequency and identity. The flowering and fruiting of A. obovata was concentrated in a period of five months during the rainy season. The dichogamy in flowers of A. obovata is not clearly defined, since the sexual functions were overlapped in the male and female phases. The species is self-compatible and not apomictic. The fruiting percentage obtained by hand self-pollination did...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Autogamy; Floral morphology; Flowering phenology; Hummingbird.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000400004
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