Flowering phenology and female reproductive success in Silene acutifolia Link ex Rohrb

详细信息    查看全文

• 作者：Buide ; Marí ; a Luisa ; Dí ; az Peromingo ; José ; Antonio ; Guiti&aacute ; n ; Javier
• 关键词：Caryophyllaceae ; Flowering synchrony ; Flowering time ; Fruit set ; Phenotypic selection ; Seed set
• 刊名：Plant Ecology
• 出版年：2002
• 出版时间：2002
• 年：2002
• 卷：163
• 期：1
• 页码：93-103
• 全文大小：515 KB

文摘

We investigated flowering phenology and female reproductive success intwo populations of Silene acutifolia in northwest Spain,over one year (population A) or two consecutive years (population B). Floweringphenology was similar in the two populations and two years. However,significantinterannual and interindividual variation was detected in flowering start date,flowering finish date, flowering duration, relative flowering intensity,flowering synchrony index, and median flowering date (the date on which half aplant's flowers had opened). The between-year differences may be partlyattributable to the fact that the first year was markedly warmer than thesecondyear. The order in which individual plants started flowering was highlyconsistent between years, which may reflect genetic control and/or microhabitatheterogeneity. Multiple regressions with fruit set or seed set as the responsevariables indicated that none of the phenology descriptors, or number offlowers, were significant predictors of female reproductive success.