(Gentianaceae), including S.bimaculata , evolved a peculiar form of corolla nectaries (known as "gland patches") arranged in a conspicuous ring on the rotate corolla and that completely expose their nectar, little is known about the pollination of these plants. Two hypotheses were made ...
The relative success of selfing and cross pollination with pollen from increasing distances from maternal plants, including an interpopulation cross, was measured as seed set and seed weight, and in a consecutive glasshouse experiment as the proportion of seeds germinating, seedling weight, adult ...
Researchers have examined the effects of cultivars, preharvest growing conditions (light, plant nutrition, and age), harvest maturity, post-harvest changes (amino acid contents, growth, geotropism, pollination-induced senescence, and ethylene sensitivity), the effect of growth regulators (ethylene ...
However, there was no difference in the proportion of pollen removal from flowers of small and large plants, although the absolute number of pollen grains removed was greater for large plants. Large plants appeared to have the potential for more geitonogamous pollinations than small plants....
It is self-compatible and shows spontaneous self-pollination; visitation by pollinators is rare and does not seem to substantially account for seed Genetic structure and phylogeny based on AFLP data The three AFLP primer combinations yielded a total of 220 unambiguously scorable bands for the ...
(Gentianaceae), including S.?bimaculata, evolved a peculiar form of corolla nectaries(known as "gland patches") arranged in a conspicuous ring on the rotate corolla and that completely expose their nectar, little is known about the pollination of these plants. Two hypotheses were made concerning...
Floral syndrome and insect pollination of the Qinghai-Tibet Plateau endemic Swertia przewalskii (Gentianaceae)[J].植物分类学报,2003,(05):465-474.DuanYW(段元文) LiuJQ(刘建全).Floral syndrome and insect pollination of the Qinghai-Tibet Pla- teau endemic Swertia przewalskii (Gentianaceae)[J].植物分类...
Liu,W. K. Smith. Floral closure in response to temperature and pollination in Gentiana straminea Maxim. (Gentianaceae), an alpine perennial in the Qinghai-Tibetan Plateau[J]. Plant Systematics and Evolution . 2005 (1-4)Floral closure in response to temperature and pollination in Gentiana...
The number of seeds produced by self pollination is probably limited anatomically since flowers that were hand pollinated with pollen from a flower on the same plant (geitonogamy) did not produce significantly fewer seeds than cross pollinated flowers....
However, we share the idea that the ability of autonomous selfing can provide a backup to cope with occasional pollination failures.Ana Luisa LemosMarina Muniz MoreiraCristine Rodrigues BenevidesAmanda Soares MirandaAna Tereza Araújo RodarteHeloisa Alves de Lima...