Results 101 to 110 of about 1,101 (151)

Pollination boilogy and breeding system of Eugenia discifera Gamble An endangered species of Western Ghats, India. [PDF]

, 2015
Knowledge of the pollination biology and breeding systems is very important for understanding the life history of long - lived tree species. In case of endangered species, the information may have implication for conservation practices.
Keshavanarayan, P., Rajkumar, K., Sivaram, P.   +2 more
core  

Apis mellifera pollination improves agronomic productivity of anemophilous castor bean (Ricinus communis)

Anais da Academia Brasileira de Ciências, 2012
Castor bean (Ricinus communis L.) is cultivated mainly for biodiesel production because of its oil-rich seeds; it is assumed to be an anemophylous species. But pollination deficit can lead to low productivity often attributed to other reasons.
Rômulo A.G. Rizzardo, Marcelo O. Milfont, Eva M.S. da Silva, Breno M. Freitas   +3 more
doaj  

Supplement 1. Primary data used for analyses of the frequency of pollination modes and data used for analyses of insect-pollinated plant species.

, 2016
File List f_pol_mod.txt - frequency of pollination modes ins_pol_spec.txt - insect-pollinated plant species Description Data stored in txt files (semicolon delimited text files with header) f_pol_mod.txt - Frequency of pollination modes Status: native ...
Petr Pyšek (124962), JiÅ™í Danihelka (2932959), Jacobus C. Biesmeijer (186141), Josef Settele (70383), Lubomír Tichý (2913671), Milan Chytrý (442541), VojtÄ203Ach Jarošík (2932962), William E. Kunin (381493), Ingolf Kühn (512863), Jan Pergl (124971), Willem N. Ellis (2932965)   +10 more
core   +1 more source

Evolution from mixed to fixed handedness in mirror-image flowers: insights from adaptive dynamics

bioRxiv
Mirror-image flowers (enantiostyly) involve a form of sexual asymmetry in which a flower’s style is deflected either to the left or right side, with a pollinating anther orientated in the opposite direction.
Marco Saltini, S. Barrett, E. Deinum
semanticscholar   +1 more source

Mixed mating systems in Hawaiian Bidens (Asteraceae)

, 1988
Protandry and male sterility promote outcrossing, while self-compatibility and geitonogamy contribute to inbreeding. The combination of these floral mechanisms results in a mixed mating system in all species studied.
Ganders, FR, Sun, M
core  

Comparative Pollen Morphology and Ultrastructure of the Callitrichaceae

, 2000
The Callitrichaceae are an aquatic family of dicots that include the single, geographically cosmopolitan genus Callitriche. Calliltriche contains 40-50 terrestial, amphibious, and oligately submersed species, and it is the only known genus in the plant ...
Osborn, Jeffrey, Cooper, Ranessa, Philbrick, Tom   +2 more
core  

Reproductive Success and Insect Visitation in Wild Roses (Rosa spp.) – Preliminary Results from 2004

, 2007
The hips of wild roses (Rosa spp.) contain many healthful compounds such as vitamins and antioxidants. There is great interest in commercial cultivation but before this can occur, questions regarding plant reproduction and pollinators need to be ...
Kevan, Peter G., MacPhail, Victoria J.
core   +1 more source

Effects of inbreeding, outbreeding, and supplemental pollen on the reproduction of a hummingbird-pollinated clonal amazonian herb

, 2010
Understory herbs are an essential part of tropical rain forests, but little is known about factors limiting their reproduction. Many of these herbs are clonal, patchily distributed, and produce large floral displays of nectar-rich 1-d flowers to attract ...
Mathias Templin, Diethart Matthies, Matthies, Diethart, Walter Durka, Durka, Walter (Dr.), Vicky Huamán, Thomas Becker, Giovana P. Vadillo, Markus Fischer, Matthias Schleuning, Becker, Thomas, Fischer, Markus, Vadillo, Giovana P., Schleuning, Matthias, Durka, Walter, Huamán, Vicky, Templin, Mathias   +16 more
core   +1 more source

The influence of pollinators on the maintenance of mixed mating in a population of the blue columbine, Aquilegia coerulea (Ranunculaceae)

Pollination ecology may play an important role in the maintenance of selfing in populations of self-compatible hermaphroditic plants where both selfing and outcrossing occur (mixed mating).
Sweet, Heather R.
core  

Selection and Floral Evolution in Platanthera bifolia and P. chlorantha (Orchidaceae) [Elektronisk resurs]

, 2002
Natural selection mediated by pollinators has influenced the evolution of floral diversity of the flowering plants (angiosperms). The scope of this thesis was to study: 1) phenotypic selection, 2) mating systems, and 3) floral shifts involved in plant ...
Fenster, Charles B.,, Maad, Johanne,
core