Results 41 to 50 of about 2,322 (185)

Duodichogamy and androdioecy in the Chinese Phyllanthaceae Bridelia tomentosa [PDF]

, 2007
Flowering plants commonly separate male and female function in time, but rarely are the two stages synchronized within and among individuals. One such temporal mating system is duodichogamy in which each plant produces two batches of male flowers that ...
Luo, Shixiao, Renner, Susanne S., Zhang, Dianxiang   +2 more
core   +1 more source

Reproductive assurance through autogamous self-pollination across diverse sexual and breeding systems [PDF]

, 2015
Pollination becomes a constraint when conspecific plants and/or their pollinators become scarce. Many plant species have evolved autogamous self-pollination as a means of reproductive assurance (RA) under pollination-uncertain environments. So far RA has
Shivanna, KR
core   +1 more source

Sex and Size in Cosexual Plants [PDF]

, 1997
There are conceptual and practical difficulties in measuring the exact shape of fitness-gain curves and sex allocation, and these hamper empirical testing of some of the predictions of sex allocation theory for plants.
Jong, T.J. de, Klinkhamer, P.G.L., Metz, J.A.J.   +2 more
core   +1 more source

Do rewardless orchids show a positive relationship between phenotypic diversity and reproductive success? [PDF]

, 2007
Among rewardless orchids, pollinator sampling behavior has been suggested to drive a positive relationship between population phenotypic variability and absolute reproductive success, and hence population fitness.
Gigord, L. D., Juillet, N., Macnair, M. R., Smithson, A.   +3 more
core   +1 more source

Pollination ecology and fruiting behavior of Pavetta indica L. (Rubiaceae), a keystone shrub species in the southern Eastern Ghats forest, Andhra Pradesh, India

Journal of Threatened Taxa, 2016
Pavetta indica is a massive bloomer for a brief period in May.  The flowers are hermaphroditic, strikingly protandrous, self and cross-compatible, nectariferous and psychophilous.  They possess secondary pollen presentation mechanism as a device to avoid
A.J. Solomon Raju, M. Mallikarjuna Rao, K. Venkata Ramana, C. Prasada Rao, M. Sulakshana   +4 more
doaj   +1 more source

Nolana balsamiflua (Gaudich.) Mesa (Solanaceae), un arbusto vulnerable del desierto de Atacama dependiente de polinizadores para producir semillas

Gayana: Botanica, 2019
Pollinator-dependency for reproduction is of great importance for plants. We evaluated the breeding system of Nolana balsamiflua, a threatened endemic shrub of the Atacama Desert, performing four pollination trials.
Ana María Humaña, Alberto Jimenez, Carlos E. Valdivia   +2 more
doaj   +1 more source

A test for Allee effects in the self-incompatible wasp-pollinated milkweed Gomphocarpus physocarpus [PDF]

, 2009
It has been suggested that plants which are good colonizers will generally have either an ability to self-fertilize or a generalist pollination system. This prediction is based on the idea that these reproductive traits should confer resistance to Allee ...
Allee, Baker, Bookman, Brown, Cappuccino, Charlesworth, Ciotek, Courchamp, Davis, de Jong, Elam, Ellstrand, Fenster, Forster, Frost, Gess, Goulson, Grindeland, Groom, Harder, Herlihy, Ivey, Johnson, Johnson, Johnson, Klinkhamer, Kunin, Kunin, Leimu, Leimu, Liebhold, Liede, Lipow, Lipow, Mant, Moore, Moore, Ollerton, Ollerton, Oostermeijer, Orchard, Pauw, Peter, Pleasants, Queller, Sahagun-Godinez, Schmidt-Hempel, Shuttleworth, Sparrow, Steiner, Stephens, Stephens, Taylor, Thompson, Van Kleunen, Van Treuren, Vieira, Wagner, Ward, Weiblen, Wyatt, Wyatt, Wyatt, Ågren   +63 more
core   +3 more sources

First report on the pollination of Neotinea maculata (Orchidaceae) by minor worker ants of the Temnothorax exilis group (Hymenoptera: Formicidae)

Mediterranean Botany, 2021
Ants commonly visit flowers seeking for food resources such as nectar. However, only eight species of orchids are known for having an effective pollinaria removal by ants.
Jaime García-Gila, Javier Blasco-Aróstegui   +1 more
doaj   +1 more source

Integrated characterization of Greek fennel genotypes through morpho‐agronomical characteristics, yield components and phytochemical compounds

JSFA reports, Volume 5, Issue 3, Page 91-103, March 2025.
Abstract Background Fennel (Foeniculum vulgare Mill.) is a widely cultivated vegetable and aromatic‐medicinal plant. In this research, field studies assessed 12 fennel genotypes of diverse origin, comprising 10 Greek accessions and two European commercial varieties, focusing on their morpho‐agronomical traits, phenolic compounds and antioxidant ...
Kalliopi I. Kadoglidou, Christos Maliachovas, Parthenopi Ralli, Maria Irakli, Nektaria Tsivelika, Athanasios G. Mavromatis, Paschalina Chatzopoulou   +6 more
wiley   +1 more source

Ants contribute to pollination but not to reproduction in a rare calcareous grassland forb [PDF]

PeerJ, 2018
The number of plants pollinated by ants is surprisingly low given the abundance of ants and the fact that they are common visitors of angiosperms. Generally ants are considered as nectar robbers that do not provide pollination service.
Michael Rostás, Felix Bollmann, David Saville, Michael Riedel   +3 more
doaj   +2 more sources