Results 61 to 70 of about 2,221,299 (300)
Self-pollination by sliding pollen in Caulokaempferia coenobialis (Zingiberaceae) [PDF]
, 2005 Caulokaempferia coenobialis (Zingiberaceae) forms dense populations on steep cliffs in shady, humid monsoon forests in south China. It produces few consecutively opening bright yellow flowers that are 3 cm long and oriented parallel to the ground.
Chen, Zhongyi +3 more
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Sex morphs and invasiveness of a fleshy-fruited tree in natural grasslands from Argentina [PDF]
, 2017 Invasiveness has usually been studied as a species-level attribute; nevertheless, phenotypic differences between individuals in a population can lead to significant variations in colonization ability.
Amodeo, Martín Raúl +1 more
core +1 more source
Pollen Limitation in the Alpine: A Meta-Analysis [PDF]
Arctic, Antarctic, and Alpine Research, 2009 Pollen limitation (PL) is thought to be an important factor driving the evolution of floral traits in alpine plants. However, results of pollen supplementation experiments in alpine plants do not always show high levels of PL, and a general review of the importance of PL on alpine-plant reproduction is needed.
Raúl García-Camacho, Ørjan Totland
openaire +1 more source
Botanical Sciences, 2020 Background: Self-compatibility is common on endemic plant species, but pollen limitation and self-pollination could be risk factors. Study species: The endemic Cienfuegosia yucatanensis (Malvaceae), whose distribution is mainly restricted to the ...
Víctor Parra-Tabla, Conchita Alonso
doaj +1 more source
Heteranthery in Clarkia: pollen performance of dimorphic anthers contradicts expectations. [PDF]
, 2019 Premise of the studyWild plant species that require the services of pollen-feeding insects for reliable pollination may evolve features that attract and reward their mutualistic partners.
Buchmann S. L. +4 more
core +1 more source
Walailak Journal of Science and Technology, 2011 Pollen and pollinator limitation of seed initiation in Etlingera littoralis (J. König) Giseke (Zingiberaceae) in Khlong Klai Basin, Khao Nan National Park, Nakhon Si Thammarat Province, was investigated using hand and open pollination in 3 stations (A ...
Napat KITTIPANANGKUL +1 more
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Crop yield mediated by honeybees in a star fruit orchard exhibiting atypical distyly
Acta Botânica Brasílica, 2021 The dependence of commercial crops on pollinators is closely related to their reproductive strategies and has direct impacts on production yields. Fruit production of Averrhoa carambola, the star fruit, is highly dependent on bee pollination.
Reinaldo Rodrigo Novo +5 more
doaj +1 more source
Preventing a Risk/Risk Trade-off: An Analysis of the Measures Necessary to Increase U.S. Pollinator Numbers [PDF]
, 2017 This Note will proceed in four parts. Part II will discuss the importance of pollinators and the possible reasons for their declining numbers. Part III will delve into the current and proposed actions to increase pollinator populations that are taking ...
Acchiardo Vallejo, Camila
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Pollen quality limits seed set in Burchardia umbellata (Colchicaceae) [PDF]
American Journal of Botany, 2000 In self‐incompatible plants, interference by self pollen or genetically related pollen can potentially exacerbate pollen limitation, although this has rarely been demonstrated. We examined the breeding system, pollen limitation, and pollen interference using self‐ and cross‐ pollinations and pollen supplementations in Burchardia umbellata, an insect ...
Ramsey, Mark, Vaughton, Glenda
openaire +2 more sources
Biparental inbreeding depression, genetic relatedness and progeny vigor in a wind-pollinated treeline species in Argentina [PDF]
, 2009 Spatially restricted gene flow and resulting spatial genetic structure are generally considered as being the primary controlling factors in the dynamics of biparental inbreeding depression in a wide range of plant species.
Cocucci, Andrea Aristides +7 more
core +2 more sources