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Pollen starch reserves in tomato relatives: Ecophysiological implications
(Taylor & Francis As, 2007-12)
The presence or absence of starch in microspore development and in pollen grains was recorded in eleven wild tomato species (Solanum sect. Lycopersicon) and two close relatives (S. lycopersicoides and S. sitiens). In all ...
Pollen and stigma morphology of some Phaseoleae species (Leguminosae) with different pollinators
(WILEY-BLACKWELL, 2011)
Pollen transport to a receptive stigma can be facilitated through different pollinators, which submits the pollen to different selection pressures. This study aimed to associate pollen and stigma morphology with zoophily ...
Pollen reinforces learning in honey bee pollen foragers but not in nectar foragers
(Company of Biologists, 2020-11-16)
Searching for reward motivates and drives behaviour. In honey bees Apis mellifera, specialized pollen foragers are attracted to and learn odours with pollen. However, the role of pollen as a reward remains poorly understood. ...
Tomato pollen tube development and carbohydrate fluctuations in the autotrophic phase of growth
(Springer Heidelberg, 2012-11)
Ripe pollen has different soluble and insoluble carbohydrates in variable amounts. Pollen germination and pollen tube growth were studied in a tomato cultivar (Solanum lycopersicum L. cv. Platense) with atypical pollen ...
Pollen-pistil relationships and pollen size-number trade-off in species of the tribe Lycieae (Solanaceae)
(Springer Tokyo, 2002-12)
Pollen volume may be involved in different associations with other floral traits. Particularly, the literature indicates that pollen volume can be implicated in a functional relationship with pistil length, and that it may ...
Pollen types of Sapindaceae from Brazilian forest fragments: apertural variation
(Soc Botanica Brasil, 2020-04-01)
Morphological variations in angiosperm pollen grains may aid in the differentiation of families, genera and species. Sapindaceae pollen morphology holds promise for the recognition of taxa of this cosmopolitan family, which ...
Pollen Reference Collection of Plants of Puerto Rico
(External Scientific Advisory Committe (ESAC), 2012)
Effects of pollen quality and quantity on pollen limitation in Crataegus monIncioogyna (Rosaceae) in NW Spain.
(Elsevier Gmbh, 2008-12)
Pollen limitation occurs when plants produce less fruits and/or seeds than they would with adequate pollen receipt. If the addition of cross-pollen to stigmas increases fruit/seed production, it is interpreted as an evidence ...
A method for harvesting unfermented pollen from stingless bees (Hymenoptera, Apidae, Meliponini)
(INT BEE RESEARCH ASSOCCARDIFF, 2012)
Pollen traps used for harvesting pollen from Apis mellifera do not work for stingless bees, as most species have small entrances and rapidly deposit large quantities of propolis at any barrier in front of the nest. Some ...