Results 261 to 270 of about 47,134 (295)
Some of the next articles are maybe not open access.
Heteroblasty and the Evolution of Flowering Phenologies
International Journal of Plant Sciences, 1999Flowering phenologies have rarely been examined from a developmental perspective. The production of a flower or inflorescence, however, is an integral part of the ontogeny and architecture of an organism. As a result, basic features of plant developmental morphology have the potential to define options for variation in phenology and to determine, in ...
openaire +2 more sources
Long‐term trends in global flowering phenology
New PhytologistSummary Flowering phenology is an indicator of the impact of climate change on natural systems. Anthropogenic climate change has progressed over more than two centuries, but ecological studies are mostly short in comparison. Here we harness the large‐scale digitization of herbaria specimens to investigate temporal trends in flowering phenology at a ...
David R. Williamson +7 more
openaire +2 more sources
Context-dependent conflicting selection on flowering phenology
Proceedings of the Royal Society B: Biological SciencesClimate change will affect precipitation and water availability in natural plant populations, potentially influencing phenology, fitness and natural selection. To examine how water availability affects non-pollinator- and pollinator-mediated selection on flowering phenology in Primula tibetica
Yun Wu +4 more
openaire +2 more sources
Year clustering analysis for modelling olive flowering phenology
International Journal of Biometeorology, 2012It is now widely accepted that weather conditions occurring several months prior to the onset of flowering have a major influence on various aspects of olive reproductive phenology, including flowering intensity. Given the variable characteristics of the Mediterranean climate, we analyse its influence on the registered variations in olive flowering ...
J, Oteros +3 more
openaire +2 more sources
Argania spinosa (L.) Skeels flowering phenology
Genetic Resources and Crop Evolution, 2002Argan (Argania spinosa (L.)Skeels) flowering was observed at Ait Melloul, Ait Baha andArgana, three sites in the south-west of Morocco during twoseasons, 1994–95 and 1995–96. Glomerule count wasmonitored on first-year and on last-year growth shootevery twenty days.
openaire +1 more source
Predicting olive flowering phenology with phenoclimatic models
Acta Horticulturae, 2018In plants, day length and temperature are the major climatic factors that affect the transition from a phenological phase to the next one. Non-linear models, such as growing degree hours (GDH), have been successfully used to calculate thermal time required for spring bud burst in deciduous fruit trees.
Marra, F. P. +3 more
openaire +1 more source
Flower production and phenology in Dactylis glomerata
Aerobiologia, 2015The species Dactylis glomerata is one of the most important sources of airborne grass pollen in the atmosphere of temperate countries. The aim of this study was to determine the relationship between flowers, weather and the contribution of their pollen in the air.
Rafael Tormo-Molina +4 more
openaire +1 more source
Among‐individual variation in flowering phenology affects flowering synchrony and mating opportunity
American Journal of BotanyAbstractPremiseThe timing and pattern of a plant's flowering can have important consequences for reproductive success. Variation in flowering phenology may influence the number of prospective mates, the risk of mating with lower quality individuals, and the likelihood of self‐pollination.
Wendy R. Shelton +4 more
openaire +2 more sources
Effects of Microclimate on Spring Flowering Phenology
Ecology, 1966Sixteen microclimatic stations with differences in slope, exposure, vegetation cover, and seasonal change were established in a heavily dissected 180—acre Indiana tract. Correlations, based on cumulative air temperature duration—summations, were made between microclimatic differences and variation in phenological events.
openaire +1 more source