Pollen Release in the Common Ragweed (Ambrosia artemisiifolia)

Bianchi, D. E.; Schwemmin, D. J.; Wagner, Warren H.

doi:10.1086/336030

Cited by 81 publications

(55 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The minimum temperature during the 24 h-cycle is also important as it determines whether anthers will dehisce or not. This is corrobated in studies from different taxa, such as Poaceae (Galán et al 1995 ), Cupressaceae and Olea europea (Cariñanos et al 2010 ) , Urticaceae (Galán et al 2000 ) , and Ambrosia artemisiifolia (Bianchi et al 1959 ) .…”

Section: Anther Dehiscencementioning

confidence: 88%

See 1 more Smart Citation

The Onset, Course and Intensity of the Pollen Season

et al. 2012

View full text Add to dashboard Cite

The onset, duration and intensity of the period when pollen is present in the air varies from year to year. Amongst other things, there is an effect upon the quality of life of allergy sufferers. The production and emission of pollens are governed by interacting environmental factors. Any change in these factors may affect the phenology and intensity of the season. Readiness to fl ower in a plant, and the amount of pollen produced, is the result of conditions during an often long period foregoing fl owering. When a plant is ready to fl ower, temporary ambient circumstances e.g., irradiation and humidity, determine the timing of the actual

show abstract

Section: Anther Dehiscencementioning

confidence: 88%

“…3.4e ), at least of the pollen grains that still remain in the anthers after dehiscence, or in the open space between them. The result is a bimodal pollen release (Bianchi et al 1959 ;Martin et al 2010 ) .…”

Section: Diurnal Patterns Of Pollen Releasementioning

confidence: 99%

The Onset, Course and Intensity of the Pollen Season

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Among wind-pollinated species, pollen can be carried over long distances (Hjelmroos, 1991) and pollen release tends to occur quite synchronously (Rabinowitz et al, 1981) in association with dry, warm conditions (Biancchi et al, 1959 ;Ka$ pyla$ , 1984), which increases the probability of mixed pollen loads. Wind-pollinated species have several kinds of mechanism for catching pollen, such as the closely fitting catkin scales of Betula and Corylus species, which make the pollination more effective (Faegri & van der Pijl, 1971).…”

Section: mentioning

confidence: 99%

Pollen‐tube growth rate and seed‐siring success among Betula pendula clones

et al. 1999

View full text Add to dashboard Cite

The aim of this study was to investigate whether genetically different pollen donors (Betula pendula clones) differed in pollen-tube growth rate across 11 maternal plants and in vitro, and whether the differences between the donors were consistent across the recipients. To compare the seed-siring success of competing pollen donors, a two-donor hand-pollination experiment with six donors and six recipients was conducted. The experiments were performed at a plastic-house seed orchard. The donors showed significant variation in pollen-tube growth rate on all the 11 recipients. The rankings of the pollen donors were statistically consistent across different maternal plants. A significant positive correlation between pollen tube growth in vivo and in vitro was found. The seedsiring success of two competing pollen donors was unequal in 20 of 29 cases and there was a significant positive correlation between seed-siring success and pollen-tube growth rate in vivo and in vitro. The results show that fertilizations are not random and pollen competition operates in a B. pendula seed orchard population.

show abstract

“…Experimental studies on excised ragweed fl owers and whole plants confi rmed that the opening of fl owers can be controlled by regulating temperature and relative humidity. Lower temperature slows down or inhibits extension of anthers while higher humidity delays or stops the opening of pollen sacs (40). The role of rainfall in daily pollen counts is not clear.…”

Section: Variable Rankingmentioning

confidence: 99%

Associations between weather conditions and ragweed pollen variations in Szeged, Hungary

Matyasovszky

Makra

Csépe

2012

Archives of Industrial Hygiene and Toxicology

View full text Add to dashboard Cite

This study analyses potential associations between day-to-day variations in common ragweed pollen counts in the southern Hungarian district of Szeged and meteorological variables using adapted factor analysis. The database includes ten years (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006) worth of data on daily common ragweed pollen ratios (value on the given day per value on the day before) and daily differences (value on the given day minus value on the day before) in eight meteorological variables (mean temperature, minimum temperature, maximum temperature, temperature range, irradiance, relative humidity, wind speed, and rainfall) over the ragweed pollen season. This method is new, as it has only been applied in the economics. In factor analysis it is advisable to combine all the weights of the factors and the resultant variable into one factor indicating the rank of importance of the given explanatory variables in infl uencing the resultant variable, while the remaining factors are uncorrelated with the resultant variable. The procedure shows that wind speed, rainfall, and temperature range are the most important, while minimum temperature and irradiance are the least important meteorological variables infl uencing daily pollen ratios. We found a tendency to stronger associations between the meteorological variables and the pollen variable when the pollen ratio was 1 or below. This is due to the fact that data corresponding to the pollen ratio over 1 come mainly from the prepeak pollen season, while data corresponding to less than 1 are characteristic of the post-peak pollen season (late summer to early autumn).

show abstract

Pollen Release in the Common Ragweed (Ambrosia artemisiifolia)

Cited by 81 publications

References 0 publications

The Onset, Course and Intensity of the Pollen Season

The Onset, Course and Intensity of the Pollen Season

Pollen‐tube growth rate and seed‐siring success among Betula pendula clones

Associations between weather conditions and ragweed pollen variations in Szeged, Hungary

Contact Info

Product

Resources

About