The biology of Canadian weeds. 131. <i>Polygonum aviculare</i> L.

Costea, Mihai; Tardif, François J.

doi:10.4141/p03-187

Cited by 35 publications

(19 citation statements)

References 115 publications

(98 reference statements)

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“…Another important annual on public pavements was P. aviculare . This species is known to be very trampling tolerant, as the plants have the capacity to regenerate from axillary buds if the apex is removed (Costea & Tardif, 2005). Poa annua is also a trampling‐tolerant annual weed (Warwick, 1979).…”

Section: Discussionmentioning

confidence: 99%

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Weed flora in paved areas in relation to environment, pavement characteristics and weed control

et al. 2011

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By 2015, all herbicide use on public pavements in Flanders (northern region of Belgium) will be phased out. Currently, little is known about weed flora in these pavements or their interactions with different weed control methods. The objectives of this study were to explore the species composition of pavements in relation to various abiotic factors and applied weed control methods. A vegetation survey was conducted on 163 public pavements constructed with small paving elements across Flanders. Botanical composition was determined, and a score for street scene perception was calculated. For each pavement, a set of environmental conditions and technical characteristics was determined, and data on the applied weed control methods were collected. Apart from Musci (mosses), the most important plant species were Poa annua, Sagina procumbens, Conyza canadensis, Taraxacum officinale and Plantago major. Weed species composition and street scene perception were affected by intensity of use, joint width and light intensity. Weed prevention measures may be built into the construction of pavements by manipulating light, joints and use in their design. Repeated use of a single weed control method caused shifts in weed flora. This suggests that more optimal weed control on pavements is likely to be achieved by alternating weed control methods

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Section: Discussionmentioning

confidence: 99%

“…These species have the ability to regrow quickly, even after defoliation. Strong, decumbent spreading annuals (such as P. aviculare ) can withstand mechanical weed control (Costea & Tardif, 2005). Chemical control resulted in a higher importance of mosses and liverworts.…”

Section: Discussionmentioning

confidence: 99%

Weed flora in paved areas in relation to environment, pavement characteristics and weed control

et al. 2011

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“…Although it is considered a summer annual weed (spring emerging) (Costea & Tardif, ), P. aviculare emergence can start in winter in north‐eastern Spain, thus competing with winter crops throughout the growing season. Seeds of P. aviculare must undergo a moist cold period (stratification) to germinate (Batlla et al ., ), which happens during autumn.…”

Section: Introductionmentioning

confidence: 99%

Describing Polygonum aviculare emergence in different tillage systems

et al. 2015

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Summary Effects of four tillage systems (direct drill, subsoiler, chisel plough and mouldboard plough) on the dynamics of Polygonum aviculare populations were studied over three growing seasons. Cumulative emergence on a weekly basis was determined. Cumulative emergence from two years of chisel ploughing was used to develop an emergence model for P. aviculare based on hydrothermal time. Results showed that direct drilling, which had the highest seed yields of winter cereal crops every season, was the unique soil management system that lowered P. aviculare populations because of effective weed emergence reduction. The model accurately described seedling emergence in different tillage systems, although it failed in direct drilling, probably due to very low numbers of emerged seedlings. To better control this weed, direct drilling may be the best tillage option, but if this cannot be implemented, the hydrothermal time model is a practical tool that can describe the relative proportions of emergence and assist in the timing for management operations of P. aviculare in different tillage systems.

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“…Polygonum aviculare L. (knotgrass, yard knotweed) is a common summer annual weed in the cropland of temperate and subtropical countries and is probably one of the most widespread weeds in the world (Holm et al. , 1997; Costea & Tardif, 2005). Mature seeds of this species have dormant embryos that must undergo a period of moist cold after‐ripening (stratification) to germinate.…”

Section: Introductionmentioning

confidence: 99%

A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

et al. 2009

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Summary Mathematical models that predict emergence of weed seedbanks could be useful tools for determining the most suitable time for weed seedling control and, consequently, should result in a higher efficacy of applied control methods. To achieve this goal in dormant weed species, functional relationships should be established between environmental factors regulating dormancy and dormancy changes of seed populations. In the present work, we used a simple model and an optimisation procedure to quantify the effect of temperature on Polygonum aviculare seed dormancy release and induction, based on germination data. Dormancy release rate was inversely related to temperature, showing a decreasing logistic trend that results in no dormancy release for seeds exposed to 20 and 25°C. In contrast, dormancy induction rates in absolute values were positively associated with temperature, showing a logistic trend in which dormancy induction was almost zero at low temperatures and maximal at 25°C. Derived model parameters were used to simulate dormancy changes of P. aviculare seeds stored under controlled and field conditions. These results suggest that similar model structures could be used to quantify temperature effects on seed dormancy status of other weed species and to develop predictive models of weed emergence.

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The biology of Canadian weeds. 131. Polygonum aviculare L.

Cited by 35 publications

References 115 publications

Weed flora in paved areas in relation to environment, pavement characteristics and weed control

Weed flora in paved areas in relation to environment, pavement characteristics and weed control

Describing Polygonum aviculare emergence in different tillage systems

A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

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