Impact of temperature and germination time on the success of a C4 weed in a C3 crop: Amaranthus retroflexus and spring barley

Hyvönen, Terho

doi:10.2137/145960611797215664

Cited by 15 publications

(13 citation statements)

References 24 publications

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“…In the current study, the seed production was measured without competition by a crop species, which may partly explain the high seed production (Maun and Barrett 1986) and thus result in an overestimate of the effects of climate warming on the fitness of C4 species (Hyvönen 2011).…”

Section: Resultsmentioning

confidence: 95%

Growth and reproductive characteristics of C4 weeds under climatic conditions of the Czech Republic

Satrapová¹,

Hyvönen²,

Venclová³

et al. 2013

PLANT SOIL ENVIRON

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Climate change could promote the altitudinal spread of C4 weed species since they can benefit from warmer climate. The effects of altitude and climatic conditions (the sum of temperatures above 5°C and precipitation) on the biomass and seed production of two annual C4 weeds -Amaranthus retroflexus L. and Echinochloa crus-galli (L.) P. Beauv. -were studied in the Czech Republic. We included both temperature and precipitation variables in the study since they both serve as basic indicators of climate change and thus they have the greatest impact on plant development. The experiment was carried out by sowing both weed species on m 2 area with four replicates in seven localities differing in altitude in 2010 and 2011. We found no significant impacts due to altitude on any variables measured. However, climatic factors explained 44.5% of the variation in plant dry biomass and 41.4% of the seed number produced by A. retroflexus. The same variables did not significantly contribute to the variation in aboveground biomass or seed number of E. crus-galli. These results show the impact of climate conditions to vary between species and not to limit reproduction at high altitudes.

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Section: Resultsmentioning

confidence: 95%

Growth and reproductive characteristics of C4 weeds under climatic conditions of the Czech Republic

Satrapová¹,

Hyvönen²,

Venclová³

et al. 2013

PLANT SOIL ENVIRON

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“…With climate change, both species are projected to extend their damage niche further north. The two species are also important maize weeds in Europe (Salonen et al 2001;Hyvönen 2011). For the UK, yield losses caused by Alopecurus myosuroides may be reduced because of climate change (Stratonovich et al 2012).…”

Section: Discussion and Implications For Agronomy And Researchmentioning

confidence: 99%

“…Composition shifts can be determined as they result from changes in the abundance and the population structure of weed species (MacArthur 1955;Elton 1958;Harlan and de Wet 1965;Singer et al 2013). For example, the current species pool in Germany (Pompe et al 2008;Bergmann et al 2010) and other European countries (Ihse 1995;Menzel et al 2006;Hyvönen 2011;Potts et al 2010) already indicates a change toward weeds that are adapted to warm and dry summer conditions.…”

Section: Niche Shiftsmentioning

confidence: 99%

Impact of climate change on weeds in agriculture: a review

Peters

Breitsameter

Gerowitt

2014

Agron. Sustain. Dev.

210

116

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Over the past decades, climate change has induced transformations in the weed flora of arable ecosystems in Europe. For instance, thermophile weeds, late-emerging weeds, and some opportunistic weeds have become more abundant in some cropping systems. The composition of arable weed species is indeed ruled by environmental conditions such as temperature and precipitation. Climate change also influences weeds indirectly by enforcing adaptations of agronomic practice. We therefore need more accurate estimations of the damage potential of arable weeds to develop effective weed control strategies while maintaining crop yield. Here we review the mechanisms of responses of arable weeds to the direct and indirect effects of climate change. Climate change effects are categorized into three distinct types of shifts occurring at different scales: (1) range shifts at the landscape scale, (2) niche shifts at the community scale, and (3) trait shifts of individual species at the population scale. Our main conclusions are changes in the species composition and new species introductions are favored, which facilitate major ecological and agronomical implications. Current research mainly considers processes at the landscape scale. Processes at the population and community scales have prevalent importance to devise sustainable management strategies. Trait-climate and niche-climate relationships warrant closer consideration when modeling the possible future distribution and damage potential of weeds with climate change.

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“…It is also notable that for several weed species, including Chenopodium rubrum L. (red goosefoot), Papaver argemone L. (long prickly head poppy), and Sinapis arvensis L. (wild mustard), a 60 % decline in suitable climate conditions in the future is predicted. These findings highlight species-specific responses to climate change and subsequent effects on their ranges, which should, however, be confirmed with field experiments that assess reproductive success outside the current ranges [80,81]. Importantly, the combined effects of northward extension of crop regions and potential climate warming trends [82] will have significant consequences for weed management in Europe, as in other continents [18,20,27].…”

Section: North Of Montana In North Americamentioning

confidence: 85%