Competition of velvetleaf (Abutilon theophrasti M.) weed with cotton (Gossypium hirsutum L.). Economic damage threshold

Cortés, Juan; Mendiola, M. A.; Castejon, M.

doi:10.5424/sjar/2010082-1184

Cited by 15 publications

(17 citation statements)

References 12 publications

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“…In trend comparison, only linear trend was significant. These results confirm the findings of Cortes et al (2010). They observed a linear increase in dry weight (kg m The same trend was observed by Morales-Payan, (2000), who reported that weed dry biomass was increased linearly as parthenium plant densities were increased 1 to 13 plants m …”

Section: Growth and Nutrient Uptake Of P Hysterophorus Parthenium Drsupporting

confidence: 90%

ESTIMATING YIELD LOSSES AND ECONOMIC THRESHOLD LEVEL OF Parthenium hysterophorus IN FORAGE SORGHUM

et al. 2017

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Section: Growth and Nutrient Uptake Of P Hysterophorus Parthenium Drsupporting

confidence: 90%

ESTIMATING YIELD LOSSES AND ECONOMIC THRESHOLD LEVEL OF Parthenium hysterophorus IN FORAGE SORGHUM

et al. 2017

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“…Redroot pigweed at high densities resulted in strong shading of the cotton plants and prevented them from reaching their typical height; this is consistent with the competitive effect of velvetleaf ( Abutilon theophrasti ) on cotton observed by Cortés et al . [ 36 ]. The impact of increasing weed densities on the stem diameters followed similar trend in both cotton and redroot pigweed.…”

Section: Resultsmentioning

confidence: 99%

Interference between Redroot Pigweed (Amaranthus retroflexus L.) and Cotton (Gossypium hirsutum L.): Growth Analysis

Wu²,

Jiang

et al. 2015

PLoS ONE

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Redroot pigweed is one of the injurious agricultural weeds on a worldwide basis. Understanding of its interference impact in crop field will provide useful information for weed control programs. The effects of redroot pigweed on cotton at densities of 0, 0.125, 0.25, 0.5, 1, 2, 4, and 8 plants m-1 of row were evaluated in field experiments conducted in 2013 and 2014 at Institute of Cotton Research, CAAS in China. Redroot pigweed remained taller and thicker than cotton and heavily shaded cotton throughout the growing season. Both cotton height and stem diameter reduced with increasing redroot pigweed density. Moreover, the interference of redroot pigweed resulted in a delay in cotton maturity especially at the densities of 1 to 8 weed plants m-1 of row, and cotton boll weight and seed numbers per boll were reduced. The relationship between redroot pigweed density and seed cotton yield was described by the hyperbolic decay regression model, which estimated that a density of 0.20–0.33 weed plant m-1 of row would result in a 50% seed cotton yield loss from the maximum yield. Redroot pigweed seed production per plant or per square meter was indicated by logarithmic response. At a density of 1 plant m-1 of cotton row, redroot pigweed produced about 626,000 seeds m-2. Intraspecific competition resulted in density-dependent effects on weed biomass per plant, a range of 430–2,250 g dry weight by harvest. Redroot pigweed biomass ha-1 tended to increase with increasing weed density as indicated by a logarithmic response. Fiber quality was not significantly influenced by weed density when analyzed over two years; however, the fiber length uniformity and micronaire were adversely affected at density of 1 weed plant m-1 of row in 2014. The adverse impact of redroot pigweed on cotton growth and development identified in this study has indicated the need of effective redroot pigweed management.

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“…Velvetleaf is now a common and troublesome weed in several crops such as maize (Zea mays L.) (Lindquist et al, 1996;McDonald et al, 2004), soybean [Glycine max (L.) Merr.] (Akey et al, 1991;Begonia et al, 1991;Ziska, 2012), cotton (Gossypium hirsutum L.) (Cortés et al, 2010), and grain sorghum [Sorghum bicolor (L.) Moench] (Traoré et al, 2003). In recent decades, velvetleaf has become an increasingly problematic weed in cotton field in central China (Ma et al, 2016).…”

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confidence: 99%

Effects of Environmental Factors on Seed Germination and Emergence of Velvetleaf (Abutilon theophrasti)

Xiong

Ying-jie

et al. 2018

Planta daninha

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Velvetleaf, an annual broadleaf weed, is a common and troublesome weed of cropping systems worldwide. Laboratory and field experiments were conducted to determine the effects of environmental factors on germination and emergence of velvetleaf. Seeds germinated over a range of constant temperatures from 10 to 40 oC regardless of light conditions, but no germination occurred at temperature below 5 oC and beyond 50 oC. Seeds germinated at alternating temperature regimes of 15/5 to 40/30 oC, with maximum germination (>90%) at alternating temperatures of 40/30 oC. Germination was sensitive to water stress, and only 0.4% of the seeds germinated at the osmotic potential of -0.4 MPa. There was no germination at ? 0.6 MPa. Moreover, germination was reduced by saline and alkaline stresses and no germination occurred at ³ 150 mM NaCl or ³ 200 mM NaHCO3 concentrations. However, pH values from 5 to 9 had no effect on seed germination. Seedling emergence was significantly affected by burial depth and maximum emergence (78.1-85.6%) occurred at the 1-4 cm depth. The results of this study have contributed to our understanding of the germination and emergence of velvetleaf and should enhance our ability to improve control strategies in cropping systems in central China.

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Competition of velvetleaf (Abutilon theophrasti M.) weed with cotton (Gossypium hirsutum L.). Economic damage threshold

Cited by 15 publications

References 12 publications

ESTIMATING YIELD LOSSES AND ECONOMIC THRESHOLD LEVEL OF Parthenium hysterophorus IN FORAGE SORGHUM

ESTIMATING YIELD LOSSES AND ECONOMIC THRESHOLD LEVEL OF Parthenium hysterophorus IN FORAGE SORGHUM

Interference between Redroot Pigweed (Amaranthus retroflexus L.) and Cotton (Gossypium hirsutum L.): Growth Analysis

Effects of Environmental Factors on Seed Germination and Emergence of Velvetleaf (Abutilon theophrasti)

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