Adverse Effect of Bermudagrass on Physiological and Growth Components of Cotton

Bouchagier, Pavlos; Efthimiadou, Αspasia; Katsileros, Anastasios; Bilalis, Dimitrios; Efthimiadis, P.

doi:10.3923/ja.2008.49.55

Cited by 11 publications

(9 citation statements)

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“…Stomatal area on adaxial leaf surface also decreased in most of the cases, but increased on abaxial side. Abaxial surface is generally more exposed to sun in wheat (Bouchagier et al, 2008). A decrease in stomatal size and number on adaxial side is more beneficial for a plant for regulation of transpiration rate (Jose and Gillespie, 1998).…”

Section: Discussionmentioning

confidence: 99%

Ultrastructural response of wheat (Triticumaestivum L.) lines to potential allelopathy of Alstoniascholaris (L.) R. Br. leaf extract

Hameed¹,

Fatima²,

Shah³

et al. 2020

Turk J Bot

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An investigation was carried out to evaluate the impact of the allelopathic effect of Alstonia scholaris leaf extract on morphoanatomical and physiological characteristics of 5 wheat lines. Three extract dilutions were prepared, viz. 0 (control), 15 and 30% of the aqueous extract and sprayed on wheat lines (3094, 5066, M5082, 7076 and A2011) at 15-day intervals until maturity from November 2017 to May 2018. All wheat lines responded differently to an allelochemical extract of A. scholaris. Disintegration of root parenchyma and transformation of stem chlorenchyma to sclerenchyma in stems were noted in Line 3094. Increased sclerification in the root cortex (141.7-212.5 µm) and stem hypodermal region (212.5-354.2 µm) was recorded in Line 5066. Line M5082 showed intensive sclerification in the root cortex and vascular region, and around stem vascular bundles along with a significant decrease in leaf thickness. Line 7076 was the most sensitive genotype showing significant reduction in the stem (1402.8-821.8 µm) and root area (963.5-791.9 µm) and leaf thickness (1346.2-396.8 μm). Line A2011 responded very differently by increasing proportion of parenchyma and sclerenchyma. A low concentration (15%) of allelochemical extract promoted growth and development and a high concentration (30%) was toxic, causing growth retardation and tissue damage.

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Section: Discussionmentioning

confidence: 99%

Ultrastructural response of wheat (Triticumaestivum L.) lines to potential allelopathy of Alstoniascholaris (L.) R. Br. leaf extract

Hameed¹,

Fatima²,

Shah³

et al. 2020

Turk J Bot

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“…Plant extracts obtained by different solvents and several extraction techniques are mixtures of numerous compounds. Their possible biological activity as mixtures is being investigated through various screening models such as plant (Bouchagier et al, 2008;Bouchagier and Efthimiadis, 2010), bioassays (Daferera et al, 2003), tissue or cell culture (Wang et al, 2011), receptor enzyme * Corresponding author. Tel.…”

Section: Introductionmentioning

confidence: 99%

Total phenolic content, antioxidant activity and toxicity of aqueous extracts from selected Greek medicinal and aromatic plants

Skotti

Anastasaki

Kanellou

et al. 2014

Industrial Crops and Products

176

101

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In this study, the total phenolic content, the antioxidant activity and toxicity of selected Greek medicinal aromatic namely Melissa officinalis L., Origanum vulgare L., Origanum dictamnus L., Salvia officinalis L. and Hyssopus officinalis L., were investigated under three different extraction processes. Among the plants studied, Melissa officinalis L. showed the highest values in total phenolic content (0.985 ± 0.001 mg caffeic acid/mL) and antioxidant activity (6.61 ± 0.04 mol Trolox/mL) independently of the extraction process. Toxicity evaluation of the infusions prepared in concentrations contained in commercial portions showed that inhibition values of Origanum vulgare L. and Origanum dictamnus L. were greater than 20% thus further research is necessary. Although toxicity of plant extracts examined is not correlated to their total phenolic content and antioxidant activity, it was linked to the interaction of water soluble and volatile organic compounds. Interaction of water soluble and volatile organic compounds was evaluated through the estimation of synergism ratios (SR), where Origanum vulgare L., presented the maximum synergism (SR = 4.2) in toxicity

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“…The evidence for yield reductions from competition with weeds has been well documented, but vegetative growth of cotton, represented by plant height and stem diameter, is another important aspect of cotton growth (Bouchagier et al 2008). Previous weed interference studies have indicated that cotton is sensitive to weed competition and its vegetative growth is generally less sensitive than cotton yield and yield components when exposed to weed competition (Christidis and Harrison 1955;Poonguzhalan et al 2013).…”

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confidence: 99%

Growth Analysis of Cotton in Competition with Velvetleaf (Abutilon theophrasti)

Yang

Wu³

et al. 2016

Weed technol.

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Field experiments were conducted in 2013 and 2014 to determine the influence of velvetleaf densities of 0, 0.125, 0.25, 0.5, 1, 2, 4, and 8 plants m−1of row on cotton growth and yield. The relationship between velvetleaf density and seed cotton yield was described by the hyperbolic decay regression model, which estimated that a density of 0.44 to 0.48 velvetleaf m−1of row would result in a seed cotton yield loss of 50%. Velvetleaf remained taller and thicker than cotton throughout the growing season. Both cotton height and stem diameter reduced with increasing velvetleaf density. Moreover, velvetleaf interference delayed cotton maturity, especially at velvetleaf densities of 1 to 8 plants m−1of row, and cotton boll number and weight, seed numbers per boll, and lint percentage were also reduced. Fiber quality was not influenced by weed density when analyzed over 2 yr; however, fiber length uniformity and micronaire were adversely affected in 2014. Velvetleaf intraspecific competition resulted in density-dependent effects on weed biomass, ranging from 97 to 204 g plant−1dry weight. Velvetleaf seed production per plant or per square meter was indicated by a logarithmic response. At a density of 1 plant m−1of cotton row, velvetleaf produced approximately 20,000 seeds m−2. The adverse impact of velvetleaf on cotton growth and development identified in this study have indicated the need for effective management of this species when the weed density is greater than 0.25 to 0.5 plant m−1of row and before the weed seed maturity.

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Adverse Effect of Bermudagrass on Physiological and Growth Components of Cotton

Cited by 11 publications

References 0 publications

Ultrastructural response of wheat (Triticumaestivum L.) lines to potential allelopathy of Alstoniascholaris (L.) R. Br. leaf extract

Ultrastructural response of wheat (Triticumaestivum L.) lines to potential allelopathy of Alstoniascholaris (L.) R. Br. leaf extract

Total phenolic content, antioxidant activity and toxicity of aqueous extracts from selected Greek medicinal and aromatic plants

Growth Analysis of Cotton in Competition with Velvetleaf (Abutilon theophrasti)

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