Phytotoxic Effects of Three Natural Compounds: Pelargonic Acid, Carvacrol, and Cinnamic Aldehyde, against Problematic Weeds in Mediterranean Crops

Muñoz, Marta; Pagán, Natalia Torres; Peiró, Rosa; Guijarro, R.; Sánchez‐Moreiras, Adela M.; Verdeguer, Mercedes

doi:10.3390/agronomy10060791

Cited by 37 publications

(50 citation statements)

References 64 publications

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“…The satisfactory performance of mowing is in line with the recommendations of Donald (2006) that timely mowing operations can be highly effective on annual broadleaf species. The low biomass values recorded for A. retroflexus after pelargonic acid applications (two times) agree with Muñoz et al (2020). Preemergence herbicides and glyphosate resulted in the lowest dry weight values for this species in both years and evaluations.…”

Section: Resultssupporting

confidence: 80%

“…Glyphosate-alternative weed control strategies rely first upon pre-or early postemergence herbicides with soil residual activity that enable long-term weed control with a single application and the applications of selective herbicides on targeted weed species that have dominated a particular field (Scarabel et al 2014;Tahmasebi et al 2018;Travlos et al 2014). Natural contact, burndown herbicides can also contribute to solutions for the management of annual weed species (Muñoz et al 2020;Young 2004). Mowing operations are also among the recommended agronomic practices that reduce weed growth and the reproductive ability of a various weed species (Butler et al 2013;Mia et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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Screening glyphosate-alternative weed control options in important perennial crops

et al. 2021

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The current study aimed to screen glyphosate-alternative weed control methods in three perennial crops in Greece. Field trials were conducted and repeated (2018 to 2019 and 2019 to 2020) in a citrus orchard (Citrus clementina Hort. ex Tan), an olive grove (Olea europaea L.), and a vineyard (Vitis vinifera L.) under the randomized complete block design (nine treatments, four blocks). Glyphosate was applied in the citrus orchard (720 g ae ha−1), the olive grove (720 g ae ha−1), and the vineyard (1,800 g ae ha−1). Pelargonic acid (1,088 g ha−1; two times), barley (Hordeum vulgare L.) residues and white mustard (Sinapis alba L.) residues were evaluated in all sites. Mowing was evaluated in the citrus orchard (one time) and the vineyard (two times). Flazasulfuron (50 g ha−1), oxyfluorfen (144 g ha−1), and flumioxazin (150 g ha−1) were applied in the citrus orchard and the olive grove. Penoxsulam + florasulam (15 + 7.5 g ha−1) was also applied in the olive grove. Cycloxydim (200 g ha−1), quizalofop-p-ethyl (150 g ha−1) and propaquizafop (150 g ha−1) were applied in the vineyard. An untreated control was included in all sites. Flazasulfuron, oxyfluorfen, and flumioxazin resulted in similar normalized difference vegetation index (NDVI) and weed biomass to glyphosate in the citrus orchard in both years and evaluations. Pelargonic acid (two times) and mowing (one time) were effective on broadleaf weeds. Flazasulfuron and penoxsulam + florasulam were the most promising glyphosate-alternative weed control methods against hairy fleabane [Conyza bonariensis (L.) Cronquist] in the olive grove. Cover crop residues showed their suppressive ability as in the citrus orchard. All selective herbicides resulted in similar NDVI and johnsongrass [Sorghum halepense (L.) Pers.] dry weight values in the vineyard in both years. Negative and strong correlations were observed in all sites and years between crop yield and weed dry weight (R2 = 0.543 to 0.924).

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Section: Resultssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Screening glyphosate-alternative weed control options in important perennial crops

et al. 2021

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“…Therefore, the intrusion of weeds greatly affects the physiological behavior and development of crop plants [4,5]. Weeds cause significant crop yield losses-more than 50 percent for some crops if the fields are left unchecked [6]. The strategy for weed control performs a critical role and directly affects global food protection and food productivity.…”

Section: Introductionmentioning

confidence: 99%

Phytotoxic Activity and Growth Inhibitory Substances from Albizia richardiana (Voigt.) King & Prain

et al. 2021

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Albizia richardiana, a fast-growing, large deciduous tree belonging to the Fabaceae family, grows well in hot and humid areas but mainly grows in the tropics of the Old World. The medicinal and other uses of Albizia richardiana are well documented, but the phytotoxic effects of this tree have not yet been investigated. We conducted this study to investigate the phytotoxic activity of Albizia richardiana leaves and to identify growth inhibitory substances for controlling weeds in a sustainable way. Aqueous methanol extracts of Albizia richardiana leaves greatly suppressed the growth of cress and barnyard grass seedlings in a concentration- and species-dependent manner. Two phytotoxic substances were separated using several purification steps and characterized through spectral analysis as dehydrovomifoliol and loliolide. Dehydrovomifoliol and loliolide significantly arrested the seedling growth of cress in the concentrations of 0.1 and 0.01 mM, respectively. The extract concentrations needed for 50% growth inhibition (I50 values) of cress seedlings were 3.16–3.01 mM for dehydrovomifoliol and 0.03–0.02 mM for loliolide. The results suggest that these two allelopathic substances might play a vital role in the phytotoxicity of Albizia richardiana leaves.

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“…Another paper deals with abiotic stress in crops imposed by treatments with herbicides and explores the possibility to control weeds with three natural compounds, analyzing the phytotoxic effects that they produce in weeds. The tree products demonstrated great possibilities as sustainable tools for integrated weed management [48].…”

Section: Soil Constrainsmentioning

confidence: 99%

Physiological and Molecular Characterization of Crop Resistance to Abiotic Stresses

Boscaiu

Fita

2020

Agronomy

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Abiotic stress represents a main constraint for agriculture, affecting plant growth and productivity. Drought and soil salinity, especially, are major causes of reduction of crop yields and food production worldwide. It is not unexpected, therefore, that the study of plant responses to abiotic stress and stress tolerance mechanisms is one of the most active research fields in plant biology. This Special Issue compiles 22 research papers and 4 reviews covering different aspects of these responses and mechanisms, addressing environmental stress factors such as drought, salinity, flooding, heat and cold stress, deficiency or toxicity of compounds in the soil (e.g., macro and micronutrients), and combination of different stresses. The approaches used are also diverse, including, among others, the analysis of agronomic traits based on morphological characteristics, physiological and biochemical studies, and transcriptomics or transgenics. Despite its complexity, we believe that this Special Issue provides a useful overview of the topic, including basic information on the mechanisms of abiotic stress tolerance as well as practical aspects such as the alleviation of the deleterious effects of stress by different means, or the use of local landraces as a source of genetic material adapted to combined stresses. This knowledge should help to develop the agriculture of the (near) future, sustainable and better adapted to the conditions ahead, in a scenario of global warming and environmental pollution.

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Phytotoxic Effects of Three Natural Compounds: Pelargonic Acid, Carvacrol, and Cinnamic Aldehyde, against Problematic Weeds in Mediterranean Crops

Cited by 37 publications

References 64 publications

Screening glyphosate-alternative weed control options in important perennial crops

Screening glyphosate-alternative weed control options in important perennial crops

Phytotoxic Activity and Growth Inhibitory Substances from Albizia richardiana (Voigt.) King & Prain

Physiological and Molecular Characterization of Crop Resistance to Abiotic Stresses

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