Cowpea yield and quality after application of desiccating herbicides

Silva, Jeovane Nascimento; Costa, Estevam Matheus; Pereira, Leandro Spíndola; Gonçalves, Elaine Cristina Zuquetti; Zuchi, Jacson; Jakelaitis, Adriano

doi:10.1590/2317-1545v42228204

Cited by 3 publications

(4 citation statements)

References 19 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Paraquat Degradation and Growth Promotion of Cowpea (V. unguiculata) Under Paraquat Stress Cowpea (V. unguiculata) is sensitive to herbicide (Silva et al, 2020) and could serve as a model to perform the ability of bacterial isolates to promote plant growth under paraquat stress in pot experiments. The experiments were conducted in non-sterile and sterile soils.…”

Section: Biodegradation Of Paraquat In Liquid Mediummentioning

confidence: 99%

See 1 more Smart Citation

Plant Growth and Drought Tolerance-Promoting Bacterium for Bioremediation of Paraquat Pesticide Residues in Agriculture Soils

et al. 2021

View full text Add to dashboard Cite

Thailand is an agricultural country. However, agricultural productivity relies on the heavy use of herbicides, especially paraquat. Paraquat accumulation is emerging as a problem in an ever-growing portion of agricultural land. Paraquat residues are toxic to plants, animals, and aquatic organisms in the environment. Biological remediation is a process that can mitigate agricultural chemical contaminants. One of the interesting bioremediators is bacteria. Not only do certain soil bacteria remediate paraquat, but some of them also possess plant growth-promoting properties, which provide advantages in field application. Thus, this study aimed to screen soil bacteria that could degrade paraquat and, at the same time, promote plant growth. Bacteria were isolated from paraquat-treated agricultural soil in Mueang Kaen Pattana municipality, Chiang Mai province, Thailand. On the basis of morphological and 16S rDNA sequence analyses, the selected bacterium was identified as Bacillus aryabhattai strain MoB09. It is capable of growing in nitrogen-free media. B. aryabhattai growth and paraquat degradation were found to be optimum at pH 7 and 30°C. This selected strain also possessed plant growth-promoting abilities, including indole production, siderophore production, phosphate solubilization, and 1-aminocyclopropane-1-carboxylic acid deaminase activity. Paraquat degradation was also evaluated in pot experiments of cowpea (Vigna unguiculata). It was found that this strain could remediate the paraquat residue in both sterilized and non-sterilized soils. The cowpea plants grown in paraquat-contaminated soil with B. aryabhattai showed longer root and shoot lengths than those grown in soil without bacterial inoculation. In addition, B. aryabhattai also promoted the growth of cowpea under induced drought stress. These results suggested that B. aryabhattai could be applied to mitigate paraquat residue in soil and also to promote plant productivity for the organic crop production.

show abstract

Section: Biodegradation Of Paraquat In Liquid Mediummentioning

confidence: 99%

“…Due to its tolerance for sandy soil and low rainfall, it is an important crop in the semiarid regions across Africa and Asia. In addition, cowpea has been reported to be highly sensitive to water and herbicide stress ( Oyewole et al, 2017 ; Silva et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Plant Growth and Drought Tolerance-Promoting Bacterium for Bioremediation of Paraquat Pesticide Residues in Agriculture Soils

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Se observó que la proporción de semillas grandes fue mayor cuando las plantas se desecaron en la etapa fenológica del 90 % de las vainas maduras, comparado con las semillas de la etapa fenológica del 80 % (Cuadro 3). Este resultado puede estar asociado al daño que los herbicidas causan a las membranas celulares de las semillas cuando éstas no han alcanzado aún la etapa de maduración fisiológica (Marcos, 2015), incluso este efecto puede ser más intenso en cultivares con hábitos de crecimiento indeterminados (Silva et al, 2020b). Así, se infiere que las semillas secadas en la etapa fenológica con 90 % de vainas maduras tuvieron más tiempo para acumular nutrientes y materia seca presentando así un mayor tamaño.…”

Section: Da Silva Et Al Productividad Del Frijol Mediante Desecación ...unclassified

“…Por su parte, Raisse et al (2020) obtuvieron semillas con germinación superior al 80 % en plantas desecadas con flumioxazin y diquat. Silva et al (2020b) indicaron que la aplicación de flumioxazin, en el estadio R5, no afectó la emergencia de las plántulas a partir de las semillas de las plantas desecadas.…”

Section: Volumen 35 (2023) Bioagro N°1unclassified

Productividad y calidad fisiológica de semillas de plantas de frijol sometidas a desecación por herbicidas en diferentes etapas fenológicas

Silva

Rocha

Smiderle

et al. 2022

Bioagro

View full text Add to dashboard Cite

show abstract

Agronomic implications of paraquat ban in Brazil

Albrecht¹,

Albrecht²,

Silva³

2022

Advances in Weed Science

View full text Add to dashboard Cite

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided that the original author and source are credited. Paraquat: mode of action and historical aspectsParaquat and diquat are bipyridylium herbicides with photosystem I electron diversion mode of action. They have contact action, limited translocation and rapid Abstract: Background: Paraquat is a broad spectrum herbicide used particularly in burndown, in pre-plant of row crops and in the pre-harvest desiccation of some crops. In Brazil, paraquat was re-evaluated by Anvisa, leading to a prohibition of production and sales on September 22, 2020, and used until July 31, 2021. Objective: The objective of this review is to characterize the use of paraquat in Brazil and describe the status in other countries, particularly the agronomic implications of its ban, possible replacements, and scenarios. Review: The use of paraquat is important for weed management in different production systems. Owing to its toxicity, its use has been reevaluated in several countries. For pre-harvest desiccation of soybeans, diquat, glufosinate, and some combinations with Protox inhibitors are highlighted as alternatives to paraquat. For pre-harvest desiccation of common beans, diquat, saflufenacil, and glufosinate could be used; however, only glufosinate could be used for wheat. For managing broadleaves weeds, glufosinate, saflufenacil, carfentrazone, and diquat are effective alternatives. Diquat may be less effective in controlling Conyza spp. resistant to paraquat. For grasses control, glufosinate, in addition to ACCase inhibitors and possible mixtures, may be helpful. Although pre-emergent herbicides are not classified as desiccant herbicides, they contribute to weed management. The adoption of herbicide-tolerant crops, mechanical control, and cover crops can be added as agricultural practices for integrated weed management. Conclusions: Due to the ban on paraquat, challenges arise, and the most often suggested replacements are glufosinate, diquat, and Protox inhibitors; however, grass control will be of greater concern.

show abstract

Cowpea yield and quality after application of desiccating herbicides

Cited by 3 publications

References 19 publications

Plant Growth and Drought Tolerance-Promoting Bacterium for Bioremediation of Paraquat Pesticide Residues in Agriculture Soils

Plant Growth and Drought Tolerance-Promoting Bacterium for Bioremediation of Paraquat Pesticide Residues in Agriculture Soils

Productividad y calidad fisiológica de semillas de plantas de frijol sometidas a desecación por herbicidas en diferentes etapas fenológicas

Agronomic implications of paraquat ban in Brazil

Contact Info

Product

Resources

About