Plantas indicadoras de clomazone na fase vapor

Schreiber, F.; Avila, Luis Antônio de; Scherner, Ananda; Moura, Diogo da Silva; Helgueira, Diogo Balbé

doi:10.1590/s0103-84782013001000014

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…This may occur since this herbicide acts indirectly in photosynthesis by inhibiting deoxyxylulose phosphate synthase enzyme (DXP synthase), which is responsible for isoterpenoid synthesis, the basic carotenoid precursors 901 Tolerance to the herbicide… CABRAL, M. C. et al (SCHREIBER et al, 2013)) and inhibit chlorophyll photo-oxidation. Luminosity enhances the herbicide effects, impairing species adaptation to light, which is especially important in early stages by conditioning morphogenetic and physiological modifications in structure and function (SULTAN, 2003), constituting a key factor for species establishment within a forest.…”

Section: Resultsmentioning

confidence: 99%

“…Clomazone belongs to isoxazolidinon chemical group, and acts by inhibiting carotenoid biosynthesis (FOROUZESH et al, 2013), being absorbed by plant through apical meristem (preferably in roots) (SCHREIBER et al, 2013). Herbicides such as hexazinone, imazapyr and sulfentrazone, clomazone, ametryn, amicarbazone and diuron were detected in semiartesian wells and springs region of the Córrego Rico-SP microbasin.…”

Section: Introductionmentioning

confidence: 99%

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Tolerance to the herbicide clomazone and potential for changes of forest species

Cabral¹,

Santos²,

Ferreira³

et al. 2017

Biosci. J.

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Clomazone has excelled among Brazilian non-target-site herbicides with high environmental impact. Its high solubility in water can result in leaching, contaminating groundwater and watercourses with possible riparian forest degradation. This situation can be mitigated by phytoremediation process. This study aimed to identify tree species tolerant to clomazone aiming to use them in bioremediation programs. Twelve forest species were evaluated: Inga marginata Willd, Handroanthus serratifolius (A.H. Gentry) S. Grose, Jacaranda puberula Chan, Cedrela fissilis Vell, Calophyllum brasiliense Cambess, Psidium myrsinoides Berg, Tibouchina granulosa Cogn, Caesalpinia ferrea Mart ex. Tul, Caesalpinia pluviosa DC, Terminalia argentea Mart & Zucc, Schinopsis brasiliensis Eng and Schizolobium parahyba (Vell). The statistical analysis was performed in a completely randomized block design with four replications. Three clomazone applications were made each 20 days (60, 80 and 100 days after planting); each application was equivalent to one-half of the recommended rate (2.0 L ha -1 ). The evaluated parameters were plant height, stem diameter, leaf number, leaf area and dry biomass. The forest species survived the clomazone application; and I. marginata, C. ferrea and S. brasiliensis showed increased tolerance to this herbicide, demonstrating potential for phytoremediation of areas contaminated by clomazone.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tolerance to the herbicide clomazone and potential for changes of forest species

Cabral¹,

Santos²,

Ferreira³

et al. 2017

Biosci. J.

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“…In the choices of the plant species, the work by Schreiber et al (2013) was taken into account, in which was tested the sensitivity of different species to the herbicide clomazone in the vapor phase. Each selected species was sown in rows spaced 5 cm, containing ten seeds per row.…”

Section: Methodsmentioning

confidence: 99%

Volatility of Different Formulations of Clomazone Herbicide

et al. 2015

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-Volatilization represents an important process in the displacement of pesticides for the environment. The physicochemical properties of the clomazone molecule indicate its relative volatility. Therefore, this study was carried out to assess the volatilization of different clomazone herbicide formulations using bioindicator species. To that end, airtight glass boxes were used with the presence of different clomazone formulations and plant species. The formulations used were Gamit 360 CS ®

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“…These animal or vegetable organisms have the potential to undergo alterations in their vital functions or chemical composition (Lam and Gray, 2003), indicating the presence of a given contaminant. Clomazone in the vapor phase has already been detected by bioindicator plants, as reported by Schreiber et al 2013, and sorghum (Sorghum bicolor) is the most appropriate species.…”

Section: Introductionmentioning

confidence: 81%

Volatilidade de formulações de clomazone em condições de campo

Schreiber¹,

Avila²,

Scherner³

et al. 2016

RBHerbicidas

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-Volatilization plays an important role in the process of herbicide dispersion in the environment. The physicochemical characteristics of the clomazone molecule indicate its volatility potential. The present study aimed to evaluate the volatilization rate of three clomazone formulations under field conditions using indicator plants and wind tunnels. Transparent polyethylene tunnels were placed on a sorghum (Sorghum bicolor) field parallel to the prevalent wind direction, and the herbicide formulations were applied in plastic trays containing 10 kg of sieved soil and placed at the center of the tunnel. The experiment was arranged in a slip-plot design with four replications. The main plots were represented by different formulations of the herbicides: Gamit 360 CS ® , Gamit 500 EC ® and Gamit Star ® , and control plots without herbicide application. The sub-plots represented the distances from the application site: 1, 2, 3, 4, 5, 6 meters. Herbicide injury in sorghum was then assessed at different days after application. The symptoms of all formulations were more intense in the plants that were closer to the application site, and were even more severe in the prevailing wind direction. In general, regardless of the application distance, Gamit 360 CS ® caused less injury to the sorghum.

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Plantas indicadoras de clomazone na fase vapor

Abstract: RESUMO. As a main result it was conclude that among the species that were tested, independent of the formulation used, the lowest tolerance to clomazone herbicide in the vapor phase was sorghum, followed by corn and rice.

Cited by 7 publications

References 11 publications

Tolerance to the herbicide clomazone and potential for changes of forest species

Tolerance to the herbicide clomazone and potential for changes of forest species

Volatility of Different Formulations of Clomazone Herbicide

Volatilidade de formulações de clomazone em condições de campo

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