2012
DOI: 10.1590/s0100-83582012000300014
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Abstract: RESUMO -Avaliou-se neste trabalho a influência de herbicidas nas características fisiológicas de três cultivares de cana-de-açúcar. O experimento foi conduzido no delineamento em blocos ao acaso, com três repetições, no esquema fatorial 3 x 8. O fator A foi composto por três cultivares de cana-de-açúcar (RB867515, RB855156 e SP80-1816), e o B, pelos herbicidas (tembotrione, MSMA, diuron + hexazinone, sulfentrazone, trifloxysulfuron-sodium, tebuthiuron, clomazone) e uma testemunha sem uso de herbicidas. A taxa … Show more

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Cited by 28 publications
(27 citation statements)
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“…A seletividade de herbicidas depende de alguns fatores, tais como as características físico-químicas dos herbicidas, dose, estádio de desenvolvimento da cultura, suscetibilidade dos genótipos e das condições edafoclimáticas no momento da aplicação (Torres et al, 2012). Diversos trabalhos avaliaram a seletividade dos herbicidas tradicionalmente utilizados na canade-açúcar, bem como as diferentes tolerâncias das principais variedades de cana-de-açúcar, porém, são escassas as informações sobre a tolerância de variedades de cana-de-açúcar aos herbicidas quando implantadas por meio de mudas pré-brotadas.…”
Section: Introductionunclassified
“…A seletividade de herbicidas depende de alguns fatores, tais como as características físico-químicas dos herbicidas, dose, estádio de desenvolvimento da cultura, suscetibilidade dos genótipos e das condições edafoclimáticas no momento da aplicação (Torres et al, 2012). Diversos trabalhos avaliaram a seletividade dos herbicidas tradicionalmente utilizados na canade-açúcar, bem como as diferentes tolerâncias das principais variedades de cana-de-açúcar, porém, são escassas as informações sobre a tolerância de variedades de cana-de-açúcar aos herbicidas quando implantadas por meio de mudas pré-brotadas.…”
Section: Introductionunclassified
“…Maintaining these important physiological responses indicates the possibility of partially substituting the fresh water for brackish irrigation water without compromising plant development. ; T8-Cyclic use of A1 and A2 (6 irrigations with A1 followed by 6 irrigations with A2), beginning with A1 at planting; T9-Cyclic use of A1 and A3 (6 irrigations with A1 followed by 6 irrigations with A3), beginning with A1 at planting; T10-Cyclic use of A1 and A4 (6 irrigations with A1 followed by 6 irrigations with A4), beginning with A1 at planting; T11-The use of water with an EC of 2.2 dS m The reduction in the rate of photosynthesis in treatments with both a continuous application of water at an EC of 5.0 dS m -1 (T4) and applied after planting until the end of the cycle (T13), may be due to the partial closing of the stomata resulting from the osmotic and ionic effects of the salinity, and to the effects of ion toxicity on the metabolism (BEZERRA, LACERDA & GOMES FILHO, 2005;WILSON et al, 2006;GUIMARÃES et al, 2012;TORRES et al, 2012;TAIZ & ZEIGER, 2013). However, reductions in the rates of photosynthesis were less significant than the reductions observed for vegetative biomass production (results previously published by NEVES et al, 2015), confirming that instantaneous rates of leaf gas exchange are less sensitive to salt stress than plant growth (LACERDA et al, 2006;ASSIS JÚNIOR et al, 2007;SILVA, 2015).…”
Section: Resultsmentioning
confidence: 99%
“…In the literature, a few reports are found regarding individual effect of pesticides on plant physiological aspects, such as for foliar fertilizers (HUSSAIN et al, 2016;FEIJAO et al 2011;SOUSA et al 2010), fungicides (TORRES et al 2012) and insecticides (LEMES et al 2015). Nonetheless, so far nothing has been related concerning the effect of mixture of all these products in the scientific literature.…”
Section: Physiological Evaluationsmentioning
confidence: 99%
“…The first variable can be used for diagnosis photosynthetic apparatus integrity (PEREIRA et al 2000), which is largely used to evaluate biotic and abiotic stress responses, mainly related to hydric stress (TORRES et al, 2012;SUASSUNA et al, 2010). According to Björkman (1987), the values achieved here (between 0.76 and 0.81) are within normal amplitude seen a correct function of PSII in plants (0.75 to 0.85), showing no photo-inhibition throughout evaluation period.…”
Section: Physiological Evaluationsmentioning
confidence: 99%