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Induction of resistance and chemical management of mildew and Asian rust in soybean cultivation Acta Agron. (Palmira)
Grigolo,Daniel Claudio; Possenti,Jean Carlo; Mazaro,Sergio Miguel; Silva,Marcieli da; Guollo,Karina.
Abstract Soybean (Glycine max (L.) Merrill) is one of the most cultivated in Brazil and has lost productivity due to the attack of disease pests. Thus, it is necessary to develop new technologies capable of reducing damages caused by such biological agents. The aim of this work was to evaluate whether the chemical management of ‘eyespot’ and the induction of resistance through the use of phosphites and acibenzolar-s-methyl (ASM), in association with commercial fungicides, affect the quality of soybean seeds. The study was conducted in the field, during two consecutive harvests in Dois Vizinhos, Paraná, Brazil, and a randomized blocks experimental designs was used. The response-variables evaluated were yield components, disease severity through specific...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acibenzolar-S-methyl; Glycine max; Phosphites.
Ano: 2019 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122019000400285
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Induction of resistance in chickpea (Cicer arietinum L.) against Ascochyta rabiei by applying chemicals and plant extracts Chilean J. Agric. Res.
Usman Ghazanfar,M; Wakil,Waqas; Talib Sahi,Shahbaz.
Since new fungicides are scarce in the market and because of environmental problems, researchers are now emphasizing other alternatives, such as the genetic potential of plants, resistance against pathogens, and the use of biotic and abiotic agents to develop induced or acquired resistance. We investigated the role of resistance-inducing substances (chemicals and plant extracts) in three chickpea cvs. C-44, Pb-91, and Bittle-98 in field experiments against Ascochyta blight disease. These cultivars were selected on the basis of better yield potential shown in previous experiments. Aqueous solution of salicylic acid (SA) at 0.5, 1.0, and 1.5 mM; acibenzolar-S-methyl (Bion®, ASM) at 0.4, 0.8, and 1.2 mM; and KOH at 25, 50, and 75 mM were applied, whereas...
Tipo: Journal article Palavras-chave: Induced resistance; Acibenzolar-S-methyl; Salicylic acid.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100007
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The use of actometry and electronic nose devices to assess the locomotor activity of two species of Coccinellidae (Coleoptera) Ciencia e Investigación Agraria
Heit,Guillermo; Messina,Valeria; Mareggiani,Graciela; Cohen,Rosa; Carrizo,Paola.
The effect of odor signals on the locomotor activity of Cycloneda sanguinea and Harmonia axyridis was evaluated using two different actometric devices. The purpose of the analysis was to differentiate between the responses elicited by direct contact with the substrates and the responses that occurred if the coccinellids were exposed only to volátiles and had no direct substrate contact. The odor profile of the environmental volátiles (semiochemicals) in the bioassays was analyzed using an electronic nose (Modular Sensor System Moses II). The treatments used included volatiles emitted by pepper leaves (healthy or infested with Myzus persicae), M. persicae molts and honeydew, and healthy leaves treated with an artificial inducer of the systemic acquired...
Tipo: Journal article Palavras-chave: Acibenzolar-S-methyl; Coccinellidae; Electronic nose; Locomotor activity; Semiochemicals.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000200012
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