Area Under Disease Progress Curve
Mostrando 13-24 de 69 artigos, teses e dissertações.
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13. Foliar application of silicon decreases wheat blast symptoms without impairing photosynthesis
ABSTRACT Considering the importance of blast, caused by Pyricularia oryzae, to impact wheat yield, this study investigated whether the foliar spray of potassium silicate (PS) could affect the photosynthesis of wheat plants and its potential to reduce disease symptoms. The Exp. 1 aimed to determine the effect of the foliar spray of PS on the photosynthetic pe
Bragantia. Publicado em: 03/10/2019
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14. REACTION OF POTATO CULTIVARS AND CLONES TO Phytophthora infestans
RESUMO A reação in vitro e a campo de 23 cultivares e clones de batata a dois isolados de Phytophthora infestans foram avaliadas utilizando-se dois métodos. No teste in vitro, utilizou-se o método de folíolos destacadas cuja severidade da doença foi avaliada 6 dias após a inoculação. Os experimentos de campo foram conduzidos no outono de 2013, em do
Rev. Caatinga. Publicado em: 18/07/2019
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15. Progresso temporal da queima das folhas em diferentes genótipos de cenoura
RESUMO A cultura da cenoura tem se expandido em diversos locais do Brasil e na região do Alto Vale do Itajaí, SC, grande parte da sua produção vem de agricultores familiares. Entretanto, a queima das folhas (Alternaria dauci) tem comprometido a produtividade. O objetivo do trabalho foi avaliar o progresso desta doença nos genótipos: Alvorada calibrada
Summa phytopathol.. Publicado em: 10/07/2019
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16. Comparison of the efficacy of QoI fungicides, alone or in mixture with triazoles, in Asian soybean rust control, 2016/17 growing season
RESUMO Tem sido relatada a evolução da redução da sensibilidade de Phakopsora pachyrhizi às misturas dos três mecanismos de ação sítio-específicos (IDMs, IQes e ISDHs) usadas no seu controle. O objetivo desse trabalho foi quantificar a contribuição atual dos IQes, isolados ou em mistura com triazpois, no controle da ferrugem asiática da soja. Em
Summa phytopathol.. Publicado em: 2019-03
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17. Quitosana associada com extratos vegetais no controle pós-colheita de antracnose em mamão ‘formosa’
RESUMO O uso excessivo de produtos químicos na cultura do mamão (Carica papaya) coloca em risco a eficácia de fungicidas, em razão dos problemas de resistência dos patógenos a esses produtos, além da possibilidade de resíduos tóxicos colocarem em risco a saúde humana e o ambiente. Diante disto, o presente trabalho teve por objetivo avaliar a eficá
Summa phytopathol.. Publicado em: 2019-03
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18. SPRAY NOZZLES PERFORMANCE IN FUNGICIDES APPLICATIONS FOR ASIAN SOYBEAN RUST CONTROL
ABSTRACT: The performance of fungicides in controlling Asian soybean rust depends, in part, the spray quality of these products. The market of components to spray offers new types of nozzles which generate droplets with different characteristics. This study aimed to verify whether applications of fungicides with different spray nozzles interfere in soybean r
Eng. Agríc.. Publicado em: 2017-08
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19. Artificial neural network for prediction of the area under the disease progress curve of tomato late blight
ABSTRACT: Artificial neural networks (ANN) are computational models inspired by the neural systems of living beings capable of learning from examples and using them to solve problems such as non-linear prediction, and pattern recognition, in addition to several other applications. In this study, ANN were used to predict the value of the area under the diseas
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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20. Resistance to Fusarium wilt in common bean
Abstract In breeding programs, understanding the potential of parents should be a way to spend significantly less time and costs to obtain new cultivars. For this, the objective of this study was to estimate the general and specific combining ability of parents aiming common bean breeding for resistance to Fusarium wilt (FW) based on disease severity and red
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-09
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21. Reaction of sources of resistance to white mold to microsatellite haplotypes of Sclerotinia sclerotiorum
ABSTRACT White mold caused by the fungus Sclerotinia sclerotiorum is the most yield-limiting disease of common bean in Brazil. To date, there has been no commercial cultivar resistant to this disease. In a greenhouse we evaluated white mold resistance sources (Cornell 605, A195 and G122) against eight isolates of S. sclerotiorum from five Brazilian states. A
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-04
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22. Genetic resistance of maize inbred lines to anthracnose leaf blight
Abstract The objectives of this study were to evaluate the resistance of maize inbred lines to anthracnose leaf blight (Colletotrichum graminicola Ces.), and to estimate genetic parameters associated with resistance. Sixteen lines (S5) were evaluated for resistance to anthracnose leaf blight in three experiments, in a randomized block design with four replic
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-03
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23. Resistance to Phytophthora infestans in Solanum tuberosum landraces in Southern Chile
The objective of this work was to evaluate the resistance of 30 Chilean potato landraces to natural infection by Phytophthora infestans during two growing seasons in Southern Chile. Control cultivars were 'Désirée', which has moderate susceptibility to late blight, and 'Karú', which is characterized by moderate resistance to the disease. The response of t
Trop. plant pathol.. Publicado em: 2014-08
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24. Resistance in Capsicum spp. to anthracnose affected by different stages of fruit development during pre- and post-harvest
This study aimed to investigate the reaction of unripe and ripe fruits of Capsicum spp. accessions to Colletotrichum gloeosporioides during the pre- and post-harvest periods, and to identify sources of resistance for use in plant breeding programs. Thirty-seven Capsicum spp. accessions of the Universidade Estadual do Norte Fluminense Darcy Ribeiro were evalu
Trop. plant pathol.. Publicado em: 2014-08