• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.11.2002.tde-19022003-144759
Document
Author
Full name
Nilceli Fernandes Buzzerio
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2001
Supervisor
Committee
Bergamin Filho, Armando (President)
Amorim, Lilian
Furtado, Edson Luiz
 
Title in Portuguese
Ferrugem e mancha angular do feijoeiro: efeito de fungicidas no desenvolvimento do hospedeiro e no progresso das doenças.
Keywords in Portuguese
feijão
ferrugem (doença de planta)
fungicidas
mancha angular
Abstract in Portuguese
Foram conduzidos quatro experimentos com a cultivar 'Carioca' do feijoeiro (Phaseolus vulgaris), objetivando a possibilidade de implementação de um sistema de manejo integrado da ferrugem e mancha angular do feijoeiro após a intervenção com os fungicidas oxycarboxin (Hokko Plantvax 750 - 700 gramas/ha) e trifenil hidróxido de estanho (Mertin â - 660 ml/ha), respectivamente, aplicados em diferentes épocas. Foi realizada a quantificação de danos nesses patossistemas, verificando por meio de regressões lineares e não lineares as possíveis relações existentes entre as variáveis integrais AUDPC (área sob a curva de progresso de doença)¸ HAD (duração da área foliar sadia) e HAA (absorção da área foliar sadia) e suas correspondentes HLAI (índice de área foliar sadio) e HRI (absorção da área foliar por unidade de tempo) com a produção (gramas/planta). Os melhores resultados foram obtidos com as variáveis HAD e HAA, com coeficientes de determinação (R 2 ) variáveis entre 0,19 e 0,56 para HAD e 0,23 e 0,49 para HAA. Quando as variáveis HLAI e HRI foram relacionadas com a produção, os coeficientes de determinação variaram entre 0,24 e 0,57 para HLAI e 0,28 e 0,56 para HRI. A partir das avaliações semanais de HLAI e HRI foram realizadas regressões lineares entre estas variáveis e a produção (gramas/planta). Os coeficientes angulares foram relacionados com os estádios de desenvolvimento observando-se a estabilização das curvas entre os estádios R5-R8 para o patossistema ferrugem - feijão e entre os estádios V4-R8 para o patossistema mancha angular - feijão para HLAI e HRI. Nesses experimentos foram também realizadas avaliações do Índice de Área Foliar (LAI) utilizando-se medições diretas (avaliações manuais) e indiretas com ceptômetro. As medições obtidas com o este equipamento apresentaram sensibilidade suficiente para captar as variações no índice de área foliar sadio e portanto podem ser usadas em sistemas de manejo integrado da ferrugem e da mancha angular do feijoeiro.
 
Title in English
Bean rust and angular leaf spot of bean: effect of foliar fungicides on the host vegetative development of host and on the progress of the diseases.
Keywords in English
angular leaf spot
bean
bean rust
fungicides
Abstract in English
Four trials were carried out on dry beans (Phaseolus vulgaris), variety 'Carioca' with goal to verify the possibility of implementation of an integrated management system for rust and angular spot after the application with of oxycarboxin (Hokko Plantvax 750 - 700 g/ha) and trifenil stannic hydroxide (Mertin â - 660 ml/ha) fungicides, applied in different timings. The damage quantification in these pathosystems were done analyzing the possible existing relation among the integral variables AUPDC (Area Under Disease Progress Curve), HAD (Healthy Area Duration) and HAA (Healthy Area Absorption) and its correspondents HLAI (Healthy Leaf Area Index) and HRI (Healthy Radiation Intercept) with yield (grams/plant) through linear and non linear regression. The best results were obtained using the variables HAD and HAA with the determination coefficients (R 2 ) from 0.19 to 0.56 for HAD and 0.23 to 0.49 for HAA. When HLAI and HRI were related with yield, the determination coefficient ranged from 0.24 and 0.57 for HLAI and 0.28 to 0.56 for HRI. From weekly assessments of HLAI and HRI, linear regression analysis were done between those variables and yield (grams/plant). The angular coefficient were related with the different crop stages and the stability of curves was observed between R5-R8 stages for rust - dry bean pathosystem and between V4-V8 stages for angular spot - dry bean pathosystem when HLAI and HRI were analyzed. In these experiments, Leaf Area Indice (LAI) was also assessed with direct (manual) and indirect measures with a ceptometer. The measures obtained using this set provided necessary sensibility to catch HLAI variation and, therefore, may be used in an integrated management system of rust and angular spot in dry beans.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
nilceli.pdf (1.83 Mbytes)
Publishing Date
2003-05-30
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors.
CeTI-SC/STI
© 2001-2024. Digital Library of Theses and Dissertations of USP.