scholarly journals Pathogenic Variability of Angular Leaf Spot Disease of Common Bean in Western Kenya

2016 ◽  
Vol 2 (6) ◽  
pp. 92
Author(s):  
Robert Kiptabut Leitich
Keyword(s):  
Common Bean ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Leaf Spot Disease ◽  
Western Kenya ◽  
Spot Disease ◽  
Pathogenic Variability

scholarly journals Characterization of the common bean host and Pseudocercospora griseola, the causative agent of angular leaf spot disease in Tanzania

2016 ◽  
Vol 10 (11) ◽  
pp. 238-245 ◽  
Author(s):  
Amos Chilagane Luseko ◽  
Nchimbi-Msolla Susan ◽  
Mbogo Kusolwa Paul ◽  
Gabriel Porch Timothy ◽  
Miryam Serrato Diaz Luz ◽  
...  
Keyword(s):  
Common Bean ◽  
Causative Agent ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Leaf Spot Disease ◽  
Spot Disease ◽  
The Common ◽  
Pseudocercospora Griseola

scholarly journals Leaf and canopy reflectance spectrometry applied to the estimation of angular leaf spot disease severity of common bean crops

PLoS ONE ◽  
2018 ◽  
Vol 13 (4) ◽  
pp. e0196072 ◽  
Author(s):  
Víctor Martínez-Martínez ◽  
Jaime Gomez-Gil ◽  
Marley L. Machado ◽  
Francisco A. C. Pinto
Keyword(s):  
Common Bean ◽  
Disease Severity ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Leaf Spot Disease ◽  
Canopy Reflectance ◽  
Reflectance Spectrometry ◽  
Spot Disease

scholarly journals Identification of Phaeoisariopsis griseola pathotypes from five States in Brazil

2002 ◽  
Vol 27 (1) ◽  
pp. 78-81 ◽  
Author(s):  
ALOISIO SARTORATO
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Resistance Genes ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaeoisariopsis Griseola ◽  
Moist Chamber ◽  
Differential Cultivars ◽  
Pathogenic Variability ◽  
Resistant Genotypes

Due to the increased importance of angular leaf spot of common bean (Phaseolus vulgaris) in Brazil, monitoring the pathogenic variability of its causal agent (Phaeoisariopsis griseola) is the best strategy for a breeding program aimed at developing resistant genotypes. Fifty one isolates of P. griseola collected in five Brazilian States were tested on a set of 12 international differential cultivars in the greenhouse. When inoculated plants showed symptoms but no sporulation was observed, they were transferred to a moist chamber for approximately 20-24 h. After this period of time, if no sporulation was observed, the plants were considered resistant; otherwise, they were considered susceptible. From the fifty-one tested isolates, seven different pathotypes were identified. No Andean pathotypes were identified; consequently, all isolates were classified as Middle American pathotypes. Pathotype 63-31 was the most widespread. Pathotype 63-63 overcame resistance genes present in all differential cultivars and also the resistance gene(s) present in the cultivar AND 277. This fact has important implications for breeding angular leaf spot resistance in beans, and suggests that searching for new resistance genes to angular leaf spot must be pursued.

scholarly journals Hyperspectral Imaging for Determining Pigment Contents in Cucumber Leaves in Response to Angular Leaf Spot Disease

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Yan-Ru Zhao ◽  
Xiaoli Li ◽  
Ke-Qiang Yu ◽  
Fan Cheng ◽  
Yong He
Keyword(s):  
Hyperspectral Imaging ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Leaf Spot Disease ◽  
Spot Disease ◽  
Pigment Contents
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