scholarly journals Avances en la selección de fuentes de resistencia a las principales enfermedades del frijol común (Phaseolus vulgaris L.) en Costa Rica.

2006 ◽  
Vol 11 (2) ◽  
pp. 25 ◽  
Author(s):  
Carlos M. Araya ◽  
Rodolfo Araya
Keyword(s):  
Leaf Spot ◽  
Core Collection ◽  
Breeding Program ◽  
Colletotrichum Lindemuthianum ◽  
Angular Leaf Spot ◽  
Phaseolus Vulgaris L ◽  
Sources Of Resistance ◽  
Disease Reaction ◽  
Growing Seasons ◽  
Experimental Plots

In this research a broad set of bean genotypes were evaluated in the search for sources of resistance to both, anthracnose (Colletotrichum lindemuthianum) and angular leaf spot (Pahaeoisriopsis griseola). The germplasm evaluated came from the National Bean Breeding Program and international nurseries from CIAT: VIFURE, VIPADOGEN and CORE COLLECTION. Experimental plots were establised in Puriscal (1017 masl), Alajuela (814 masl) and Fraijanes (1650 masl), during the 97-98 and 98-99 growing seasons. Experimental plots were single or two rows from two to six m in length depending on seed availability. Disease reaction was scored at six and eight weeks after seeding using a 1 to 9 severity scale. Only genotypes showing 1-3 disease reaction for anthracnose and 1-4 for angular leaf spot were selected. In the germplas from the National Bean Breeding Program nine lines resistant to both pathogens were identified, of those, five lines were specifically resistant to anthracnose and two angular leaf spot. In the VIPADOGEN from CIAT, 25 lines were resistant to anthracnose and only two were resistant to both diseases. These materials also displayed adaptation to either drought or low soil fertility. The CORE COLLECTION nursery provided 82 lines resistant to anthracnose, 12 lines resistant to angular leaf spot and 26 lines were resistant to both pathogens. The most outstanding sources of resistance to anthracnose and angular leaf spot will be made available in a regional nursery.

New sources of resistance to anthracnose and angular leaf spot of beans (Phaseolus vulgaris L.)

Euphytica ◽  
1982 ◽  
Vol 31 (3) ◽  
pp. 741-754 ◽  
Author(s):  
H. F. Schwartz ◽  
M. A. Pastor Corrales ◽  
S. P. Singh
Keyword(s):  
Phaseolus Vulgaris ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaseolus Vulgaris L ◽  
Sources Of Resistance

Management of Angular Leaf Spot in Common Bean (Phaseolus vulgaris L.) with Molybdenum and Fungicide

2004 ◽  
Vol 96 (3) ◽  
pp. 1 ◽  
Author(s):  
Waldir Cintra de Jesus ◽  
Francisco Xavier Ribeiro Vale ◽  
Reginaldo Resende Coelho ◽  
Bernhard Hau ◽  
Laércio Zambolim ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaseolus Vulgaris L

scholarly journals Screening of French Bean (Phaseolus vulgaris L.) Genotypes against Alternaria Leaf Spot Caused by (Alternaria alternata) under Dryland Conditions of Kashmir

2021 ◽  
pp. 25-30
Author(s):  
Sabiya Bashir ◽  
Mohammad Najeeb Mughal ◽  
Zahida Rashid ◽  
Shabeena Majid ◽  
Sabeena Naseer ◽  
...  
Keyword(s):  
Alternaria Alternata ◽  
Leaf Spot ◽  
Disease Incidence ◽  
French Bean ◽  
Phaseolus Vulgaris L ◽  
Dryland Agriculture ◽  
Disease Reaction ◽  
The Mean ◽  
Selection For ◽  
Resistant Genotypes

Sixty-three genotypes of  french bean was screened against leaf spot (Alternaria  alternata) in sick plots at Research Farm of Dryland Agriculture Research Srinagar, Rangreth during  Kharif  2018 and 2019. The highest mean disease incidence ranged from 0.00 to 85.00 per cent  with  the mean disease intensity ranged from 0.00 to 53.26 per cent .One genotype namely  ‘Local Pulwama’ was highly susceptible in their disease reaction. Among the screened germplasm, ‘Highly Resistant’ genotypes was SKU-R-601, SKUA-R-105, SKU-R-927, DARS-25, DARS-66, DARS-R-615,  while as ‘Susceptible’ genotypes was  DARS-8, DARS-12,  DARS-11, SKUAST-R-155, SKU-R-928, DARS-7, DARS-R-4, Bhaderwah (L),  Local  Kupwara black and Raj Jawala. Local Pulwama was found to be a highly susceptible (HS) genotype.  Twenty nine genotypes namely., DARS-16, DARS-9, DARS-54, DARS-39, VL-125, DARS-63, ENTO-504, SKUAST-204,SKU-R-925, DARS-60, DARS-109, DARS-43, DARS-44, SKU-R-23, DARS-4, DARS-74, SKU-R-105, DARS-40, DARS-23, DARS-18, SKU-R-71, WB-341, SKU-R-605, Uri local, Shopian (L), SKU-R-23, DARS-71, SSGB-729, DARS-R-19 showed resistant reaction to disease. The selection for resistance was based on the reaction of varieties on leaves.

Characterization of Colletotrichum lindemuthianum Races in Zambia and Evaluation of the CIAT Phaseolus Core Collection for Resistance to Anthracnose

Plant Disease ◽  
2021 ◽  
Author(s):  
Kelvin Kamfwa ◽  
Paul Gepts ◽  
Swivia Hamabwe ◽  
Zombe Kapata Nalupya ◽  
Chikoti Mukuma ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Core Collection ◽  
Durable Resistance ◽  
Colletotrichum Lindemuthianum ◽  
Sources Of Resistance ◽  
Runner Bean ◽  
Causal Pathogen ◽  
Scarlet Runner Bean

Colletotrichum lindemuthianum, the causal pathogen of common bean (Phaseolus vulgaris) anthracnose, is highly variable. Therefore, understanding its race structure and identification of new sources of resistance is necessary for the development of varieties with durable resistance. The objectives of this study were (i) to characterize isolates of C. lindemuthianum collected from three major bean-growing regions in Zambia, and (ii) evaluate the CIAT Phaseolus core collection for resistance to C. lindemuthianum races 37, 73, and 566, and a blend of 20 races. Isolates collected from three major bean-growing districts in Zambia, namely Mporokoso, Mpika, and Mbala, were characterized as race 37, 73, and 566, respectively. A subset of the CIAT core collection comprised of 885 accessions of common bean, 13 accessions of scarlet runner bean (P. coccineus), and 11 accessions of year bean (P. dumosus) were evaluated for resistance to races 37, 73 and 566, and a blend of 20 races in a greenhouse at University of Zambia, Lusaka, Zambia. A total of 72%, 66%, 48% and 9% of P. vulgaris accessions evaluated were highly resistant to races 37, 73, 566 and a blend of 20 races, respectively. Also, accessions of P. coccineus and P. dumosus, highly resistant to races 37, 73 and 566, were identified. Only eight of the 331 P. vulgaris accessions were highly resistant to all three individual races (37, 73, and 566) and to a blend of 20 races. These eight accessions constitute a valuable breeding resource for developing varieties with durable resistance to C. lindemuthianum.

scholarly journals Genome-Wide Association Studies of Anthracnose and Angular Leaf Spot Resistance in Common Bean (Phaseolus vulgaris L.)

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0150506 ◽  
Author(s):  
Juliana Morini Küpper Cardoso Perseguini ◽  
Paula Rodrigues Oblessuc ◽  
João Ricardo Bachega Feijó Rosa ◽  
Kleber Alves Gomes ◽  
Alisson Fernando Chiorato ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Leaf Spot ◽  
Association Studies ◽  
Angular Leaf Spot ◽  
Genome Wide Association ◽  
Genome Wide Association Studies ◽  
Phaseolus Vulgaris L ◽  
Genome Wide

scholarly journals Fine-mapping of a major QTL controlling angular leaf spot resistance in common bean (Phaseolus vulgaris L.)

2015 ◽  
Vol 128 (5) ◽  
pp. 813-826 ◽  
Author(s):  
Beat Keller ◽  
Chloe Manzanares ◽  
Carlos Jara ◽  
Juan David Lobaton ◽  
Bruno Studer ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Fine Mapping ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaseolus Vulgaris L ◽  
Major Qtl

scholarly journals Pathogenic variability of Pseudocercospora griseola isolates from two provinces of Ecuador

2017 ◽  
Vol 101 (1) ◽  
pp. 107-119
Author(s):  
Diego Rodríguez ◽  
Laura Vega ◽  
Ángel Murillo ◽  
Eduardo Peralta
Keyword(s):  
Leaf Spot ◽  
Field Resistance ◽  
Angular Leaf Spot ◽  
Grain Legume ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Resistant Varieties ◽  
Pathogenic Variability ◽  
Pseudocercospora Griseola ◽  
Sown Area

Common bean (Phaseolus vulgaris L.) is the most important edible grain legume in Ecuador. The Ministry of Agriculture, Cattle Raising, Aquaculture and Fisheries of this country estimated that 71,600 hectares were cultivated in 2012; of the sown area, 53% was dedicated to dry grain and the remaining 47% to fresh grain. Beans are an important source of income for farmers and food for thousands of Ecuadorian families. Crop performance and yield are affected by diseases such as angular leaf spot caused by Pseudocercospora griseola (Sacc.) Ferraris. The best alternative for disease control is to use resistant varieties. However, durability of field resistance will depend on the knowledge of angular leaf spot variability. In Ecuador, detailed and systematic studies on the variability of the angular leaf spot pathogen have not been conducted. For this reason, the pathogenic variability of 21 isolates of angular leaf spot, collected from the provinces of Carchi and Imbabura in the Ecuadorian Andes, was studied. Thirteen different pathotypes were identified, five of them showed compatibility with only the group of Andean differentials and the remaining eight showed compatibility with two groups of differentials (Andean and Mesoamerican). Race 63:0 was the most frequent and race 31:63 was the most virulent. None of the isolates were compatible with differential Cornell 49-242. Therefore, bean breeding lines in Ecuador would benefit by incorporating the Phg-2 resistance gene present in differential Cornell 49-242 .

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