Root rot of common bean in Zanjan, Iran: major pathogens and yield loss estimates

2008 ◽  
Vol 37 (6) ◽  
pp. 546 ◽  
Author(s):  
B. Naseri
Keyword(s):  
Common Bean ◽  
Root Rot ◽  
Yield Loss ◽  
Major Pathogens

scholarly journals Biological control of Phaseolus vulgaris and Pisum sativum root rot disease using Trichoderma species

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Hammad Abdelwanees Ketta ◽  
Omar Abd El-Raouf Hewedy
Keyword(s):  
Phaseolus Vulgaris ◽  
Pisum Sativum ◽  
Common Bean ◽  
Root Rot ◽  
Fungal Pathogens ◽  
Plant Diseases ◽  
Root Rot Disease ◽  
Pea Root ◽  
Rot Disease ◽  
Pea Root Rot

Abstract Background Root rot pathogens reported to cause considerable losses in both the quality and productivity of common bean (Phaseolus vulgaris L.) and pea (Pisum sativum L.). It is an aggressive crop disease with detriment economic influence caused by Fusarium solani and Rhizoctonia solani among other soil-borne fungal pathogens. Destructive plant diseases such as root rot have been managed in the last decades using synthetic pesticides. Main body Seeking of economical and eco-friendly alternatives to combat aggressive soil-borne fungal pathogens that cause significant yield losses is urgently needed. Trichoderma emerged as promising antagonist that inhibits pathogens including those inducing root rot disease. Detailed studies for managing common bean and pea root rot disease using different Trichoderma species (T. harzianum, T. hamatum, T. viride, T. koningii, T. asperellum, T. atroviridae, T. lignorum, T. virens, T. longibrachiatum, T. cerinum, and T. album) were reported both in vitro and in vivo with promotion of plant growth and induction of systemic defense. The wide scale application of selected metabolites produced by Trichoderma spp. to induce host resistance and/or to promote crop yield, may represent a powerful tool for the implementation of integrated pest management strategies. Conclusions Biological management of common bean and pea root rot-inducing pathogens using various species of the Trichoderma fungus might have taken place during the recent years. Trichoderma species and their secondary metabolites are useful in the development of protection against root rot to bestow high-yielding common bean and pea crops.

scholarly journals Pathogenic and molecular characterization of Pythium species inducing root rot symptoms of common bean in Rwanda

2011 ◽  
Vol 5 (10) ◽  
pp. 1169-1181 ◽  
Author(s):  
Nzungize J ◽  
Gepts P ◽  
Buruchara R ◽  
Buah S ◽  
Ragama P ◽  
...  
Keyword(s):  
Common Bean ◽  
Molecular Characterization ◽  
Root Rot ◽  
Pythium Species

scholarly journals Resistance of advanced common bean lines to Fusarium root rot

2012 ◽  
Vol 37 (6) ◽  
pp. 393-398 ◽  
Author(s):  
Alessandro Nicoli ◽  
Laércio Zambolim ◽  
Trazilbo J. Paula Júnior ◽  
Rogério F. Vieira ◽  
Hudson Teixeira ◽  
...  
Keyword(s):  
Common Bean ◽  
Root Rot ◽  
Fusarium Root Rot

INFLUENCE OF SPRING SEEDING DATE ON YIELD LOSS FROM ROOT ROT OF BARLEY

1976 ◽  
Vol 56 (3) ◽  
pp. 741-743 ◽  
Author(s):  
H. W. JOHNSTON
Keyword(s):  
Root Rot ◽  
Yield Loss ◽  
Seeding Date

not available

Root-rot resistance in common bean

1993 ◽  
Vol 73 (1) ◽  
pp. 365-367 ◽  
Author(s):  
J. C. Tu ◽  
S. J. Park
Keyword(s):  
Phaseolus Vulgaris ◽  
Rhizoctonia Solani ◽  
Common Bean ◽  
Fusarium Oxysporum ◽  
Key Words ◽  
Fusarium Solani ◽  
Root Rot ◽  
Pythium Ultimum ◽  
Growth Room

A bean (Phaseolus vulgaris) line, A - 300, resistant to Rhizoctonia solani and Fusarium oxysporum was introduced into Ontario from Colombia. The results of tests conducted in a root-rot nursery, in a greenhouse and in a growth room showed that this bean line is resistant to Fusarium solani f. sp. phaseoli and Pythium ultimum. Key words: Bean, Phaseolus vulgaris, root rot resistance

scholarly journals Characterization and pathogenicity of soil borne pathogens inducing root rot symptoms in common bean in Rwanda

2018 ◽  
Vol 6 (04) ◽  
Author(s):  
Mukamuhirwa Floride ◽  
Butare Lewis ◽  
Ruhakana Albert ◽  
Uzayisenga Bellancile ◽  
Mukantwali Christine ◽  
...  
Keyword(s):  
Common Bean ◽  
Root Rot ◽  
Control Program ◽  
Yield Potential ◽  
Fusarium Spp ◽  
Pathology Laboratory ◽  
Ecological Zones ◽  
Soil Borne Pathogens ◽  
Bean Root ◽  
Bean Crop

Though Rwanda is among the highest common bean producers and consumers, this crop is still challenged by different factors including root rot diseases resulting in low yield potential. Root rot diseases can cause up to 100% of yield loss. Despite different soil borne pathogens causing bean root rot diseases; there is no recent literature that clearly documents the most aggressive ones affecting common beans in Rwanda. This study aimed at identifying the root rot pathogens affecting bean crop in Rwanda. A survey was conducted to collect bean samples showing root rot symptoms in 12 agro -ecological zones where bean crop is mostly grown. The selection of samples was based on the level of contamination and the purity of cultures. A total number of 132 samples were therefore selected and considered for further analysis. The pathogen isolation was done in Rubona at Rwanda Agriculture and Animal Resources Development Board (RAB) Biotechnology and Pathology laboratory. Structural characterization of soil borne pathogens was also carried out along with pathogenicity evaluation. The growth rate of identified pathogens were significantly different (P<0.001). Significant differences were observed among isolates inoculated on both plantlets and seeds (P<001). Four root rot diseases were identified and characterized including Rhizoctonia spp, Fusarium spp,Sclerotium spp and several Pythium spp. The four pathogens were mostly observed in Northern and Southern parts of Rwanda than East and Western parts of Rwanda. Morphological characterization showed that Fusarium spp, Rhizoctonia spp and Sclerotium spp were predominant than Pythium species. Fusarium spp was identified as the most predominant fungal pathogen while Sclerotium spp was the most virulent pathogen. The present study suggests bean root rot disease control program to reduce losses associated with these diseases especially the use of resistant varieties since the fungi are widespread and survive in soils for a long period of time.

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