scholarly journals Efficacy of biocontrol agents in the management of head rot of cabbage (Brassica oleracea var. capitata) caused by Sclerotinia sclerotiorum

2016 ◽  
Vol 10 (40) ◽  
pp. 1711-1714 ◽  
Author(s):  
Krishnamoorthy K. Kamesh ◽  
A. Sankaralingam ◽  
S. Nakkeeran
Keyword(s):  
Brassica Oleracea ◽  
Sclerotinia Sclerotiorum ◽  
Biocontrol Agents ◽  
Head Rot

Identification of genomic regions involved in resistance against Sclerotinia sclerotiorum from wild Brassica oleracea

2012 ◽  
Vol 126 (2) ◽  
pp. 549-556 ◽  
Author(s):  
Jiaqin Mei ◽  
Yijuan Ding ◽  
Kun Lu ◽  
Dayong Wei ◽  
Yao Liu ◽  
...  
Keyword(s):  
Brassica Oleracea ◽  
Sclerotinia Sclerotiorum ◽  
Genomic Regions

Yeasts and Bacillus spp. as potential biocontrol agents of Sclerotinia sclerotiorum in garlic

2020 ◽  
Vol 261 ◽  
pp. 108931 ◽  
Author(s):  
Vytória Piscitelli Cavalcanti ◽  
Neilton Antonio Fiusa Araújo ◽  
Natália Bernardes Machado ◽  
Paulo Sérgio Pedroso Costa Júnior ◽  
Moacir Pasqual ◽  
...  
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Biocontrol Agents ◽  
Bacillus Spp

scholarly journals Diversity of soil-dwelling Trichoderma in Colombia and their potential as biocontrol agents against the phytopathogenic fungus Sclerotinia sclerotiorum (Lib.) de Bary

2012 ◽  
Vol 79 (1) ◽  
pp. 74-85 ◽  
Author(s):  
Alexander Smith ◽  
Camilo A. Beltrán ◽  
Manabu Kusunoki ◽  
Alba M. Cotes ◽  
Keiichi Motohashi ◽  
...  
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Biocontrol Agents ◽  
Phytopathogenic Fungus

SCLEROTINIA HEAD ROT IN SAFFLOWER: ASSESSMENT OF RESISTANCE AND EFFECTS ON YIELD AND OIL CONTENT

1985 ◽  
Vol 65 (2) ◽  
pp. 259-265 ◽  
Author(s):  
H. -H. MÜNDEL ◽  
H. C. HUANG ◽  
G. C. KOZUB
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Oil Content ◽  
Field Experiments ◽  
Growing Season ◽  
Carthamus Tinctorius ◽  
Yield Losses ◽  
Carpogenic Germination ◽  
Early Maturing ◽  
Parental Lines ◽  
Head Rot

Field experiments were conducted in 1982 and 1983 to screen 20 lines of safflower (Carthamus tinctorius L.) for resistance to head rot caused by Sclerotinia sclerotiorum (Lib.) de Bary. Plots were artificially infested with sclerotia of S. sclerotiorum at seeding and irrigated during the growing season to maintain adequate moisture for carpogenic germination of sclerotia and production of apothecia. The reaction of each line to S. sclerotiorum was similar for the 2 years. Severity of head rot varied significantly among the 20 lines tested, ranging from 6% for Lesaf 34C-OO to 62% for Gila in 1982 and from 0.3% for Lesaf 34C-OO to 31% for PCA in 1983. Level of resistance was not related to the level of maturity of the lines. Yield losses ranged from 81 kg/ha for Lesaf 34C-OO to 678 kg/ha for Gila in 1982 and from 14 kg/ha for Lesaf 34C-OO to 935 kg/ha for PCA in 1983. Healthy plants averaged 4.4% more oil in the seed than did the corresponding parental lines. This study has demonstrated the possibility of developing early maturing safflower lines resistance to sclerotinia head rot for production on the Canadian Prairies.Key words: Carthamus tinctorius, Sclerotinia sclerotiorum

scholarly journals Effect of sunflower head rot [Sclerotinia sclerotiorum (Lib.) de Bary] on impurities in harvested product, and oil content and acidity.

1969 ◽  
Vol 85 (3-4) ◽  
pp. 177-186
Author(s):  
María Eugenia Agüero ◽  
Víctor R. Pereyra ◽  
Alberto R. Escande
Keyword(s):  
Key Words ◽  
Sclerotinia Sclerotiorum ◽  
Oil Content ◽  
Disease Incidence ◽  
Head Rot

The effect of sunflower head rot on impurities in the harvested product (HP), oil content (OC) and oil acidity (OA) was studied. Levels of 0,10, 20, 30, 40, 50,80 and 100% of disease incidence (Dl) were analyzed. The HP was either weighed and left untouched or it was divided into three fractions: seeds, sclerotia and other impurities. For OC and OA measurement, we analyzed samples from each Dl level composed of seeds (S), seeds and scleratia (S+Sci), seeds and other impurities (S+Ol), and untouched original samples (S+Sct+Ol). Disease incidence significantly affected the composition of the harvested product. At greater Dl levels, seed percentage went down and impurities rose. Sclerotia were the most abundant impurities. With 100% Dl, seed represented 65% and sclerotia 25% of the HP. At greater Dl ievels, OC went down and OA rose. Content of seeds in the HP defined OC. Sclerotia content was the main reason for the increase in OA. At 100% Dl, S+Scl samples yielded 31% Jess OC and 53% more OA than the S samples. Key words: sunflower, Sclerotinia sclerotiorum, oil content, oil acidity

scholarly journals New isolates of Trichoderma antagonistic to Sclerotinia sclerotiorum

2016 ◽  
Vol 16 (3) ◽  
Author(s):  
Eder Marques ◽  
Irene Martins ◽  
Mariana de Oliveira Cardoso Cunha ◽  
Marcello Arrais Lima ◽  
João Batista Tavares da Silva ◽  
...  
Keyword(s):  
Biological Control ◽  
Information System ◽  
Genetic Resources ◽  
Sclerotinia Sclerotiorum ◽  
Antagonistic Activity ◽  
Biocontrol Agents ◽  
Complete Inhibition ◽  
Its Sequences ◽  
White Mold

Abstract Forty-nine isolates of Trichoderma from the Brazilian Midwest were evaluated for their antagonistic activity in vitro against Sclerotinia sclerotiorum (causal agent of white mold), which were then identified based on their nuclear ribosomal ITS sequences. Paired culture tests showed that all isolates exhibited some antagonism, with a maximum of 77% mycelial inhibition and complete inhibition of sclerotia production. Two isolates were found to be the most promising biocontrol agents, considering both antagonistic parameters (CEN1253 - T. koningiopsis and CEN1265 - T. brevicompactum). Five different species were identified: T. harzianum (23), T. spirale (9), T. koningiopsis (8), T. brevicompactum (7) and T. asperellum (2). These isolates are stored in the Embrapa Fungi Collection for Biological Control and the information obtained in the experiments will be incorporated into the database of biological assets within the genetic resources information system (Allele) and be made available for further studies.

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