Acta Agronomica Hungarica
Volume/Issue:
Volume 53: Issue 4
Sources of infection and methods of control of Septoria oenotheraein evening primrose (Oenotheraspp.)
Authors:
M. N. O'Connell Scotia Pharmaceuticals Ltd., Plant Technology Centre, Writtle College Chelmsford, UK

Search for other papers by M. N. O'Connell in
Current site
Google Scholar
PubMed Close
,
V. Kethees Wararajah Writtle College Chelmsford, UK

Search for other papers by V. Kethees Wararajah in
Current site
Google Scholar
PubMed Close
,
A. F. Fieldsend University of Debrecen Centre of Agricultural Sciences Debrecen, Hungary

Search for other papers by A. F. Fieldsend in
Current site
Google Scholar
PubMed Close
, and
F. J. Cullum Writtle College Chelmsford, UK

Search for other papers by F. J. Cullum in
Current site
Google Scholar
PubMed Close
Pages:
385–391
Online Publication Date:
10 Jan 2006
Publication Date:
01 Dec 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1556/AAgr.53.2005.4.4
Keywords:
evening primrose; evening primrose; evening primrose; Oenothera spp.; Septoria oenotherae; crop loss; seed-borne infection; hot water treatment
Restricted access

Septoria oenotheraeWest. can cause severe damage in overwintered crops of evening primrose (Oenothera spp.), including complete crop loss. Damage would be reduced if the sources of infection could be identified and removed. Examination of seed capsules inoculated with S. oenotheraeshowed that 96% of the pycnidia present were on the outside of the capsules, and seeds bearing pycnidia were only rarely found. However, internal infection of seeds from these capsules was demonstrated by both a blotter test and by culturing on agar media. Immersing seeds in 45°C water for 25 minutes destroyed viable fungal propagules located internally in seeds without reducing seed germination. The pathogen was also shown to overwinter in the pycnidial stage on stems left standing in the field. It is concluded that both internal seed-borne infection and overwintered crop debris are potential sources of infection in commercial seed stocks of evening primrose.

  • Rawlinson, C. J., Dover, P. A. (1986): Pests and diseases of some new and potential alternative arable crops for the United Kingdom. Proceedings of the British Crop Protection Conference, 1986., Thornton Heath, UK, BCPC Publications, pp. 721-732.

    Proceedings of the British Crop Protection Conference , () 721 -732 .

  • Anonymous (1993): International rules for seed testing. Rules 1993. Seed Sci. Technol., 21 (Suppl.), 1-288.

  • Bant, J. H., Storey, I. F. (1952): Hot water treatment of celery seed in Lancashire. Plant Path., 1, 81-83.

    'Hot water treatment of celery seed in Lancashire. ' () 1 Plant Path. : 81 -83 .

  • Simpson, M. J. A., O'Connell, M. N., Stobart, R. M., Cullum, F. J. (1995): Occurrence and viability of Septoria oenotherae in commercial seed samples of evening primrose. Plant Pathol., 44, 547-551.

    'Occurrence and viability of Septoria oenotherae in commercial seed samples of evening primrose. ' () 44 Plant Pathol : 547 -551 .

    • Search Google Scholar

  • Stobart, R. M., Simpson, M. J. A., Cullum, F. J. (1999): Aspects of cultural and chemical control of the pathogen Septoria oenotherae in evening primrose (Oenothera spp.). Plant Varieties and Seeds, 12, 53-63.

    'Aspects of cultural and chemical control of the pathogen Septoria oenotherae in evening primrose (Oenothera spp.). ' () 12 Plant Varieties and Seeds : 53 -63 .

    • Search Google Scholar

  • Fieldsend, A. F., Morison, J. I. L. (2000a): Contrasting growth and dry matter partitioning in winter and spring evening primrose crops (Oenothera spp.). Field Crops Res., 68, 9-20.

    'Contrasting growth and dry matter partitioning in winter and spring evening primrose crops (Oenothera spp.). ' () 68 Field Crops Res : 9 -20 .

    • Search Google Scholar

  • Reeleder, R. D. (1994): Factors affecting the infection of evening primrose (Oenothera biennis) by Septoria oenotherae. Can. J. Plant Pathol., 16, 13-20.

    'Factors affecting the infection of evening primrose (Oenothera biennis) by ' () 16 Septoria oenotherae. Can. J. Plant Pathol : 13 -20 .

    • Search Google Scholar

  • Richards, G. S. (1951): Factors influencing sporulation by Septoria nodorum. Phytopathol., 41, 571-578.

    'Factors influencing sporulation by ' () 41 Septoria nodorum. Phytopathol : 571 -578 .

    • Search Google Scholar

  • Fieldsend, A. F., Morison, J. I. L. (2000b): Climatic conditions during seed growth significantly influence oil content and quality in winter and spring evening primrose crops (Oenothera spp.). Industrial Crops and Products, 12, 137-147.

    'Climatic conditions during seed growth significantly influence oil content and quality in winter and spring evening primrose crops (Oenothera spp.). ' () 12 Industrial Crops and Products : 137 -147 .

    • Search Google Scholar

  • Gratwick, M., Southey, J. F. (1986): Hot-water treatment of plant material. MAFF Reference Book 201, HMSO, London, pp. 51-52.

    MAFF Reference Book 201 , () 51 -52 .

  • Horrobin, D. F. (1992): Nutritional and medical importance of gamma-linolenic acid. Prog. Lipid Res., 31, 163-194.

    'Nutritional and medical importance of gamma-linolenic acid. ' () 31 Prog. Lipid Res : 163 -194 .

    • Search Google Scholar
  • Collapse
  • Expand
Cover Acta Agronomica Hungarica
Acta Agronomica Hungarica
Print ISSN:
0238-0161
Online ISSN:
1588-2527

Acta Agronomica Hungarica
Language English
Russian
German
French
Size  
Year of
Foundation		 1950
Publication
Programme		 ceased
Volumes
per Year		  
Issues
per Year		  
Founder Magyar Tudományos Akadémia   
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-0161 (Print)
ISSN 1588-2527 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jan 2025 18 0 0
Feb 2025 35 0 0
Mar 2025 22 0 0
Apr 2025 9 0 0
May 2025 10 0 0
Jun 2025 19 0 0
Jul 2025 0 0 0