Dynamic Analysis of the Evolution of Cereus peruvianus (Cactaceae) Areas Attacked by Phoma sp.

Notulae Scientia Biologicae. 2009;1(1):41-45 DOI 10.15835/nsb113539

 

Journal Homepage

Journal Title: Notulae Scientia Biologicae

ISSN: 2067-3205 (Print); 2067-3264 (Online)

Publisher: University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca

Society/Institution: Horticulture and Forestry Society from Transylvania (SHST)

LCC Subject Category: Agriculture: Agriculture (General) | Science: Science (General)

Country of publisher: Romania

Language of fulltext: English

Full-text formats available: PDF

 

AUTHORS

Gyorgy FESZT (Alexandru Borza Botanical Garden, 42 Republicii Street, Cluj-Napoca)
Lucica MIHALTE (University of Agricultural Science and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca)
Radu SESTRAS (University of Agricultural Science and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 12 weeks

 

Abstract | Full Text

Cereus Peruvianus (night blooming Cereus, or peruvian apple) is one of the sensitive species to Phoma attack. Photographic images can intercept a certain phytopathology, at a certain moment. The computerized analysis of such an image turns into a value the spread which the phytopathological process has at that moment. The purpose of this study is to assimilate the technique of achieving successions of digital photos of Cereus peruvianus f. monstruosa attacked by Phoma sp. Parallely with recording the images, with the help of Rhythm digital temperature humidity controller, were recorded data about the green house microclimate (air humidity-minimum and maximum, temperature-minimum and maximum). In the first stage of the study, the attack presents small fluctuations, reaching a high level in days with low temperatures. So, the most significant growths were recorded in the periods: 10. 02. 2005-20. 02. 2005 with an affected area of 10.97-8.82 = 2.15 and 11. 03. 2005-22. 04. 2005 with growth differences of 14.67-13.32 = 1.35. Generally, the affected areas grow in days with low minimum temperatures. The great advantage of this technique is represented by the possibility of using in situ in home areas of species or crop plants in fields. Repeated images, achieved in time, then overlapped, can provide important data on the evolution of affected areas.