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Colony growth and sporulation of V. inaequalis at different temperatures and media
- Source :
- Zaštita bilja
- Publication Year :
- 2005
-
Abstract
- The largest number of fungicide treatments in disease control of apple are realised against apple scab. However, a small number of available fungicides which were frequently used in increased doses caused the problems of less susceptibility of pathogen to applied fungicides. The effect of different temperatures and media on pathogen colony growth and sporulation were investigated to find out the optimal conditions for pathogen development. The optimal temperature for colony growth was 15-20ºC, minimal around 1ºC, a maximal 27ºC. The most suitable medium for pathogen sporulatuiin was malt agar, and insignificantly less suitable was PDA. Sporulation was the more abundant at 15ºC (1,6 x 105 spora/ml).<br />Najveći broj tretmana u zaštiti jabuke izvodi se protiv prouzrokovača čađave pegavosti lista i krastavost plodova. Međutim, mali broj raspoloživih fungicida, često primenjih u povećanim količinama, uzrokuje pojavu smanjene osetljivosti patogena prema upotrebljavanim fungicidima. Zato se javila potreba ispitivanja ove pojave i u laboratorijskim uslovima. Da bi se ova istraživanja sprovela potrebno je ispitati uslove pod kojima patogen ima optimalni porast i fruktifikaciju, u cilju iznalaženja najboljih podloga i uslova za gajenje patogena koji bi poslužili u ispitivanjima njegove osetljivosti prema fungcidima u laboratorijskim uslovima. Prema dobijenim rezultatima, temperaturni optimum za porast kolonija je između 15º i 20ºC, minimum je oko 1ºC, a maksimum je 27ºC. Najpogodnija podloga za sporulaciju patogena je podloga od slada, a neznatno slabija sporulacija je na podlozi od krompira. Utvrđeno je da je intenzitet sporulacije najveći pri temperaturi od 15ºC, na podlozi od slada (1, 6 x 105 spora/ml).
Details
- Database :
- OAIster
- Journal :
- Zaštita bilja
- Notes :
- Zaštita bilja
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1098002220
- Document Type :
- Electronic Resource