Viinapuu (Vitis) lehtede mikrofloora sõltuvalt taimekaitsest ja osoonitud veega pritsimisest
Laen...
Kuupäev
2023
Kättesaadavus
06.09.2023
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Järjest enam otsitakse keskkonnasäästlikumaid meetodeid erinevate haiguste tõrjeks. Sellest
lähtuvalt oli magistritöö eesmärk välja selgitada viinapuude osoneeritud veega pritsimise mõju
jahukaste levikule. Teiseks eesmärgiks oli isoleerida lehtede pinda ja lehekudesid
koloniseerivaid seeni ja määrata seente kolooniaid moodustunud ühikute arvukus ning nende
tulemuste põhjal selgitada välja kasvuhoonessordi `Regent` ja avamaal sordi `Hasanski Sladki`
taimede osoonitud veega pritsimise mõju viinapuu lehtede mikrofloorale. Uuringus selgus, et
jahukaste esines ainult avamaal ja osoneeritud veega pritsimine avaldas positiivset mõju ainult
suvel, sügisel kui ilmastiku tingimused oli haiguse levikuks soodsad, mõju puudus. Ka
kiletunnelis avaldas osoneeritud veega pritsimine seenekolooniate arvukusele pärssivat mõju
ainult suvel. Tuvastati järgmised seeneliigid: Trichoderma asperellum, Fusarium sp., Botrytis
cinerea, Penicillium sp., Trichoderma harzianum, Peniophora sp. ja Phlebia acerina/rufa
Increasingly, more environmentally friendly methods are being sought to control various diseases. In this context, the aim of the thesis was to investigate the impact of spraying vines with ozonated water on the spread of powdery mildew. Subsequently, to isolate the fungi colonising the leaf surface and leaf tissues and to determine the abundance of fungal colonies and, on the basis of these results, to determine the effect of ozonated water spraying of plants of the cultivar 'Regent' in the high tunnel and of the cultivar 'Hasanski Sladki' in the open field on the microflora of vine leaves. The test results revealed that powdery mildew occurred only in the open field and that ozonated water spraying had an positive effect only in summer, with no effect in autumn, when weather conditions were favourable for the spread of the disease. Also in the high tunnel, spraying with ozonated water had an inhibitory effect on the development of fungal colonies only in summer, whereas in autumn it was beneficial. the following fungal species were identified: Trichoderma asperellum, Fusarium sp., Botrytis cinerea, Penicillium sp., Trichoderma harzianum, Peniophora sp. ja Phlebia acerina/rufa.
Increasingly, more environmentally friendly methods are being sought to control various diseases. In this context, the aim of the thesis was to investigate the impact of spraying vines with ozonated water on the spread of powdery mildew. Subsequently, to isolate the fungi colonising the leaf surface and leaf tissues and to determine the abundance of fungal colonies and, on the basis of these results, to determine the effect of ozonated water spraying of plants of the cultivar 'Regent' in the high tunnel and of the cultivar 'Hasanski Sladki' in the open field on the microflora of vine leaves. The test results revealed that powdery mildew occurred only in the open field and that ozonated water spraying had an positive effect only in summer, with no effect in autumn, when weather conditions were favourable for the spread of the disease. Also in the high tunnel, spraying with ozonated water had an inhibitory effect on the development of fungal colonies only in summer, whereas in autumn it was beneficial. the following fungal species were identified: Trichoderma asperellum, Fusarium sp., Botrytis cinerea, Penicillium sp., Trichoderma harzianum, Peniophora sp. ja Phlebia acerina/rufa.
Kirjeldus
Magistritöö
Aianduse õppekaval
Märksõnad
magistritööd, osoneeritud vesi, viinapuu-jahukaste, ebajahukaste, seenhaiguste levik