Effects of Trichoderma asperellum [T1] on Botrytis cinerea [Pers.: Fr.], growth and yield of organic strawberry

• Autorzy: Kowalska J.

Warianty tytułu

PL

Efektywność Trichoderma asperellum [T1] w stosunku do Botrytis cinerea [Pers.] oraz wpływ zabiegu na wzrost i plon ekologicznej truskawki

• Języki publikacji: EN

Abstrakty

EN

Fungi Trichoderma spp. are present in nearly all soils and other habitats. Most of Trichoderma strains are efficient for control of some pathogens. Some strains induce plant native defence mechanisms. Botrytis cinerea [Pers.: Fr.] causes economic losses on a wide range of cultivated plants and stored fruits. In presented work Trichoderma asperellum [strain T1] isolated from commercial product was selected to apply in the field experiments. The trade bioproduct containing 5 × 108 of Trichoderma conidium per one gram was used in organic field strawberry. Treatments with microorganism-antagonist at concentration 10 g · l-1 were performed as a foliar spraying, three times during the growing season. Applied Trichoderma caused bigger and more vigorous growth. The insignificant presence of B. cinerea on harvested and stored fruits was found. The possibility of use of T. asperellum as biological control agent for post-harvest diseases and for prolongation of time storage was observed until 7 days after harvest. In the second season of research, statistical significantly higher yield of the treated plants (30.2%) was obtained compare to the untreated plants. Also the weight of aboveground part of plants (24.0%) and number of runners were increased.

PL

Grzyby Trichoderma spp. znajdują się w prawie wszystkich glebach i środowiskach. Wiele szczepów Trichoderma zdolnych jest efektywnie ograniczać patogeny. Część z nich wzbudza naturalne procesy obronne w roślinach. Botrytis cinerea [Pers.: Fr.] jest sprawcą ekonomicznych strat w wielu uprawach oraz w trakcie przechowywania plonów. W niniejszych badaniach wykorzystano szczep Trichoderma asperellum [T1] znajdujący się w produkcie handlowym, który stosowano w truskawkach uprawianych w systemie ekologicznym. Jeden gram biopreparatu zawiera 5 × 108 zarodników grzyba. Zabiegi opryskiwania nalistnego wykonano w dawce środka 10 g · l-1, trzy razy w trakcie sezonu. Po zastosowaniu produktu obserwowano zwiększony przyrost masy zielonej roślin. Objawy szarej pleśni na roślinach oraz na zebranych i przechowywanych owocach obserwowano incydentalnie. Stwierdzono możliwość wykorzystania T. asperellum jako biologicznego czynnika ograniczania zgnilizn pozbiorczych owoców, stwierdzono również jego przydatność do zwiększania zdolności owoców do przechowywania do siódmego dnia po zbiorach. W drugim roku badań stwierdzono statystycznie istotny wzrost plonowania roślin traktowanych (30,2%) w porównaniu do roślin kontrolnych. Ponadto potwierdzono statystyczny wzrost wagi części nadziemnych roślin traktowanych (24,0%) oraz większą liczbę produkowanych przez rośliny rozłogów.

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Hortorum Cultus
• Rocznik: 2011
• Tom: 10
• Numer: 4
• Opis fizyczny: p.107-114,ref.

Twórcy

autor

Kowalska J.

• Institute of Plant Protection - National Research Institute, Poznan, Poland

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