Влияние фунгицидных протравителей на выход товарной продукции и морфобиометрические показатели тюльпанов при ранневесенней выгонке

Abstract

Tulips are traditionally estimated as the freshest flowers during the spring holidays. At the same time, the imported planting material for early spring sprouting is 100% (or close to this value). Affection by mycosis of imported planting material remains a topical issue. Depending on degree of damage it affects the yield of commercial output and its quality. Studies conducted in the phytotron, an enclosed research greenhouse, carried out by the Department of Remote Hybridization of the Tsytsin Main Botanical Garden of Russian Academy of Science (GBS RAS) including two most popular varieties of tulips have showed that the planting material from Netherlands has a prevalence of mycoses from 47,5 to 99,5%.Preplant treatment by fungicide protectant has affected the acceleration of the onset of the phase of the full color phase of buds for 3-5 days and has a mixed impact on plant height and glass length. The treatment of bulbs with Lamador, (SC, suspension concentrates) had a retardant effect. On the Presto variety, the height of commercial products was 2.7cm lower than the control variant, on the Dynasty variety by 1.2 cm. The treatment of bulbs with the Maxim (SC, suspension concentrates) had the opposite effect. The cutting height was higher than in the control version. At the same time, treatment with fungicidal protectants did not reduce the development of mycoses on tulip bulbs. Keywords: TULIPS, EARLY SPRING GROWING, PLANT PROTECTION, PROTECTANT, FUNGICIDE TREATMENT, BULBS