Plum phenology in Troyan region and the influence of climatic factors on phenophases

Boryana Stefanova

Abstract: Phenological observations are a good way to determine the response of plants to climatic factors to identify climate change in recent years. The study was carried out on the territory of RIMSA Troyan including plum cultivars, such as “Katinka”, “Tegera”, “Čačanska lepotica”, “Hanita”, “Stanley”, “Jojo”, ‘Elena’ in connection with the climatic conditions in the period of 2014-2018. The blossoming and ripening periods are determined, and the changes in the course of phenophases depending on the climatic factors of the respective vegetation period. It was found that “Jojo” cultivar blooms earlier in 2015 and 2017, while “Elena” blooms earlier in 2016 and 2018. In most years, the blossoming duration for each variety was 10-12 days. The climate phenology research can be used in the establishment of plantation in the choice of suitable cultivars for the specific climatic conditions. This allows to avoid the risks of climate abnormalities that are common in a given region that compromise the crops.

Keywords: climate; cultivar; observations; phenology; plum

Date published: 2019-08-21