Abstract
Highbush blueberry is one of the most popular fruit-bearing culture in the world. But its cultivation is associated with a number of peculiarities, which must be considered when setting up plantations in a given region. To ensure large stable harvests cultivars require sufficient heat sum and time for successful formation of flower buds, which provide the next year’s harvest of berries. Initiation and formation of flower buds begins during crop maturation and ends with the growing season. According to our observation data, blueberry cultivars require no less than 100 days and a heat sum of no less than 900°C (of temperatures above 0°C) during this period to successfully initiate flower buds. Failing to meet this mark leads to a significant (2,0-2,5 times) drop in yield. When setting up industrial plantations it is important to consider these circumstances and to select the cultivars, maturation times of which allow the plants to successfully form the number of flower buds, which provide a consistent high yield and profitability of the grown culture in the given region.
Highlights
The most important economically viable trait of any type of fruit bearing crop is its productivity – a complex trait, which characterizes the genotype’s resilience to hostile climate conditions and diseases
When setting up industrial plantations it is important to consider these circumstances and to select the cultivars, maturation times of which allow the plants to successfully form the number of flower buds, which provide a consistent high yield and profitability of the grown culture in the given region
A similar situation could be seen with thermal time, both for individual months as well as for the entire growing season
Summary
The most important economically viable trait of any type of fruit bearing crop is its productivity – a complex trait, which characterizes the genotype’s resilience to hostile climate conditions and diseases. In addition to genetic traits, harvest size is affected by a wide variety of factors, in particular by the climate conditions of the region where the plant is grown. Some of these factors, such as, for example, the amount of moisture the plants receive, are controllable and can be adjusted in accordance with the needs of a plant. Others, such as the beginning and the end of the growing season, its length, thermal time, are impossible to manage artificially when growing the plant in open soil. As productivity of blueberry cultivars depends on how favorable
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