EVALUATION OF INTRODUCED PLUM CULTIVARS UNDER AGROCLIMATIC CONDITIONS OF PLOVDIV REGION, BULGARIA

Published in Scientific Papers. Series B, Horticulture, Volume LXII
Written by Valentina BOZHKOVA, Petar SAVOV

The study was carried out in the experimental plantation of the Fruit-Growing Institute - Plovdiv in the period 2014 - 2016 with six German plum cultivars: ‚'Jojo', 'Topstar plus', 'Topgigant plus', 'Toptaste' and 'Tophit plus' compared to 'Stanley' as a standard. The tree volume, trunk diameter, angle of the skeletal branches, annual shoot length growth, average number of flower buds on spurs and shoots, some phenological characteristics, fruit biometrical analyses, chemical composition and the sensory characteristics were studied. The biggest tree volume and trunk diameter were calculated for the cultivars 'Toptaste' and 'Stanley'. The largest angle of skeletal branches was measured on 'Jojo'. The biggest shoot length was recorded in 'Tophit plus'. The earliest flowering time was observed on 'Jojo' and 'Toptaste', the latest one on the 'Topstar plus' and 'Tophit plus'. The ripening period of the investigated cultivars was in August and only for 'Stanley' and 'Tophit plus' in September. According to the biometric data 'Topgigant plus' and 'Tophit plus' were with the largest fruits in size. The highest sugar content and total soluble solid were found of 'Toptaste's fruits. The investigated cultivars are suitable to grow under agroclimatic conditions of Plovdiv region.

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BOZHKOVA V., SAVOV P. 2018, EVALUATION OF INTRODUCED PLUM CULTIVARS UNDER AGROCLIMATIC CONDITIONS OF PLOVDIV REGION, BULGARIA. Scientific Papers. Series B, Horticulture, Volume LXII, Print ISSN 2285-5653, 77-82.


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