Abstract:

This research was carried out in 2018-2019 as the first stage of selection breeding in hawthorn genotypes found naturally in Yıldızeli and Şarkışla districts and villages of Sivas province. Among the total 4497 hawthorn genotypes identified in the study area, 39 healthy, productive and large-fruited hawthorn genotypes, which were determined by pre-selection, were analyzed in the first year with the modified weighted ranking method according to relative yield and fruit size ((by weight) criteria. By means of this analysis, 12 hawthorn genotypes selected from 39 hawthorn genotypes were examined for phenological and morphological observations as well as some fruit characteristics in the second year. These were average fruit weight (g), fruit width (mm), fruit length (mm), number of seeds per fruit, 100 seeds weight (g), soluble solid content (SSC) (%), total dry matter (%), pH and titratable acidity (%). The harvest dates of the genotypes were between September 23-28. In 12 selected hawthorn genotypes, average fruit weights were 3.0-6.2 g, fruit length 13.1-17.7 mm, fruit width 14.7-20.6 mm, number of seeds 2.9- 5.1 seeds/fruit, SCC 16.20-26.3%, 100 seeds weight 7.12-20.3 g, total dry matter 30.61-46.85%, pH 3.30-3.85, TA 0.82-2.75% in the second year. The hawthorn genotypes 58YLDZ19, 58YLDZ20, 58YLDZ17 and 58ŞRKL02, which received the highest scores among these genotypes by the modified weighted ranking method, were suggested as promising cultivar candidates in the first stage of selection.

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