Scientific Papers Series B Horticulture

Figure 1. Flowering period and blackberry fruit growthFigure 2. Maturation period of blackberry fruits, varietyDarrow The varietyDarrow20112012Table 3. Plants development and fructification capacity of blackberry varietiesAverage length ofPresence of thornsstems, mthorns branches 1.151.21Number of stemsm/bush, pcs.911Average weight ofa fruit (g)Mean 1.18 10 2.9 286Smoothstembranches without 1.5883.92011thorns2.1384.22012Mean 1.86 8 4.1 224Thornfree20112012branches withoutthorns3.033.55992.73.14.75.1Number offruits/bush, piece.Mean 3.29 9 4.9 483Limit ofvariation 1.15-3.55 8-11 2.7-5.1 195-540216355195252426540The variety Smoothstem average length of thestrains corresponding ranged between 1.58 mand 2.13 m. The variety Thornfree reached thehighest values, the average length of the strainswas corresponding 3.03 m and 3.55 m, datafrom the emerge as the most vigorous variety.The average length of stems varied between1.18 and 3.29 m, and the limit of changesdeviated from 1.15 to 3.55 m.Average number of strains of the blackberrybush varieties has varied on years from 8shoots on the variety Smoothstem and up to 11pcs. on the variety Darrow.mass of blackberryfruit ranged from 2.9 g on variety Darrow to4.9 g on variety Thornfree. Limit of variationfrom the average mass of blackberry fruitranged from 2.7 to 5.1 g. The average values offruits on the blackberry bush ranged from 224pcs. the variety Smoothstem up to 483 pcs. thevariety Thornfree limit of variation deviatedbetween 195-540 fruits / bush.CONCLUSIONSAs a result of research carried out at thediscretion Darrow blackberry varieties,Smoothstem, Thornfree included in the study -found that:The period between budding and floweringvaries between 31-46 days flowering periodfrom 16 to 23 days.Fruit maturation takes place between 55-64days from the beginning of flowering.During the ripening of blackberry fruit isbetween 88 to 114 days.The average length of blackberry stems settledin variety Darrow 1.18 m, 1.86 m in variety andvariety Smoothstem Thornfree 3.29 mAverage number of strains of the blackberrybush was 8 pcs. on the variety Smoothstem, 9pcs. on the variety Thornfree, and 10 pcs. onthe variety Darrow.The average weight of blackberry fruits, settledin the amount of 2.9 g on variety Darrow, on112