Evaluation of five blueberry varieties cultivated in fruit- growing region Junik - Western Kosovo

For 6 years in a row, the vegetative and production characteristics of 5 North American blueberry cultivars have been evaluated in the Junik area in a randomized complete block with four replicates of each cultivar and five bushes per replication. Vegetative and fruit traits were evaluated for the Duke, Draper, Legacy, Bluecrop and Huron varieties in the experiment. The data have been statistically processed and tabulated. Based on the level of appearance of the features, the scheme based on the International Blueberry descriptor (UPOV), has been drawn. Duke is earlier variety in fruit set and harvesting. Huron stands out with fruit firmness, while Duke stands out with higher Titratable acidity. Draper gave the highest yield of the 5 varieties in the experiment. Bluecrop has lower fruit firmness. Despite the genetic features, each cultivar in certain agro-ecological conditions shows certain levels of production characteristics that determine their economic value. Therefore, the introduction of new crops/species in areas where they have not been cultivated before represents a challenge for the production community. The purpose of this experiment was to determine the degree of adaptability of these varieties in the Junik area. Based on results from the experiment are made recommendations

Determination the Dynamics of Occurrence of Scolytus Rugulosus on Fruit Orchards in Junik Region _ Kosovo

Top Fruit crops represent important economic activity in the Junik area, in Western Kosovo. An ever-expanding young industry faces with stresses caused by Scolytus Rugulosus (Shothole borer), an insect-pest which damages various parts of the fruit trees. This study was carried out to determine the dynamics of the pest fly in Top Fruit plantations with Apple, Sweet Cherry, and Sour Cherry crops. A passive sampling method was implemented with the use of Ethanol traps for trapping insects. The counting of trapped insects was done on daily basis. Temperature and air humidity in the study area were measured too. First adults were detected in the second week of March while the maximum emerge was in April month. At temperatures of 18-20 0 C the presence of adult insect increases, however, in late March and early April when temperatures have dropped below zero during the night and went up to + 7 0 C during the day, a significant number of adult insects were trapped too

Determination the Dynamics of Occurrence of Scolytus Rugulosus on Fruit Orchards in Junik Region _ Kosovo

Top Fruit crops represent important economic activity in the Junik area, in Western Kosovo. An ever-expanding young industry faces with stresses caused by Scolytus Rugulosus (Shothole borer), an insect-pest which damages various parts of the fruit trees. This study was carried out to determine the dynamics of the pest fly in Top Fruit plantations with Apple, Sweet Cherry, and Sour Cherry crops. A passive sampling method was implemented with the use of Ethanol traps for trapping insects. The counting of trapped insects was done on daily basis. Temperature and air humidity in the study area were measured too. First adults were detected in the second week of March while the maximum emerge was in April month. At temperatures of 18-200C the presence of adult insect increases, however, in late March and early April when temperatures have dropped below zero during the night and went up to + 70C during the day, a significant number of adult insects were trapped too

EFFECT OF PROHEXADIONE-CALCIUM (REGALIS) ON DIFFERENTIATION OF FLOWER BUDS AND FRUIT SET IN PEAR VAR. PASSE CRASSANE

Summer pruning and Prohexadione-Ca were the strategies that produced the next shortest shoot length; however, summer pruning registered the lowest return bloom and accumulated yield. Prohexadione-Ca did not have any significant negative effect on either return bloom or yield. Prohexadione-calcium (Regalis) as a shoot growth retardant that inhibits gibberellins biosynthesis has been used to improve the differentiation of flower buds and fruit set in Pear var. Passe Crassane. The aim of this study was to evaluate the efficacy of applying Regalis by foliar applications in Passé Crassane pear orchards to reduce tree vigor or shoot growth and to control the alternate fruit production. Three different dosages were tested: 50ppm, 100ppm 150ppm. Regalis treatments ranging from 50 to 150 ppm were compared with control, without treatments. The first treatment was applied 7days after petal fall and the others every 10 days after the first treatment. Three different dosages were tested: 50ppm, 100ppm 150ppm. Regalis treatments ranging from 50 to 150 ppm were compared with control, without treatments. The first treatment was applied 7days after petal fall and the others every 10 days after the first treatment. The data was collected at the full bloom time and two weeks, at the time of fruit set. The flower number and the fruit number was significantly difference after the treatment of 150 ppm and 100ppm than the application of 50ppm and without treatment. The average fruit weight was greater than other treatments and than non treated-trees. Variability in soluble solids concentration (SSC,0Brix) was not significantly different between different treatment (50ppm, 100ppm and 150ppm)

FRUIT QUALITY PARAMETERS OF FIVE PEAR CULTIVARS IN WESTERN KOSOVO

This field experiment was designed to assess the quality of the pear fruits through some parameters in five different cultivars: ‘Willaim’, ‘Abate Fettel’, ‘Passe Crassane’, ‘Cure’ and ‘Santa Maria’. The experiment was conducted during 2013 on a pear orchard of 10 ha, in the first year of production. Quality parameters investigated in a trial in Western Kosovo were diameter, height, weight, firmness and the sugar content. The survey was carried out in four repetitions, where the results were statistically processed by ANOVA test. The results showed that, the larger diameter of fruit, was reached on avarage on Passe Crassane cultivar (81.86 mm), while Abate Fettel cv. showed the highest values of the height (147 mm) whereas, the highest weight performed Passe Crassane cv. (290 g), the highest values of the firmness of the fruit were found on William cv. (7.79 kg/0.5 cm2), finally the highest values of the sugar content of the fruit showed Abate Fettel cv. (16.38)