Scientific Papers Series B Horticulture

Total carbohydrate content initially rangedbetween 9.60% and 11.26% depending on thevariant, with an average of 10.50%. The lowestvalues were seen in Idared cultivar and thehighest at Jonathan cultivar. During coldstorage, the carbohydrate content decreased byaverage of 8.7%. Initial content of ascorbic acid(vitamin C) ranged from 6.70-9.65 mg/100gdepending on the variant, with an average of8.81 mg/100g. Fruits with high content ofascorbic acid belong to the Florinaand Jonathan cultivars. During cold storage,the ascorbic acid content decreased in all cases,with an average of 16.4%. The results of themeasurements regarding the weight average,structural-texture firmness and the form indexof apples are shown in table 5.Table 5. Physical features of applesNo.Average Firmness FormVariant Cultivarcrt. weight (g) (kgf/cm²) index1 V1 Jonathan 171.05 3.47 0.842 V2 Generos 207.37 4.85 0.843 V3 Idared 209.20 4.48 0.834 V4 Florina 179.58 6.24 0.92Golden5 V5delicious149.16 4.47 0.94Overall average 183.27 4.70 0.87Influence of drip irrigation on organolepticOrganoleptic test results from Apple(appearance, firmness, taste) after storage arepresented in Table 6In terms of appearance it was found that theGeneros cultivar has obtained the highest score(15.0) of all experimental variantswhile Golden Delicious had the lowest scorefrom experience. From the point of view ofapple appearance all variants showed a highscore from 12.00–15.00 points depending onthe variant, with an overall average of 13.46points.Regarding firmness, the apples obtained from27.00-34.00 points depending on the variant,with an overall average of 31.40 points. Topratedvariants were Idared and Florina, thelowest being Jonathan cultivar.Meanwhile Jonathan and Golden got the lowestscore (12.0).Regarding taste, the apples obtained from42.86-48.57 points depending on the variant,with an average of 45.14 points.Table 6. Organoleptic assessment of apples after storageRating cultivar taste - (points)TheCultivar FirmnessGrade PlaceAspect Taste averageamountsVeryJonathan 12.86 27.00 44.29 84.15good5VeryGeneros 15.00 32.00 48.57 95.57good1VeryIdared 13.71 34.00 44.29 92.00good3VeryFlorina 13.71 34.00 45.71 93.42good2Goldendelicious 12.00 30.00 42.86 84.86 Verygood4Overallaverage13.46 31.4 45.14 90.00 The highest score for taste assessing wasobtained by Generos. At the opposite side itwas Golden Delicious cultivar with the lowestscore of assessment.The total score in apples taste assessing was84.15-95.57 points depending on variant andrated 'very good', with an overall average of90.00 points. On the first place it standsGeneros. Latest seats were occupied in order byGolden Delicious and Jonathan.CONCLUSIONSConclusions on lossesAmong the cultivars tested best behaved wasGeneros, which ranked first a total loss of5.94% without losses through spoilage. GoldenDelicious presented the worst results, with24.20% total losses of which 15.58% throughspoilage.Conclusions on fruit firmnessCompared to the initial firmness of 3.71-4.82kgf / cm ² depending on the cultivar, applesafter storage showed firmness values of 3.23-3.93 kgf / cm ² depending on the cultivar.The apples firmness dropped during coldstorage levels in average with 7-10%, with arange between 3.68-26.76% depending on thecultivar. Between cultivars were observed inthis order Idared, Jonathan and Generos withfruit firmness reduction between 3.68-5.85%.On the last place between cultivars was locatedGolden Delicious whose firmness decreased by26.76%.102