IMPACT OF THE NUMBER OF CLUSTERS ON CARDINAL VARIETY PRODUCTION RESULTS

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Published: Oct 1, 2017
Keywords:
Table grape, production tehnology, yield, dinamics of rippening, organoleptic evaluation

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Zlatko Prculovski
Ss. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food - Skopje, Republic of Macedonia
Zvonimir Bozinovic
Ss. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food - Skopje, Republic of Macedonia
Krum Boskov
Ss. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food - Skopje, Republic of Macedonia
Biljana Korunovska
Ss. Cyril and Methodius University in Skopje, Institute of Agriculture, Skopje, Republic of Macedonia
Hristina Poposka
Ss. Cyril and Methodius University in Skopje, Institute of Agriculture, Skopje, Republic of Macedonia
Sami Krieziu
Ss. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food - Skopje, Republic of Macedonia

Abstract

The Cardinal variety is a leading very early ripening table grape variety in the Republic of Macedonia. The grape quality largely depends on the applied production technology. The aim of our research is to determine the impact of the number of retained clusters per m2 on the production results of the Cardinal variety, grown on pergola tendon trellis (odrina) system in the Gevgelija - Valandovo wine region. The load of 3, 4, and 5 clusters/m2 respectively was noted. Based on the results, we found a significant impact of the number of clusters on the yield, dynamics of ripening, and quality of grapes. By increasing the number of clusters, the weight of the cluster decreased from 489 g in the 3 clusters/m2 variant to 446 g in the 5 clusters/m2 variant. The weight of the berry ranged from 7,6 g in the 5 clusters/m2 variant to 8,4 g in the 3 clusters/m2 variant. Total weight of packaged grapes ranged from 1,4 kg/m2 for the 3 clusters/m2 variant to 1,9 kg/m2 for the 5 clusters/m2 variant. There was a significant difference in the dynamics of ripening, i.e., the quantity of packaged grapes in the first harvest. The highest weight of 1,55 kg/m2 of packaged grape in the first harvest was obtained from the variant with 4 clusters/m2, and the lowest of 1,29 kg/m2 from the 3 clusters/m2 variant. The
best quality of 9.6 points was observed in the variant with 3 clusters/m2 and the lowest of 7.9 points in the grapes of the variant with 5 clusters/m2. From these results, it can be concluded that the best results for the Cardinal variety are obtained by leaving 4 clusters per m2. 

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Article Details

Issue
Vol 71 No 1 (2017): Journal of Agricultural, Food and Environmental Sciences, JAFES
Section
Articles

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