Estimation results of strawberry productivity and fruit quality under the conditions of the Kuban zone of Krasnodar territory

Abstract

On industrial plantations of strawberries, a significant number of new varieties appeared, whose biological potential is still poorly studied. The identification of strawberry varieties with high levels by productivity and fruit quality features is the purpose of this work. In 2016-2018 27 varieties were estimated by productivity, average weight of fruit, firmness of fruit and total sugars in fruits. Ward’s method cluster analysis was used to identify the best varieties by the complex of studied features. In the results of the research, the studied varieties were divided into 4 groups according to the size of the crop and quality features. The Honney, Belrubi and Jeni varieties have a harvest of less than 600 per plant, which is lower than the requirements of modern production. The Clery and Alina varieties are nigh to the required parameter of productivity (≥600 g per plant). The highest productivity observed for the adapted variety Bogota. For the remaining 22 studied varieties the productivity corresponds to the required parameter. The best combination of the average weight of fruit and firmness of fruit observed for Alba, Nelly, Florence, Roxana, Wima Tarda varieties. The highest average weight of fruit on total harvest observed in the Gallia variety - 19, 2 g. The firmness of fruit as above 380 g observed in the Alba, Nelly, Clery, Syria, Alina varieties. High sugar content was noted in Clery, Honeoye, Onda, Queen Elizabeth II, Vima Zanta. For commercial cultivation in the Krasnodar Territory, the Vima Tarda, Onda, Vima Xima, Florence, Tarda Vikoda, Gallia, Asia, Kemiya, Nelli varieties are recommended. The last two are new varieties. They were breeding in the North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making.