Peculiarities of the classification of economically valuable indicators of highbush blueberry varieties of Vaccinium corymbosum L.

С І Мельник,В М Матус,Н С Орленко,В А Павлюк,Н В Павлюк,Н В Лещук

doi:10.21498/2518-1017.16.3.2020.214920

Abstract

Purpose. To substantiate the features of the classification of morphobiological and economically valuable indicators of highbush blueberry varieties of Vaccinium corymbosum L.Methods. The studies were carried out during 2012–2019. Research methods: field (visual examination of the manifestation of morphological signs of vegetative and generative organs of blueberry plants), laboratory (determination of the content of vitamin C, total sugar, pectin, carotenes, anthocyanins, flavonoids, total acidity in berries), analytical, comparative, statistical (cluster analysis).Results. Over the years of research, varieties of highbush blueberries were characterized by a stable manifestation of homogeneous morphological traits and economically valuable performance indicators. In particular, the studied varieties are classified according to ripeness groups: very early: ‘Fiolent’; early: ‘Draper’, ‘Huron’, ‘Clockwork’, ‘Cargo’, ‘Laska’; medium: ‘Blue Ribbon’, ‘Top shelf’, ‘ZF08-070’, ‘Mavka’; late: ‘Liberti’, ‘Last Call’ and very late: ‘Aurora’, ‘Overtime’. It was determined that the quantitative morphological traits of highbush blueberry varieties that influenced the formation of plant productivity include such traits as growth vigor, leaf length, leaf width, inflorescences lengthwise, bunch density, fruit size. Economically valuable indicators of suitability of highbush blueberry varieties remained stable within the ripeness group. The highest yield (19.5 t/ha) was provided by the mid-season variety ‘Mavka’ of domestic selection. The yield of berries from the bush of this variety was also high and amounted to 7 kg. The studied performance indicators were low in the variety ‘Blue Ribbon’ – 10.2 t/ha and 2.4 kg, respectively. The minimum and maximum values of the manifestation of characteristics will serve to establish the limiting boundaries of its variation in the next modeling of economically valuable indicators of highbush blueberry varieties.Conclusions. Such morphobiological characteristics of highbush blueberry varieties, as plant growth vigor, leaf length, leaf width, inflorescences lengthwise, bunch density, fruit size are closely related to plant productivity, berry yield per bush, berry weight and yield. Therefore, they can be involved in the development and improvement of the model of suitability indicators of highbush blueberries for distribution in Ukraine.

Highlights

Domestic gardeners face new challenges to meet the demand for valuable, environmen-Serhii Melnyk https://orcid.org/0000-0002-5514-5819 Nataliia Orlenko https://orcid.org/0000-0003-0494-2065 Nadiya Leschuk https://orcid.org/0000-0001-625-3702 Valentyna Matus https://orcid.org/0000-0002-2267-4757 Viktor Pavliuk https://orcid.org/0000-0001-8510-5116 Nataliia Pavliuk https://orcid.org/0000-0003-2532-7301 tally friendly food products with a high content of vitamins, macro, microelements and other vital substances [1, 2]
The material for the research was the seedlings, bushes of highbush blueberry varieties at the collection field sites of the Ukrainian Institute for Plant Variety Examination and the results of descriptions of the morphological characteristics of the varieties included in the UIPVE databases (Table 1)
Over the years of research, highbush blueberry varieties provided a stable manifestation of homogeneous morphological characteristics and economically valuable indicators of plant productivity

Summary

Introduction

Domestic gardeners face new challenges to meet the demand for valuable, environmen-Serhii Melnyk https://orcid.org/0000-0002-5514-5819 Nataliia Orlenko https://orcid.org/0000-0003-0494-2065 Nadiya Leschuk https://orcid.org/0000-0001-625-3702 Valentyna Matus https://orcid.org/0000-0002-2267-4757 Viktor Pavliuk https://orcid.org/0000-0001-8510-5116 Nataliia Pavliuk https://orcid.org/0000-0003-2532-7301 tally friendly food products with a high content of vitamins, macro-, microelements and other vital substances [1, 2]. It is not enough to obtain high stable yields of berries through the introduction of scientific achievements and advanced experience, but it is important to expand the range of offered products [3]. A significant factor in increasing the production of fruit and berries products is an increase in the level of its yield due to intensification, improvement of growing technology and the introduction of new highly productive varieties for various agroclimatic growing zones. Among the factors of the formation of a high level productivity of fruit and berry crops, the ecological plasticity of plant varieties should be noted. The introduction of new varieties of berry crops enables to obtain a high yield and high quality of berries – with better taste, more attractive appearance, long keeping quality and better transportability [5]

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Conclusion