Ecological and biological indicators of representatives of the genus Philadelphus L.
DOI: 10.35205/0558-1125-2024-80-173-180
UDC 635.925:57.045:615.322
ECOLOGICAL AND BIOLOGICAL INDICATORS OF REPRESENTATIVES OF THE GENUS PHILADELPHUS L.
О.I. RUDNYK-IVASHCHENKO, Doctor, Рrofessor, Corresponding Member of NAAS of Ukraine
L.O. SHEVEL, V.I. DUBROVSKYI, PhDs
Institute of Horticulture, NAAS of Ukraine, 03027, Kyiv-27, 23, str. Sadova,
е-mail: rudnik2015@ukr.net
Brief information on the economically valuable properties of representatives of the genus Philadelphus L. is provided. A brief description of the morphological characteristics of these plants is given. The value of jasmine shrubs in garden and park plantings is described. According to the results of three-year field studies, it was established that in the conditions of the Kyiv region, jasmine plants are almost not damaged by low temperatures in the winter period, are not damaged by pests and are not affected by diseases. It was studied that the level of freezing of plants of all forms of jasmine that were in the experiment is closely correlated with foliage, flowering and the level of decorativeness in the process of growth and development. Since, in the experiments, jasmine plants were not damaged by low temperatures, their development during the vegetation period ensured a high degree of both the formation of leaf cover and abundant flowering. Although some forms had different degrees of freezing, it was not critical, which provided their plants with a high assessment of attractiveness in the conditions of the Kyiv region. According to the results of the assessment of ecological and biological indicators of representatives of the genus Philadelphus L. gene pool of the Institute of Horticulture, promising forms were identified, which over the years of research have shown high resistance to adverse abiotic and biotic environmental factors, and are also characterized by excellent decorative characteristics. These include the forms: F-14-21; F-3-21; F-6-21; F-10-21. These forms can be confidently recommended for modern green construction in the conditions of the Lisosteppe, in particular in the city of Kyiv and the Kyiv region, since their plants are distinguished by high winter hardiness, growth rate, decorative qualities (expressive crown shape, full or simple flowers with an interesting corolla structure, aroma). The forms: 4-21 and 12-21 (3.0 points) on a 4-point scale were characterized by the least decorativeness.
Key words: forms, gene pool, decorativeness, frost resistance, foliage, flowering, fruiting.
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