Contentof chlorophylls in the leaves of plants of the genus of Canna L. in conditions of Kryvyi Rih



DOI: http://dx.doi.org/10.31548/biologiya2020.03.004

М Mazura

Анотація


Abstract. The content and dynamics of chlorophylls a and b of the photosynthetic organ (leaf) of representatives of the genus Canna L. were studied at different phases of plant growth and development: at the beginning of the growing season, in the generative phase, at the end of the growing season under conditions of Kryvyi Rih. A high content of chlorophylls in the leaves of most of the studied canna varieties was noted, compared with the species (with the exception of C. indica). A common trend for canna plants was an increase in the total number of chlorophylls in generative phase. Varieties of canna Capter, Vesolyye notki, Richard Wallis, which have litle leaf parameters, were characterized by a low total content of photopigments during the growing season and chlorophyll b in the generative phase, which indicates a significant sensitivity of plants to arid conditions in the region. Plants of the Fauervogel, Rosenkranzen and Krymskiye Zori varieties (with large leaf blades) were characterized by a high concentration of green pigments during the growing season, and chlorophyll b in the generative phase, this feature in the functioning of the photosynthetic apparatus is consistent with a high assessment of the level of adaptation of these plants in drought conditions. Therefore, indicators of the state of the assimilation apparatus of plants of the genus Canna L. can be used to determine their level of fitness for moisture deficiency during introduction studies.

Ключові слова


Keywords: assimilation apparatus, species and varieties of the genus Canna L., leaf, photographic pigments, Kryvyi Rih, arid conditions.

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