Year 2017, Volume 2, Issue 1
| Year : | 2017 |
| Volume : | 2 |
| Issue : | 1 |
| Authors : | Iuliia IVASHCHENKO, Yuriy IVASHCHENKO, Evgeny SHOFERISTOV, Sergei TSIUPKA |
| Title : | COMPARATIVE CHARACTERISTICS OF PHOTOSYNTHETIC ACTIVITY OF NECTARINE CULTIVARS AND FORMS WITH DIFFERENT COLORED LEAF PLATE |
| Abstract : | Genotypes of nectarine with red leaves were created in Nikita botanical gardens. They have commercially valuable properties and biological characteristics (resi-stance to powdery mildew, large-fruited, the ability of transmitting the trait of red leaves with constant result to progeny seed, etc.). The aim of our researches was to study the main indicators of photoactivity of leaf apparatus of nectarine with green and anthocyanin leaves coloration. Investigations have been carried out in 2010-2015 on intact leaf plates for three cultivars and forms of nectarine with green leaves – Rubinoviy-8 (control), Chemus, Krymtsuht 53-85 and 2 forms with anthocyanin coloration of leaf plate (NektadianaKrasnolistnaya 996-88, Krasnola 495-86). Photosynthetic activity was characterized by chlorophyll fluorescence parameters (Kautsky effect). The content of chlorophyll a and b were determined by spectrophotometry. The cultivar Rubinoviy-8 and the form - Krasnola 495-86 were selected according to intensity indicators of the primary reactions of photosynthesis. Anthocyanin forms concede cultivar Rubinoviy-8 in efficiency of the primary reactions of photosynthesis an average of 48-50%; but they exceed nectarines Chemus and Krymtsuht 53-85 with green color of leaves of 23-25%. The efficiency of energy supply in the "dark" reactions of photosynthesis in all varieties and forms of nectarine maintained within 41-46%. But the further ability to utilize received energy is most efficiently implemented at the nectarine cultivar Rubinoviy-8 and form Krasnola 495-86. The forms of red-leaved nectarine in comparison with traditional cultivars are distinguished by a great potential for retaining the stability and productivity of the functioning of the photosynthetic apparatus. |
| For citation : | Ivashchenko, I., Ivashchenko, Y., Shoferistov, E., Tsiupka, S. (2017). Comparative characteristics of photosynthetic activity of nectarine cultivars and forms with different colored leaf plate. AGROFOR International Journal, Volume 2. Issue No. 1. pp. 28-34. DOI: 10.7251/AGRENG1701028I |
| Keywords : | Nectarine, leaves, photoactivity, fluorimetric indicator, chlorophyll |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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