COMPARATIVE ASSESSMENT OF THE QUANTITATIVE CONTENT OF THE MAIN PHOTOSYNTHETIC PIGMENTS IN THE LEAVES OF THE ENGLISH OAK OF THE FIELD–PROTECTIVE FOREST STRIPS
Abstract
The article presents experimental results of a comparative assessment of the pigment complex of the leaves of the English oak growing in the protective forest strips of the Stone Steppe. It is shown that the maximum level of chlorophyll a content is characteristic of the leaves of oak trees of protective forest strip No. 131 and is equal to 3.02±0.09 mg/g a.d.m. In oak leaves of forest strip No. 226, the content of this pigment is 9.6% lower. It was found that there are no statistically significant differences in the average content of chlorophyll b in the leaves of oak trees of the studied forest strips. It is shown that the content of photosynthetic pigments is an environmentally dependent indicator reflecting the vital state of plants, the nature of the ongoing physiological processes, as well as the direction of adaptive reactions when exposed to stress factors.
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References
Dymova O.V. Fotosinteticheskie pigmenty v rasteniyah prirodnoj flory taezhnoj zony Evropejskogo Severo–Vostoka Rossii [Photosynthetic pigments in plants of the natural flora of the taiga zone of the European North–East of Russia]/ O.V. Dymova, T.K. Golovko // Fiziologiya rastenij [Plant Physiology]. –– 2019. –– Vol.66. №3. –– P.198–206. [in Russian]
Petrov K.A. Sezonnye izmeneniya soderzhaniya fotosinteticheskih pigmentov u mnogoletnih travyanistyh rastenij kriolitozony [Seasonal changes in the content of photosynthetic pigments in perennial herbaceous plants in the cryolithozone] / K.A. Petrov, V.E. Sofronova, V.A. Chepalov et al. // Fiziologiya rastenij [Plant Physiology]. –– 2010. –– Vol.57. №2. –– P. 192–199. [in Russian]
Golovko T.K. Pigmentnyj kompleks rastenij prirodnoj flory Evropejskogo Severo–Vostoka [Pigment complex of plants of the natural flora of the European North–East] / T.K. Golovko, I.V. Dal'ke, O.V. Dymova et al. // Izvestiya Komi nauchnogo centra UrO RAN [Proceedings of the Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences]. –– 2010. –– № 1(1). –– P. 39–46. [in Russian]
Ivanov L. A. Izmenenie listovyh parametrov kak pokazatel' smeny funkcional'nyh tipov stepnyh rastenij vdol' gradienta aridnosti [Change in leaf parameters as an indicator of the change in functional types of steppe plants along the aridity gradient] / L.A. Ivanov, D.A. Ronzhina, L.A. Ivanova // Fiziologiya rastenij [Plant Physiology]. – 2008. – Vol. 55, № 3. – P. 332–339. [in Russian]
Voronin P.Yu. Proektivnoe soderzhanie hlorofilla i bioraznoobrazie rastitel'nosti osnovnyh botaniko–geograficheskih zon Rossii [Projective content of chlorophyll and biodiversity of vegetation of the main botanical and geographical zones of Russia] / P.Yu. Voronin, E.I. Efimcev, A.A. Vasil'ev et al. // Fiziologiya rastenij [Plant Physiology]. –– 1995. –– Vol. 42. –– P. 295−302. [in Russian]
Losickij K.B. Vosstanovlenie dubrav [Restoration of oak forests] / K.B. Losickij. –– M.: Sel'hozizdat [M.: Selhozizdat], 1963. –– 359 p. [in Russian]
Harchenko N.A. K voprosu o estestvennom vozobnovlenii duba chereshchatogo pod pologom materinskogo drevostoya [To the question of the natural renewal of the English oak under the canopy of the parent stand] [Elektronnyj resurs] / N.A. Harchenko, N.N. Harchenko // Nauchnyj zhurnal KubGAU [Scientific journal of KubSAU]. –– 2012. –– № 76(02). –– URL: http://ej.kubagro.ru/2012/02/pdf/30.pdf (accessed: 03.03.2022) [in Russian]
Weather in Stone Steppe. air temperature and precipitation. April 2021 [Electronic resource] http://www.pogodaiklimat.ru/monitor.php?id=34139&month=4&year=2021 (accessed: 03.03.2022) [in Russian]