DYNAMICS OF THE CONTENT OF CHLOROPHYLLS IN THE LEAVES OF THE ENGLISH OAK (QUERCUS ROBUR L.) OF THE FOREST-STEPPE ZONE

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Marina Sautkina

Abstract

The article presents experimental data on the dynamics of the accumulation of photosynthetic pigments in the leaves of model trees of the English oak, which grows in the field-protective forest belts of the forest-steppe zone. It is shown that in 2020, the content of chlorophylls a and b in the leaves of model trees is minimal compared to the previous three years of research. It was revealed that the sum of the main photosynthetic pigments in the leaves of the oak trees of the control group growing on the plakor is 17.1% higher than the sum of the pigments of the trees of the experimental group growing on the slope, and is 4.735±0.188 mg / g a. d. m. It is proved that the content of chlorophylls a and b is an environmentally dependent feature that reflects the general vital state of plants, as well as changes that occur during growth, development and stress loads.

Article Details

Section
Forestry

References

Lindroth R. Impacts of elevated atmospheric CO2 and O3 on forests: phyto-chemistry, trophic interactions and ecosystem dynamics / R. Lindroth // J. Chem. Ecol. – 2010. – Vol.36. – P.2-21.

Izrael' Yu.A. Izmeneniya global'nogo klimata. Rol' antropogennyh voz-dejstvij [Global climate change. The role of anthropogenic impacts] / Yu.A. Izrael', G.V. Gruza, V.M. Katcov, V.P. Meleshko // Meteorologiya i gidrologiya [Meteorology and hydrology]. – 2001. – No.5. – p.5-21. [in Russian].

Tarchevskij I.A. Osnovy fotosinteza: ucheb.posobie dlya bio-log.special'nostej vuzov [Fundamentals of photosynthesis: textbook.a manual for the biologist.university specialties]/ I.A. Tarchevskij. – M.: «Vysshaya shkola» [M.: «Vysshaya shkola»], 1977. – 254 p. [in Russian].

Praktikum po fiziologii rastenij [Workshop on plant physiology] / otv.red. N.N. Tret'yakov. – M.:Kolos [M.:Kolos], 1982. – 271 p. [in Russian].

Sautkina M.Yu. Osobennosti soderzhaniya fotosinteticheskih pig-mentov duba chereshchatogo lesnyh polos Kamennoj Stepi [Features of the content of photosynthetic pigments of English oak forest belts of the Stone Steppe] / M.Yu. Sautkina // Vestnik MichGAU [Bulletin of the MichGAU]. – 2020. – No.1(60). – p. 73-75. [in Russian].

Medvedev S.S. Fiziologiya rastenij: uchebnik [Plant physiology: textbook] / S.S. Medvedev.– SPb.: BHV-Peterburg [SPb.: BHV-Peterburg], 2012. – 512 p. [in Russian].

Harchenko N.A. K voprosu o estestvennom vozobnovlenii duba chereshchatogo pod pologom materinskogo drevostoya [On the question of the natural renewal of the English oak under the canopy of the mother tree stand] / N.A. Harchenko, N.N. Harchenko // Nauch. zhurn. KubGAU [Scientific journal of kubgau]. – 2012. – No.76(02). – p. 1–13. [in Russian].

Losickij K.B. Vosstanovlenie dubrav [Restoration of oak forests] / K.B. Losickij. – M.: Sel'hozizdat [M.: Selhozizdat], 1963. – 359 p. [in Russian].