Adaptability of grades and hybrids of tangerine in a subtropical zone of Russia
Keywords:tangerine, grades, hybrids, water deficit, leaf thickness, turgor, catalase, resistance, fruit
Results of researches of various cultivars and hybrids of tangerine growing in the conditions of the humid subtropics of Russia and possessing valuable physiological and biochemical markers are presented in article. The stress factors limiting cultivation of tangerine culture in Krasnodar region are defined. The assessment of the water saving and enzymes activity in tangerine leaves is given. Changes of physiological parameters at influence of a stressful factor are shown. The analysis of water deficiency is revealed existence of essential distinctions between cultivars and hybrids. Change of thickness of a leaf blade of tangerine is the important diagnostic characteristic testifying the ability of leaf tissues to accumulate and keep water. Researches are showing that difference between catalase action of cultivars and hybrids are insignificant. Strengthening of enzyme activity can testify to bigger violation of a functional state of plant cultivars in comparison with the hybrides. Water deficiency and drought resistance coefficient can be used for diagnostics of stability of tangerine to hydrothermal factors. Correlation coefficients between the studied markers were calculated and regression models of their interrelation were given. So, there was a high correlation between thickness of a leaf blade and water deficiency index; close correlation between water deficiency and thickness of a leaf blade, as well as dependence of average degree on water deficiency and catalase activity were noted. There were revealed tangerine cultivars and hybrids which are stable in in the changing environmental conditions and have high biochemical value of fruits.
Abilfazova, YU. S., 2002. Action of microelements on growth and generative processes, the water regime, enzymatic activity//Mat. IV international conf. "An introduction of nonconventional and rare agricultural plants" - Ulyanovsk. Page 127-129.
Belous, O. G. 2009. Biological features of tea culture in the conditions of humid subtropics of Russia: doctoral thesis: 06.01.07. Krasnodar. 42 p.
Goncharova, E. A. 2007. Morphostructure and functional systems of attraction of plants in different ecological environments. Material international conf. "Modern physiology of plants: from molecules to ecosystems". Syktyvkar. p. 229-231.
Gunar, I. I. 1972. Workshop on physiology of plants. Moscow: Colos. 168 p.
Kushnirenko, M. D., Kurchatov, G. I, Shtefyrtse, A. A., Pecherskaya, S. N., Bashtovaya, S. I., Kryukov, E. V. 1986. Express method of diagnostics of heat tolerance and terms of watering of plants. Kishinev: Shtiintsa. 38 p.
Pochinok, H. N. Methods of the biochemical analysis of plants, H. N. Pochinok. - Kiev: Naukova dumka, 1976. 336 p.
Radchenko, S. G. 2005. Steady methods of estimation of statistical models: Monograph. - Kiev: "Sansparel". 504 p.
Reutsky, V. G., Rodionov, P. A. 1992. An assessment of water exchange of plants on dynamics of thickness of a leaf blade. All-Russian society of physiologists of plants. Minsk. 178 p.
Romanova, E. V., 2008. Enzymes in anti-oxidizing system of plants: superoxide dismutase. Agro XXI., no. 7-9, p. 27-30.
Technique of an assay of cultures grades. 1985. Under the editorship of M. A. Fedin. Moscow, 269 p.
Udovenko, G. V. 1973. Nature of protective and adaptive reactions and reason of different resistance of plants to extreme influences/G. V. Udovenko. - Works on applied botany, genetics and selection. vol. 49, no. 3, p. 258-267.
Udovenko, G. V., 1995. Resistance of plants to abiotic stresses. Theoretical bases of selection of plants, G. V. Udovenko. - T. 2, part 1 and 2. Physiological bases of selection of plants. St.-Pb., p. 293-346.
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