April 2017, № 5 (205)

Khardikova S.V., Verkhoshentseva Y.P., Pokhlebina D.S. PECULIARITIES OF WATER METABOLISM OF ORNAMENTAL SPECIES OF THE GENUS MALUS MILL. IN THE ENVIRONMENTAL CONDITIONS OF THE ORENBURG REGIONIn the steppe zone of the Orenburg region, Apple is one of the first places the plant is fully adapted to local conditions. But, despite this, the growth and development of its in the region yet, limited hydrothermal environmental factor. Therefore, peculiarities of water regime and drought tolerance of ornamental plants, including Apple trees, are important indicators for their use in gardening settlements. The object of this study was 5 ornamental species of the genus Malus Mill.: Siebold Apple tree (Malus sieboldii (Regel) Rehder.); Pratt Apple tree (Malus prattii (Hemsl.) Schneid.); the Apple tree brown, riverside (Malus fusca (Raf.) Schneid.); Apple berry, Siberian (Malus baccata (L.) Borkh.); loringhoven Apple tree (Malus toringoides (Rehd.) Hughes). Study of water regime and drought tolerance of ornamental species of the genus Malus Mill. conducted by artificial wilting in 3-fold repetition on 10 leaves in each iteration. Drought resistance of crops were determined in the driest and hottest period, the average daily temperature during the experiment amounted to +24...+25 °C, relative humidity — 56 %. The leaves were collected in morning hours. In determining the water regime of leaves was calculated, the water content or water cut on the raw mass. All other parameters: water deficit, relative turgor, water-holding capacity was expressed by wet weight of a leaf in full prior to saturation. The water retention capacity of leaves was determined by limiting the loss of water at the time (in hours) of the completion of the process of wilting. The results of all studies were expressed by calculating the average value of each characteristic. The results of these studies showed that the most stable water regime and high index of drought resistance are two ornamental Apple trees — Apple berry and Apple Siebold. It is therefore recommended to use these species in the landscaping of the settlements in the climatic conditions of the Orenburg region, as the most resistant species to water stress and temperature of the study area.Key words: decorative species, the genus Malus Mill. water regime, drought tolerance, environmental conditions, the steppe zone of Orenburg region.

Download

References:

1. Mursalimova G.R. Zasuhoustojchivost' vegetativno razmnozhaemyh podvoev yabloni v usloviyah YUzhnogo Urala / G.R. Mursalimova, S.V. Hardikova // Vestnik Orenburgskogo gosudarstvennogo universiteta №6 — Orenburg, 2012. — S. 63-65.

2. CHibilyov A.A. Sadovodstvo na YUzhnom Urale / A.A. CHibilyov, E.Z. Savin i dr. — Orenburg: Orenburgskoe knizhnoe izdatel'stvo, 2004. — 488 s.

3. Agroklimaticheskie resursy Orenburgskoj oblasti. — L.: Gidrometeoizdat, 1971. — 120 s.

4. CHibilyov, A.A. Priroda Orenburgskoj oblasti (CHast' 1. Fiziko-geograficheskij i istoriko-geograficheskij ocherk) / A.A. CHibilev. — Orenburg: Orenburgskij filial Russkogo geograficheskogo obshchestva, 1995. — 128 s.

5. Kushnirenko, M.D. Vodnyj rezhim yabloni / M.D. Kushnirenko, G.P. Kurchatova, E.M. Bondar', EH.A. Goncharova. — Kishinev, 1970. — 174 s.

6. Blumm, A. An evaluation of seed and seedling drought tolerance screening test in wheat/ A. Blumm, B. Sinmena, O. Ziv// Euphytica. — 1980. — V. 29, №3. — 727 p.

7. Kramer P.J. Water relations in plants / J.P. Kramer — New York, 1983. — 500 p.

8. Eremeev, G.N. Metody ocenki zasuhoustojchivosti plodovyh kul'tur / G.N. Eremeev // Metody ocenki ustojchivosti rastenij k neblagopriyatnym usloviyam sredy. — L.: Kolos, 1976. — S. 101-115.

9. Genkel', P.A. Fiziologiya zharo-, zasuhoustojchivosti rastenij / P.A. Genkel'. — M.: 1982. — 280 s.

10. Avdeev V.I. Sravnitel'nyj analiz zasuhoustojchivosti vidov drevesnyh plodovyh rastenij / A.V. Avdeev // Vestnik OGPU. Ser. Estestv. nauki. — Orenburg, 2005. — №3. — S. 64–74.

11. Kushnerenko, M.D. Metody izucheniya vodnogo obmena i zasuhoustojchivosti rastenij / M.D Kushnerenko, EH.A. Goncharova, E.M. Bondar' — Kishinev, 1970. — 79 s.

12. Kushnirenko, M.D. Fiziologiya vodoobmena i zasuhoustojchivosti rastenij / M.D. Kushnirenko. — Kishinev: SHtiinca, 1991. — 306 s.

13. Slejcher, R. Vodnyj rezhim rastenij / R. Slejcher. — M., 1970. — 265 s.

14. Pohlebina D.S. Vodnyj rezhim i zasuhoustojchivost' dekorativnyh kul'tur roda Malus v usloviyah Orenburzh'ya / D.S. Pohlebina, A.P. Romanova, V.V. Umrihina, M.A. Novak // Molodoj uchenyj: vyzovy i perspektivy. sb. st. po materialam XIX mezhdunar. zaochnoj nauch.-prakt. konf. — №17(19). — M., Idz. “Internauka”, 2016. — S. 90–95.

About this article

Authors: Hardikova S.V., Pohlebina D.S., Verhoshentseva Yu.P.

Year: 2017

Editor-in-chief

Sergey Aleksandrovich
MIROSHNIKOV

© Электронное периодическое издание: ВЕСТНИК ОГУ on-line (VESTNIK OSU on-line), ISSN on-line 1814-6465
Зарегистрировано в Федеральной службе по надзору в сфере связи, информационных технологий и массовых коммуникаций
Свидетельство о регистрации СМИ: Эл № ФС77-37678 от 29 сентября 2009 г.
Учредитель: Оренбургский государственный университет (ОГУ)
Главный редактор: С.А. Мирошников
Адрес редакции: 460018, г. Оренбург, проспект Победы, д. 13, к. 2335
Тел./факс: (3532)37-27-78 E-mail: vestnik@mail.osu.ru