The study of the water regulation mechanisms in the winter bread wheat varieties under an acute drought
https://doi.org/10.31367/2079-8725-2021-76-4-3-7
Abstract
Water regime of plants, characteristic of a certain variety, largely determines the resistance of plants to drought. Drought affects, first of all, such indicators as water absorption capacity, water retention capacity, water deficit and changes in total water content in the process of ontogenesis. Studying and taking into account a number of parameters of water regime can significantly increase the reliability of the assessment of plants for drought resistance. The purpose of the current study was to investigate the water regime of the winter bread wheat varieties under an acute drought and to select promising samples for breeding for drought resistance. The objects for the study were 7 winter bread wheat varieties developed by the FSBSI “Agricultural Research Center “Donskoy”. The study was carried out on the experimental plot (zasushnik) of the laboratory for plant physiology under an acute drought of 30% PV in 2017–2019. According to the study results, there have been identified the varieties ‘Zhavoronok’, ‘Volnitsa’ and ‘Volny Don’, which were characterized by the largest increase in water-absorbing capacity (from 40.0 to 41.1%); by a minimum increase in water deficit (1.3–2.1%); by the smallest decrease (3.2–3.8%) in the total water content in fibers due to adaptability to water stress conditions in spite of increasing drought. There has been recommended to introduce these samples into the breeding process aimed at developing drought-resistant winter bread wheat varieties.
About the Authors
V. А. Golubova
Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
Candidate of Biological Sciences, researcher of the laboratory for plant physiology
347740, Rostov region, Zernograd, Nauchny Gorodok
V. L. Gaze
Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
junior researcher of the laboratory for plant physiology
347740, Rostov region, Zernograd, Nauchny Gorodok
References
1. Lihovidova V.A., Ionova E.V. Vliyanie zasushlivyh uslovij vyrashchivaniya na vodnyj deficit i soderzhanie hlorofilla sortov ozimoj tverdoj pshenicy, razlichayushchihsya po produktivnosti [The effect of dry growing conditions on water deficit and chlorophyll content of winter durum wheat varieties differing in productivity] // Agrarnaya nauka. 2020. 5. S. 72–75. https://doi.org/10.32634/0869-8155-2020-338-5- 72-75.
2. Marchenkov L.A., Davydova N.V., CHavdar' R.F. Ocenka adaptivnosti sortov i linij yarovoj pshenicy na fone iskusstvenno modeliruemyh stressov [Estimation of the adaptability of spring wheat varieties and lines against the background of artificially simulated stresses] // Vestnik Altajskogo gosudarstvennogo agrarnogo universiteta. 5(151). 2017. S. 9–15.
3. Nekrasova O.A., Kravchenko N.S., Ignat'eva N.G., Marchenko, D.M., Ivanisov, M.M. Kachestvo zerna sortov ozimoj myagkoj pshenicy v zavisimosti ot predshestvennika [Grain quality of winter bread wheat varieties depending on the forecrop] // Zernovoe hozyajstvo Rossii. 2020. № 4(70). S. 31–35. DOI: 10.31367/2079-8725-2020-70-4-31-35.
4. Osipova S.V., Rudikovskij A.V., Permyakov A.V., Rudikovskaya E.G., Permyakova M.D., Verhoturov V.V., Pshenichnikova T.A. Fiziologicheskie reakcii linij pshenicy (Triticum aestivum L.) s geneticheski razlichnym opusheniem lista na vodnyj deficit [Physiological reactions of wheat lines (Triticum aestivum L.) with genetically different leaf pubescence to water deficit] // Vavilovskij zhurnal genetiki i selekcii. 2020. 24(8). S. 813–820. DOI 10.18699/VJ20.678.
5. Udovenko G.V. Diagnostika ustojchivosti rastenij k stressovym vozdejstviyam (metodicheskoe rukovodstvo) [Diagnostics of plant resistance to stress (methodological recommendations)]. Vsesoyuznyj NII rastenievodstva im. N.I. Vavilova (VIR), 1988. 228 s.
6. SHamanin V.P. Trushchenko A.YU., Pinkal' A.V. Problema zasuhoustojchivosti yarovoj myagkoj pshenicy v Zapadnoj Sibiri i sovremennye ekspress-metody eyo ocenki v polevyh usloviyah [The problem of drought resistance of spring bread wheat in Western Siberia and modern express methods for its estimation in the field] // Vestnik NGAU. 3(40) 2016. S. 57–64.
7. Budak H., Kantar M., Yucebilgili Kurtoglu, K. Drought tolerance in modern and wild wheat. Sci. World J., V. 2013. Article number 548246.
8. Mir R.R., Zaman-Allah M., Sreenivasulu N., Trethowan R., Varshney R.K. Integrated genomics, physiology and breeding approaches for improving drought tolerance in crops. Theor. Appl. Genet., V. 125. 2012 r. 625–645. 9. Shinozaki K., Yamaguchi-Shinozaki K. Gene networks involved in drought stress response and tolerance. J. Expt. Bot, 58, 2007 r. 221–227. DOI: 10.1093/jxb/erl164
Review
For citations:
Golubova V.А., Gaze V.L. The study of the water regulation mechanisms in the winter bread wheat varieties under an acute drought. Grain Economy of Russia. 2021;(4):3-7. (In Russ.) https://doi.org/10.31367/2079-8725-2021-76-4-3-7
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