Cite this article as:

Shevlyagina О. F., Korobko V. V. Some Features of Implementation of Source-Sink Relations in Violation of the Integrity of the Root System of Seedlings of Triticum aestivum L.. Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2020, vol. 20, iss. 2, pp. 219-225. DOI:

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).

Some Features of Implementation of Source-Sink Relations in Violation of the Integrity of the Root System of Seedlings of Triticum aestivum L.


The object of the study was sprouts of spring soft wheat Triticum aestivum L. Cultivation was carried out in a climatic chamber at a temperature of 18 ± 1°C under the conditions of a sixteen-hour photoperiod and complete etiolation. The experiment was carried out in the following options: removed the main germinal root; decapitation; removed the lower tier of germinal roots. Removing part of the root system of plants cultivated under a sixteen-hour photoperiod increases the root index and reduces the total length of the root system. With the removal of the main root and the roots of the lower tier, the root availability index of plants grown during the sixteen-hour photoperiod does not change significantly, while decapitation leads to a decrease in the root availability index. Violation of the integrity of the root system of etiolated seedlings leads to a decrease in the mass of the seedling and the root support index in plants lacking a lower pair of roots; increase root supply of the seedling when removing the main root. Removing the tip of the main root contributes to an increase in the root index without having a statistically significant effect on the length of the root system, the mass of seedlings and roots, and the mass ratio of root / shoot.


1. Gamaley Yu. V. Photosynthesis and export of photosynthetics. The development of the transport system and donor-acceptor relations. Plant Physiology, 1998, vol. 45, iss. 4, pp. 614–631 (in Russian).
2. Evdokimova O. A., Zakharchenko H. A., Kumakov V. A. The sequence and conjugation of the growth of the vegetative organs of the shoot of Triticum aestivum and Triticum durum (Poaceae). Botanical Journal, 2000, vol. 85, iss. 3, pp. 59–64 (in Russian).
3. Carmi A., Hesketh J. D., Enos W. T., Peters D. B. Interrelationships between shoot growth and photosynthesis, as affected by root growth restriction. Photosynthetica, 1983, vol. 17, pp. 240–245.
4. Kharkina T. G., Ottosen C.-O., Rosenqvist E. Effects of root restriction on the growth and physiology of cucumber plants. Physiol. Plantarum, 1999, iss. 105, pp. 434–441.
5. Shevlyagina O. F., Korobko V. V. Nekotoryye osobennosti rosta Triticum aestivum L. v aspekte realizatsii donorno-aktseptornykh otnosheniy [Some features of the growth of Triticum aestivum L. in the aspect of the implementation of donor-acceptor relations]. In: Zhivyye sistemy – 2019: sb. nauch. st. [Living Systems – 2019: collection of scientifi c articles]. Saratov, Amirit Publ., 2019, pp. 53–54 (in Russian).
6. Bobodzhanova M. D. Donorno-aktseptornyye otnosheniya fotosinteticheskogo apparata i plodovykh organov u raznykh sortov srednevoloknistogo khlopchatnika [Donor-acceptor relations of the photosynthetic apparatus and fruit organs in different varieties of medium fi ber cotton]. Thesis Dis. Cand. Sci. (Biol.). Dushanbe, 1997. 24 p. (in Russian).
7. Kiriziy D. A. Infl uence of shading defoliation on photosynthesis and productivity in the system of donoracceptor relations of plant organism. Physiology and Biochemistry of Cultivated Plants, 2003, vol. 35, iss. 2, pp. 95–107 (in Russian).
8. Reddy P. J., Rao D. V. S., Rao G. R., Mahalakshmi B. K. Effect of defoliation on the growth and yield of new plant types of blackgram. Indian J. Plant. Physiol., 2000, vol. 5, iss. 1, pp. 99–100.
9. Kazaryan V. O., Oganyan A. S. Infl uence of darkening of stems on the vital activity of plants Helianthus annuus (Asteraceae). Botanical Journal, 1989, vol. 74, iss. 8, pp. 1160–1165 (in Russian).
10. Kiriziy D. A., Gulyaev B. I. Sugar beet productivity under various conditions. lighting. Physiology and Biochemistry of Cultivated Plants, 1993, vol. 25, iss. 2, pp. 187–192 (in Russian).
11. Hachaturov E. G. Khachaturov E. G., Korobko V. V., Stepanov S. A. Formation of the germ of the weevil during shading of the nodes of the stem Triticum aestivum L. Bulletin of the Botanical Garden of Saratov State University, 2019, vol. 17, iss. 2, pp. 171–178. DOI:
12. Giyasidinov B. B. Pokazateli fotosinteza i donornoaktseptornykh otnosheniy u raznykh genotipov khlopchatnika pri modelirovanii plodonosheniya [Indicators of photosynthesis and donor-acceptor relations in different cotton genotypes in fruiting modeling]. Thesis Dis. Dr. Sci. (Biology). Dushanbe, 2007. 23 p.
13. Fageria N. K., Baligar V. C., Clark R. B. Phisiology of Crop Production. New York, Food Product Press, 2006. 235 p.
14. Golub N. A. Parametry pervichnoy kornevoy sistemy ozimoy pshenitsy i vozmozhnosti ikh ispol’zovaniya v otsenke sortov [Parameters of the primary root system of winter wheat and the possibility of their use in the evaluation of varieties]. In: Fiziologiya produktivnosti i ustoychivosti zernovykh kul’tur : sb. nauch. tr. [Physiology of Productivity and Stability of Grain Crops. Collected papers]. Krasnodar, Krasnodarskiy NII sel’skogo khozyaistva im. P. P. Lukyanenko, 1988, pp. 42–47 (in Russian).
15. Korobko V. V., Pchelintseva N. V., Mironova N. V., Krylatova Ya. G., Zhestovskaya E. S. Effect of presowing treatment of (thio) with hemicarbazones 2,4-diaryl-bicyclo [3.3.1] non- 2-en-9-ones on the growth of Triticum aestivum L. Bulletin of the Botanical Garden of Saratov State University, 2019, vol. 17, iss. 2, pp. 124–132 (in Russian). DOI:
16. Polevoy V. V. Fitogormony. [Phytohormones]. Leningrad, Izd-vo LGU, 1982. 249 p. (in Russian).
17. Lisitsyn E. M. Indicators of the development of root systems in edaphic selection of barley. Legumes and Large Crops, 2018, vol. 2, iss. 26, pp. 66–71 (in Russian). DOI:
18. Shein Ye. V., Mazirov M. A., Goncharov V. M., Korchagin A. A., Umarova A. B., Zinchenko S. I. Agrofi sika [Agrophysics]. Vladimir, Izd-vo VlGU, 2014. 92 p. (in Russian).
19. Strapko A. M., Kasatkin M. Yu., Stepanov S. A. Light infl uence on morphogenesis wheat. Izv. Saratov Univ. (N. S.), Ser. Chemistry. Biology. Ecology, 2016, vol. 16, iss. 4, pp. 411–414 (in Russian). DOI: 9775-2016-16-4-411-414
20. Shevlyagina O. F., Korobko V. V. Some features of growth of etiolated plants in the aspect of implementation of donor/acceptor relations. Izv. Saratov Univ. (N. S.), Ser. Chemistry. Biology. Ecology, 2019, vol. 19, iss. 2, pp. 170–176 (in Russian). DOI:

Short text (in English): 
Full text (in Russian):