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October2015, №10(185)



Mukhitov L.., Timoshenkova .. MORPHOLOGICAL FEATURES OF TRITICUM DURUM VARIETIES IN THE CONDITIONS OF ORENBURG CIS-URAL STEPPE Arid conditions are rather usual and frequent for Orenburg Cis-Ural steppes. The drought impacts negatively the processes of wheat growth. This scientific work highlights peculiarities of morphological features of differently originated varieties of spring durum wheat. In different years stable ears produce the following varieties: Bezenchukskaya205, Bezenchukskaya stepnaya (or Bezenchukskaya of steppe), Gordeiforme1683, Orenburgskaya21, Kharkovskaya3 and Kharkovskaya23. Several varieties are marked by big length of a stem under the conditions of insufficient moistening and high temperatures of environment. They are Bezenchukskaya205, Gordeiforme1683, Orenburgskaya tselinnaya (or Orenburgskaya of virgin lands), Kharkovskaya3, Kharkovskaya23 and Tselinnaya2 (or of virgin lands2). It means that the varieties mentioned above are higher drought-resistant. They showed lower depression of growth processes. Numerous tests revealed strong interrelation of morphological features and productivity. Productivity increase with growing of ear length, stem length and upper internode length is observed up to a certain point, and then comes decrease of productivity. Optimum parameters of ear length for hard wheat are 7.5–7.7 cm; of stem length— 110–114 cm and of upper internode length— 52–55 cm. These values help to obtain high crop productivity in the mentioned conditions of the region. Optimal rate of stem length and ear length for the central part of the Orenburg region is about 17.7–18.2 units. The highlighted varieties are recommended to be used in the function of parents for being included into selective breeding programs of spring durum wheat under the conditions of the Southern Urals steppes.Key words: durum wheat, variety, ear length, stem height, length of an upper internode, productivity.

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References:

1. Golovochenko A.P. Peculiarities of adaptive selection breeding of soft wheat in Middle Volga forest-steppe zones. Kinel: JSC "SamVenKinel", 2001. p.380.

2. Dolgalev . . Upper internode length as a sign of drought-resistance // Regional conference of young scientists. Contribution report. Orenburg, 2003. pp.15-16.

3. Dolgalev .P., Tikhonov V.. Adaptive selection breeding of spring wheat in Orenburg Cis-Urals. Orenburg: Teachers training technical college of State Educational Institution "Orenburg State University", 2005. p. 290.

4. Ilyina L.G. Selection breeding of durum wheat in SRIA (Scientific Research Institute of Agriculture) of the South-East // Scientific work of SRIA of the South-East. Saratov, 1970. Edition 27. pp. 5-126.

5. Kuzmin V.P. Selection breeding and seed industry of cereal crops on virgin lands of Kazakhstan. .-Tselinograd: Kolos, 1965. p.199.

6. Kumakov V.. Selective breeding programs for improving photosynthetic activity rate of plants // The most important problems of photosynthesis in crop raising. .: Kolos, 1970. pp. 206 — 220.

7. Mukhitov L.., Samuilov F.D. Value of an upper internode and productivity of spring soft wheat varieties of different ecological groups in Orenburg Cis-Urals forest steppes. // News of the State Agriculture University of Kazan, 2014. Edition 9. №3. pp. 135-138.

8. Nichiporovich .., Stroganova L.., Chmora S.N., Vlasova .P. Photosynthetic activity of plants in seeds. ., published by the Academy of Sciences of the USSR, 1961. p.133

9. Nichiporovich .. Theory of photosynthetic productivity of plants and rational selective breeding programs oriented to productivity increase // Physiological and genetic basis of productivity increase of cereal crops. .: Kolos, 1975. pp. 5 — 14.

10. Savitskaya V.., Sinitsyn S.S., Shirokov .I. Durum wheat in Siberia. .: Agropromizdat, 1987. p.144.

11. Timoshenkova .., Kruchkova .G. Function of current varieties in productivity increasing of spring wheat // News of the Orenburg State Agricultural University, 2004. №2. . 79-82.

12. Kruchkov .G., Timoshenkova .. Architectonics of spring wheat and crop productivity // Processing methods of cereal cropping in the Southern Urals: collection of research papers. : News of the Russian Academy of Agricultural sciences. 2005. pp. 157-165.

13. Simpson G.M. Association between grain yield per and photosynthetic area above the flag — leaf node in wheat. Can.J. Plant Sci. 1968. 48 p.

14. Loomis R.S., Williams W.A. Productivity and the morphology of grop stands, patterns with leaves, In: Physiol. Aspects of crop yield (Ed Eoesten I.D. et al.) Amer. Soc. Agron., Madison. Wisc. 1969.

15. Nigam S., Srivastava I. Inheritance of leaf angle in Tritikum aestivum L. Euphutica, 1976. 252 p.


About this article

Authors: Muhitov L.A., Timoshenkova T.A.

Year: 2015


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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