Аграрный вестник Урала № 09 (163) 2017
Биология и биотехнологииУДК:632.4:632.914
INFLUENCE OF WEATHER CONDITIONS DURING THE INTERPHASE PERIODS OF VEGETATION ON DEVELOPMENT OF LEAF DISEASES IN SPRING-SOWN WHEAT
For operational protective measures against foliar diseases of spring wheat is important for their timely prediction. Most
important in this case are the factors of heat and humidity of the growing season. The article presents the results of researches
of influence of weather conditions the interphase periods of the growing season of spring wheat on development of leaf diseases
under different sowing time in the Central zone of the Kurgan region. Positive correlation with precipitation and negative –
with the average daily air temperature were established. The development of brown rust was in close linkage with the amount
of precipitation and hydrothermal coefficient the interphase period out in the tube to the earing (r = 0.51). The development of
powdery mildew intensified with increasing amount of precipitation and SCC in the period from the earing to the flowering
(r = 0.54). When sown at different periods the influence of weather factors differed. The development of brown rust with late
planting have increased with the increase in precipitation during periods from the tillering before flowering (r = from 0.44 to
0.81). Lowering the temperature had an impact on strengthening the development of the disease with early sowing date in the
period prior flowering (r = -0.50), with late planting in the period from the shooting of the flag leaf (r = -0.52). The development
of powdery mildew was in close positive dependence relationship with precipitation and negative with temperature in the time
from tillering up to flag-leaf and from earing to the flowering, with late planting. This causes the maximal manifestation of the
disease in these phases and at this sowing date. With early sowing of significant relationship of disease development rainfall
and temperature are not set, the plants of spring wheat at this period had much less powdery mildew. The obtained data can be
used to predict the development of the leaf diseases spring wheat.
Keywords:
Keywords: brown rust, powdery mildew, spring wheat, weather conditions, prediction of diseases, monitoring.
References:
1. Sanin S. S. Phytosanitary examination and decision-making on spraying of wheat fungicides. Theory and
practical recommendations // Annex to the “Protection and Quarantine of Plants” magazine. 2016. № 5. P. 54
(2)–88(36).
2. Kekalo A. Yu., Nemchenko V. V., Zargaryan N. Yu., Tsypysheva M. Yu. Protection of grain crops against
diseases. Kurtamysh : Kurtamyshsky Printing House, 2017. 172 p.
3. Ganiyev M. M., Nedorezkov V. D. Chemical means of protection of plants. M. : Kolos, 2006. 248 p.
4. Kuleshov V. A., Bilik M. O., Dovgan S. V. Phytosanitary monitoring and forecast : textbook for beginners.
Kharkov : Espada, 2011. 608 p.
5. Zhichkina L. N. Leaf and stem diseases in crops of wheat // Agrarian science – to agriculture: coll. of art.
Barnaul, 2017. P. 108–110.
6. Vasilyeva N. V., Sineshchekov V. E. Leaf and stem infection of spring-sown field at soil-protective agriculture
in the forest-steppe of Western Siberia // Bulletin of the Novosibirsk State Agricultural University. 2014. Vol. 2.
№ 31. P. 7–13.
7. Bogdanova V. V., Evseev V. V., Goloshchapov A. P. New approach to monitoring of aerogenic infections of
grain crops // Protection and quarantine of plants. 2010. № 8. P. 47–48.
8. Gorlenko M. V. About some directions of evolution of phytopathogenic mushrooms // Mycology and
phytopathology. 1995. № 29. P. 87–94.
9. Chulkina V. A., Konyaeva P. M., Kuznetsova T. T. Fight against diseases of crops in Siberia. M. : Rosselkhozizdat,
1987. 252 p.
10. Polyakov I. Ya., Persov M. P., Smirnov V. A. Forecast of development of wreckers and diseases of crops. L. :
Kolos, 1984. 320 p.
11. Kolesnikova Yu. R. Influence of agroecological factors on efficiency of spring-sown soft field and development
of causative agents of diseases in the conditions of the Northwest of the Russian Federation : abstract of dis. ... cand.
of agr. sci. SPb., 2012. 22 p.
12. Sheshegova T. K., Shchekleina L. M., Shchennikova I. N., Martyanova A.N. Correlation between development
of mushroom infection of grain crops and seasonal dynamics of climatic factors // Achievements of science and
technology of agrarian and industrial complex. 2017. Vol. 31. № 4. P. 58–61.
13. Koyshibayev M. Protection of grain crops against diseases with an airborne infection : practical guidance.
Almaty, 2006. 30 p.
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