Tolerance of winter small grains to low temperatures | Толерантност озимих стрних жита према ниским температурама
2009
Николић, О., Центар за стрна жита, Крагујевац (Serbia) | Миловановић, М., Центар за стрна жита, Крагујевац (Serbia) | Перишић, В., Центар за стрна жита, Крагујевац (Serbia)
This paper presents a review of the problem of low positive and negative temperatures as stress factors in growing of small grains, with point to tolerance of some winter cultivars of small grains created in Kragujevac (Serbia) to low negative temperatures and its frost resistance. During the four years of investigation, exceptionaly high ability of survival was demonstrated by the following cultivars of winter wheat: KG 56 S, Takovčanka, Studenica, Toplica, Planeta and Kruna, with average survival of its plants from 93 to 100%. Besides the aforementioned cultivars, a very good resistance was observed in the Vizija and Aleksandra cultivars as well, with average plants survival ranging from 77 to 89,6%. From the rest of tested KG cultivars and species of small grains, winter rye Raša in the same period survived in the average 99,3% and high resistance was demonstrated by cultivars of winter triticale Trijumf, Žarko and General, with a survival rate ranging from 72 to 95%, also on -140C/12-24h. Good resistance results were shown by cultivars of winter (facultative) triticale Favorit (54%), as well as cultivar of spring (facultative) triticale Vojvoda as well, wich survived in average 47% of the cases, while cultivar of winter triticale- standard in cultivars approval commision in Serbia (KG 20) survived on average 65%. Actual KG cultivars of winter barley Grand, Rekord, Jagodinac and Maksa as well as winter oat Vranac, also belong to the highly resistant or middle resistant groups, with successful survival at temperatures from -12 deg C without snow.
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