ﺗﻐﻴﻴﺮ ﺳﻴﺴﺘﻢﻫﺎی دﻓﺎﻋﻲ آﻧﺘﻲ اﻛﺴﻴﺪان در ﺑﺮﺧﻲ از ﮔﻮﻧﻪﻫﺎی وﺣﺸﻲ ﺑﺎدام ( Prunus L. spp.) در اﺛﺮ اﻟﻘﺎی ﺗﻨﺶ ﺳﺮﻣﺎ

Wild almond species (Prunus spp.) demonstrate a greater resistance to low temperatures due to their antioxidant defenses and so represent valuable germplasm sources for rootstock breeding. Eight genotypes of wild almond were subjected to two different cold treatments. The enzymatic antioxidant responses in leaves were measured. The differences in antioxidative traits among the almond species support the hypothesis of their importance in cold tolerance and could provide an useful probe to identify tolerant genotypes in breeding programs.