During 2012– 2014 years, field experiments were performed in Vegetable Research-Development Station Bacau - Romania, in order to evaluate the behaviour of vegetable species to the low temperature at the winter. It was studied the following species and varieties: white cabbage: V1 - Silviana, V2 -De Buzau and V3 - De Işalniţa; lettuce: Marilena V1 sowing in autumn and V2 sowing in spring; spinach: Premier V1 sowing in autumn and V2 sowing in spring; onion - Orizont, V1 from seed, V2 – from bulbs; chives – V3. The study of tolerance of this varieties show a good resistance at low temeperature from winter. Monitoring pathogen show the attack of Erwinia carotovora at cabbage: V1 Silviana – 17,5%; V2 De Isalnita – 21,6%; V3 De Buzău – 27,2%.
