The quality of the rose's floral stem can be affected by numerous faults as small button or diseases and injuries. This study aimed to evaluate the morphological (length and rightness of stem and rose bud) and fitossanitary (downy mildew, powdery mildew, gray mold and caterpillar damage) characteristics in seven varieties of rose grown in a greenhouse. The characteristics were analyzed three times. The average length of floral stems ranged from 56.1 to 83.3cm, while the average length of buttons ranged from 4.7 to 5.2cm in the varieties evaluated. Symptoms of downy mildew, powdery mildew, gray mold and damage caused by caterpillar were observed, although powdery mildew were the main problem witch affect from 2,9 to 41,3% of floral stems. About 70% of the stems of all varieties showed characteristics of type C or D during the classification stage. These results reinforce the necessity of evaluating new varieties before the implementation of commercial cultivation.
bud length; fungi diseases; stem classification; stem length; Rosa sp
