Cold Resistance of Kohlrabi (Brassica Oleraceae var. Gongylodes)

Abstract

In this study, two F1 hybrid Kohlrabi cultivars (Quickstar and Rapidstar) were tested for their cold resistance at four different plant development stages (seedling, tuber formation, tuber development and harvest stages),and at three different low temperatures (0, -5, -10 degrees C). By these cold temperature tests, changes in electricity conductivity and membrane permeability were examined. Trials were organised according to the randomised block design with three replications. Mean values were used in estimating vitality ratio (%). Cold tests also show that Quickstar becomes to be more sensitive after tuber development stage, but in Rapidstar, sensitivity starts by the tuber formation stage which is an earlier stage than other.