Relation between leaf tissue parameters and drought resistance of peaches

Tissue parameters of leaves of 6 peach cultivars were observed and analyzed. The results showed that there were significant differences of leaf thickness, epidermis hair density, size of upper epidermis cells, stoma density, stockade tissue thickness, sponge tissue thickness, CTR, SR and ratio of stockade tissue thickness/sponge tissue thickness among the cultivars, and there was not significant difference of epidermis thickness, cutin thickness and stoma length. The cultivars with high stoma density, thick stockade tissue, high CTR, low SR, high ratio of stockade tissue thickness/sponge tissue thickness and small size of upper epidermis cells in leaves had strong ability of drought resistance.