Study on Polyploid Induction and Primary Identification in Shuijing Grapes

Potting Shuijing grapes were used as materials. The effects of colchicines treatment at different time and concentrations were studied on polyploid induction. The treated parts of the plants were shrouded by absorbent cotton to ensure the optimal treating time and concentration. Comparisons of configurations,physiology and biochemistry,anatomy,cytology identification were done between the variant plants and contrast plants. The results showed that the best induction rate was achieved at 8 mg /mL of colchicines treatment for5 days. The treated plants showed the great possibility of polyploid and obviously stronger indications than water treatment plants in the distance between nodes,leaf thickness,SOD enzyme activity,stomatal density and size,tube diameter and length,and cell size.