Comparison of Growth Characteristics and Yield among Different Varieties of Colocasia esculenta

For further screening and develop appropriate plant germplasm resources of Colocasia esculenta in Hunan province,the paper contrast and analysis the growth characteristic of three varieties in the ecological region of Hunan province by the introduction to large planting area and high output quality of Fujian Fuding Colocasia esculenta,Guangxi Lipu Colocasia esculenta and Hunan Qiyang Colocasia esculenta,to meet consumer demand for Colocasia esculenta product and quality. The result was shown as follow: dry matter accumulation of the aboveground part and leaf area in the Fujian Fuding Colocasia esculenta was higher than the other two varieties,dry weight of lateral root was also showed the same trend with dry matter accumulation of the aboveground part and leaf area. Yield of Fujian Fuding Colocasia esculenta was also significantly higher than that of Guangxi Lipu Colocasia esculenta and Hunan Qiyang Colocasia esculenta,the difference of varieties was showed the individual size of taro. Consequently,the results also suggest that Fujian Fuding Colocasia esculenta can planting on ecological area in Hunan province.