Abstract
1) It was tried to estimate the corm separability in different varieties of taro. ‘P51’, ‘TC’, ‘Ishikawa-wase’, and ‘Kyoto No. 2’ were used in this experiment. ‘TC’ is a variety obtained from shoot tip culture of ‘Egu-imo’ and ‘P51’ is a mutant variety obtained from shoot tip of ‘Egu-imo’ treated with PFP. Three clusters of corms were put into a concrete mixer of which diameter is 75cm, and the mixer was rotated about 20RPM. The degree of separation of corms were observed at 60 seconds after beginning of the treatment. The percentage of the corms separated to single corm is about 90 in ‘P51’, and about 70 in other varieties. It was indicated that corms of ‘P51’ were more easily separable than those of the other varieties.
2) Labor saving for the harvest preparation of taro corm was tried by using ‘P51’. Seed corms were planted in April 24 of 1996 and corms were harvested in November 25. Time for corm separation by hand was clocked. The time taken for separation per corm of ‘P51’ was shorter than that of ‘TC’ at 20 percentage.
