This study was carried out to investigate the condition of respiration, weight loss and sprout leaf growth of garlic cloves stored under natural temperature, and the effects of treatments of low and high temperature, cutting the storage leaf and some chemicals on the sprouting of garlic cloves.
1. Through the month of August with high air temperature, the respiration rate was relatively low, but it became higher around September and highest in the middle of October and then it lowered. until the end of February, and the rate became higher again from the beginning of March.
2. Sprout and foliage leaves entered into growth since about the 5th of September and the length of sprout leaf became equal to that of clove by December.
3. The weight of garlic bulb decreased with constant rate by the end of February and the decreasing rate became higher since March, and it was observed that the weight loss reached more than 40% of total weight at the end of March.
4. The time required for the 50% sprouting of garlics seeded in August by 5 days interval was about 60 days.
5. No treatment of GA, ethylene chlorohydrin, thiourea and ethrel accelerated the sprouting of garlics.
6. The treatment of high and low temperature and cutting off storage leaf accelerated the sprouting of garlics significantly. In the latter case, the number of days required for 50% sprouting decreased with the increment of the part of storage leaf cut off.
7. The results of this study indicated that the physiological dormancy breaking of six cloved garlic occurs at two months after harvest, that is, at about 5th of September, and that sprout inhibiting substances which could be destroyed by the treatment of high or low temperature could occur in the storage leaf.
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