| 摘要 |
PROBLEM TO BE SOLVED: To provide a vessel for seedling growth which is composed of a mixture of poly(lactic acid) and starch, resistant to hydrolysis to maintain its mechanical strength during rearing the seedling and can be buried in a soil when the seedling is planted in the soil and can allow the roots of the seedling to freely extend outward and tangle to the surrounding walls. SOLUTION: This pot is produced by forming a mixture of poly(lactic acid) with starch where the content of starch is <=40wt.%. The poly(lactic acid) preferably has a weight-average molecular weight of 150,000-250,000 and the starch has an average particle size of <=10μm. The objective vessel may be obtained by forming a mixture of poly(lactic acid), <=10wt.% of other aliphatic polyester and <=40wt.% of starch or by forming a mixture of 70-90wt.% of poly(lactic acid), 30-10wt.% of other aliphatic polyester and starch where the content of starch is <40wt.%.
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