木瓜栽培直播與移植效果之研究

A Study on the Effects of Direct Seeding 1n Comparison with Trans planting of Papaya in Cultural Practice

木瓜亦稱番木瓜（Carica papaya. Linn.）為熱帶果樹之一，其果實富合維他命A、C及糖分，營養價值甚高，且其果實中之乳汁合有木瓜酵素（papain），能分解動物性蛋白質，為最佳之助消化劑及肉類軟化劑，歐美各國早已將提製之木瓜酵素粉，供應於家庭、醫藥、釀造及工業上之需要。故其經濟價值日益提高，受人重視。

This experiment was carried out in the Fruit Garden of the Horticultural Department of Taiwan Provincial Agricultural College since May 1958 through May 1960 The direct seeding of Solo and Mexico papaya as Well as once transplanting, twice transplanting and trice transplanting were applied as four treatments in this experiment. From the results of this experiment. we obtained the following conclusion: The direct seeded papaya plants showed faster development, earlier flower-buds appearing and fruiting than those transplanted. The locality of the first fruiting was on a higher position of the stem and they took a shorter time to mature, from seeding to harvesting they took about 330 days. As to the strength of resisting against typhoon, direct seeded Solo showed weakest resistance in the garden, and the direct seeded Mexico showed much stronger than the direct seeded Solo variety. On the contrary, all the plants which were transplanted had gradually become dwarfer. Especially, those transpnted trice, the height of the plants were the dwarfest, and the stems were the thinner; the flower-buds appearing, fruiting and havesting were later than those of the other 3 treatments. They had satisfactory strength of resisting against the fierce wind and the production was abundant.