濟州道 在來柑橘의 分布와 特性에 關한 硏究 = Researches on the geographical distribution and peculiarity of native species of CHE JU-DO citrus

다국어 초록 (Multilingual Abstract)

Following are the results surveyed and analyzed, by March 20, 1977, about the geographical distribution and peculiarity of native species of citrus growing spontaneously all over CHE Ju-Do; with a view to protecting their exterminaiton, to cultivation new improved species, and to develop them as herb remedy or processing materials.
1. Origin and growth : Such various species as Dang-Yuja, Yuja, Chung-gyul, San-gyul, Dongjong-gyul, Yu-gam, Ji-gak, Gum-gyul, Danggum-gyul, Doong-ja, Byong-gyul, Wae-gyul and Sokgum-gyul had been grown long before in CHE Ju-Do, Their fruits were presented to the court as a tribute or made habitual use of as herb remedy materials and rate fruits. Therefore, with a positive encouraging measure, the local government established many orchards in many areas, which made possible remarkable progress in growing skill,. When the improved species were introduced into this community, growers tended to neglect the growing management, so the native species gradually came to grow senile or to wither to death, resulting in only seven species surviving and the others are all exterminated.
2. Species distribution and its realities : The remaining seven species are Dang-yuja, San-gyul, Byong-gyul, Yuja, Ji-gak, Chung-gyul and Dongjong-gyul, which amounts to 1.351 trees in total number ; 678 of Dang-yuja, San-gyul 337, Byong-gyul 232, the others like yuja, Chung-gyul and Jigak are so few in the only one shrub of Dongjong-gyul remaining. As to the age of shrubs most are 100 years old or more and there four shrubs which are over 200 years in age.
3. Growing scale and production : In the present time farmhouses which maintain the native species number 748, among which 420 houses or 83% of all holders have one respectively and those which over four shrubs are no more than 14 house, whereupon each fails to produce economic unit of scale.
4. Growth realities : There being many which grow senile, the shrubs growing and bearing in normal state number only 335 (25%) and the other 548 corresponding to 41% show year alternate fruit-bearing. Those nearly withering to death and thus unable to revive are 207 in total.
5. Quality : Compared to the improved ones, the fruit's external appearance doesn't look good but they retain their peculiar taste and good fragrance.
6. Their usage and processing : Species like Dang-yuja, Byong-gyul, Donggong-gyul, would be preferable to the usage as fresh fruit, such species as Dang-yuja, Chung-gyul, Byong-gyul and Dongjong-gyul to the making of juice drink or processing, proper species for soft drinks from Yu-ja and Dang-Yuja and for the usage of herb remedy, San-gyul-pi (Jin-ip), Chung-gyul-pi(Chung-pi), Ji-gak and Gyul-pi would be practically valuable, By-products from such species for herb remedy amount to 1.070 kinds and are now made made habitual use of.
7. Prospects and problems : The native species are growing scattered in so small scale, so they cann't comprise an economic unit of scale. Thereupon, due to likely negligence of the managemnt, many shrubs are withering to death, so it would be grown into promising local industry if we should be successful in their collectivization for growth and if we could develop how to process and economically use their fruits.

목차 (Table of Contents)

• 1. 序 論
• 2. 調査 및 實驗方法
• 3. 在來 柑橘의 由來와 發展
• 4. 在來 柑橘의 分布 現況
• 5. 生態的 特性
• 6. 品種別 特性
• 7. 加工 및 利用
• 8. 展望과 問題点
• 9. 參考文獻