檄樹果實性狀與植化素含量之季節性變化

Seasonal Variations of Fruits Characteristics and Main Phytochemicals Content of Noni (Morinda citrifolia L.,) Fruit

周年調查結果顯示，檄樹於6月所調查之適採期果實上的開花總數最多，但果實鮮重、乾重及體積卻最低。1至4月及10至12月間之果實，大致較5至9月的果實大且重，形狀亦較偏向長橢圓形。檄樹果實於7至12月適採期果實的總多元酚含量、芸香苷及東茛菪素含量，都較上半年即1至6月的適採期果實高且穩定。檄樹果實中的種子具有氣室，使其可以漂浮於水面，與傳播種子有相當密不可分之關係。種子在果實標定後約18週已發育完成，而氣室在果實發育8週時已明顯可見。
According to the whole year investigation, the number of flowers per fruit was at its highest in June, but the fruit fresh weight, fruit dry weight and fruit volume were at their lowest. The fruit of the commercial harvest maturity from Jan. to April and Oct. to Dec. were significantly larger, longer and heavier than those harvested during May to Sep.. Theharvested fruits from July to December had greater and more constant Phytochemical contents than the scopoletin, and rutin contents from January to June. Noni seed had a distinct air chamber and was capable of floating on water, which led to its seeds easier to spread. The seeds reached full maturity after labeling at the 18th week, while the air chamber was visible at the 8th week.