Pineapple에 있어서 生長調節物質 處理에 依한 開花促進과 收穫期調整에 관한 硏究 = A Study on the Effect of the Growth Substances on the Control of Flowering Induction and Harvesting in Pineapple Plant.

국문 초록 (Abstract)

本 硏究는 pineapple 植物에 대하여 植物生長調節物質 處理에 依한 開化誘導 收穫期 調整에 있어서 效果的인 方法을 究明하기 爲하여 遂行되었다.
그 結果를 要約하면 다음과 같다.
抽苔期는 acethylene gas (carbide) 施用區에서 가장 反應이 빨리 나타났으며 ??-naphthalene acetic acid 10ppm 1回, 2回 處理區 및 a-naphthalene acetic acid 50ppm 1回 處理區에서 그 다음 順位였고, ??-nphthalene acetic acid 50ppm 2回 및 3回 處理區에서는 反應이 가장 늦게 나타났다.
全體 開花 效果는 ??-naphthalene acetic acid 50ppm 3回 處理區에서 83.3%로 가장 낮았고, ethylene gas(ethrel)200ppm, 1,000ppm 施用區에서 各各 94.3%를 나타내었으며 그 外의 處理區에서는 100% 의 開花率을 보였다.
果實의 收量에 있어서 抽苔가 빠른 acethylene gas 및 ??-naphthalene acetic acid 10ppm 1回 處理區에서 平均 果實收量(1.45kg, 1.42kg)이 增收하였고, 開花效果가 不進하였던 收量指數가 61.3으로 가장 낮았다.
冠芽의 크기는 開花期가 빨랐던 處理區에서 果實의 收量과 類似한 傾向으로 增加함을 보였다.

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate the effect of the growth substances(acethylene gas, ??-naphthalene acetic acid, and ethylene) on the control of flowering induction and harvesting in pineapple plant.
The results obtained are as follows;

The earliest earing was gained in the plot treated with acethylene gas(carbide). The considerable effect was producde in the plots treated with ??-naphthalene acetic acid 10ppm once or twice and with ??-naphthalene acetic acid 50ppm one time. But in the plot treated with ??-naphthalene acetic acid 50ppm three times, the reaction was not so effective.

The effect of flowering induction was lowest(83.3%) in the plot treated with ??-naphthalene acetic acid 50ppm three times, and in the plots treated with ethylene gas (ethrel) 200ppm and 1,000ppm, the rate of flowering was 94.4% respectively. Except those plots, the rate of flowerining induction were 100%

The yield of fruit increased in the polt treated with acethylene gas and with ??-naphthalene acetic acid 10ppm one time (1.45kg, 1.42kg respectively).
And in the plot treated with ??-naphthalene acetic acid 50pm three times, the yield index was lowest (61.3).
The size of crown tended to be enlarged in propotion to the rate of fruit yield in the plot in which the effect of flowering induction was effective.