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이만상,김중래,한창열 한국수산학회 1981 한국수산과학회지 Vol.14 No.1
As one of the fundamental studies for the breeding of marine algae, this paper deals with the effects of plant hormone on the growth of microscopic filamentous gametophyte of undaria pinnatifida. The results obtained are summarized as follows: (1) All zoospores were settled on slide glass, germinated and developed into gametophytes, without the growth of germination tubes when treated with 0.1 mg/ℓ of 2.4-D, or 0.1, 1.0 or 5.0 mg/ℓ of keinetin (2) The best growth effect in total average was observed at 0.1 mg/ℓ of Keinetin, when the growth-rate was 248.9% in contrast with control, and was followed by 1.0 mg/ℓ of IAA (243.3%), and 0.05 mg/ℓ of 2.4-D (205.6%) (3) It was certain that the growth-effect by each plant hormone had some differences between male and female gametophytes. IAA was very effective in the growth of male gametophytes but Keinetin in that of females. Especially in females, the efficiency of Keinetin was recorded best at 239.0% at 5.0 mg/ℓ and 222.0% at 0.1 mg/ℓ. On the other hand, it was 195.1% in its best at 0.5 mg/ℓ of IAA, and 146.6% was recorded best 2.4-D at 0.05 mg/ℓ.