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섬바디의 물질생산력 광합성 및 하고현상에 관한 생리생태학적연구
장남기,조기연 ( Nam Kee Chang,Ki Yeon Cho ) 한국축산학회 1977 한국축산학회지 Vol.19 No.6
This study was performed to find the effects of environmental factors on the seasonal changes of the matter production and of Dystaenia takesimana population in Seoul area in 1975. The peak value of standing crops of above-ground parts was 1,428.5 D.M. g/㎡ on October 27. The maximum productivity of above-ground parts was 55.21 D.M. g/㎡/day on July 38 to August 4 and that of under-ground parts was 26.72 D.M. g/㎡/day on July 18 to 28. The low productivities of above-ground parts were -17.47 D.M. g/㎡/day late in June and -48.42 D.M. g/㎡/day early and late in August. And those of under-ground parts were -31.9 D.M. g/㎡/day early in August and -14.5 D.M. g/㎡/day late in August. The range of optimum temperature of photosynthetic activity was from 17℃ to 19℃. The threshold of photosynthetic activity under the condition of relative maximum water holding capacity of 75% was 55㎎/dm²/hr. Summer decline phenomena of the matter production eras due to the high temperature and drought. This phenomena for Dystaenia takesimana was evidiently shown late in June and early sin August.