國內外 拘杞子 蒐集種의 生理生態的 特性差異

Varietal differences of the physiological and ecological characters of boxthorn

This experiment was conducted to investigate the physiological and ecological characteristics, and obtain the basic data for breeding disaster resistance and high yielding varieties at Daejeon, Chung Nam from 1984 to 1986. Varieties used in this experiment were 29 native varities collected in Korea and oversea and 9 mutant species treated with Co 60 and Colchicine. Dry fruit yield of Japanese-2 variety was 108Kg per 10a and 56% increased compared with standard cultured variety. Iycii cortex yield was 7.9Kg per 10a and increased 259% with Colchicine treatment. As the photosynthesis from May to August and R.G.R. treated with Co 60 had been high, the growth and development was posperous but flowering time was delayed 7-15 days. Also, as the number of flowering but per plant had been scarce, dry fruit yield was decreased 32% compared with Cheongyang variety. Yearly differences of principal characteristics in upper and lower parts was small but varietal difference of principal characteristics was obvious and varietal heritability was high.