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전우방 한국잔디학회 1989 한국잔디학회지 Vol.3 No.1
In oder to find out the effective seed germination testing method to the field emergence, an experiment was conducted ; 1. TTC testing results were higher percentage than any other germination testing methods . 2. On the corn seed , field emergence was highly correlated with germinator test, TTC test and AA test hut cold test was lower percentage . 3. Field emergence , on the soybean seeds was highly correlated with AA test and cold test but germinator test and TTC test was higher percentage .
한국잔디(Zoysia Japonica Steud)의 실생번식법 확립에 관한 연구 II. 종자의 발아형태 조사
전우방 한국잔디학회 1989 한국잔디학회지 Vol.3 No.2
To establish a lawn Zoysia japonica Steud with seeds a win of experiments were conducted for the investigation of seedling root system. The results m summarized m follows; Zoysia japonica and maize elongated mesocotyle in germinating stage. but rye and barley did not. The mesocotyle of Z. japonica seed pushed the elongating coleoptile up throngh the soil, hence could emerge from more deeply planted. The crown roots of Z japonica originated from the coleoptile node. The crown roots of barley originated from the first foliage led node.
한국잔디(Zoysia japonica Steud.) 종자의 발아촉진에 관한 연구
전우방 한국잔디학회 1987 한국잔디학회지 Vol.1 No.1
In order to promote the germination of Korean lawn grass(Zoysia japonica Steud.) seeds a gravimetric seed selection with a mixed chemical solution and the germination promotion with KOH treatment were studied and following results were obtained. 1. When immersed into methanol(S.G., 0.7) 14 percent of immature seeds were precipitated. 2. With water (S.G., 1.0) 36.5 percent of mature seeds were submerged. 3. On a mixture of carbon tetrachloride (S.G., 1.6) and ethylether (S.G., 0.7) in a ratio of 4:6 the seed selection was most effective. 4. When treated with KOH solution the germination rate was 71.01 percent in contrast to 6.0 percent of germination without the treatment. 5. As for concentration of KQH solution, 15 percent depressed the germination (46.7 %) whereas above 20 % the germination rate was gradually increased (79.32 %) up to 40 percent of concentration where the concentration started to depress germination ratio (77.32 %). 6. Finally, in connection with the duration of KOH treatment, a time lapse of up to 20 minutes depressed the germinating ratio(70.02 %) and 30 minutes to 45 minutes increased this ratio to 94.52 percent. 60 minutes of treatment depressed the germination to 75.62 percent.
한국잔디(Zoysia Japonica Steud)의 실생번식법 확립에 관한 연구 I. 종자의 생리적 성숙기 조사
전우방 한국잔디학회 1989 한국잔디학회지 Vol.3 No.2
Tes ratablish a liawn Zoysia' Japonica Steud. with seeds. a experiment was conducted for the invrati ignt ic in oil seed's physic sit ogical maturity. The rt.sultt an' Summarized as follows: 1. The point of maximum weight off 1000 seeds and 100 seedling, germination speed and germination percentage were reached at 30 day. after anthesis. it would be considered as physiological maturity of Zoysia japonica seed. 2. The seeds moistures contents at physiological maturity was decreased in 18%. 3. Germination vigor deteriorated prior to viability. 4. The seeds were capable of germination in 3:4% at 10 days after anthesis. 5. Field deterioration of seeds occurer from 40 (lays after anthesis to 60 days and sprouted seedilng vigor was very poor.