Effect of Storage Duration and $GA_3$ of Seed Germination of Celosia argentea

개맨드라미 종자 수확 후 저장 기간 및 $GA_3$처리가 발아율에 미치는 영향

  • Published : 2005.10.01

Abstract

This experiment was conducted to improve germination rate of the seed treated duration of storage and $GA_3$ in Celosia argentea. With the seed directly after harvest, as increasing concentration of $GA_3$, ranged from 50ppm to 200ppm, and dipping hour, ranged from 6 to 24 hour, the rate of germination was also increased. The germination of seed dipping in 200ppm $GA_3$ for 24 hours was the highest with $52\%$ compared to the control with $12\%$. As increasing storage duration in $22{\pm}2^{\circ}C$, ranged from 2 weeks to 12 weeks, the rate of germination was also increased showing $84\%$ at 12 week. However, the rate of germination was not increased with the storage of $5^{\circ}C,\;0^{\circ}C,\;and\;-70^{\circ}C$. With the seed storage 16 weeks in $22{\pm}2^{\circ}C$ after harvest, the rate of germination was $84\%$. The rate of germination was increased $94\%\;to\;99\%$ by the $GA_3$ concentration, ranged from 50ppm to 400ppm, and dipping hour, ranged from 6 to 24 hour. The germination was finished 4 days after sowing.

개맨드라미의 종자 발아는 수확직후에는 $GA_3$ 200 ppm 까지는 처리 농도가 증가할수록 발아율이 증가하는 경향이었고, $GA_3$처리 6시간에서 24시간까지는 시간이 증가할수록 발아율이 증가하는 경향이었으며 $GA_3$ 200 ppm 24시간처리에서 $52\%$ 발아율로 가장 높았다. 개맨드라미의 수확직후 종자의 발아는 파종 후 3일부터 시작되어 6일이면 거의 발아가 되는 것으로 나타났다. 개맨드라미의 종자를 수확 후에 바로 발아시킨 것은 $12\%$의 발아율을 나타낸 반면 $22{\pm}2^{\circ}C$에 2주 저장은 $43\%$를 보였고, 저장기간이 길어질수록 발아율이 증가하여 12주 저장의 발아율은 $84\%$까지 증가하였다. 그러나 $5^{\circ}C$의 저장에서는 2주 저장이 $18\%$의 발아율을 보였고, 12주 저장에서는 $26\%$의 발아율을 나타냈고, $0^{\circ}C$$70^{\circ}C$의 저장에서는 저장기간이 길어질수록 발아율이 낮아지는 경향을 나타내어 12주 저장에서 는 $8-9\%$로 낮아졌다. 종자를 16주간, $22{\pm}2^{\circ}C$에 저장한 후에 발아율은 $82-84\%$로 높게 나타났고, 여기에 $GA_3$ 50 ppm에서 $GA_3$ 400 ppm 및 6시간에서 24시간 농도와 처리시간에 크게 관계없이 $94-99\%$의 높은 발아율을 나타냈다. 저장 후의 개맨드라미 종자의 발아는 파종 후 2일이면 대부분되고 4일이면 발아가 완료되는 것으로 나타났다.

Keywords

References

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