본 연구는 장미 삽목묘의 생산 효율을 높이기 위해 발근촉진제가 장미 삽목 발근에 미치는 영향을 구명하고자 실시하였다. 발근촉진제로는 널리 사용되고 있는 Rootone과 IBA 500, 1000, 2000 mg·L^(-1), 해조추출물 Kelpak 1:1, 1:10, 1:50, 1:100, 1:250, 1:500, 1:1000, 1:2000배 희석액과 무처리 등 13처리를 하였고, 삽목용토는 암면과 coconut coir를 사용하였다.
실험은 2...
본 연구는 장미 삽목묘의 생산 효율을 높이기 위해 발근촉진제가 장미 삽목 발근에 미치는 영향을 구명하고자 실시하였다. 발근촉진제로는 널리 사용되고 있는 Rootone과 IBA 500, 1000, 2000 mg·L^(-1), 해조추출물 Kelpak 1:1, 1:10, 1:50, 1:100, 1:250, 1:500, 1:1000, 1:2000배 희석액과 무처리 등 13처리를 하였고, 삽목용토는 암면과 coconut coir를 사용하였다.
실험은 2차로 나누어, 1차 실험에서는 삽목 25일 후에 발근수, 최대근장, 발근량을, 35일 후에 고사율, 75일 후에 지상부 생육 및 광합성을 측정하였다. 2차 실험에서는 초기 발근 상태를 알기 위해 삽목 후 15일에 캘러스 형성율, 20일과 35일 후에 근수, 근장, 근량, 신초장 및 발근율을 조사하였다.
발근촉진제 처리에 의한 발근율은 Kelpak 처리구와 IBA 500 mg·L^(-1) 처리구에서 양호하여 100%의 발근율을 보였고, IBA 1000 mg·L^(-1)와 Rootone 처리구도 91.7%로 양호하였다. 그러나 IBA 2000 mg·L^(-1) 처리구에서는 발근율이 8.3%로 매우 저조하였다. 고사율은 IBA 2000 mg·L^(-1) 처리에서 66.7%로 가장 높았고, Kelpak은 생존율이 매우 높아 모든 처리구가 100% 생존하였다. 뿌리 생육에 있어 1차 실험에서 근수와 근량은 IBA 500, 1000 mg·L^(-1) 처리구에서 높았고, 근장은Kelpak 처리구에서 값이 높게 나타났으며, 희석 배수가 높아질수록 뿌리가 길어지는 경향이었다. 2차실험에서는 IBA 500 mg·L^(-1) 처리구에서 근수, 근장, 근량이 높았고, Kelpak 처리구는 근수, 근장, 근량에 있어 대조구인 Rootone 처리와 통계적인 유의차가 없었다. 신초 생육은 Kelpak 처리에서 좋았는데 IBA나 Rootone 처리에 비해 신초 발생이 10일 이상 빨랐다. 후기 생육에서는 Kelpak 250배 희석 처리구에서 신초장, 지상부 생육, 엽수 등이 높았다.
이상의 결과 장미 삽목시 Kelpak 처리가 발근율이 100%이고 뿌리가 길게 신장하며 신초 생육이 좋아 발근촉진제로서 이용 가능하다고 판단된다.
본 연구는 장미 삽목묘의 생산 효율을 높이기 위해 발근촉진제가 장미 삽목 발근에 미치는 영향을 구명하고자 실시하였다. 발근촉진제로는 널리 사용되고 있는 Rootone과 IBA 500, 1000, 2000 mg·L^(-1), 해조추출물 Kelpak 1:1, 1:10, 1:50, 1:100, 1:250, 1:500, 1:1000, 1:2000배 희석액과 무처리 등 13처리를 하였고, 삽목용토는 암면과 coconut coir를 사용하였다.
실험은 2차로 나누어, 1차 실험에서는 삽목 25일 후에 발근수, 최대근장, 발근량을, 35일 후에 고사율, 75일 후에 지상부 생육 및 광합성을 측정하였다. 2차 실험에서는 초기 발근 상태를 알기 위해 삽목 후 15일에 캘러스 형성율, 20일과 35일 후에 근수, 근장, 근량, 신초장 및 발근율을 조사하였다.
발근촉진제 처리에 의한 발근율은 Kelpak 처리구와 IBA 500 mg·L^(-1) 처리구에서 양호하여 100%의 발근율을 보였고, IBA 1000 mg·L^(-1)와 Rootone 처리구도 91.7%로 양호하였다. 그러나 IBA 2000 mg·L^(-1) 처리구에서는 발근율이 8.3%로 매우 저조하였다. 고사율은 IBA 2000 mg·L^(-1) 처리에서 66.7%로 가장 높았고, Kelpak은 생존율이 매우 높아 모든 처리구가 100% 생존하였다. 뿌리 생육에 있어 1차 실험에서 근수와 근량은 IBA 500, 1000 mg·L^(-1) 처리구에서 높았고, 근장은Kelpak 처리구에서 값이 높게 나타났으며, 희석 배수가 높아질수록 뿌리가 길어지는 경향이었다. 2차실험에서는 IBA 500 mg·L^(-1) 처리구에서 근수, 근장, 근량이 높았고, Kelpak 처리구는 근수, 근장, 근량에 있어 대조구인 Rootone 처리와 통계적인 유의차가 없었다. 신초 생육은 Kelpak 처리에서 좋았는데 IBA나 Rootone 처리에 비해 신초 발생이 10일 이상 빨랐다. 후기 생육에서는 Kelpak 250배 희석 처리구에서 신초장, 지상부 생육, 엽수 등이 높았다.
이상의 결과 장미 삽목시 Kelpak 처리가 발근율이 100%이고 뿌리가 길게 신장하며 신초 생육이 좋아 발근촉진제로서 이용 가능하다고 판단된다.
This study was conducted to examine the impact of rooting stimulants on rooting and growth of rose cuttings in order to raise the production efficiency of rose cuttings. Regarding rooting stimulants, 13 different treatments were used: Rootone; IBA 500, 1000, 2000 mg·L^(-1); Kelpak 1:1, 1:10, 1:50, 1...
This study was conducted to examine the impact of rooting stimulants on rooting and growth of rose cuttings in order to raise the production efficiency of rose cuttings. Regarding rooting stimulants, 13 different treatments were used: Rootone; IBA 500, 1000, 2000 mg·L^(-1); Kelpak 1:1, 1:10, 1:50, 1:100, 1:250, 1:500, 1:1000, 1:2000 diluted solutions; and no treatment. As for sibstrate for cuttings, rockwool and coconut coir were used.
Experiments were conducted in two rounds. In the first experiment, the number of roots, root length and root weight were measured at 25 days after cuttings. Mortality rate was checked 35 days after cuttings. Then, 75 days after cuttings, growth of top part and photosynthesis were measured. In the second round of experiment, in order to check initial rooting status, callus formation ratio was surveyed 15 days after cuttings and the number of roots, root length, root weight, new shoot length, and rooting rate were surveyed at 20,25 and 35 days after cuttings.
Rooting ratio was outstanding at 100% in the Kelpak treatment plot and the IBA 500 mg·L^(-1) treatment plot. Plots treated with IBA 1000 mg·L^(-1) and Rootone also showed high rooting rate at 91.7%. However, the IBA 2000 mg·L^(-1) treatment plot recorded only 8.3%, which was extremely low.
As for mortality ratio, IBA 2000 mg·L^(-1) treatment was highest at 66.7%.
Kelpak showed very high survival rate and all plots survived 100%.
Regarding the growth of roots, in the first round of experiment, the number of roots and root weight were high in plots treated with IBA 500, 1000 mg·L^(-1), while root length was high in Kelpak treatment plot. Root length of cuttings were longer when more diluted Kelpak was used. In the second round of experiment, the number of roots, root length and root weight were highest in the IBA 500 mg·L^(-1) treatment plot. Kelpak treatment did not show a statistically significant difference against its control plot Rootone treatment. The growth of new shoot was high in Kelpak treatment. Compared to IBA or Rootone treatment, a new shoot came at least 10 days earlier in the Kelpak treatment plot. As for growth in the latter period, new shoot length, growth of top part and the number of leaves were high in a plot treated with Kelpak 250 times diluted solution.
Based on the above- described results, in rose cuttings, Kelpak may be used as a rootng stimulants as rooting rate was 100%, roots were long and the growth of a new shoot was strong in the Kelpak treatment plot.
This study was conducted to examine the impact of rooting stimulants on rooting and growth of rose cuttings in order to raise the production efficiency of rose cuttings. Regarding rooting stimulants, 13 different treatments were used: Rootone; IBA 500, 1000, 2000 mg·L^(-1); Kelpak 1:1, 1:10, 1:50, 1:100, 1:250, 1:500, 1:1000, 1:2000 diluted solutions; and no treatment. As for sibstrate for cuttings, rockwool and coconut coir were used.
Experiments were conducted in two rounds. In the first experiment, the number of roots, root length and root weight were measured at 25 days after cuttings. Mortality rate was checked 35 days after cuttings. Then, 75 days after cuttings, growth of top part and photosynthesis were measured. In the second round of experiment, in order to check initial rooting status, callus formation ratio was surveyed 15 days after cuttings and the number of roots, root length, root weight, new shoot length, and rooting rate were surveyed at 20,25 and 35 days after cuttings.
Rooting ratio was outstanding at 100% in the Kelpak treatment plot and the IBA 500 mg·L^(-1) treatment plot. Plots treated with IBA 1000 mg·L^(-1) and Rootone also showed high rooting rate at 91.7%. However, the IBA 2000 mg·L^(-1) treatment plot recorded only 8.3%, which was extremely low.
As for mortality ratio, IBA 2000 mg·L^(-1) treatment was highest at 66.7%.
Kelpak showed very high survival rate and all plots survived 100%.
Regarding the growth of roots, in the first round of experiment, the number of roots and root weight were high in plots treated with IBA 500, 1000 mg·L^(-1), while root length was high in Kelpak treatment plot. Root length of cuttings were longer when more diluted Kelpak was used. In the second round of experiment, the number of roots, root length and root weight were highest in the IBA 500 mg·L^(-1) treatment plot. Kelpak treatment did not show a statistically significant difference against its control plot Rootone treatment. The growth of new shoot was high in Kelpak treatment. Compared to IBA or Rootone treatment, a new shoot came at least 10 days earlier in the Kelpak treatment plot. As for growth in the latter period, new shoot length, growth of top part and the number of leaves were high in a plot treated with Kelpak 250 times diluted solution.
Based on the above- described results, in rose cuttings, Kelpak may be used as a rootng stimulants as rooting rate was 100%, roots were long and the growth of a new shoot was strong in the Kelpak treatment plot.
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