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春蘭과 寒蘭의 花盆裁培에 있어 근권온도가 생육에 미치는 영향
이훙우,소인섭 제주대학교 아열대농업연구소 2000 亞熱帶農業硏究 Vol.17 No.-
This experiments were conducted to examine the growth response as resulted by differences of root zone area temperature with varied pots on the Cymbidium kanran and C. virescens during hot season(Jun.∼Sep.). Whereas Root zone temperature in plastic pot by 1.3mm thickness were more sensitive at areal temperature, the range of areal to root zone temperature were changed slowly in clay pot by 6.0 mm thickness. The root zone temperature in 3 kinds pot be tested were changed a little in areal temperature at the 25℃ below, otherwise the higher the areal temperature increased, the more the difference of root zone temperature among 3 kinds pot changed in 3 kinds pot changed. In the growth of Cymbidium virescens cultivated in plastic pot, there was a excessive growth of roots, while the growth of shoots was so poor that sixty percent of seedlings were killed. The growth of roots was reduced in clay pot compare with plastic pot, that showed a good balance between top to root. In this case, the only ten percent of seedlings were killed. The different type among the 3 kinds pot did not show the growth of shoots in Cymbidium kanran, but the growth in clay pot was good relatively. In the growth of roots cultivated in plastic and raxo pot, the number of roots was a little but the length of them was long. In clay pot, there was a large number of roots, but the length of them was short, which had effect on a good T/R ratio.
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