Ethylene Evolution of Wheat and Barley Cultivars Differed in Plant Type and Growing Condition

맥류의 초형 및 재배조건에 따른 ETHYLENE의 생성량

Ethylene evolution of leaves was measured in the samples of barley and wheat grown in the various conditions and treatments. The older and stepped leaf of barley had tended to the tendency to contain more ethylene than the younger and sound leaf. Relatively high concentration of ethylene was evolved in the samples which the detecting time was delayed and so was in the samples incubated at high temperature. The higher evolution of ethylene was determined by the barley plant grown in the field and with compost application compared to the samples grown in the pot and with composite fertilizer application, however the flooding treatment resulted in decreasing ethylene evolution comparing to untreated barley and wheat. The prostrate type and higher chrolophyll content leaves of wheat appeared to produce more ethylene than erect and lower chrolophyll leaves did.

맥류의 생육과 Ethylene 대사와의 관계를 측정한 몇가지 결과를 소개하면 다음과 같다. 1. 보리 엽의 Ethylene 생성량은 하위엽이 상위엽보다 많고 답압을 한 것이 하지 않은 것보다 많았다. 2. 엽신절단후 시간이 경과함에 따라 Ethylene 생성량은 증가하였는데 pot에서 보다 포장에서 재배한 것이 많았고 절엽후 Incubation의 온도가 높을수록 많았으며 주간이 야간보다 많은 경향이었다. 3. 밀의 Ethylene 생성량은 초형이 직립형인 품종 보다 포복형인 품종일수록 많고 엽록색 함량이 적은 품종보다 많은 품종일수록 증가하였다. 4. 맥류엽의 Ethylene 생성량은 복합비료보다 퇴비를 시용한 것이 많았고 담수를 한 것은 하지 않은 것보다 저하하는 경향을 보였다.