|
Properly adjustable installations are required for attaining leaf temperature to meet the optimal growth of Cymbidium goeringii. It seems quite necessary to have some wind-blowing systems for consistent supply of the wind speed, together with proper shading set-ups to facilitate the suitable and economically feasible environments for the orchid growing. In order to overcome irrational environments in the common Cymbidium goeringii houses in Korea (the summer hot and winter cold weather) and maintain the suitable temperature for growth in terms of the leaf temperature, successful practices for the air movement or wind blowing must be accordingly considered to satisfy the management of orchid culture. PE film enclosed chamber of high temperatures more than 40℃ average and maximum light intensity of 80,000 lx resulted in decrease in growth for the number of leaves and shoots produced, and showed rather poor root appearances of C. goeringii as leaf chlorosis, rot, and soft-rot which are regarded as certain physiological damages. On the other hand, the partial enclosure of 75% shading which resulted in showing lower temperature than the air (lower than 30℃, light intensity of 7,000 lx at most) produced healthy looking roots with greater growth in the number of leaves, leaf length, shoot and root length than in the other environments. The partial enclosure with 75% shading showed best results for dry weight, chlorophyll content, and total carbohydrate of C. goeringii. Maintaining suitable temperature for growing is always necessary to expect the best floricultural results.
|