Experimental Study on the adaptability of Ground Cover Plants Under Sunlight Condition

Abstract

To assess the of shade on ground cover plants, some samples were tested using relative light intensities of 100%, 50%, 10%, 10%, 0.1%. Also, physioligical reaction of pachysandra terminaris Sied. et Zucc.(green leaf) and Pachysandra terminaris variegata (variegated leaf) to light intensity was tested by measuring the rate of photosynthesis. From these experiments, the optimum relative light intensity for maximum growth area were found to be as folloes:
(1) Leucothoe catesbaei A. Gray ‘Rainbow.’ Pachysandra terminaris (green leaf and variegated leaf): 50%, and 10%.(2) Farfugium japonicum (green leaf and variegated leaf), Rhododendron indicum Sweet, Passiflora carerulea L.: 100%, and 50%.(3) Gelsemium sempervirens Ait, Bigunonia capreolata L., Sedum mexicanum Britton, and Clematis armandi Franch: 100%, 50%, and 10%.(4) It was also found that: Hedera canariensis variegata quickly responds to changes in light intensity.
The photosynthetic rate of Farfugium japonicum (green leaf) is about twice the rate of Farfugium japonicum (variegated leaf).