Effects of light intensity on the growth of Begonia cucullata and B.wallichiana
In order to understand the performance and light requirement of ornamental begonias cultured in room and horticultural facilities such as shade house,the growth difference of Begonia cucullata and B. wallichiana was investigated in room cultivation under different artificial LED light intensities,using the potted seedlings as materials.The results showed that the highest plant height of B.cucullata appeared at 2 000 lx,while the stem diameter and branch number reached the highest at 2 500 lx.As light intensity further increased,no significant changes of these three indexes were observed between treatments.The plant height and branch number of B.wallichiana reached the highest at 2 000 lx,but the highest value of stem diameter appeared at 2 500 lx. The leaf thickness,fresh and dry weight of aboveground part,stomata density,longitudinal length of stomata,and the content of chlorophyll a and b of B.cucullata reached the highest at 3 000 lx,while the highest values of these indexes except chlorophyll b of B.wallichiana appeared at 2 500 lx.In this study,the best light intensity at low cost for B.wallichiana and B.cucullata was about 2 500 lx and 3 000 lx,respectively.Therefore,these two begonias are suitable for indoor cultivation under artificial light conditions.
Cultivation and productionBegonia cucullataBegonia wallichianaLight intensityArtificial LED light
国家科技期刊平台
NSTL
万方数据
维普
