遮荫对四季桂光合特性的影响

Effects Of Shading Treatment on the Photosynthesis in Osmanthus fragans var. Semperflorens

为科学合理地配置园林四季桂 ,对四季桂在不同光照下的光合特性进行了研究 .结果表明 :随着光照强度的减弱 ,其光合强度和叶片可溶性糖含量逐渐降低 ,叶片叶绿素含量上升 ,叶片颜色由淡变浓 .在两层遮荫条件下生长良好 ,观赏价值最高 .由此可见 ,四季桂属中性偏阴树 .

In order to scheme Osmanthus fragans var. Semperflorens in garden scientifically,the photosythesis of Osmanthus fragans var. Semperflorens of different shadings were studied.The results show that less light results in less photosynthesis intensity and less contents of sugar and more chlorophyll content;the color of the leaf turns dark green.Two large of gauzes promoted the growth and the worth of appreciation of Osmanthus fragans var. Semperflorens .According to the demand of light intension, O.fragans var. Semperflorens belongs to neutral partial negative tree.