琅琊山3种野生花境植物的耐荫性研究

Preliminary study of shade tolerance of 3 flower border plants in Langya Mountain

以琅琊山优良观赏花境植物桔梗、白鲜、诸葛菜为试验材料,研究了全光照、遮光50%、遮光80%等3种不同光照条件下,测定其形态指标和光合生理指标的变化。结果表明:桔梗适宜栽培于全光照的环境中;白鲜能够充分利用弱光并具有较强的耐荫性;诸葛菜喜适度遮光,但在阳光下也能正常生长,对光能的利用范围较宽。

The shade tolerance of Platycodon grandiforus、Dictamnus dasycarps and Orychophragmus violaceus in Langya Montain are studied.3 levels of light transmission rate of full light、50%shadeing and 80%shadeing are carried out in the experiment.Morphological indicators,physiological indicators are measured.The results show that Platycodon grandiforus is suitable for culivation in full light environment,Dictamnus dasycarps is suitable for planting in shade-tolerant environment,Orychophragmus violaceus prefers a moderate sun-shading environment,but it can still grow normally in the sun,the light adaptation range is wide.