光质对淫羊藿生长及有效成分积累的影响OA

Objective:To study the effects of different light quality on the growth of Epimedium brevicornu,photosynthetic pigment content and the content of active ingredients,and to screen the most suitable light quality for cultivating Epimedium brevicornu,so as to provide conditions for the subsequent imitation of wild cultivation.Methods:Using two-year-old Epimedium brevicornu as the test materi-al,the effects of transparent film(CK),yellow film,red film and blue film on the growth indexes,photosynthetic pigment content and fla-vonoids ingredient content of Epimedium brevicornu leaves were studied.Results:Yellow light could mostly significantly increase the leaf length,leaf width,leaf fresh weight and leaf dry weight of Epimedium brevicornu at each treatment time;Blue light could mostly signifi-cantly increase chlorophyll a,chlorophyll b,chlorophyll a+b and carotenoids contents;With the increase of treatment time,the total fla-vonoid content showed a trend of increasing and then decreasing,and the total flavonoid content was significantly higher under the most blue light treatment than the other treatments;The highest content of epimedin A,epimedin B and epimedin C was found in the first pe-riod under yellow light and middle period under red light,and the higher content of above three compounds was found in the later period under blue light treatment,and the highest content of icariin was found in blue light.Conclusion:Epimedium brevicornu can be covered with blue film or supplemented with blue light to increase the content of active ingredient components and chlorophyll content when cul-tivated,and covered with yellow film or supplemented with yellow light to promote leaf growth.