常春藤在室内生长适宜光照范围的研究

A study on the growth of Hedera helix in radiation (PAR) scope were conducted indoors

研究了常春藤 (Hederahelix)适宜生长的光照范围问题。根据光的分布 ,选择房间内具有代表性的光区进行栽培试验。在 1 8～ 2 8℃ ,RH31 %～ 70 %条件下。经栽培 80d后 ,用LI 640 0测定其不同光强下的光合特性 ,计算光补偿点、光饱和点、最大净光合速率。同时测定不同试验区的叶面积、叶片数的生长量。结果表明 :常春藤在 1 8～ 2 8℃及RH31 %～ 70 %室内条件下 ,光照为大于 3.1至小于 834.3μmol·m 2 ·s 1 ( 1 5 5～ 41 71 5lx)可以生长。

The studies on the photosynthetic characters and growth of Hedera helix in response to photosynthesis active radiation (PAR) were conducted indoors. The representative light area was selected as experimental area during the culture period of 80 days. The indoor environment conditions were 18～28℃ in temperature, 31%～70% in humidity. After 80 days, the photosynthesis characters of Hedera helix in different photosynthesis active radiation (PAR) were measured with LI-6400 apparatus. The light compensation point, light saturation point, and the maximum net photosynthesis rate were calculated. The increment of leaf area and leaf blade in different experiment areas were also measured. The results showed that the PAR scope for the growth of Hedera helix was 3.1～834.3 μmol·m -2·s -1 (155～41 715 lx).