作　　者： ; (梁旭野）;

机构地区： 华南师范大学

出　　处： 《热带亚热带植物学报》 1993年第1期71-77,共7页

摘　　要： 将磷饥饿的墨兰无土栽培在5个NaH_2PO_4水平的营养液中,结果表明:0.20mmol/L NaH_2PO_4有利于叶芽生长;当叶片张开后,1mmol/NaH_2PO_4促进光合作用和呼吸作用,叶片生长较快,褐斑病病斑较少,每株花数增多. Cymbidium sinerse(AndT. ) Willd. were cultivated hydroponically and used vermiculite as cultured substrate for several months in 5 levels of NaH2PO4 following phosphorus starvation treatment in order to find the most suitable concentration of phosphorus for their growth and development. The results indicated that NaH2PO4 at 0.20 mmol/L was the most beneficial to the growth of leaf bud. After leaf expanding, the optimum concentration for the growth of one-year-old leaves and for flowering was 1 mmol/L NaH2PO4. In addition, this treatment showed the best in promoting photosynthetic rate and respiratory rate, and in increasing the ability to resist Gloeosporium orchideorum disease.

关 键 词： 墨兰 叶 光合速率 磷 叶 生长 呼吸

领　　域： [农业科学] [农业科学]