| 不同水平磷对磷饥饿墨兰生长发育及某些生理特性的影响 |
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| 引用本文： | 潘瑞炽,梁旭野.不同水平磷对磷饥饿墨兰生长发育及某些生理特性的影响[J].热带亚热带植物学报,1993(2). |
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| 作者姓名： | 潘瑞炽 梁旭野 |
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| 作者单位： | 华南师范大学国兰研究中心 广州510631
(潘瑞炽)，华南师范大学国兰研究中心 广州510631(梁旭野) |
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| 基金项目： | 广东省科委重点科技研究项目 |
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| 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.
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| 关 键 词： | 墨兰 磷水平 叶片生长 光合速率 呼吸速率 |
EFFECTS OF DIFFERENT PHOSPHORUS LEVELS ON GROWTH, DEVELOPMENT AND SOME PHYSIOLOGICAL CHARACTERISTICS IN CYMBIDIUM SINENSE FOLLOWING PHOSPHORUS STARVATION |
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| Pan Ruichi Liang Xuye.EFFECTS OF DIFFERENT PHOSPHORUS LEVELS ON GROWTH, DEVELOPMENT AND SOME PHYSIOLOGICAL CHARACTERISTICS IN CYMBIDIUM SINENSE FOLLOWING PHOSPHORUS STARVATION[J].Journal of Tropical and Subtropical Botany,1993(2). |
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| Authors: | Pan Ruichi Liang Xuye |
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| Abstract: | 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. |
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| Keywords: | Cymbidium sinense (Andr ) Willd Phosphorus level Leaf growth Photosynthetic rate Respiratory rate |
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