云南农业大学学报2012，Vol.27Issue(5)：740-745,6.DOI:10.3969/j.issn.1004-390X(n).2012.05.021
不同栽培基质对碧玉兰光响应特性的影响
Studies on Photosynthetic Response of Cymbidium lowianum of Various Media
摘要
Abstract
The photosynthetic characteristics of Cymbidium lowianum selected for medium formula were measured with the Li-6400 portable photosynthesis system and the new light-response model by YE[1] was applied to fit the measured data reasonably on the photosynthetic light - response curve of various medium formula. The results showed that various medium formula had different photosynthetic characteristics. The maximum photosynthetic net rate (Pmax) , light saturation point (LSP) , apparent quantum yield (AQY) , apparent carboxylation efficiency (ACE) in M3 (shredded coconut) , M7 [ alnus bark; peat; shredded coconut; pear bark = 1:1:2:1 (volume ratio) ] were higher those of than treatments that the other. Furthermore, The water use efficiency ( WUE) of M3, M7 was higher than the other because of stomatal limiting value in other medium formula than in M3, M7. The results indicated that M3, M7 showed higher ability of utilizing low light and WUE, so M3, M7 formula was the best medium for soilless culture of pot C. lowianum plants.关键词
碧玉兰/基质/光响应曲线Key words
Cymbidium lowianum/ medium formula/ photosynthetic response curves分类
农业科技引用本文复制引用
郭红,李枝林,王有国..不同栽培基质对碧玉兰光响应特性的影响[J].云南农业大学学报,2012,27(5):740-745,6.基金项目
云南省科技厅项目(2009BB013) （2009BB013）
云南省教育厅项目(09Y0195) （09Y0195）
云南省教育厅科学研究基金项目(2010J042). （2010J042）
