7种观叶小盆栽植物的光合特性与耐阴性研究  

Photosynthesistic Characteristics and Shade Tolerance of Several Small Potted Ornamental Plants

作　　者：陆銮眉[1] 林金水[2] 陈金河[2] 

机构地区：[1]漳州师范学院生物科学与技术系,福建漳州363000 [2]福建省热带作物科学研究所,福建漳州363001

出　　处：《热带作物学报》2013年第4期732-737,共6页Chinese Journal of Tropical Crops

基　　金：福建省科技重大专项"漳浦出口花卉产业化关键技术示范"(No.2007SZ08010053);福建省科技创新平台建设项目(No.2008N2003)

摘　　要：研究了7种常见小盆栽植物的光合特性,以期为生产管理提供理论依据。通过测定供试植物叶片的形态特征、光合作用日变化和光响应曲线,并对测定结果进行方差分析和相关分析。结果表明:供试的7种植物总叶绿素(Chl)含量存在较大的差异,叶绿素a/叶绿素b值在1.66～2.10之间,均小于3;人参榕的净光合速率(Pn)与蒸腾速率(Tr)极显著地高于其它植物,白鹤芋、绿萝和咖啡树间的Pn差异不显著,而圆叶椒草和银后亮丝草的Pn与Tr均较低。相关性分析表明7种植物的Pn与胞间CO2浓度(Ci)呈极显著相关。综合各项指标表明供试的7种植物对弱光利用能力均较强。其中人参榕的耐阴能力最强,对光适应的生态幅较宽,既有较强的耐阴能力,又能适应较强的阳光辐射;圆叶椒草和银后亮丝草的耐阴能力相对较弱,但能更好地利用基质水分。The photosynthetic characteristics and shade tolerance,including morphological characteristics of plant leaves,diurnal variation of the photosynthesis and light response curve,of seven kinds of common small potted ornamental plants were studied.The results showed：The total chlorophyll content of the 7 tested species had a big difference with Chl a/Chl b value ranged between 1.66 and 2.10.Pn,Tr of Ficus microcarpa was significantly higher than other varieties,Pn of Spathiphyllumnb spfloribund,Epipremnum aureum and Coffea arabica were not significantly different,and Pn,Tr of Dieffenbachia amoena cv.camilla and Peperomia obtusifolia was significantly lower than other varieties.Correlation analysis showed that：Pn and Ci of the 7 ornamental species were significantly related.All results indicated that the 7 tested species had a strong ability to use and adapt to low light.Ficus microcarpa had a strong shade tolerance,a wide light ecological amplitude from,shade-tolerance to strong solar radiation.Peperomia obtusifolia and Dieffenbachia amoena cv.camilla had a relatively weak shade tolerance while.they could make better use of soil moisture.

关 键 词：7种观叶小盆栽植物 光合特性 叶绿素含量 耐阴性 

分 类 号：S68[农业科学—观赏园艺]