摘要
研究了观叶植物长心叶蔓绿绒的光合特性。结果表明，该植物属于典型的荫生植物，单位叶重的叶绿素含量较低，叶绿素ａ／ｂ比值较低。通过测定光合速率对光强的响应，应用计算机模拟求得：光补偿点为４３１７μｍｏｌ·ｍ－２·ｓ－１，光饱合点为６２６９８μｍｏｌ·ｍ２·ｓ－１，最大光合速率为５３６８μｍｏｌ·ｍ－２·ｓ－１。
Photosynthesis of Philodendron erubesceus “Green Emerald” at different leaf positions were studied. The results showed that the photosynthetic rate and chlorophyll content per gram of fresh leaf weight were highest at the middle leaf position and lowest at the upper leaf position. The chlorophyll a/b ratio was low .According to the curve of photosynthetic rate vs. photon flux density, it was found that the light compensation point was 43.17 μmol ·m -2 ·s -1 and the light saturation point was 626.98 μmol·m -2 ·s -1 . The highest photosynthetic rate of middle position leaf was 5.368 μmol·m -2 ·s -1
出处
《华南农业大学学报》
CAS
CSCD
1996年第4期68-70,共3页
Journal of South China Agricultural University
关键词
观叶植物
长心叶蔓绿绒
光合特性
ornamental plant
Philodendron erubescens
photosynthetic characteristics
