期刊论文

中文

西北植物学报

1000-4025

2000

20

3

484-488

10.3321/j.issn:1000-4025.2000.03.029

湖南省“星火西进工程”重点课题

本校为第一机构

利用定样平行配套观测方法,研究了龙须草叶片形态结构和光合、蒸腾等生理功能,结果表明:龙须草叶片呈长剑形,叶长为35-150cm,最长可达200cm以上,叶宽为0.19-0.48cm;功能叶结构具有典型的C_(4)“花环结构”;上表皮中具有十分发达的保护水分过度蒸腾的“泡状细胞”;上表皮气孔分布密度大于下表皮。

The morophological feastures,anatomical structures and physiological function (photosynthesis,transpiration,respiration,stomatic resistance and water use efficiency) of leaf in Eulaliopsis binata were studied during 1997-1998.The results were as follows:(1) The leaf of Eulaliopsis binata had a long sword blade with length variation from 35 cm to 150 cm and width variation from 0.19 cm to 0.48 cm.(2) The vein was composed of vascular bundle surrounded by the bast fibre and a great deal of fibre was found clos to the lower epidermis.The density o...