八种草坪植物耐荫性的研究

用人工遮光方法，研究了8种草坪植物的耐荫性，结果表明8种草坪植物的耐荫性可划分为四类：第一类沿阶草，强耐荫；第二类马尼拉、高羊茅、早熟禾、较耐荫；第三类黑麦草、台湾草、狗牙根、中等耐荫；第四类地毯草，不耐荫。描述了8种草坪植物在不同光照条件下的生长表现。

STUDY ON SHADE-TOLERANCE CHARACTERISTICS OF EIGHE LAWN PLANTS

Observation and measurements were made of growth and chlorophyll content of Cynodon daceglon, Festuca arundinacea, Poa pratensis, Lolium perenne, Zoysia tenuifolla, Axonopus affinis, Zoysia matreua, and Ophiopogon japonicas potted under 0, 0.74%, 4.81%, 22.2% and 100% of full light. Three indexes were used to evaluate the shade tolerance characteristics of the eight lawn plants: i.e. growth state, chlorophyll content, ratio of chlorophyll a and chlorophyll b. The results showed that eight lawn plants can be divided into four groups: (1) Ophiopogon japonicas has strong shade tolerance; (2) Festuca arundinacea, Poa pratensis, and Zoysia matreua have relatively strong shade tolerance; (3) Lolium perenne, Zoysia tenuifolla, and Cynodon daceglon have middling strong shade tolerance; (4) Axonopus affinis has weak shade tolerance.