草业科学2001，Vol.18Issue(2)：62-66,5.
三种草坪草净光合速率和蒸腾速率的日变化特点研究
A study on the diurnal variation characteristics of net photosynthesis rate and transpiration rate of three species of turfgrasses
丁小球 1胡玉佳 1王榕楷1
作者信息
- 1. 中山大学生命科学学院,广东广州 510275
- 折叠
摘要
Abstract
The diurnal variation characteristics of net photosynthesis rate and transpiration rate of Eremochloa ophiuroides, Zoysia tenuifolia and Axonopus compressus in the sunny day were studied. The results showed that the net photosynthesis rate diurnal variation curves of Eremochloa ophiuroides and Zoysia tenuifolia were double-peaked, while the curve of Axono-pus compressus was three-peaked. The peak values of three species of turfgrasses appeared in different times, with an obvious "sleep-at-noon" phenomenon. The size order of the average value of net photosynthesis rate diurnal variation was E. ophiuroides>A. compressus>E. ophiuroides. The transpiration rate diurnal variation curves of E. ophiuroides and Z. tenuifoli a were double-peaked, while the curve of A. compressus was single-peaked, and their peak value appeared in different times either. Neither of them had an obvious"sleep-at-noon" phe-nomenon. The size order of the average value of transpiration rate was Z. tenuifolia>A. Com-pressus>E. ophiuroides. The correlations between different ecological factors and the net photosynthesis rate transpiration rate of 3 species had large difference with each other, and so it did between the same ecological factor and the net photosynthesis rate or transpiration rate of different species.关键词
草坪草/净光合速率/蒸腾速率/日变化Key words
turfgrass/ net photosynthesis rate/ transpiration rate/ diurnal variation分类
农业科技引用本文复制引用
丁小球,胡玉佳,王榕楷..三种草坪草净光合速率和蒸腾速率的日变化特点研究[J].草业科学,2001,18(2):62-66,5.
