摘要
百喜草光合速率日变化曲线呈"单峰型",其它3种暖季型草坪草光合速率日变化曲线均为"双峰型",有明显的"午休"现象,日平均光合速率百喜草>假俭草>普通狗牙根>中华结缕草。中华结缕草蒸腾速率日变化曲线呈"单峰型",其它3种暖季型草坪草蒸腾速率日变化曲线均为"双峰型",日平均蒸腾速率百喜草>普通狗牙根>假俭草>中华结缕草,"午休"现象不明显。不同生态因子对四种暖季型草坪草的光合速率、蒸腾速率影响不同。
The net photosynthesis rate diurnal variation curves of Paspalum notatum was single-peaked ,while the curve of other three warm-season turfgrass were double-peaked, with an obvious ＂sleep-at-noon＂ phenomenon. The size order of the average value of net photosynthesis rote diurnal variation was Paspalum notatum〉 Eremochloa ophiuroide〉 Cynodon dactylon〉 Zoysia sinica .The transpiration rate diurnal variation curve of Zoysia sinica was single-peaked, while the curve of other three warm-season turfgrass were double-peaked,with an unobvious ＂sleep-at-noon＂ phenomenon. The size order of the average value of transpiration rate diurnal variation was Paspalum notatum〉 Cynodon dactylon 〉 Eremochloa ophiuroide 〉 Zoysia sinica. The correlations between different ecological factors and the Pn , ET of 4 warm-season turfgrass had large difference with each other.
出处
《河南林业科技》
2008年第1期13-15,共3页
Journal of Henan Forestry Science and Technology
