摘要
[目的]探究几种常见菊科绿化植物的光合、蒸腾特性与抗旱性关系的比较。[方法]测量常见菊科小丽花、矮翠菊、黄晶菊与金盏菊的光合、蒸腾等生理特性,对其抗旱能力做出详细分析。[结果]对比3种双峰曲线绿化植物,小丽花的蒸腾速率日平均值最低,其净光合速率与蒸腾速率的比值(Pn/Tr)最高,其次为矮翠菊、而金盏菊Pn/Tr的值最低。气孔导度反映了气孔开张程度,小丽花、矮翠菊与金盏菊都在上午、下午出现2个峰值,但小丽花的第1个峰值出现在12:00。[结论]小丽花在参试绿化菊科植物中的抗旱能力最强。
[Objective] The research aimed to discuss relation of photosynthesis and transpiration to drought resistance among several ordinary feverfew greening plant, [Method] The physiological properties such as photosynthesis and transpiration of and feverfew such as Dahlia hybrid, Callistephus chinensis, Chrysanthemum mu 1 ticaule and Calendula offcinali and their abihty of drought resistance were analyzed in detail. [ Result ] Comparison on 3 kinds of greening plants with double curve showed that D. hybrida had lowest daily averages of transpiration rate and highest ratio of photosynthesis rate to net transpiration rate （ Pn/Tr ）, followed by C, chinensis and C, offcinalis was had lowest Pn/Tr value. The stoma conductance reflected the degree of stoma open and D, hybrida, C, chinensis and C, offcinalis all showed 2 peaks in a, m, and p, m, but D. hybrida had its first peak appeared on 12：00. [Conclusion] The ability of drought resistance of D. hybrida was strongest among the tested greening feverfew.
出处
《安徽农业科学》
CAS
北大核心
2008年第1期125-126,134,共3页
Journal of Anhui Agricultural Sciences
关键词
菊科植物
光合作用
蒸腾作用
抗旱能力
Feverfew
Photosynthesis
Transpiration
Resistance of drought
