摘要
研究了不同环境条件下新几内亚凤仙 (Impatienshawkeri)的光合作用特性。结果表明其光补偿点在5 0 μmol/m2 ·s左右 ,饱和点在 70 0 μmol/m2 ·s左右 ;二氧化碳补偿点在 5 0～ 10 0 μl/L之间 ,在浓度为 10 0 0 μl/L时达到饱和 ;温度在 18～ 2 9℃时 ,新几内亚凤仙的光合作用速率达到最高 ,温度超过 30℃ ,光合作用受到抑制 ;在遮荫条件下 ,新几内亚凤仙对高温有较强的适应性 ,在高温高光照条件下 。
Photosynthesis rates of New Guinea Impatiens(Impatiens hawkeri) were measured under different compound environmental factors in this experiment. The result showed that the light compensation point was about 50μmol/m^2·s,the light saturation point was around 700μmol/m^2·s. The carbon dioxide compensation point was between 50～100μl/L,and at the point of 1000μl/L the Photosynthesis rate got its maximum. The proper temperature was between 18～29℃,and the photosynthesis would be restrained when the temperature exceeded 30℃. If shaded,the New Guinea Impatiens showed fairly good adaptability. It would cause to death when the high light combinated with high temperature.
出处
《莱阳农学院学报》
2004年第1期60-62,共3页
Journal of Laiyang Agricultural College
基金
国家林业局"948"项目"花卉高产栽培及花期调控技术引进"
项目编号 :1998-0 1。
关键词
新几内亚凤仙
光合作用
花卉
品种
净光合速率
光响应
温度响应
new guinea impatiens
photosynthesis
photosynthesis-light response
photosynthesis-carbon dioxide response
photosynthesis-temperature response
