弱光条件对红檵木叶片色素含量的影响  

Effect of weak light on pigment in leaves of Loropetalum Chinese Var.rubrum

作　　者：陈丽[1] 尹恒[1] 李炎林[1] 唐前瑞[1] 

机构地区：[1]湖南农业大学园艺园林学院,湖南长沙410128

出　　处：《信阳农业高等专科学校学报》2008年第3期118-120,共3页Journal of Xinyang Agricultural College

摘　　要：随着光照强度的降低,红檵木成熟叶中叶绿素a的含量上升,新叶的叶绿素a含量先上升后下降;叶绿素b含量都呈现先上升后下降的趋势;新叶中类胡萝卜素的含量先上升后下降,成熟叶的类胡萝卜素大体呈上升趋势;成熟叶的叶绿素含量大体上升,而新叶的叶绿素含量则先上升后下降。光照强度降至8000 lx的过程中,a/b值明显下降;花色素苷含量随光照强度的降低而降低。As photoperiod decreased, the chlorophyll a in the mature leaf content increased, but in the new leaves chlorophyll a content increased fhst , and then decreased; the chlorophyll b content increased first , and then decreased; In the new leaves the kind of anthocyanin content increased first , and then decreased, in the mature leaf , the anthocyanin inereaaed; The mature leaves＇ chlorophyll content increased roughly, but new leaves＇ chlorophyll content increased first , and then decreased. On the process of the photoperiod falls to 80001x, a/b drops obviously; The anthecyanin content decreased along with the strength of illumination decreased.

关 键 词：红花檵木 弱光条件 叶绿素 花色素苷 

分 类 号：S685.99[农业科学—观赏园艺] S687.9[农业科学—园艺学]