光质对叠鞘石斛形态及生理指标的影响  

Effect of Light Quality on Morphological and Physiological Indexes of Dendrobium denneanum

作　　者：邓洁[1] 王刚[2] 姚晨 邢琦尧 谢婕 黄子榕 蒲尚饶 范益军[1] 罗傲雪[1] DENG Jie;WANG Gang;YAO Chen;XING Qiyao;XIE Jie;HUANG Zirong;PU Shangrao;FAN Yijun;LUO Aoxue(College of Landscape Architecture,Sichuan Agricultural University,Chengdu 610030,China;Collge of Forestry,Sichuan Agricultural University,Chengdu 610030)

机构地区：[1]四川农业大学风景园林学院,四川成都610030 [2]四川农业大学林学院,四川成都610030

出　　处：《四川林业科技》2022年第1期19-23,共5页Journal of Sichuan Forestry Science and Technology

基　　金：四川农业大学大学生创新训练计划项目(201910626100)。

摘　　要：以兰科植物叠鞘石斛为实验材料,通过研究光质对其形态及生理指标的影响,寻找提高叠鞘石斛观赏价值和经济价值的新方法。采用红蓝光搭配光质,处理组分别为T1组(红光:蓝光=3∶1)、T2组(红光:蓝光=1∶1)、T3组(红光:蓝光=1∶3),对照CK组为白光。每天照射2 h,照射7、14、21、28 d时分别取样检测。结果表明:(1)T1光质(红光:蓝光=3∶1)照射7 d时可有效增加叠鞘石斛茎长,照射21 d时可促进茎粗增加;(2)T2光质(红光:蓝光=1∶1)照射7 d时可促进茎长的增加;(3)T3光质(红光:蓝光=1∶3)照射可有效延长叠鞘石斛的花期,照射7 d时会有效增大叶绿素a、b含量,在21 d时会有效增大可溶性蛋白质的含量。采用红蓝光质按照不同配比照射,可有效调控叠鞘石斛的花期和生长,增加其观赏价值。In order to find a new method to improve the ornamental value and economic value of Dendrobium denneanum,Dendrobium denneanum was used as the experimental material to study the effect of light quality on its morphological and physiological indexes.Red and blue light was used in the experiment.The treatment groups were T1 group(red:blue=3∶1),T2 group(red:blue=1∶1),T3 group(red:blue=1∶3),and the control group was white light.All the treatments were irradiated for 2 hours every day,and samples were taken for detection at 7,14,21 and 28 days.The results showed out:(1)T1 light quality(red light:blue light=3∶1)could effectively increase the stem length of Dendrobium denneanum after 7 days of irradiation,and could promote the stem diameter after 21 days of irradiation;(2)T2 light quality(red light:blue light=1∶1)could promote the stem length after 7 days of irradiation;(3)T3 light quality(red light:blue light=1∶3)could effectively prolong the flowering period of Dendrobium denneanum,and could effectively increase the content of chlorophyll a and b at day 7th,while could effectively increase the content of soluble protein at day 21.The results indicated that different ratios of red and blue light irradiation could effectively regulate the flowering period and growth of Dendrobium denneanum and increase its ornamental value.

关 键 词：叠鞘石斛 光质 形态 生理 

分 类 号：S682.31[农业科学—观赏园艺]