广西林业科学2018，Vol.47Issue(1)：24-28,5.
光质与光周期对多穗柯幼苗生长及光合参数的影响
Effect of Different Light Qualities and Photoperiods on Growth and Photosynthetic Characteristics of Lithocarpus polystachyus Seedling
摘要
Abstract
Experiments were conducted on 2-year-old cutting seedlings of Lithocarpus polystachyus with dif-ferent light qualities and photoperiods by the LED lighting system.Results showed that there were significant differences in leaf area,leaf length,leaf width,leaf number,seedling height increment and ground diame-ter increment(P<0.05),which indicated that different light qualities and photoperiods had effect on the leaf characteristics and seedling growth.Compared with the white light,blue light was beneficial to the growth of Lithocarpus polystachyus seedlings and the increase of leaf number,and the maximum net photosynthesis rate increased to 8.59 μmol/(m2·s).Red light was beneficial to promote the growth of the ground diameter.After long-day treatment,the number of leaves and height increased significantly and the photosynthesis rate was higher than that of control group,while the effective light intensity exceeded 400 μmol/(m2·s).On the other hand,after the short-day treatment,the number of leaves decreased significantly and the photosynthetic rate was lower than that of control group,while the effective light intensity exceeded 400 μmol/(m2·s).关键词
多穗柯/光质/光周期/叶片特征Key words
Lithocarpus polystachyus/light quality/photoperiod/leaf characteristics分类
农业科技引用本文复制引用
蓝金宣,黄晓露,李开祥,李宝财,陈金艳,王坤,梁文汇..光质与光周期对多穗柯幼苗生长及光合参数的影响[J].广西林业科学,2018,47(1):24-28,5.基金项目
广西自然科学基金项目(桂财教[2015]第139号) （桂财教[2015]第139号）
广西林业科技项目(桂林科字[2014]第28号) （桂林科字[2014]第28号）
广西科学研究与技术开发计划项目(桂科攻1598006-5-6) （桂科攻1598006-5-6）
广西林科院基本科研业务费专项(林科201402号) （林科201402号）
