广西植物2011，Vol.31Issue(2)：222-226,5.DOI:10.3969/j.issn.1000-3142.2011.03.016
基质温度对三角梅插穗生根及其叶片光合作用的影响
Effects of media temperature on rooting and leaf photosynthesis of Bougainvillea glabra cuttings
摘要
Abstract
The effects of media temperature(18 ℃ ,20 ℃ ,25 ℃ ,30 ℃ and 33 ℃) on rooting and leaf photosynthesis of Bougainvillea glabra cuttings were measured under the condition of intelligent monitor and control. The results showed that with the increasing of media temperature,an increasing of the net photosynthesis rate,transpiration rate,stomatal conductance and intercellular CO2 concentration in B. glabra cuttings leaves, while the stomatal limitation decreased. The net photosynthesis rate was lower and there was no obvious differences of treatment 18 ℃ and 20 ℃.The differences of net photosynthesis rate among treatment 25 ℃ ,30 ℃ and 33 ℃ were obvious. The rooting number per cutting was less,and the root length was shorter,while the survival rate of the cutting was lower when the media temperature was lower than 20 ℃. When the media temperature was higher than 30 ℃, the fallen number and the basal sterns rotting rate of cutting increased,while the survival rate decreased. In summary,25-30 ℃ is the optimal media temperature for rooting of Bougainvillea glabra cuttings.关键词
基质温度/三角梅/插穗/光合作用/生根Key words
media temperature/ Bougainvillea glabra cutting/ photosynthesis/ rooting分类
农业科技引用本文复制引用
谢志南,钟赞华,赖瑞云,张雪芹,苏明华..基质温度对三角梅插穗生根及其叶片光合作用的影响[J].广西植物,2011,31(2):222-226,5.基金项目
福建省自然科学基金(2008J0052) （2008J0052）
厦门市科技计划项目(3502Z20072007) （3502Z20072007）
