生态学杂志2013，Vol.32Issue(6)：1471-1475,5.
红光与远红光比值对温室切花菊花‘神马’花芽分化进程的影响
Effects of red and far-red light ratio on the flower bud differentiation of greenhouse cut chrysanthemum cultivar‘Jingba'
摘要
Abstract
An experiment with LED light source irradiation of 4 ratios (0.5,2.5,4.5,and 6.5) of red light (R:660±10 nm) to far-red light (FR:730±10 nm) was conducted to study the effects of red/far red light ratio (R/FR) on the flower bud differentiation,relative growth rate,and inflorescence diameter of Chrysanthemum morifolium cv.‘Jingba' In treatment R/FR=6.5,the duration needed by the ‘ Jingba' to complete its flower bud differentiation was the shortest,being shortened by 34 days as compared to treatment R/FR =0.5.The larger the R/FR,the higher the relative growth rate for the flower bud differentiation would be.When the flower bud differentiation completed,the relative growth rate in treatment R/FR =6.5 was as twice as that in treatment R/FR =0.5.Similar to the flower bud differentiation,the dimension of inflorescence diameter was in the order of treatment R/FR 6.5 ＞ R/FR 4.5 ＞ R/FR 2.5 ＞R/FR 0.5.This study indicated that the R/FR ratio of 6.5 could promote the chrysanthemum flower bud differentiation and the inflorescence diameter growth significantly.关键词
切花菊/R/FR/花芽分化/相对发育速率/花径Key words
cut chrysanthemum / R/FR / flower bud differentiation / relative growth rate / inflorescence diameter分类
农业科技引用本文复制引用
彭晓丹,杨再强,李伶俐,张继波..红光与远红光比值对温室切花菊花‘神马’花芽分化进程的影响[J].生态学杂志,2013,32(6):1471-1475,5.基金项目
国家自然科学基金项目(41075087)、公益(气象)行业科研专项(GYHY200906023)、公益(气象)行业科研专项(GYHY201006028)和江苏省科技支撑项目(社会发展)(BE2010734)资助. （41075087）
