文献类型：期刊文献

中文题名：中国早期引种蓝花楹花期物候研究初报

英文题名：A Preliminary Study on Flowering Phenology of Early Introduced Jacaranda mimosifolia in China

作者：丘建煌[1,2] 张国武[1] 杨丽梅[3] 吕超群[4] 张沛健[1] 刘学锋[1] 陈银霞[5]

第一作者：丘建煌

机构：[1]中国林业科学研究院速生树木研究所,广东湛江524022;[2]广东海洋大学,广东湛江524088;[3]中国林业科学研究院热带林业实验中心,广西凭祥532600;[4]应急管理部南方航空护林总站西昌站,四川西昌615000;[5]江西省林业推广和宣传教育中心,江西南昌330033

年份：2022

卷号：39

期号：4

起止页码：35-42

中文期刊名：桉树科技

外文期刊名：Eucalypt Science & Technology

收录：CSTPCD

基金：中央级公益科研院所专项资金项目(CAFYBB2019MB004);广东省林业科技创新项目(2018KJCX024)。

语种：中文

中文关键词：蓝花楹;花期物候;地理气候

外文关键词：Jacaranda mimosifolia;florescence phenology;geographical climate

分类号：S685.99

摘要：蓝花楹是以观蓝紫色花系而著称的高大乔木园林景观树种。为探讨蓝花楹的花期物候变化规律,更好地服务于该树种的适应性选择等生产实践,对早期引种栽培在中国8省区17个地区的蓝花楹进行连续多年花期物候观测,并结合其所处地理气候环境进行相关性分析。结果表明:蓝花楹第一次开花花期为三月上旬至六月上旬,花期长普遍在30~75 d,盛花期长约15~45 d。栽植于不同地区的蓝花楹花期物候在开花时期、花期持续时间长短以及开花效果等方面均有较大差别。云南开远、蒙自、文山及四川西昌一带的蓝花楹较早进入盛花期,其中云南开远最早;四川成都、内江、宜宾一带,福建福州、江西等地的蓝花楹较晚进入盛花期,其中江西会昌最晚;盛花期开花效果以栽植在云南开远、蒙自、昆明、文山以及四川西昌等地区的蓝花楹表现最好,开花时叶片落尽。花期物候出现时间与经度、纬度均呈正相关,与海拔呈负相关;花期及盛花期的持续时间与日照时数均呈极显著正相关,与花期前积温、降雨量均呈负相关;不同年份上述各指标的相关显著性一致,但程度略有差异。蓝花楹的花期物候体现了较明显的地理气候变异规律。
Jacaranda mimosifolia is a famous ornamental tree producing blue violet flowers.In order to discuss the phenological change law of the blossom period of the jacaranda and better serve production practices such as the adaptive selection of the tree species,phenological observations of the blossom period of early introduced and cultivated jacaranda in 17 regions of 8 provinces in China was carried out for consecutive years.Correlation analyses were then conducted to examine these traits in relation to geographical and climatic environment.The results showed that the first blossom period of the jacaranda was from the first ten days of March to the first ten days of June,with the blossom period generally extending over 30~75 days,and the full blossom period extending over 15~45 days.The blossom phenology of the jacaranda planted in different areas differed to the blossom period,duration of blossom and blossom effect.The jacaranda in Kaiyuan,Mengzi,Wenshan of Yunnan and Xichang of Sichuan entered the blossom period earlier,with Kaiyuan in Yunnan being the earliest.The jacaranda in Chengdu,Neijiang,Yibin,Fujian,Fuzhou,Jiangxi and other places entered the blossom period later,among which Huichang in Jiangxi was the latest.The effect of blossom in full bloom period:the jacaranda planted in Kaiyuan,Mengzi,Kunming,Wenshan,Sichuan Xichang and other regions in Yunnan Province performed best and leaves fall out when flowering.The phenological occurrence time of blossom periods was positively correlated with longitude and latitude,and negatively correlated with altitude,while the duration of florescence and full florescence were significantly positively correlated with sunshine hours but negatively correlated with accumulated temperature and rainfall before florescence.The significance of the above correlations among indicators in different years was consistent,but the degree was slightly different.The phenology of the blossom period of the jacaranda shows an obvious variation law with geographical locality and climate.