白花泡桐不同种源的物候节律  

Phenological rhythm of different provenances of Paulownia fortune

作　　者：陈宜均 李婷 邓绍勇[1] 朱培林[1] 龚斌[1] 丁伟 李康琴[1] Chen Yijun;Li Ting;Deng Shaoyong;Zhu Peilin;Gong Bin;Ding Wei;Li Kangqin(Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China)

机构地区：[1]江西省林业科学院

出　　处：《南方林业科学》2019年第5期24-27,共4页South China Forestry Science

基　　金：江西省重点研发计划项目(项目编号：20161BBF60120);江西省财政林业专项(项目编号：2018521202)

摘　　要：对37个白花泡桐种源的开花期、落叶期等物候特征进行连续3年的系统观测,以期掌握白花泡桐各种源的生长节律,为白花泡桐种源选择、改良和栽培技术研究提供试验依据。结果表明:(1)白花泡桐种源的平均有效生长期为204 d,有效生长期变化幅度为193~212 d,浙江丽水种源有效生长期最长,贵州凯里种源有效生长期最短;(2)白花泡桐各种源花期较短,主要集中在3月26日-4月4日,最短10 d,最长21 d;(3)白花泡桐各种源的物候期与经纬度都没有显著的相关性,推测白花泡桐的生态适应性较宽,物候期受不同环境生态因子(温度、光照、土壤)的影响会大于不同的种源自身的地理种源变异规律。The phenological characteristics of flowering and deciduous periods of 37 species of Paulownia fortune were systematically observed for three consecutive years,in order to grasp the growth rhythm of various sources of P.fortune,and provide experimental basis for the study of provenance selection,improvement and cultivation techniques of P.fortune.The results showed that:(1)The average effective growth period of P.fortune provenance was 204 days,and the effective growth period ranged from 193 days to 212 days.The effective growth period of Lishui provenance in Zhejiang was the longest,and the shortest was Guizhou Kaili provenance.(2)The flowering period of various sources of P.fortune is relatively short,mainly concentrated on March 26-April 4,with a minimum of 10 days and a maximum of 21 days.(3)The phenological period of P.fortunei provenances has no significant correlation with longitude and latitude.It is speculated that the ecological adaptability of P.fortunei is wide.The phenological period is influenced more by different environmental and ecological factors(temperature,light,soil)than the Geographic species variation.

关 键 词：白花泡桐 物候节律 花期 种源 江西 

分 类 号：S792.43[农业科学—林木遗传育种]