| 广西园林菟丝子发生危害情况调查与分析 |
| |
| 引用本文： | 马跃峰,郭成林,马永林,覃建林,陆荣生,杜晓莉,黄旭光,罗恩波,陆仟,李刚,韦路易,杨思霞.广西园林菟丝子发生危害情况调查与分析[J].广西农业科学,2013(12):2001-2006. |
| |
| 作者姓名： | 马跃峰 郭成林 马永林 覃建林 陆荣生 杜晓莉 黄旭光 罗恩波 陆仟 李刚 韦路易 杨思霞 |
| |
| 作者单位： | [1]广西农业科学院植物保护研究所,南宁530007 [2]南宁市绿化工程管理处,南宁530011 |
| |
| 基金项目： | 国家科技部国际合作项目（2011DFB30040）;广西自然科学基金项目（桂科自08320102Z,桂科基0778006-10）;南宁市科技攻关项目（201106061D） |
| |
| 摘 要： | 【目的】明确广西园林植物种类及菟丝子寄主、种类和分布，掌握其发生危害规律，为园林菟丝子防控提供科学依据。【方法】2011-2013年，每年4-10月，以南宁市为中心选择16个有代表性市（县）进行园林树木及地被植物感染菟丝子实地调查，记录不同树木感染菟丝子种类、生育期、危害的植物学特征及程度，计算感染率和危害指数。【结果】调查鉴定广西园林树木88种，其中菟丝子寄主62种，发生率达70.45%，62种寄主分属39科，51属，其中桑科最多有6种，其次是豆科、大戟科各5种。广西分布有3种菟丝子，分别为日本菟丝子、中国菟丝子和大花菟丝子，还有一种无根藤，它们分别分布在16、9、7和5个市（县），寄主分别达到38、20、15、11种，分别占寄主的61.29%、32.25%、24.19%和17.74%。南宁市和防城港市菟丝子种类分布最多，3种菟丝子和无根藤均有感染。中国菟丝子主要以种子繁殖危害，每年3月下旬开始萌芽侵染为害，日本菟丝子、大花菟丝子及无根藤主要以藤茎繁殖危害，4月初开始生长，11月果实成熟。寄主危害指数较高的园林树木依次是八月桂、福建茶、龙船花、黄素梅、小叶榕、非洲茉莉，危害指数达4.01-5.48，属于易感树木。【结论】调查鉴定广西园林树木88种，其中菟丝子及无根藤寄主共62种，分属39科，51属；广西分布有3种菟丝子，分别为日本菟丝子、中国菟丝子、大花菟丝子，还有一种无根藤，其中日本菟丝子为优势种类，为重点防控对象。每年4-10月是菟丝子及无根藤主要侵染危害期，也是防除的重点时期。
|
| 关 键 词： | 园林植物 菟丝子 分布 寄主 感染率 危害指数 广西 |
Investigation and analysis on garden dodder damage situation in Guangxi |
| |
| MA Yue-feng,GUO Cheng-lin,MA Yong-lin,QIN Jian-lin.,LU Rong-sheng,DU Xiao-li,HUANG Xu-guang,LUO En-bo,LU Qian,LI Gang,WEI Lu-yi,YANG Si-xia.Investigation and analysis on garden dodder damage situation in Guangxi[J].Guangxi Agricultural Sciences,2013(12):2001-2006. |
| |
| Authors: | MA Yue-feng GUO Cheng-lin MA Yong-lin QIN Jian-lin LU Rong-sheng DU Xiao-li HUANG Xu-guang LUO En-bo LU Qian LI Gang WEI Lu-yi YANG Si-xia |
| |
| Institution: | 2 (lplant Protection Research Institute, Guangxi Academy of Agricultural Science, Nanning 530007, China; 2Nanning Green Project Management Office, Nanning 530011, China) |
| |
| Abstract: | 【Objective】The garden plant species, dodder hosts, dodder species and distribution were investigated in Guangxi to find out the occurrence regulation for future dodder prevention and control. 【Method】From 2011 to 2013, every April to October, 16 representative cities were chosen with Nanning as the center, garden trees and groundcover plants infected with dodder were investigated by recording dodder kinds, growth stage, phytology traits and situation, as well as calculating infection rate and hazard index. 【Result】The results showed that there were 88 garden plant species in Guangxi, 62 dodder hosts （Incidence rate： 70.45%）, belonging to 39 families and 51 genera, among which Moraceae was the most （6 cultivars） followed by Leguminosae and Euphorbiaceae （5 cultivars）. The dodder species were mainly Japanese dodder, Chinese dodder , Cuscuta reflexa and no root cane distributed in 16, 9, 7 and 5 cities （counties）, respectively. 38, 20, 15 and 11 hosts had the proportion of 61.29%, 32.25%, 24.19% and 17.74%. Nanning and Fangchenggang had the most dodder species with the presence of all the major kinds. Chinese dodder mainly endangered seed propagation, which affected buds at the late stage of every March. The other three kinds predominantly affected vine breeding, which started to grow in early April and matured in November. Hazard index order was Bayuegui, Fujian tea, dragon boat flower, Huangsumei, Flocculus banyan and African jasmine. Their hazard index was 5.48-4.01 indicating they belonged to the susceptible trees. 【Conclusion 】There were 88 species landscape plants identified in Guangxi with 62 dodder hosts belonging to 39 families and 51 genera. In Guangxi, there were Japanese dodder, Chinese dodder, Cuscuta reflexa and no root cane. Japanese dodder was the dominant type and the key control object. Every April to October was the main infection period, when proper prevention measures should be taken. |
| |
| Keywords: | landscape plant dodder distribution host infection rate hazard index Guangxi |
| 本文献已被 维普 等数据库收录！ |
|
