摘要
通过对云南省农科院热带亚热带经济作物研究所科技园内胡椒园杂草种类调查,结果表明,该胡椒园内杂草有14科42种,外来入侵杂草有8科17种。从胡椒园杂草的田间均度、田间密度、田间频率和相对多度分析结果得出:该胡椒园主要杂草为马齿苋(Portulaca oleracea L.)、酢浆草(Oxalis corniculata L.)、白茅[Imperata cylindrica var.jnajor(Nees)C.E.Hubb]、胜红蓟(Ageratum conyzoides L)和反枝苋(Amaranthus retroflexus L.),其相对多度分别为35.51%、32.42%、31.62%、30.47%和27.18%。本研究对明确云南省农科院热经所科技园内胡椒园杂草种类、危害程度具有重要意义,同时为整个云南怒江干热河谷区胡椒园杂草危害情况调查以及外来入侵杂草的后续监测提供基础数据。
Investigation was conducted in the peper field in Institute of Tropical and Subtropical Cash Crops, YAAS. The results showed that 42 weeds of 14 families were discovered in the field. Among these species, 17 alien werw invasive weeds of 8 families. Out of which, the dominant weeds were Portulaca oleracea L., Oxalis corniculata L., Imperata cylindrica var.jnajor（Nees）C. E. Hubb and Ageratum conyzoides L., with 35.51, 32.42, 31.62, 30.47and 27.18% relative abundance, respectively by field all degrees, field density, field frequency and relatively abundance in peper field. The study had great significance in clarifying the weed species harmful to peper in Institute of Tropical and Subtropical Cash Crops, and also the weeds control in peper fields in Yunnan.
出处
《热带作物学报》
CSCD
北大核心
2014年第11期2134-2138,共5页
Chinese Journal of Tropical Crops
基金
农业部热带作物种质资源保护项目(No.14RZZY-45)
