摘要
为研究泡核桃凋落叶对生菜(Lactuca sativa)、白菜(Brassica pekinensis)、菜心(Brassica chinensis)和辣椒(Capsicum annuum)4种蔬菜的化感综合效应,采用发芽试验,利用培养皿纸床法,研究泡核桃凋落叶不同浓度水浸提液对4种不同参试材料种子萌发及幼苗生长的影响。结果表明,4种参试材料对泡核桃叶化感作用的敏感性从强到弱依次为生菜>菜心>白菜>辣椒,对生菜的抑制作用最强(SE=-0.30),辣椒具有很好的适应性(SE=0.22);浸提液对种子的发芽指数影响最大,其次为发芽势,发芽率影响最小;在幼苗生长阶段,浸提液对地下部分根长影响最大(SE=-0.12),对地上部分影响相对较小,当浓度为40 g/L时,对根长均起到抑制作用。不同浓度泡核桃水浸提液对蔬菜种子的萌发和幼苗生长均呈现不同程度的促进和抑制作用。本研究结果为辣椒用于农林复合种植研究提供了理论依据和指导。
In order to study the allelopathic comprehensive effects of J.sigillata leaf litter on L.sativa,B.pekinensis,B.chinensis and C.annuum,an experiment was carried out to explore effects of leaf litter water extracts of J.sigillata in different concentrations on seed germination and seedling growth of four vegetable seeds by indoor germination test with culture dish and paper bed method.The results showed that the allelopathic sensitivity was in the order of L.sativa>B.chinensis>B.pekinensis>C.annuum.It had the strongest inhibitory effect on L.sativa(SE=-0.30),and C.annuum had a good adaptability(SE=0.22).At germination stage,the extract had the greatest impact on germination index,second on germination capacity,and least on germination rate.At seedling growth stage,the extract had the greatest effect on the root length of the underground part(SE=-0.12),and relatively small effect on the aboveground part.When concentration was 40g/L,it has an inhibitory effect on the root length.Different concentrations of J.sigillata water extracts showed different degrees of promotion and inhibition on seed germination and seedling growth of vegetable.The results provide a theoretical basis and guidance for application of C.annuum in agroforestry.
作者
李培
郑崇兰
龙丽
黄庆
刘永安
LI Pei;ZHENG Chonglan;LONG Li;HUANG Qing;LIU Yongan(Forestry and Grass Research Institute of Liangshan Yi Autonomous Prefecture,Xichang,Sichuan 615000,China;Zhanglin State-owned Forest Farm of Liangshan Yi Autonomous Prefecture,Xichang,Sichuan 615000,China;Sichuan Science and Technology Resource Sharing Service Platform of Wild Plants,Chengdu,Sichuan 610041,China)
出处
《农业研究与应用》
2022年第2期18-24,共7页
Agricultural Research and Application
基金
凉山州核桃复合种植技术研究与示范(16CX0021)。
关键词
泡核桃叶
水浸提液
化感作用
种子萌发
幼苗生长
J.sigillata leaf litter
water extracts
allelopathiy
seed germination
seedling growth
作者简介
李培(1989-),本科,农艺师,现主要从事作物栽培研究工作;通信作者:刘永安(1965-),博士,研究员,主要从事森林培育相关研究工作,E-mail:313695054@qq.com。
