作 者：
李祖任;岳勇志;彭迪;王立峰;周小毛;柏连阳
单 位：
湖南省农业科学院湖南省农业生物技术研究所;杂草生物学及安全防控湖南省重点实验室;湖南农业大学植物保护学院
关键词：
龙葵提取物;植物源除草剂;稗草;菵草;种子萌发;幼苗生长
摘 要：
为了研发以龙葵醇提物为原料的植物源除草剂,采用营养液培养法研究了不同浓度的龙葵醇提物对稗草和菵草种子萌发及幼苗生长的影响。结果表明:1~2 g/L龙葵醇提物处理对稗草、菵草种子萌发及幼苗生长的抑制作用不显著,甚至1 g/L处理对稗草幼苗生长表现出一定的促进作用,但4~8 g/L处理对稗草和菵草的种子萌发及幼苗生长表现出显著或极显著的化感抑制作用;其中,龙葵提取液对菵草的抑制作用强于稗草;龙葵醇提物对稗草和菵草的氧化还原酶体系(CAT、SOD、POD)的活性影响随着浓度的增大呈先上升后下降的趋势。
译 名：
Influences of Solanum nigrum Extracts on Seedling and Seed of Echinochloa crusgalli and Beckmannia syzigachne
作 者：
LI Zu-ren;YUE Yong-zhi;PENG Di;WANG Li-feng;ZHOU Xiao-mao;BAI Lian-yang;Hunan Academy of Agricultural Sciences, Hunan Agricultural Biotechnology Research Institute;Hunan Provincial Key Laboratory for Biology and Control of Weeds;College of Plant Protection,Hunan Agricultural University;
关键词：
Solanum nigrum extract;;botanical herbicide;;Echinochloa crusgalli;;Beckmannia syzigachne;;seed germination;;seedling growth
摘 要：
In order to exploit bioherbicide from Solanum nigrum extracts, the effect of S. nigrum extracts on seedling and seed of Echinochloa crusgalli and Beckmannia syzigachne were tested under solution culture. The result indicated that the inhibition of S. nigrum extract was not notable for E. crusgalli and B.syzigachne seed at the concentration(from 1 to 2 g/L), and the higher concentrations were notable. S. nigrum extract promote the E. crusgalli and B. syzigachne seedling growth at the 1 g/L concentration, and the above concentrations of S. nigrum extract was remarkable inhibited the E. crusgalli and B. syzigachne seedling. Allelopathic effect on B. syzigachne is better than E. crusgalli. The activity of oxido-reductase(CAT, SOD, POD) of E. crusgalli and B.syzigachne increased at first and then decline with the increasing extract concentration.
