当前位置: 首页 > 文章 > 不同含氮量的尿素溶液对鳢肠种子萌发的影响 湖北农业科学 2012,51 (4) 92-94
Position: Home > Articles > Effects of Urea Solution with Different Nitrogen Content on the Seed Germination of Eclipta prostrata Hubei Agricultural Sciences 2012,51 (4) 92-94

不同含氮量的尿素溶液对鳢肠种子萌发的影响

作  者:
郑霞;张雷;赵亚庆;邵世光
单  位:
连云港师范高等专科学校生命科学系
关键词:
鳢肠;杂草;种子萌发;尿素
摘  要:
为研究尿素对农田杂草鳢肠(Eclipta prostrata L.)种子萌发的影响,用不同含氮量的尿素溶液处理鳢肠种子。结果表明,含氮量为0.2 g/L的尿素溶液对鳢肠种子的萌发具有促进作用;含氮量大于0.2g/L,随含氮量的增加鳢肠种子的发芽率呈下降趋势,但含氮量小于1.0 g/L的尿素溶液对鳢肠种子发芽率的影响不显著;综合发芽率、发芽势与发芽指数可见,含氮量小于1.0 g/L的尿素溶液对醴肠种子萌发影响不大,但含氮量大于1.0 g/L的尿素溶液对于鳢肠种子的萌发有明显的抑制作用。
译  名:
Effects of Urea Solution with Different Nitrogen Content on the Seed Germination of Eclipta prostrata
作  者:
ZHENG Xia,ZHANG Lei,ZHAO Yan-qing,SHAO Shi-guang (Department of Biology,Lianyungang Normal College,Lianyungang 222006,Jiangsu,China)
关键词:
Eclipta prostrate L.;weeds;seed germination;urea
摘  要:
In order to study the effects of urea on the seed germination of Eclipta prostrata L.,E.prostrata seeds were treated with different nitrogen content.Experimental results may be summarized as follows: When nitrogen content was 0.2 g/L,urea solution had certain promoting effect on the germination of Eclipta prostrata seeds.Furthermore,germination percentage decreased with the increase of nitrogen concentration above 0.2 g/L.When the urea content was below 1.0 g/L,there were no significant effects on the germination of Eclipta prostrata.But when the urea content was increased to more than 1.0 g/L,seed germination was obviously inhibited.

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