| 化感物质对土壤脲酶活性的影响 |
| 摘要点击 1049 全文点击 1728 投稿时间：1997-08-25 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 化感物质 脲酶 土壤 刺激作用 |
| 英文关键词 allelochmicals uricase soil stimulation |
|
| 中文摘要 |
| 研究不同的化感物质FA,4-t-BA,BH的不同浓度及其混合物对土壤脲酶活性的影响。研究结果表明,3种化感物质对土壤脲酶活性均有一定的刺激作用,其中4-t-BA刺激作用最强,但持续时间短；BH的刺激作用弱,但持续时间长。不同化感物质对脲酶活性的最大刺激点随时间的不同而不同,其中4-t-BA的500mg·kg-1和BH的200mg·kg-1均在第7d,而FA的500mg·kg-1在第4d.各种化感物质混合后,对脲酶活性的刺激作用要强于单一化感物质的作用。 |
| 英文摘要 |
| Three allelochemicals such as ferulic acid(FA),benzoldehyde(BH)and 4-tert-bytylbanzoc acid (4-t-BA) at different concentrations of single and mixture have been investigated for their effects on uricase activity.The results showed some stimulating effects of allelochemicals studied on uricase activety.4-t-BA among those has more strong effects than others,but the effected time is shorter,and BH has a weak effect but a longer effected time.Allelopathic effects are dependant on the allelochemicals concentration and time of their influence.The strongest effects were 7th day and 4th day for 500mg·kg-1 of 4-t-BA,200mg·kg-1 of BH and 500mg·kg-1 of FA,respectively.The stimulation of mixture of allelochemicals is stronger than a single at same concentration. |
|
|
|
