|Table of Contents|

Effects of Urea nitrogen on Growth and Physiological Characteristics of Gentiana rigescens Franch Seedlings in the Floating System(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年15期
Page:
162-165
Research Field:
Publishing date:

Info

Title:
Effects of Urea nitrogen on Growth and Physiological Characteristics of Gentiana rigescens Franch Seedlings in the Floating System
Author(s):
LI Hai-feng; ZHANG De-quan; DUAN Bao-zhong; YUAN Lang-bai
College of Pharmacy and Chemistry,Dali University,Dali,Yunan 671000
Keywords:
Gentiana rigescens Franch; floating; urea nitrogen; growth and development; physiological characteristics
PACS:
Q 945
DOI:
-
Abstract:
Taking the mature seeds of Gentiana rigescens Franch as materials,the effects of ureanitrogen on growth and physiological characteristics of Gentiana rigescens Franch seedlings in the floating system were explored by floating nursery law and plant physiology experimental method.The results showed that it would be beneficial to the growth of seedlings stem and leaf if the urea nitrogen concentration were in the range of 25~50 mg/L,and it would be beneficial to the root growth if the urea nitrogen concentration was 25 mg/L.At the same time,leaf chlorophyll content,NR activity,and root activity were significantly higher than those not treated with urea nitrogen or treated with other concentrations ureanitrogen (P<0.01).Compared with the control group,urea nitrogen concentration of 100 mg/L would inhibit significantly seedling growth,the leaf chlorophyll content and NR activity both decreased,and the root activity also decreased significantly.

References:

[1]中国科学院中国植物志编委会.中国植物志62卷[M].北京：科学出版社,1988:100-101.
[2]国家药典委员会.中华人民共和国药典一部[S].北京:化学工业出版社,2010:89.
[3]沈涛,金航,杨涛,等.不同产地野生滇龙胆中主要裂环烯醚萜类成分的含量比较[J].中国实验方剂学杂志,2011,17(13):70-73.
[4]李智敏,刘莉,李晚谊,等.滇龙胆的药用资源研究与开发进展[J].云南大学学报(自然科学版),2009,31(S1):485-487.
[5]王忠.植物生理学[M].北京:中国农业出版社,2003:84-85.
[6]彭细桥,吴建志,陆中山,等.我国烟草漂浮育苗技术应用现状、研究进展与发展方向[J].中国烟草学报,2010,16(3):90-94.
[7]东林,李海峰.植物激素对滇龙胆种子萌发的影响[J].安徽农业科学,2012,40(12):7100-7206.
[8]邹琦.植物生理生化实验指导[M].北京:中国农业出版社,1995.
[9]寿森炎,董伟敏,楼惠宁,等.氮素形态不同配比对黄瓜生长和性别分化的影响[J].园艺学报,1996,23(1):49-53.[10]习向银,陈益银,刘国顺,等.尿素态氮对烤烟漂浮育苗中营养生长和重量特性的影响[J].华北农业学报,2008,23(1):128-132.

Memo

Memo:
-
Last Update: 2014-08-13