|Table of Contents|

Effects of Top-dressing Nitrogen on Protective Enzymes of Soybean Leaves from Different Regions(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年05期
Page:
833-836
Research Field:
Publishing date:

Info

Title:
Effects of Top-dressing Nitrogen on Protective Enzymes of Soybean Leaves from Different Regions
Author(s):
ZHANG Rui-peng1; TONG Bin2; FU Lian-shun1; YANG De-zhong1; XIE Fu-ti3
1.Tieling Academy of Agricultural Sciences，Tieling 112616，Liaoning；
2.Liaoning Vocational College，Tieling 112001，Liaoning；
3.Agronomy College of Shenyang Agricultural University，Shenyang 110161，Liaoning，China
Keywords:
Soybean; Nitrogen; SOD; POD; CAT
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.05.0833
Abstract:
Nitrogen is very important for soybean growth.It is controversy whether additional nitrogen fertilizer needed or not in soybean production as soybean rhizobium can fix nitrogen.The experiment was carried out by using twelve soybean cultivars from different regions.And the cultivars were divided into three groups：current Ohio cultivar，current Liaoning cultivar and old Liaoning cultivar.Urea fertilizer (0，100，200 kg.ha-1) was top-dressed at soybean seedling stage.The activity of SOD，POD and CAT，three protective enzymes of soybean leaves at blooming，podding and grain filling were measured.Under 100 kg.ha-1nitrogen fertilizer treatment，the SOD activity of current Ohio cultivar and old Liaoning cultivar was increased at blooming stage，while SOD activity of current Liaoning cultivar and old Liaoning cultivar was increased at podding stage.The SOD activity showed increasing trend with the level of nitrogen fertilizer for current Liaoning cultivar at blooming stage，and current Ohio cultivar at podding stage.The POD and CAT activity of the three group soybean cultivar increased with the level of nitrogen fertilizer ascending at blooming stage.The CAT activity of three groups soybean cultivar improved in the treatment of 100 kg.ha-1urea fertilizer than that of control at grain filling stage.Results suggest that applying 100 kg.ha-1urea fertilizer by top-dressing can improve protective enzymes activity of leaves for different soybeans.

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Last Update: 2014-09-15