|Table of Contents|

Effect of Nitrogen Fertilizer on Leaf Physiological and Biochemical Traits of Black Soybean during Reproductive Stage(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年04期
Page:
623-626
Research Field:
Publishing date:

Info

Title:
Effect of Nitrogen Fertilizer on Leaf Physiological and Biochemical Traits of Black Soybean during Reproductive Stage
Author(s):
CHEN Zhen-wu; QIAN Lang; WANG Hai-ying; ZHANG Hui-jun
College of Agronomy，Shenyang Agricultural University，Shenyang 110866，Liaoning，China
Keywords:
Black soybean; Plant type; Nitrogen fertilizer; Photosynthesis characteristic; Protective enzymes activities
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.04.0623
Abstract:
Erect black soybean variety of Shenhei No.3 and semi-rampancy variety of Liaohei No.1 were used as materials.Four nitrogen fertilizer application levels,0 kg·hm-2(N0),45 kg·hm-2(N1),90 kg·hm-2(N2) and 90 kg·hm-2 plus leaf spraying 22.5 kg·hm-2(N3),were set.Photosynthetic traits of chlorophyll content(CC),net photosynthetic rate(Pn),transpiration rate(Tr),stomatal conductance (Cond) and intercellular carbondioxide concentration (Ci) as well as protective enzymes of superoxide dismutase(SOD),peroxidase (POD) and catalase (CAT) at reproductive stage were determined.The purpose of this study was to discuss the effects of different nitrogen fertilizer levels on physiological and biochemical characteristics in different black soybean varieties.Nitrogen treatment didn’t change the changing trend of the tested photosynthetic indexes,the CC，Pn，Tr，Cond and Ci of Liaohei No.1 were significantly higher than those of Shenhei No.3.CC and Pn varied significantly between nitrogen treatments,while no distinctive difference were found for Tr，Cond and Ci.With the increment of nitrogen amount,SOD,POD and CAT of both cultivar showed increasing trend.SOD,POD and CAT activity of Liaohei No.1 were higher than those of Shenhei No.3.In conclusion,N3 had more influences on photosynthetic traits,while N2 shows more effects on protective enzymes.Besides,Liaohei No.1 performed better than Shenhei No.3.

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Last Update: 2014-09-14