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Effects of Elevated Ozone Concentration on Soybean Photosynthesis and Yield(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年04期
Page:
632-635
Research Field:
Publishing date:

Info

Title:
Effects of Elevated Ozone Concentration on Soybean Photosynthesis and Yield
Author(s):
JIN Dong-yanZHAO Tian-hongFU YuSUN Jia-weiHUANG Shuang
College of Agronomy,Shenyang Agricultural University,Shenyang 110161,Liaoning,China
Keywords:
.Elevated ozoneSoybeanPhotosynthesisYield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.04.0632
Abstract:
In recent years,the elevated ozone has some significant effects on plant photosynthesis,respiration,water availability and so on.In this paper,the effects of the elevated ozone concentrations on soybean photosynthesis and yield were studied in use of open-top chambers.Photosynthetic traits of Pn,Gs,Ci,Trand contents of Chla,Chlb,Chl(a+b) and Chla/b were determined.The results showed that Pn reduced significantly(P<0.01),Gs,Ci and Trascended firstly and declined following,the contents of Chla,Chlb,Chl(a+b) and Chla/b of soybean leaves under elevated ozone (110 nmol.mol-1) were lower than that of control.The decrease of 100-seed weight of soybean was not significant(P>0.05),but the decrease of grain weight per plant and grains per plant was significant(P<0.01).It indicates that elevated ozone has more negative influence to the soybean,which reduces the soybean photosynthesis intensity and the amount of flowers and inhibits the process of pollen fertilization,thus reduces the yield on soybean

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Last Update: 2014-09-21