当前位置： SCI文献检索 > ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY期刊下所有文献 > Application of ethylene diurea (EDU) in assessing the response of a tropical soybean cultivar to ambient O₃: nitrogen metabolism, antioxidants, reproductive development and yield.

Application of ethylene diurea (EDU) in assessing the response of a tropical soybean cultivar to ambient O₃: nitrogen metabolism, antioxidants, reproductive development and yield.

Abstract：

:The present study deals with assessment of response of a tropical soybean cultivar to O3 in relation to photosynthetic pigments, chlorophyll fluorescence kinetics, antioxidative capacity, N assimilation enzymes, metabolites, growth and yield using ethylene diurea (EDU) given as a soil drench (400) ppm at an interval of 10 days after germination up to maturity. Mean O3 concentration was 42 ppb and accumulated threshold above 40 ppb (AOT 40) was 9.07 ppm h. Lipid peroxidation and total phenolics reduced, while increases in activities of antioxidative and nitrogen assimilation enzymes, ascorbic acid, protein, photosynthetic pigments, Fv/Fm ratio, number of leaves, flowers, pods, branches and yield attributes were found in EDU treated plants. EDU alleviated the negative effects of O3 by enhancing the first line of defense against ROS and protecting N assimilation enzymes at flowering and maintaining adequate supply of photosynthates to developing pods during pod filling stage. EDU provided maximum protection between flowering to pod filling stage.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Rai R,Agrawal M,Kumar Choudhary K,Agrawal SB,Emberson L,Büker P

doi

10.1016/j.ecoenv.2014.10.031

subject

Has Abstract

pub_date

2015-02-01 00:00:00

pages

29-38

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(14)00497-7

journal_volume

112

pub_type

杂志文章

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