Chin J Plan Ecolo ›› 2008, Vol. 32 ›› Issue (3): 673-680.doi: 10.3773/j.issn.1005-264x.2008.03.017

• Research Articles • Previous Articles     Next Articles

EFFECT OF WAVING-CANOPY CULTURAL TYPE ON ACTIVE OXYGEN AND MEMBRANE LIPID METABOLISM PEROXIDATION OF HIGH OIL SOYBEAN LEAVES

MIAO Bao-He1,2,3; LI Xiang-Dong1*; LIU Bo4; HE Qi-Ping5; ZHU Tao5; LIU Xing-Tan5; ZHU Qi-Yu2; QIAO Guang-Fa2; FAN Ting-An2;
CHEN Cheng-Jun2; DONG Qing-Yu1; YU Song-Lie1**   

  1. 1College of Agronomy, Shandong Agricultural University, State Key Laboratory of Crop Biology, Key Laboratory of Wheat Physiology and Genetics Improvement, Ministry of Agriculture, Taian, Shandong 271018, China; 2 Heze Academy of Agricultural Science, Heze, Shandong 274000, China; 3 State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; 4 Qingdao Agricultural University, Qingdao 266109, China; 5 Heze College, Heze, Shandong 274000, China
  • Online:2008-05-30 Published:2008-05-30
  • Contact: YU Song-Lie

Abstract: Aims The objective of our study was better understanding of increased yield and economic benefits of high oil soybean with
waving-canopy cultural type.
Methods We used the high-oil soybean (Glycine max cv. Ludou9) and studied the effects of waving-canopy cultural type on
active oxygen and membrane lipid metabolism peroxidation in its leaves in field experiments and laboratory analyses during
2005-2006. 
Important findings The average content of soluble protein and soluble sugar was 1.56 and 3.82 mg?g-1 greater in the waving-
canopy groups compared to CK (0. 034% and 7.18%, respectively). Their contents increased 1.35% and 48.41% at podding and
flowering growth stages, respectively, with all differences being statistically significant. Changes in the content of
soluble protein and soluble sugar were much more favorable to C, N metabolism, and coordination of the source, storage and
flow and metabolism of C was more meliorated and greater than that of N. Average activities of peroxidase (POD) increased by
20.13%, most increased by 46.53% at podding growth stages, and the difference was statistically significant. It was the key
protective enzyme that had more effects than superoxide dismutase (SOD) and catalase (CAT). The average activities of SOD and
CAT increased by 2.28% and 0.48%, respectively, while malondialdehype (MDA) content declined, and the ability for improvement
against active oxygen increased and senility occurred slowly. POD, SOD and CAT all had the same trends, the activity of SOD
appeared earlier than that of CAT and POD, and POD appeared lastly, i.e., these three enzymes had different effects at
different growth stages. Therefore, this cultural type significantly affected the active oxygen and membrane lipid metabolism
peroxidation of soybean, and it was much more favorable for the high oil soybean to gain high yield, fine quality and
economic benefit.

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