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Effects of Cu on the Growth and Physiological Response of Lathyrus odoratus

LIU Rui   

  1. Jiangxi University of Finance and Economics Institute of Art Garden,Nanchang 330032,China
  • Received:2012-07-25 Published:2012-12-31

Abstract: Effects of Cu (0 - 100 mg /kg) on growth and some physiologica lindexes of Lathyrus odoratus seedlings were studied by soil culture method. The results show that seedling growth of odoratus L. were promoted under50 mg Cu treatments and inhibited as the Cu concentrations more than 50 mg /kg, and the dry weight of undergroundpart under 100 mg /kg Cu treatment decreased to 84% of control. photosynthetic pigment contents in the leaves decreased as the Cu concentrations more than 50 mg /kg. The MDA concentrations in underground parts of odoratus L.enhanced under 75 mg /kg Cu treatments and MDA concentrations in aboveground parts decreased as the rise of Culevels. The activities of peroxidase ( POD) of aboveground and underground parts increased first and then droppedas Cu concentration increased. Proline and ascorbic acid contents ofL. odoratus showed increase trend under Cutreatments. The results indicated that POD, proline and ascorbic acid in the odoratus L. played important role in theCu resistance, defense reactive oxygen species is significant role.

Key words: Copper ( Cu ), Lathyrus odoratus, Growth parameter, Physiological characters

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Cite this article

LIU Rui. Effects of Cu on the Growth and Physiological Response of Lathyrus odoratus[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.038.