ACTA AGRICULTURAE BOREALI-SINICA ›› 2010, Vol. 25 ›› Issue (1): 141-146. doi: 10.7668/hbnxb.2010.01.028

Special Issue: Corn Tomato

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Effect of on Photosynthesis and Activity of Antioxidant Enzyme of the Tomato Seeding under Autotoxicity Stress and Alleviation by Carbonized Maize Cob Application

LI Liang-liang11,2, 21, LI Tian-lai11, ZHANG En-ping11, ZHANG Wen-bo11   

  1. 1. College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China;
    2. Analaysis Center, Shenyang Agricultural University, Shenyang 110866, China
  • Received:2009-12-08 Published:2010-02-28

Abstract: We examined the way which alleviates autotoxicity in tomato.Tomato seedlings were transplanted in perlite as growth substrate.Decomposed tomato root solution(DS) was added to Hoagland solution with or without the addition of activated charcoal or carbonized maize cob.Biomass,photosynthesis and antioxidant enzymes activity of tomato seedlings were systematically investigated.Results showed that DS suppressed the biomass,photosynthesis and chlorophyll contents of tomato seedlings.At the same time the activities of POD,CAT in leaf were increased firstly,then decreased and the MDA content was increased by the treatment of DS.DS-induced growth inhibition and physiological changes,however,were greatly alleviated by application of carbonized maize cob and activated carbon.Similar to activated carbon,carbonized corn cob could alleviate the DS induced inhibition on the growth of tomato seedlings.Carbonized corn cob can be used to prevent the plants from monocropping obstacles.

Key words: Tomato, Autotoxicity, Activated carbon, Carbonized maize cob

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Cite this article

LI Liang-liang1,2,LI Tian-lai1,ZHANG En-ping1,ZHANG Wen-bo1,YI Ning-ning1. Effect of on Photosynthesis and Activity of Antioxidant Enzyme of the Tomato Seeding under Autotoxicity Stress and Alleviation by Carbonized Maize Cob Application[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(1): 141-146. doi: 10.7668/hbnxb.2010.01.028.

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