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Acta Prataculturae Sinica ›› 2010, Vol. 19 ›› Issue (5): 57-62.

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Research on allelopathic effects of Allium macrostemon on three main weeds (Digitaria sanguinalis, Echinochloa crusgalli and Amaranthus retroflexus) in peanut fields

ZHANG Yue-li1,2,3, QIN Li-qin4, GAO Xing-xiang5, LI Mei5, LI Xin-guo1,2,3,
MENG Jing-jing1,2,3, WAN Shu-bo2,3   

  1. 1.High-Tech Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100,China;

    2.Key Laboratory for Genetic Improvement of Crop Animal and Poultry of Shandong Province,
    Jinan 250100,China;
    3.Key Laboratory of Crop Genetic Improvement and Biotechnology,
    Huanghuaihai, Ministry of Agriculture, Jinan 250100, China;
    4.College of Life Sciences,
    Shandong Agricultural University, Taian 271018,China;
    5.Institute of Plant Protection,
    Shandong Academy of Agricultural Sciences, Jinan 250100,China
  • Received:2009-10-30 Online:2010-05-25 Published:2010-10-20

Abstract: Allelopathic effects of aqueous extract from Allium macrostemon were tested in Petri-dishes. The extract strongly inhibited germination and seedling growth of Digitaria sanguinalis, Echinochloa crusgalli and Amaranthus retroflexus. D. sanguinalis and A. retroflexus were more sensitive to the extract than E. crusgalli. At 0.025 g/mL concentration, the germination rates of A. retroflexus, D. sanguinalis and E. crusgalli were 38.46%, 50.00% and 85.71%, respectively. On one seed, the germination speed was reflected in the germination rate, but was more sensitive to the extract. The roots were more strongly inhibited than seedling height at the same concentration.

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