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Frontiers of Agricultural Science and Engineering

2016, Volume 3,  Issue 2, Pages 137-146
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    Effectiveness of ten commercial maize cultivars in inducing Egyptian broomrape germination

    . College of Forestry, Northwest A&F University, Yangling 712100, China.. The State Key Laboratory of Soil Erosion and Dryland Farming, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China.. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.. College of Agriculture, Shanxi Agricultural University, Taigu 030801, China

    Accepted： 2016-05-26 Available online：2016-07-05
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    10.15302/J-FASE-2016098
    Cite this article
    Xiaoxin YE,Jinnan JIA,Yongqing MA,Yu AN,Shuqi DONG.Effectiveness of ten commercial maize cultivars in inducing Egyptian broomrape germination[J].Frontiers of Agricultural Science and Engineering,2016,3(2):137-146.

    Abstract

    Egyptian broomrape (EB), , is a devastating root parasite, causing enormous crop losses around the world. Maize has the potential to influence the growth of other plants through releasing certain allelochemicals and is able to induce germination of at least three broomrape species. To determine whether maize could be used as a trap crop for EB, 10 maize cultivars were tested for their ability to induce EB germination. The results showed that maize cultivars can induce EB germination, and that germination rates in a cut-root experiment and a hydroponic experiment were consistent. Maize cvs Changcheng 799 and Zhengdan 958 induced the highest EB germination rates, while cvs Luyu 13 and Zhengyu 203 were the least effective. These four maize cultivars were further studied in a pot experiment. Rhizosphere soil, rhizosphere soil extracts, root extracts and shoot extracts from these cultivars were all able to induce EB germination, with cv. Changcheng 799 inducing the highest germination rates. Root extracts generally induced higher germination rates than shoot extracts. It is suggested that Changcheng 799 could be planted as a trap crop for control of EB.

    Keywords

    allelopathy ; Egyptian broomrape ; maize ; seed germination ; trap crop
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