Article (Scientific journals)
Impact of intercropping aphid-resistant wheat cultivars with oilseed rape
Zhou, Haibo
2009In Acta Ecologica Sinica, 29, p. 186-191
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Keywords :
Intercropping
Abstract :
[en] The effects of intercropping of wheat cultivars and oilseed rape on the densities of wheat aphid, Sitobion avenae, and their arthropod natural enemies were evaluated. Three winter wheat cultivars with different resistant levels to S. avenae were used: `KOK¿ (high resistance), `Xiaobaidongmai¿ (low resistance) and`Hongmanghong¿ (susceptible). The results showed that the densities of S. avenae were significantly higher on the monoculture pattern than on either the 8-2 intercropping pattern (eight rows of wheat with two rows of oilseed rape) or the 8-4 intercropping pattern (eight rows of wheat with four rows of oilseed rape). The mean number of predators and the mummy rates of S. avenae were significantly higher in two intercropping patterns than those in the monoculture pattern. The densities of S. avenae, ladybeetles, and mummy rate of S. avenae were significantly different among different wheat cultivars. The highest densities of S. avenae and ladybeetles were found on wheat cultivar Hongmanghong. The lowest densities of S. avenae associated with high mummy rate of S. avenae were found on wheat cultivar Xiaobaidongmai. The results showed that wheat-oilseed rape intercropping conserved more predators and parasitoids than in wheat monoculture fields, and partial resistance of wheat cultivar Xiaobaidongmai had complementary or even synergistic effects on parasitoid of S. avenae.
Disciplines :
Entomology & pest control
Author, co-author :
Zhou, Haibo ;  Université de Liège - ULiège > Form. doct. sc. agro. & ingé. biol.
Language :
English
Title :
Impact of intercropping aphid-resistant wheat cultivars with oilseed rape
Publication date :
01 November 2009
Journal title :
Acta Ecologica Sinica
ISSN :
1872-2032
Publisher :
Elsevier, Netherlands
Volume :
29
Pages :
186-191
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 May 2011

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