Record ID No. |
2779 |
Author(s) |
Owen K J., Clewett T G., Thompson J P. , 2010. |
Affiliation |
Agri-Science Queensland, Department of Employment, Economic Development and Innovation, Leslie Research Centre, PO Box 2282, Toowoomba, Qld 4350, Australia. Kirsty.Owen@deedi.qld.gov.au |
Title |
Pre-cropping with canola decreased Pratylenchus thornei populations, arbuscular mycorrhizal fungi, and yield of wheat |
Source. Vol.(no):Page |
Crop & Pasture Science. 61(5): 399-410p. |
Categories |
Mycorrhiza General |
Subjects |
Biological Interaction |
Sub-subjects |
Nematodes |
Host |
Triticum aestivum |
Organism |
Pratylenchus thornei, canola(Brassica napus var. oleifera), Nematoda |
Country |
Australia, |
Abstracts |
Root-lesion nematode (Pratylenchus thornei) significantly reduces wheat yields in the northern Australian grain region. Canola is thought to have a 'biofumigation' potential to control nematodes; therefore, a field experiment was designed to compare canola with other winter crops or clean-fallow for reducing P. thornei population densities and improving growth of P. thornei-intolerant wheat (cv. Batavia) in the following year. Immediately after harvest of the first-year crops, populations of P. thornei were lowest following various canola cultivars or clean-fallow (1957-5200 P. thornei/kg dry soil) and were highest following susceptible wheat cultivars (31033-41294/kg dry soil). Unexpectedly, at planting of the second-year wheat crop, nematode populations were at more uniform lower levels (P. thornei populations, but AM fungal-dependence of subsequent crops should be considered, particularly in the northern Australian grain region. |