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Parasitism of the root-lesion nematode Pratylenchus thornei on chickpea

AuthorsCastillo, Pablo ; Jiménez-Díaz, Rafael M. ; Gómez Barcina, Antonio; Vovlas, Nicola
Issue Date1995
PublisherBlackwell Publishing
CitationPlant pathology 44(4): 728-733 (1995)
AbstractPratylenchus thornei-chickpea interactions were investigated under controlled and fluctuating environmental conditions in the growth chamber, greenhouse and shadehouse. Under controlled conditions. P. thornei infected chickpea hnes 12071/10054 and P2245 and cultivars Andoum 1, JG62 and UC 27. Line P 2245 and cv. JG 62 were the most susceptible genotypes on the basis of root damage and nematode reproduction, but nematode infection did not significantly reduce root and shoot weights. Cultivars Andoum 1 and UC27 and line 12071/10054 showed the least root damage and nematode reproduction. Inoculation of cv. Andoum 1 with 2500, 5000 or lOOOO nematodes per plant in pots did not affect shoot weight, regardless ofthe conditions of water stress ofthe plants. However, root weight was significantly reduced by nematode infection in plants grown under water stress and fluctuating temperature conditions in the greenhouse, but was not affected by any other treatment. The nematode reproduction index was not affected by soil water content under shadehouse conditions, but was greater on plants watered to soil water-holding capacity than in water-stressed plants under greenhouse conditions. For both environments, the nematode reproduction index decreased when inoculum density was greater than 5000 nematodes per plant.
Publisher version (URL)http://dx.doi.org/10.1111/j.1365-3059.1995.tb01697.x
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