NDLI: Vertical distribution of the plant-parasitic nematode, Meloidogyne chitwoodi, under field crops

Content Provider	Springer Nature Link
Author	Wesemael, Wim M. L. Moens, Maurice
Copyright Year	2007
Abstract	The root-knot nematode Meloidogyne chitwoodi is a severe pest on sandy soils in Belgium and causes quality damage to economically important crops such as carrot, potato and black salsify. Pre-planting soil sampling to detect infestations has proven useful to farmers when taking decisions on the crop rotation. To develop an adequate sampling strategy, the vertical distribution of M. chitwoodi was examined under summer barley, carrot, fodder beet, bean, marigold and black fallow on two fields with a sandy soil. Soil samples were collected at monthly intervals from April 2004 to April 2006. Cores were taken to a depth of 70 cm and split into 10 cm segments. Nematodes were extracted by zonal centrifugation. Fodder beet increased the population of M. chitwoodi immensely; carrot was also a good host. Barley was a moderate host and under bean and marigolds the population decreased. The relative distribution of M. chitwoodi over the different soil layers during two successive years was consistent in each field. The different successions with good, moderate and poor hosts did not influence this distribution significantly. A logistic model was fitted to the mean cumulative percentages of nematodes at increasing soil depth. Farmers are advised to take soil samples for detection of M. chitwoodi immediately after harvest, especially after crops with a long field period. Adapting the depth of the cores taken to the vertical distribution of the population can increase the chances of detection. Our results suggest that this distribution is persistent in crop rotations and depends on field characteristics.
Starting Page	249
Ending Page	257
Page Count	9
File Format	PDF
ISSN	09291873
Journal	European Journal of Plant Pathology
Volume Number	120
Issue Number	3
e-ISSN	15738469
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-09-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crop rotations Host plants Population dynamics Root-knot nematodes Soil sampling Life Sciences Agriculture Ecology Plant Sciences Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Plant Science Horticulture Agronomy and Crop Science

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