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Numbers of Pratylenchus Spp., (Nematoda) in the Field On Winter Wheat in Different Cereal Rotations

Numbers of Pratylenchus Spp., (Nematoda) in the Field On Winter Wheat in Different Cereal Rotations NUMBERS OF PRATYLENCHUS SPP., (NEMATODA) IN THE FIELD ON WINTER WHEAT IN DIFFERENT CEREAL ROTATIONS BY D. ESMENJAUD*)1), R. RIVOAL2) and H. MARZIN3) 1) CNIH, B.P. 31, 06021 Nice, France; 2) INRA, Centre de Recherches de Rennes, Laboratoire de Zoologie, B.P. 29, 35650 Le Rheu, France; 3) GRISP, B.P. 29, 35650 Le Rheu, France Numbers of mixed Pratylenchus spp. communities, including P. thornei, P. neglectus, P. penetrans and P. crenatus, were followed during two years on winter wheat in three locations in northern France. Pratylenchus spp. were most numerous on wheat after maize, and wheat monocultures had intermediate numbers. Sugar beet, when integrated as the previous crop, decreased popula- tions of Pratylenchus; its effect was evident throughout the duration of the wheat crop, even on the 3rd wheat after sugar beet. The highest soil numbers occurred when wheat was at the 1-2- leaf stage. Most Pratylenchus were found in roots when wheat was beginning to tiller. In wheat/maize rotations, maize organic-matter restitution or soil compaction had little effect on Pratylenchus numbers. Wheat monoculture with straw ploughed into soil supported significantly fewer Pratylenchus than when straw was removed. Where Meloidogyne naasi was present, Pratylen- chus was almost undetectable in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Numbers of Pratylenchus Spp., (Nematoda) in the Field On Winter Wheat in Different Cereal Rotations

Esmenjaud, D.; Rivoal, R.; Marzin, H.
Nematologica , Volume 36 (1-4): 10 – Jan 1, 1990
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/002925990X00185
Publisher site
See Article on Publisher Site

Abstract

NUMBERS OF PRATYLENCHUS SPP., (NEMATODA) IN THE FIELD ON WINTER WHEAT IN DIFFERENT CEREAL ROTATIONS BY D. ESMENJAUD*)1), R. RIVOAL2) and H. MARZIN3) 1) CNIH, B.P. 31, 06021 Nice, France; 2) INRA, Centre de Recherches de Rennes, Laboratoire de Zoologie, B.P. 29, 35650 Le Rheu, France; 3) GRISP, B.P. 29, 35650 Le Rheu, France Numbers of mixed Pratylenchus spp. communities, including P. thornei, P. neglectus, P. penetrans and P. crenatus, were followed during two years on winter wheat in three locations in northern France. Pratylenchus spp. were most numerous on wheat after maize, and wheat monocultures had intermediate numbers. Sugar beet, when integrated as the previous crop, decreased popula- tions of Pratylenchus; its effect was evident throughout the duration of the wheat crop, even on the 3rd wheat after sugar beet. The highest soil numbers occurred when wheat was at the 1-2- leaf stage. Most Pratylenchus were found in roots when wheat was beginning to tiller. In wheat/maize rotations, maize organic-matter restitution or soil compaction had little effect on Pratylenchus numbers. Wheat monoculture with straw ploughed into soil supported significantly fewer Pratylenchus than when straw was removed. Where Meloidogyne naasi was present, Pratylen- chus was almost undetectable in

Journal

Nematologica – Brill

Published: Jan 1, 1990

Keywords: root-lesion nematode; sugar beet; Triticum aestivum; wheat; crop rotation; maize; Meloidogyne naasi

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