Effects of Meloidogyne graminicola populations on the yield and growth of four rice cultivars

In the first of the two experiments where four rice cultivars were inoculated with 10 and 15 populations of Meloidogyne graminicola, the yield of IR20 was reduced by 8 out of 10 populations of the rice root-knot nematode tested. Six populations reduced the yield of PSBRc 20. The yield of IR72 was no...

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Bibliographic Details
Published inPhilippine Journal of Crop Science (Philippines) Vol. 24; no. 1
Main Authors Soriano, I.R, Reversat, G. (International Rice Research Inst., Los Banos, Laguna (Philippines))
Format Journal Article
LanguageEnglish
Published 01.05.1999
Subjects
CROP YIELD
INOCULACION
INOCULATION
MELOIDOGYNE GRAMINICOLA
ORYZA SATIVA
RENDEMENT DES CULTURES
RENDIMIENTO DE CULTIVOS
VARIEDADES
VARIETE
VARIETIES
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Summary:In the first of the two experiments where four rice cultivars were inoculated with 10 and 15 populations of Meloidogyne graminicola, the yield of IR20 was reduced by 8 out of 10 populations of the rice root-knot nematode tested. Six populations reduced the yield of PSBRc 20. The yield of IR72 was not affected by the 10 populations. In the second experiment, all of the 15 populations tested reduced the yield of IR20. The yield of IR29 was reduced significantly by all the populations tested in both experiments. The population from Brassica chinensis (B8-2) reduced the yield of IR29 only. The GB-5 population from Allium sativum reduced the yield of IR29 and PSBRc 20. Four populations from rice (NE 147, NE 131, NE 105, and NE 114) reduced the yield of IR20 and IR29. The four varieties tested were considered susceptible to the rice root-knot nematode as all populations were able to reproduced on the four cultivars. However, IR72 and PSBRc 20 were tolerant.
Bibliography:1999101387
H10
ISSN:0115-463X