Effect of a plant growth promoting bacterium, an AM fungus and soil types on the morphometrics and reproduction of Meloidogyne javanica on tomato

The effects of a plant growth promoting bacterium Pseudomonas fluorescens, an AM fungus Glomus mosseae and different soil types (having a mixture of clay:sand into 4:0, 3:1, 2:2, 1:3 and 0:4) were studied on the growth of tomato plants and on the reproduction of Meloidogyne javanica and morphometric...

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Bibliographic Details
Published in:Applied soil ecology : a section of Agriculture, ecosystems & environment ecosystems & environment, 1998-05, Vol.8 (1), p.77-84
Main Authors: Siddiqui, Zaki A, Mahmood, Irshad
Format: Article
Language:English
Subjects:
CRECIMIENTO
CROISSANCE
Glomus
GLOMUS MOSSEAE
GROWTH
LYCOPERSICON ESCULENTUM
Meloidogyne
MELOIDOGYNE JAVANICA
Morphometrics
Pseudomonas
PSEUDOMONAS FLUORESCENS
SOIL TYPES
TIPOS DE SUELOS
Tomato
TYPE DE SOL
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Summary:The effects of a plant growth promoting bacterium Pseudomonas fluorescens, an AM fungus Glomus mosseae and different soil types (having a mixture of clay:sand into 4:0, 3:1, 2:2, 1:3 and 0:4) were studied on the growth of tomato plants and on the reproduction of Meloidogyne javanica and morphometrics of nematode females. Combination of clay and sand of 3:1 gave best plant growth response followed by combination of 4:0 and 2:2 of clay:sand. Use of G. mosseae or P. fluorescens in different soil types caused significant increase in plant growth except in plants grown in pure sand. Use of G. mosseae or P. fluorescens both in uninoculated and nematode inoculated plants caused almost similar increase in plant growth but the combined use of both organisms caused greater increase in plant growth than when used singly. Plants grown in pure sand had the least galling and nematode reproduction. Moreover, plants grown in a mixture of clay and sand of 1:3 supported highest galling and nematode reproduction, followed by 2:2 and 3:1 clay:sand ratio. Applications of G. mosseae or P. fluorescens caused reduction in galling, nematode reproduction and morphometric parameters of females. Combined use of both organisms caused higher reduction in galling, nematode reproduction and morphometrics than their individual application. All the parameters of morphometrics observed showed reduction in their size except stylet length and stylet knob width. AM colonization was best in plant roots grown in 3:1 clay:sand ratio and least when grown in pure sand.
ISSN:0929-1393
1873-0272
DOI:10.1016/S0929-1393(97)00061-9