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Reaction of Pigeonpea Cultivars and Germplasm Accessions to the Root-knot Nematode, Meloidogyne javanica

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Relation http://oar.icrisat.org/2068/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2619564/
JA 1570
 
Title Reaction of Pigeonpea Cultivars and Germplasm Accessions to the Root-knot Nematode, Meloidogyne javanica
 
Creator Sharma, S B
Mohiuddin, M
Jain, K C
Remanandan, P
 
Subject Pigeonpea
 
Description Meloidogynejavanica is an important nematode pest of pigeonpea. Thirty-four pigeonpea
cuhivars and 227 germplasm accessions were evaluated for resistance to M. javanica based on number
of galls, egg masses, size of galls, and area of root covered with galls. Galls were not formed on
75% of the cuhivars, and no egg masses were observed on the roots of four cuhivars (UPAS 120, Pant
A3, CO 1, and BDN 2); however, shoot mass of 64% of the cuhivars was reduced by M.javanica. Pant
A3, ANM 504, and BDN 2 were identified as highly resistant to M. javanica. Plant weight of these
cultivars was not reduced (P = 0.05) in the nematode-infested soil. Cuhivars with low gall and egg
mass ratings and significantly reduced vegetative biomass in nematode-infested soil were considered
to have low tolerance to the nematode. Galls and egg masses were found on all the germplasm
accessions; galls were usually more common than egg masses. None of the germplasm accessions
were resistant to M. javanica, but 33 accessions were moderately resistant. Large variations in gall
number, gall size, and egg mass number were observed. ICP 24 and ICP 99, two moderately resistant
accessions, manifested low plant-to-plant variation.
 
Publisher Society of Nematologists
 
Date 1994
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/2068/1/JouOfNem26_4S_644-652_1994.pdf
Sharma, S B and Mohiuddin, M and Jain, K C and Remanandan, P (1994) Reaction of Pigeonpea Cultivars and Germplasm Accessions to the Root-knot Nematode, Meloidogyne javanica. Journal of Nematology , 26 (4S). pp. 644-652. ISSN 0022-300X