Expression of Resistance to Meloidogyne arenaria in Arachis batizocoi and A. cardenasii

Nelson, S.C. and Starr, J.L. and Simpson, C.E. (1990) Expression of Resistance to Meloidogyne arenaria in Arachis batizocoi and A. cardenasii. Journal of Nematology, 22 (2). pp. 242-244.

[img] PDF - Published Version
Restricted to ICRISAT researchers only

Abstract

Development of M. arenaria on A. batizocoi was slower that it was on A. hypogaea, with 10% of the population in the advanced J2 stage at 7 days after inoculation, compared with 21% on A. hypogaea. Little development of the nematode occurred on A. cardenasii with less than 5% of the population developed to the advanced J2 stage at 18 days after inoculation. The resistance of A. cardenasii appears to be of the 'hypersensitive response' type, likely to be governed by relatively few genes and easy to manipulate in a breeding programme. In contrast, the resistance of A. batizocoi is of the 'rate-reducing' type, possibly conditioned by a larger number of genes and therefore may be more difficult to manipulate. Both of the Arachis species can be crossed with A. hypogaea to produce fertile, interspecific hybrids.

Item Type: Article
Additional Information: SNNigam Collection
Uncontrolled Keywords: Arachis spp., Meloidogyne arenaria, nematode development, peanut, resistance, root-knot
Author Affiliation: Department of Plant Pathology and Microbiology, Texas Agricultural Experiment Station, College Station, TX 77843, USA
Subjects: Plant Protection
Crop Improvement
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 03 Apr 2013 10:25
Last Modified: 03 Apr 2013 10:25
Official URL: http://journals.fcla.edu/jon/article/view/66166
URI: http://eprints.icrisat.ac.in/id/eprint/10101

Actions (login required)

View Item View Item