Mature plant and tissue resistance in the groundnut-peanut bud necrosis virus system |
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| Authors: | A A M Buiel J E Parlevliet |
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| Institution: | (1) Crop Protection Division, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) Asia Center, 502 324 Patancheru, Andhra Pradesh, India;(2) Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, 6700 AJ Wageningen, The Netherlands |
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| Abstract: | Summary Leaves and plants of different ages of a susceptible and two resistant groundnut genotypes were mechanically inoculated with peanut bud necrosis virus, and the percentage of plants with systemic symptoms (incidence) and the incubation period were determined. The incidence decreased sharply in all three genotypes with the age of the inoculated leaves and plants. The incubation period increased with the age of leaves and plants. Apparently, only young tissue of young plants is susceptible, while mature tissue and plants are highly resistant. This mature tissue and plant resistance occurs irrespective of the susceptibility level of the genotype to peanut bud necrosis virus, however, it develops earlier in the resistant than in the susceptible genotypes.Abbreviations IP50
incubation period
- PBNV
peanut bud necrosis virus
- TSWV
tomato spotted wilt virus |
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| Keywords: | Arachis hypogaea L groundnut incidence incubation period mature plant resistance peanut bud necrosis virus tomato spotted wilt virus |
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