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Hatching of Globodera pallida juveniles by diffusate of potato genotypes, differing in tolerance to G. pallida
Author(s) -
ARNTZEN F K,
VISSER J H M,
HOOGENDOORN J
Publication year - 1993
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1993.tb04075.x
Subject(s) - biology , hatching , globodera pallida , genotype , potato cyst nematode , horticulture , globodera rostochiensis , solanaceae , botany , agronomy , zoology , nematode , ecology , genetics , gene
Summary Hatching induced by root diffusate, obtained from various potato genotypes, and by standard potato root diffusate, was determined in vitro. The used potato genotypes differed considerably in tolerance to Globodera pallida. A three parameter logistic model was used to describe the numbers of hatched juveniles in relation to time of exposure to root diffusate. Clear differences in hatching characteristics between genotypes were found. Some tolerant genotypes induced hatching of G. pallida juveniles relatively slowly, compared to intolerant genotypes. Other tolerant genotypes, however, induced hatching as fast as intolerant genotypes, and no significant correlation between hatching parameters and tolerance was found.