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The effect of temperature on hatching and penetration of chickpea roots by Pratylenchus thornei
Author(s) -
CASTILLO P.,
TRAPEROCASAS J. L.,
JIMENEZDIAZ R. M.
Publication year - 1996
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1046/j.1365-3059.1996.d01-112.x
Subject(s) - biology , hatching , inoculation , penetration (warfare) , cultivar , incubation , horticulture , agronomy , zoology , botany , engineering , biochemistry , operations research
Egg hatch of Pratylenchus thornei was influenced by temperature. It took place at all temperatures within the range 10–25°C and was optimal at 20°C. Root penetration increased steadily with increasing time of incubation up to the end of the experiment 11 days after inoculation. Temperature affected penetration rate in chickpea ( Cicer arietinum ) cultivars UC 27 and JG 62 but not in line P 2245, being significantly higher at 20–25°C than that at 15°C. At the end of the experiment, roots of line P 2245 held at 15°C contained more P. thornei than cultivars UC 27 and JG 62. No difference in percentage penetration among host genotypes was observed at 20 or 25°C. All migratory stages of P. thornei penetrated roots of chickpea from the first to 11th days after inoculation.