Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Physical Factors in Relation to Conidial Germination in Alternaria porri, the Incitant of Purple Blotch of Onion

양파검은무늬병균의 포자발아에 마치는 물리적 요인

  • Gupta, R.B.L. (Plant Pathology Laboratory, Agriculture Research Station, S.K.N. College of Agriculture) ;
  • Pathak, V.N. (Plant Pathology Laboratory, Agriculture Research Station, S.K.N. College of Agriculture) ;
  • Verma, O.P. (Plant Pathology Laboratory, Agriculture Research Station, S.K.N. College of Agriculture)
  • Published : 1985.11.30
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Abstract

Influence of temperature, relative humidity, spore washing and spore drying on conidial germination of Alternaria porri(Ell.) Cif. was studied. Maximum conidial germination occurred at 100% relative humidity prevailing for 6 hours or more at $25^{\circ}C$. Conidial germination decreased with increase in number of spore washings. Drying of conidia for more than half an hour caused significant decrease in germination. In all the experiments, conidial germinatio increased with increase in incubation period.

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