Agricultural Science Digest

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Agricultural Science Digest, volume 29 issue 1 (march 2009) : 12-15

EFFECT OF SPORE CONCENTRATION, LIGHT AND RELATIVE HUMIDITY ON SPORE GERMINATION AND GERM TUBE GROWTH OF CORYNESPORA CASSIICOLA (BERK. AND CURT.) WEI

G. Bindu Madhavi, K.V.M. Krishna Murthy1
1Regional Agricultural Research Station, Lam, Guntur-522 034, India

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Cite article:- Madhavi Bindu G., Murthy1 Krishna K.V.M. (2024). EFFECT OF SPORE CONCENTRATION, LIGHT AND RELATIVE HUMIDITY ON SPORE GERMINATION AND GERM TUBE GROWTH OF CORYNESPORA CASSIICOLA (BERK. AND CURT.) WEI. Agricultural Science Digest. 29(1): 12-15. doi: .

ABSTRACT

Maximum spore germination of Corynespora cassiicola was obtained with the spore
concentration of 125 spores/ml. In general spore germination increases with the decrease
of spore concentration. Incubation of spores under alternate darkness and light resulted in
maximum spore germination (91.2%) and germ tube growth (131.3 μm) followed by
incubation of spores in continuous light and continuous darkness. Spores germinated over
a range of 75-100% relative humidity and maximum spore germination (95.5%) and germ
tube growth (187 μm) was observed at 95 % relative humidity.

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