Abstract:
ABSTRACT
The effects of the visible light namely white, NUV, blue including dark condition was
evaluated on seed germination, mycelial radial growth, and conidia production of
wheat blast pathogen Magnaporthe oryzae triticum (MoT) on three wheat varieties
namely BARI Gom-26, BARI Gom-28 and Prodip. The seed germination, number
of conidia per seed, number of conidia per panicle of this plant pathogenic fungus was
significantly differed among these light treatments. MoT produced significantly more
conidia when the fungus grew under White, NUV and Blue lights. MoT produced more
conidia on BARI Gom-26 and BARI Gom-28 compared to Prodip variety. Blue light
produced a greater number of conidia per rachis and per panicle where white light
enhanced to produce a greater number of conidia per seed. BARI Gom-28 variety
produced a greater number of conidia on rachis, seed and panicle. Whether the number
of conidia counted on rachis, seed and panicle are less produced on Prodip variety.
Blue×BARI Gom-28 and Dark×BARI Gom-28 resulted highest seed germination,
whether the number of conidia per rachis and per panicle was higher only in the
interaction effect of blue light and BARI Gom-28 variety. No significant difference of
conidia production per seed was obtained in the interaction effect of White×BARI
Gom-26, White×BARI Gom-28 and Blue×BARI Gom-28. The number of conidia per
rachis and per panicle was comparatively lower in dark light and Prodip variety, where
the number of conidia per seed was lower for both interaction effect of NUV×Prodip
and Dark×Prodip treatment combination. MoT was grown on oat meal agar medium
(OMA) in the White, NUV, Blue light and Dark condition. Radial mycelial growth
was significantly higher under Blue light and comparatively lower in White light
condition.
Description:
A Thesis
Submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
PLANT PATHOLOGY
SEMESTER: JANUARY-JUNE, 2021
