Etiology and Management of Bacterial of Anthurium
By: Dhanya M K.
Contributor(s): Mary C A (Guide).
Material type:
BookPublisher: Vellayani Department of Plant Pathology, College of Agriculture 2000DDC classification: 632.3 Online resources: Click here to access online Dissertation note: MSc Abstract: Bacterial blight incited by Xanthomonas axonopodis pv. dieJJenbachiae
(Me Culloch and Pirone) Vauterin et al. (1995) is a serious disease of
anthurium (Anthurium andreanum Linden) causing heavy economic loss to
growers in Kerala.
The diseased plants showed both foliar and systemic infections. The
bacterium was a Gram negative, motile rod. Morphological, physiological and
biochemical characters of the six isolates were same except for some
characters like nature and rate of growth, virulence and hydrolysis of starch.
The bacterium inciting this disease was identified as Xanthomonas
axonopodis pv. dieffenbachiae based on morphological, physiological and
biochemical characters coupled with pathogenicity.
Potato Sucrose Agar was found to be the best medium for growth and
slime production of the bacterium.
Dieffenbachia sp., Philodendron oxycardium, Aglaonema robelinii,
Colocasia esculenta and Syngonium podophyllum were carriers of
Xanthomonas axonopodis pv. dieJJenbachiae. The pathogen survived In
infected plant debris kept in soil under glass house conditions and In
refrigerated conditions for about 45 days and in soil for 60 days.
Under in vitro evaluation, 100 ppm streptocycline and 0.3 per cent
captan were most effective in inhibiting the growth of the pathogen.
Under in vivo conditions, the relative efficiency of four ecofriendly
management practices namely the application of turmeric powder + sodium
bicarbonate, Pseudomonas jluorescens (proprietary product), neem oil and
cowdung extract at three different levels were compared with that of spraying
with 100 ppm streptocycline and 0.3 per cent captan. It was observed that the
use of 0.15 per cent turmeric powder + sodium bicarbonate (10 : 1 proportion)
was most effective and the extent of disease control achieved after a schedule
of five sprayings at one week interval was same as that of 100 ppm
streptocycline.
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Theses
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KAU Central Library, Thrissur Theses | 632.3 DHA/ET (Browse shelf) | Available | 171663 |
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MSc
Bacterial blight incited by Xanthomonas axonopodis pv. dieJJenbachiae
(Me Culloch and Pirone) Vauterin et al. (1995) is a serious disease of
anthurium (Anthurium andreanum Linden) causing heavy economic loss to
growers in Kerala.
The diseased plants showed both foliar and systemic infections. The
bacterium was a Gram negative, motile rod. Morphological, physiological and
biochemical characters of the six isolates were same except for some
characters like nature and rate of growth, virulence and hydrolysis of starch.
The bacterium inciting this disease was identified as Xanthomonas
axonopodis pv. dieffenbachiae based on morphological, physiological and
biochemical characters coupled with pathogenicity.
Potato Sucrose Agar was found to be the best medium for growth and
slime production of the bacterium.
Dieffenbachia sp., Philodendron oxycardium, Aglaonema robelinii,
Colocasia esculenta and Syngonium podophyllum were carriers of
Xanthomonas axonopodis pv. dieJJenbachiae. The pathogen survived In
infected plant debris kept in soil under glass house conditions and In
refrigerated conditions for about 45 days and in soil for 60 days.
Under in vitro evaluation, 100 ppm streptocycline and 0.3 per cent
captan were most effective in inhibiting the growth of the pathogen.
Under in vivo conditions, the relative efficiency of four ecofriendly
management practices namely the application of turmeric powder + sodium
bicarbonate, Pseudomonas jluorescens (proprietary product), neem oil and
cowdung extract at three different levels were compared with that of spraying
with 100 ppm streptocycline and 0.3 per cent captan. It was observed that the
use of 0.15 per cent turmeric powder + sodium bicarbonate (10 : 1 proportion)
was most effective and the extent of disease control achieved after a schedule
of five sprayings at one week interval was same as that of 100 ppm
streptocycline.
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