A bacterium is devoid of
1.Chlorophyll
2.Well defined nucleus
3.Cell Wall
4.None
Posted Date:-2021-06-21 10:41:40
A virus particle with both nucleic acid and protein coat is called as
1.Virion
2.Viriod
3.Capsid
4.All above
Posted Date:-2021-06-21 10:41:40
Agallol is used for
1.Seed treatment
2.Soil treatment
3.Crop spray
4.Aerial spray
Posted Date:-2021-06-21 10:41:40
Agar-agar is produced from which of the following ?
1.Nostoc
2.Macrocrocystis
3.Gelidium
4.Oscillatortia
Posted Date:-2021-06-21 10:41:40
Alternate host of black stem rust of wheat
1.Mohania
2.Thalictrum
3.Barberry
4.All above
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Anterior tinsel flagellum is characteristics of
1.Chytridiomycetes
2.Hypochytridiomycetes
3.None of these
4.A and B
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Association of fungi with roots of higher plants is known as
1.Lichen
2.Mycorrhiza
3.Ascolichen
4.Basidiolichen
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Bacterial cell surrounded by which of the following flagella?
1.Monotrichous
2.Lophotrichous
3.Amphitrichous
4.Peritrichous
Posted Date:-2021-06-21 10:41:40
Bacterial leaf blight of rice caused by Xanthomonaso ryzae can be identified by
1.Wilting of the plant
2.Yellowing of leaves
3.Ooze test
4.Defoliation
Posted Date:-2021-06-21 10:41:40
Bengal famine was caused due to which of the following?
1.Phytophthora infestans
2.Drechslera oryzae
3.Puccinia graminis tritici
4.Heterodera avenage
Posted Date:-2021-06-21 10:41:40
Black stem rust of wheat caused by which among the following?
1.Puccinia graminis tritici
2.Puccinia recondita
3.Puccinia striformis
4.Ustilagotritici
Posted Date:-2021-06-21 10:41:40
Bordeaux mixture was discovered by P.A. Millardet of France during the year 1882 following his chance observation of farmers practice for protection against
1.Plasmopara viticola on grapevine
2.Uncinula nectar on grapevine
3.Podosphaera leucotricha on apple
4.Venturia inequalis on apple
Posted Date:-2021-06-21 10:41:40
Botulism is caused by which species
1.Bacillus
2.Pseudomonas
3.Agrobacterium
4.Clostridium
Posted Date:-2021-06-21 10:41:40
Brassicol is fungicide
1.Murcurious
2.Sulphur
3.Cu
4.Miscellaneous
Posted Date:-2021-06-21 10:41:40
Brown spot of maize is caused by which among the following ?
1.Sclerospora sorghi
2.Physoderus zeamaydis
3.Alternaria solani
4.Cercospora perfonats
Posted Date:-2021-06-21 10:41:40
By 1857, Barkley and Schacht discovered root knot nematodes and cyst nematode in which of the following?
1.Sweet sorghum
2.Sugarcane
3.Potato
4.Sugarbeet
Posted Date:-2021-06-21 10:41:40
Carborundum powder is
1.Silicon carbide
2.Aluminium oxide
3.Diatomaceous earth
4.Calcium carbonate
Posted Date:-2021-06-21 10:41:40
Coffee rust is caused by
1.Uromyces hobsoni
2.Hemileia vastatrix
3.Cronartium ribicola
4.Ravenelia-emblicae
Posted Date:-2021-06-21 10:41:40
Conidia and sporangia are the spores produced by
1.Bacteria
2.Viruses
3.Fungi
4.Phanerogams
Posted Date:-2021-06-21 10:41:40
Crystalization of viruses has done by
1.Mayer
2.Stanley
3.Iwanowski
4.Bejerinck
Posted Date:-2021-06-21 10:41:40
Cysts are formed by
1.Meloidogyne
2.Aphelenchoides
3.Heterodera
4.None of the above
Posted Date:-2021-06-21 10:41:40
Death of tissue in virus infected plant described as
1.Mottling
2.Mosaic
3.Necrosis
4.Curling
Posted Date:-2021-06-21 10:41:40
Didelphic means nematodes with which of the following ?
1.One ovary
2.Two ovaries
3.Three ovaries
4.None
Posted Date:-2021-06-21 10:41:40
Disease symptoms known as phyllidy in sesamum are caused by
1.Bacterium
2.Fungus
3.MLO
4.Virus
Posted Date:-2021-06-21 10:41:40
Dithane M-45 is a
1.Bactericide
2.Insecticide
3.Fungicide
4.Nematicide
Posted Date:-2021-06-21 10:41:40
Domestic quarantine exists on
1.Rice blast
2.Red rot of sugarcano
3.Wart of potato
4.Run of wheat
Posted Date:-2021-06-21 10:41:40
Downy mildew of maize is caused by
1.Peronosclerspora sacchari
2.Peronospora triognella
3.Sclerospora graminicola
4.Sclerospora sacchari
Posted Date:-2021-06-21 10:41:40
Exclusion of plant disease by legislation is known as
1.Disease resistance
2.Plant quarantine
3.Biological control of plant
4.Cultural control
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First of all microscope discovered by
1.Needham
2.Spallanzani
3.Leeuwenhoeck
4.Koch
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First plant parasitic bacteria was reported by
1.T.J. Burrill
2.Needham
3.Louis Pasteur
4.Leeuwenhoek
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First plant parasitic nematode discovered was
1.Meloidogyne
2.Heterodera
3.Anguina
4.Globodera
Posted Date:-2021-06-21 10:41:40
First plant parasitic nematode was reported by
1.Needham
2.Spallanzani
3.Cobb
4.Mayer
Posted Date:-2021-06-21 10:41:40
Flag smut of sweat could be controlled by
1.Seed treatment with vitavax
2.Spraying with vitavax
3.Soil application with vitavax
4.More than one option is correct
Posted Date:-2021-06-21 10:41:40
Flag smut of wheat is caused by
1.Ustilago tritici
2.Urceystis trlttct
3.Ustilago hordet
4.Taphrina deformans
Posted Date:-2021-06-21 10:41:40
Foot rot of papaya is caused by
1.Phytophthora palmivora
2.Pythium aphanidermatum
3.Peronospora parasitica
4.Albugo candida
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Fungi which can grow on living host plant are called
1.Obligate saprophyte
2.Obligate parasite
3.Facultative parasite
4.Saprophytes
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Fungi which can grow only on living host plant are called
1.Obligate saprophytes
2.Obligate parasites
3.Facultative parasites
4.Saprophytes
Posted Date:-2021-06-21 10:41:40
Which of the following is odd one
1.Lance nematode = Pratylenchulus
2.Lesion nematode = Pratylenchulus
3.Sting nematode = Belonolaimus
4.Awl nematode = Dolichodorous
Posted Date:-2021-06-21 10:41:40
Plant Pathology is word
1.English
2.Latin
3.Greek
4.Mandarin
Posted Date:-2021-06-21 10:41:40
proposed a classification of fungi which is now widely accepted
1.Walker (1957)
2.Stakman & Harrar (1957)
3.Whittaker (1969)
4.Ainsworth (1973)
Posted Date:-2021-06-21 10:41:40
Ryat is a which type of Parasite?
1.Obligate
2.Saprophyte
3.Facultative
4.Predator
Posted Date:-2021-06-21 10:41:40
The deficiency of which of the following caused Black heart of potato
1.Boron
2.Zinc
3.Iron
4.Oxygen
Posted Date:-2021-06-21 10:41:40
The shaped of Cocci are
1.Spiral shaped
2.Spherical shaped
3.Rod shaped
4.None of the above
Posted Date:-2021-06-21 10:41:40
Which among the following Spermatheca is found in the nematode body of?
1.Male
2.Female
3.A and B
4.None of these
Posted Date:-2021-06-21 10:41:40
Which of the following caused Black tip of mango ?
1.Phythium
2.Phytosynthetas
3.Boron deficiency
4.Zinc deficiency
Posted Date:-2021-06-21 10:41:40
Which of the following is a Albugo?
1.Obligate parasite
2.Facultative parasite
3.Saprophyte
4.Predator
Posted Date:-2021-06-21 10:41:40
Which of the following is the cause of Blast of rice?
1.Xanthomonas
2.Drechslera oryzae
3.Pyricularia
4.Cercospora
Posted Date:-2021-06-21 10:41:40
Which of the following is the shape of Bacilli
1.Spiral shaped
2.Spherical shaped
3.Rod shaped
4.None of the above
Posted Date:-2021-06-21 10:41:40
Which of the following was discovered by Alexander Fleming (1929)
1.Tyrocidine
2.Streptomycetease
3.Penicillin
4.Giseofulvin
Posted Date:-2021-06-21 10:41:40
Whittaker (1969) proposed a kingdom System of Classification of Micro-organism
1.4
2.5
3.6
4.8
Posted Date:-2021-06-21 10:41:40