RPSC Rajasthan ARO Plant Pathology 2014 Solved Paper (English) — Agri Master Mind
Plant pathology deals with the study of: - (RJ ARO Plant Pathology 2014)
- Causal organism and management
- Causal organism and disease cycle
- Disease cycle and management
- Causal organism, disease cycle and management of plant diseases
Factors responsible for disease occurrence:- (RJ ARO Plant Pathology 2014)
- Host and pathogen
- Susceptible host and pathogen
- Susceptible host and virulent pathogen and favorable environment
- Susceptible host and virulent pathogen
The first book on plant pathology, entitled "Diseases of Cultivated Crops, their causes and their control" was written by :- (RJ ARO Plant Pathology 2014)
- Kuhn
- Tillet
- De Bary
- Micheli
The journal "Phytopathology" was begin to published in the year:- (RJ ARO Plant Pathology 2014)
In 1963 concept of vertical and horizontal resistance was given by :- (RJ ARO Plant Pathology 2014)
- Eriksson
- Orton
- Stakman
- Vanderplank
Gene for gene theory H.H. Flor worked with the rust of :- (RJ ARO Plant Pathology 2014)
- Wheat
- Barley
- Linseed
- Pea
Cedar-apple rust is caused by :- (RJ ARO Plant Pathology 2014)
- Hemileia vastatrix
- Melampsora lini
- Uromyces appendiculatus
- Gymnosporangium juniperi-virginianae
Mushrooms belong to order :- (RJ ARO Plant Pathology 2014)
- Agaricales
- Exobasidiales
- Uredinales
- Ustilaginales
Generalized loss of turgidity and drooping of leaves or shoots are the symptoms of: - (RJ ARO Plant Pathology 2014)
- Rust
- Smut
- Wilt
- Mildew
Slime molds belong to phylum :- (RJ ARO Plant Pathology 2014)
- Myxomycota
- Zygomycota
- Oomycota
- Ascomycota
Late blight of tomato is caused by: (RJ ARO Plant Pathology 2014)
- Phytophthora cactorum
- Phytophthora cambivora
- Phytophthora infestans
- Phytophthora citrophthora
Special structures "rhizoids" are produced in the fungus: (RJ ARO Plant Pathology 2014)
- Aspergillus
- Penecillium
- Mucor
- Rhizopus
Downy mildew of grapes is caused by: (RJ ARO Plant Pathology 2014)
- Plasmopara halstedii
- Plasmopara viticola
- Peronospora destructor
- Peronospora effusa
The fungi, causing powdery mildews, are: (RJ ARO Plant Pathology 2014)
- Obligate parasites
- Facultative parasites
- Obligate saprophytes
- Facultative saprophytes
Sigatoka disease of banana is caused by: (RJ ARO Plant Pathology 2014)
- Mycosphaerella fragariae
- Mycosphaerella musicola
- Mycosphaerella citri
- Magnaporthe grisea
Smut of bajara is: (RJ ARO Plant Pathology 2014)
- Seed borne
- Soil borne
- Air borne
- Seed and soil borne
Whip smut of sugarcane is caused by: (RJ ARO Plant Pathology 2014)
- Ustilago scitaminea
- Ustilago nuda
- Ustilago maydis
- Ustilago hordei
Long smut of sorghum is caused by: (RJ ARO Plant Pathology 2014)
- Sphacelotheca cruenta
- Sphacelotheca reiliana
- Sphacelotheca sorghi
- Tolyposporium ehrenbergii
In black rust of wheat, zero (0) stage of fungus is known as: (RJ ARO Plant Pathology 2014)
- Basidial
- Uredial
- Telial
- Pycnidial
Which one is a poisonous mushroom? (RJ ARO Plant Pathology 2014)
- Pleurotus
- Agaricus
- Volvariella
- Amanita
Mycorrhiza is the association of :- (RJ ARO Plant Pathology 2014)
- Fungi and Higher plants
- Fungi and Algae
- Fungi and Bacteria
- Fungi and Insects
Lichens shows which type of association :- (RJ ARO Plant Pathology 2014)
- Symbiosis
- Commensalism
- Synergism
- Antibiosis
The smallest pathogenic agent is:- (RJ ARO Plant Pathology 2014)
- Virus
- Viroid
- Virusoid
- Prion
Filters used in Laminar air flow are known :-- (RJ ARO Plant Pathology 2014)
- HEPA-filters
- Asbestos-filters
- Porcelain-filters
- Sintered glass filters
The "Quarantine laws" in USA were first enacted in :-- (RJ ARO Plant Pathology 2014)
Grassy shoot disease of sugarcane is caused by:- (RJ ARO Plant Pathology 2014)
- Fungi
- Bacteria
- Phytoplasma
- Virus
L-form bacteria do not possess:- (RJ ARO Plant Pathology 2014)
- Cell membrane
- Cell wall
- Mesosome
- Ribosome
Which bacterium is a flagellate? (RJ ARO Plant Pathology 2014)
- Pseudomonas
- Xanthomonas
- Agrobacterium
- Xylella
Typical "stem-pitting" symptoms are produced in the disease:- (RJ ARO Plant Pathology 2014)
- Citrus exocortis
- Citrus tristeza
- Citrus greening
- Citrus canker
Alternate host of Bajra rust is:- (RJ ARO Plant Pathology 2014)
- Tomato
- Pea
- Brinjal
- Chilli
The conversion of the whole thallus into a reproductive structure is called:- (RJ ARO Plant Pathology 2014)
- Holocarpic
- Eucarpic
- Endocarpic
- Mesocarpic
Counter stain for gram-positive bacteria is:- (RJ ARO Plant Pathology 2014)
- Crystal violet
- Iodine
- Safranin
- Cotton blue
Minimum magnification power of "Electron microscope" is:- (RJ ARO Plant Pathology 2014)
- times
- times
- times
- times
The enlargement of host tissues due to excess cell division is called :- (RJ ARO Plant Pathology 2014)
- Hyperplasia
- Hypertrophy
- Hypoplasia
- Hypotrophy
Dispersal of plant pathogens through wind is known :- (RJ ARO Plant Pathology 2014)
- Hydrochory
- Zoochory
- Anemochory
- Anthropochory
Browning of vascular bundles occurs in the disease :- (RJ ARO Plant Pathology 2014)
- Wilt
- Smut
- Rust
- Bunt
Sterilization of culture medium is done at a pressure of :- (RJ ARO Plant Pathology 2014)
- psi
- psi
- psi
- psi
Van Everdingen (1933) evolved "Dutch rules" for the fungus: (RJ ARO Plant Pathology 2014)
- Puccinia striiformis
- Albygo candida
- Phytophthora infestans
- Pythium debaryanum
Indian type culture collection for fungi is located at :- (RJ ARO Plant Pathology 2014)
- Kolkata
- Hyderabad
- New Delhi
- Mumbai
Striga is a plant parasite:- (RJ ARO Plant Pathology 2014)
- Total stem parasite
- Total root parasite
- Partial stem parasite
- Partial root parasite
Pyricularin is produced by the fungus :- (RJ ARO Plant Pathology 2014)
- Pyricularia oryzae
- Fusarium oxysporum
- Helminthosporium maydis
- Helminthosporium victoriae
Fastidious vascular bacteria are mainly restricted to the region:- (RJ ARO Plant Pathology 2014)
- Epidermis
- Vascular bundles
- Cortex
- Pith region
First plant pathogenic nematode was discovered by :- (RJ ARO Plant Pathology 2014)
- Needham
- Cobb
- Kuhn
- Devaine
Bengal famine is related with the crop:- (RJ ARO Plant Pathology 2014)
- Wheat
- Paddy
- Potato
- Maize
Pycnia with acervuli production is the feature of class:- (RJ ARO Plant Pathology 2014)
- Hyphomycetes
- Coelomycetes
- Blastomycetes
- Pyrenomycetes
The ratio of copper sulphate and ammonium sulphate in "Cheshunt" compound is:- (RJ ARO Plant Pathology 2014)
- :11
- :11
- :11
- :11
Coenocytic mycelium is present in fungus :- (RJ ARO Plant Pathology 2014)
- Phytophthora
- Ustilago
- Puccinia
- Alternaria
Naked asci are produced in the class :-- (RJ ARO Plant Pathology 2014)
- Discomycetes
- Pyrenomycetes
- Plectomycetes
- Hemiascomycetes
First produced systemic fungicide is:- (RJ ARO Plant Pathology 2014)
- Bordeaux mixture
- Captan
- Thiram
- Carboxin
Parasexuality phenomenon was first observed in the fungus: (RJ ARO Plant Pathology 2014)
- Aspergillus nidulans
- Aspergillus flavus
- Aspergillus niger
- Penicillium notatum
The perfect stage of Helminthosporium is: (RJ ARO Plant Pathology 2014)
- Thanatephorus
- Magnaporthe
- Cochliobolus
- Talaromyces
Leaf smut of rice is caused by: (RJ ARO Plant Pathology 2014)
- Entyloma oryzae
- Urocystis tritici
- Ustilago tritici
- Ustilago nuda
The total stem parasite is: (RJ ARO Plant Pathology 2014)
- Loranthus
- Orobanche
- Striga
- Cuscuta
The cause of "black heart" disease of potato is: (RJ ARO Plant Pathology 2014)
- Water stress
- Frost injury
- High light intensity
- Lack of oxygen
The disease which takes more than one year to complete the disease cycle is known as :- (RJ ARO Plant Pathology 2014)
- Polyetic
- Monocyclic
- Polycyclic
- Demicyclic
Tundu disease of wheat is caused by Clavibacter with nematode:-- (RJ ARO Plant Pathology 2014)
- Anguina tritici
- Meloidogyne graminicola
- Heterodera avenae
- Ditylenchus angustus
Viruses are mainly transmitted by :- (RJ ARO Plant Pathology 2014)
- Insects
- Fungi
- Bacteria
- Nematodes
The term "Boom & Burst cycle" for disease resistance was given by :- (RJ ARO Plant Pathology 2014)
- Flor
- Priestley
- Prusiner
- Voinnet
First resistance (R) gene cloned and sequenced in 1992 from maize is :-- (RJ ARO Plant Pathology 2014)
- Hm-1
- Cf-9
- Pt-0
- Xa-21
Mycorrhiza supplies which nutrient in the plants? (RJ ARO Plant Pathology 2014)
- Iron
- Sulphur
- Phosphorus
- Nitrogen
Pasteurization is done at temperature: - (RJ ARO Plant Pathology 2014)
- °C
- °C
- °C
- °C
The perfect stage of Aspergillus is:- (RJ ARO Plant Pathology 2014)
- Eurotium
- Thanetophorus
- Glomerella
- Gibberella
"Khaira disease" of rice is caused by deficiency of :- (RJ ARO Plant Pathology 2014)
- Nitrogen
- Zinc
- Potash
- Phosphorus
The organisms lacking a well-defined nucleus are known as:- (RJ ARO Plant Pathology 2014)
- Fungi
- Protozoa
- Eukaryotes
- Prokaryotes
Conidia and sporangia are produced by: (RJ ARO Plant Pathology 2014)
- Viruses
- Fungi
- Bacteria
- Phytoplasma
Solar heat treatment for the control of loose smut of wheat was given by: (RJ ARO Plant Pathology 2014)
- Jensen
- Mitra
- Butler
- Luthra and Sattar
Which toxin is host-specific: (RJ ARO Plant Pathology 2014)
- Tabtoxin
- Tentoxin
- Victorin
- Phaseotoxin
Peach leaf curl disease is caused by: (RJ ARO Plant Pathology 2014)
- Virus
- Bacterium
- Fungus
- Phytoplasma
Kresek phase symptoms found in: (RJ ARO Plant Pathology 2014)
- Late blight of potato
- Black arm of cotton
- Bacterial leaf blight of rice
- Moko disease of banana
Club root disease of cabbage was first reported by: (RJ ARO Plant Pathology 2014)
- N.A. Cobb
- E.J. Butler
- Woronin
- K.C. Mehta
Tungro disease of rice is caused by: (RJ ARO Plant Pathology 2014)
- Bacteria
- Fungi
- Virus
- Phytoplasma
Eriophyid mite is transmitting: (RJ ARO Plant Pathology 2014)
- Little leaf of brinjal
- Bunchy top of banana
- Sterility mosaic of pigeon pea
- citrus greening
Phytoplasma contains: (RJ ARO Plant Pathology 2014)
- Only RNA
- Only DNA
- Both RNA and DNA
- Only protein coat
Red leaf of cotton is a deficiency disease due to: (RJ ARO Plant Pathology 2014)
- Copper
- Iron
- Boron
- Nitrogen
Ooze test is the diagnostic test for: (RJ ARO Plant Pathology 2014)
- Bacteria
- Virus
- Nematode
- Fungi
The two important compounds of the cell wall in most of the fungi are: (RJ ARO Plant Pathology 2014)
- Glucan and cellulose
- Peptidoglycan and cellulose
- Chitin and cellulose
- Peptidoglycan and Chitin
Some pathogens secrete an iron chelating agent known as:- (RJ ARO Plant Pathology 2014)
- P.R.Proteins
- Siderophores
- Phytoalexins
- Elicitors
Which Fungicide is specific for downy mildew fungi :- (RJ ARO Plant Pathology 2014)
- Chlorothalonil
- Plantvax
- Metalaxyl
- Vitavax
An example of a compound interest disease is :- (RJ ARO Plant Pathology 2014)
- Wilt of gram
- Root rot of cotton
- Stem rust of wheat
- Club root of cabbage
Local and systemic both infection are found in :- (RJ ARO Plant Pathology 2014)
- Covered smut of barley
- Karnal bunt of wheat
- White rust of Mustard
- Black rust of wheat
Virus is transmitted by which nematode? (RJ ARO Plant Pathology 2014)
- Globodera
- Meloidogyne
- Heterodera
- Xiphinema
Which of the following fungi is called weed of the laboratory? (RJ ARO Plant Pathology 2014)
- Fusarium solani
- Cercospora personata
- Pyricularia oryzae
- Aspergillus niger
Characteristic H-shaped structure of primary sporidia is found in :- (RJ ARO Plant Pathology 2014)
- Neovossia
- Ustilago
- Sphaerotheca
- Tilletia
Which one is commonly known as grey mold fungus? (RJ ARO Plant Pathology 2014)
- Penicillium italicum
- Penicillium notatum
- Botrytis cinerea
- Aspergillus niger
Gossypium arboreum species of cotton are found resistant against which disease? (RJ ARO Plant Pathology 2014)
- Root rot
- Wilt
- Bacterial leaf blight
- Leaf curl
In which of the following fungi are zoospores formed inside a vesicle? (RJ ARO Plant Pathology 2014)
- Phytophthora
- Pythium
- Rhizoctonia
- Albugo
Taphrina maculans causes which disease? (RJ ARO Plant Pathology 2014)
- Leaf spot of turmeric
- Tikka of groundnut
- Powdery mildew of pea
- Wilt of pigeon pea
Perithecia with single ascus and simple appendages are found in the genus :- (RJ ARO Plant Pathology 2014)
- Erysiphe
- Uncinula
- Sphaerotheca
- Podosphera
Coffee rust was first reported in 1868 from:- (RJ ARO Plant Pathology 2014)
- Brazil
- Ceylon
- India
- Indonesia
Which is of the following fungi is commonly known as white mold/stem rotting? (RJ ARO Plant Pathology 2014)
- Rhizoctonia solani
- Sclerotinia sclerotiorum
- Fusarium solani
- Albugo candida
Red onion is resistant to smudge due to the presence of which compound? (RJ ARO Plant Pathology 2014)
- Phenolic contents
- Catechol and protocatechuic acid
- Chlorogenic acid
- Wax
Anthracnose of grapes is caused by which pathogen? (RJ ARO Plant Pathology 2014)
- Elsinoe ampelina
- Greenaria viticola
- Plasmopara viticola
- Uncinula necator
The symbiont bacterial genus is? (RJ ARO Plant Pathology 2014)
- Xanthomonas
- Clavibacter
- Bacillus
- Rhizobium
On culture media, mycoplasmal colonies appear as? (RJ ARO Plant Pathology 2014)
- Rod shaped
- Helical
- Spiral
- Fried-egg appearance
Tomato leaf curl virus is transmitted by which vector? (RJ ARO Plant Pathology 2014)
- Myzus persicae
- Bemisia tabaci
- Thrips tabaci
- Infected plant material
Match the correct of the following A. Potassium dichromate -(a). Fixative B. Agar-agar (b). Cleaning solution C. Lectophenol---- (c). Mounting medium D. Formalin acetic acid -(d).Solidifying agent
- A-(a), B-(b), C-(c), D-(d)
- A-(d), B-(b), C-(a), D-(c)
- A-(a), B-(c), C-(d), D-(b)
- A-(b), B-(d), C-(c), D-(a)
Stem galls of coriander is caused by which pathogen? (RJ ARO Plant Pathology 2014)
- Fusarium
- Alternaria
- Protonaria
- Cercospora
Which among the following is commonly known as oyster mushroom? (RJ ARO Plant Pathology 2014)
- Volvariela
- Agaricus
- Pleurotus
- Lentinus