RPSC Rajasthan AARO Plant Pathology 2018 Solved Paper (English) — Agri Master Mind
What does Hyperplasia refer to? (RJ AARO Plant Pathology 2018)
- Cell Death
- Cell Enlargement
- Increased Cell Division
- Decreased Cell Division
What characterizes a Dictyospore? (RJ AARO Plant Pathology 2018)
- Only Horizontal Septa
- Only Vertical Septa
- Both Horizontal and Vertical Septa
- No Septa
Which fungus forms Anastomosis Groups? (RJ AARO Plant Pathology 2018)
- Sclerotinia spp.
- Rhizotonia spp.
- Fusarium spp.
- Trichoderma spp.
What nutrient do Mycorrhiza supply to host plants? (RJ AARO Plant Pathology 2018)
- Iron
- Phosphorus
- Sulphur
- Nitrogen
Pleomorphic character is found in (RJ AARO Plant Pathology 2018)
- Fungi
- Bacteria
- Viruses
- Mycoplasma-like organism
Bacteriophage is (RJ AARO Plant Pathology 2018)
- A virus infecting eukaryotic cells
- A virus infecting bacteria
- Naked ssRNA particle
- Animal viruses
Where is the Ti (Tumor-Inducing) Plasmid found? (RJ AARO Plant Pathology 2018)
- Agrobacterium radiobacter
- Agrobacterium tumefaciens
- Xanthomonas axonopodis pv. citri
- Pseudomonas solanacearum
Which bacterium produces yellow pigment in growth medium? (RJ AARO Plant Pathology 2018)
- Xanthomonas
- Pseudomonas
- Agrobacterium
- Rhizobium
Which plant disease is caused by a Gram-positive bacterium? (RJ AARO Plant Pathology 2018)
- Black rot of crucifers
- Peach leaf curl
- Brown rot of potato
- Stem and fruit canker of tomato
In the nomenclature of bacteria, the pathovar system was introduced by (RJ AARO Plant Pathology 2018)
- D.W. Dye
- M.P. Starr
- M.J. Davis
- M.S. Mount
Genus of virus containing dsDNA is (RJ AARO Plant Pathology 2018)
- Gemini virus
- Tobra virus
- Poty virus
- Caulimo-virus
W.M. Stanley got the Nobel Prize for (RJ AARO Plant Pathology 2018)
- Baculoviruses
- Mycoviruses
- Sedimentation of TMV
- Crystallization of TMV
What causes Coconut Cadang-Cadang Disease? (RJ AARO Plant Pathology 2018)
- Viroid
- Virus
- Phytoplasma
- L-form bacteria
What are infectious protein particles called? (RJ AARO Plant Pathology 2018)
- Viroids
- Phages
- Prions
- Oncogenic viruses
What type of virus is Stylet-Borne Virus? (RJ AARO Plant Pathology 2018)
- Non-persistent
- Persistent
- Propagative
- Circulative
Through what channel do plant viruses cross from infected to uninfected cells? (RJ AARO Plant Pathology 2018)
- Plasmodesmata
- Cell membrane
- Nuclear membrane
- Endoplasmic reticulum
What are the two types of viral particles in Rice Tungro virus? (RJ AARO Plant Pathology 2018)
- Bacilli form and spherical
- Both Bacilli form
- Both spherical
- Both isometric
What are the structural molecules that make up virus capsids? (RJ AARO Plant Pathology 2018)
- Envelops
- Capsomeres
- Prophage
- Spikes
Solar energy treatment for loose smut of wheat disease was given by (RJ AARO Plant Pathology 2018)
- R.S. Vasudeva
- J.C. Luthra and Sattar
- R.N. Tandon
- Suryanarayana
The "gene for gene" hypothesis was discovered by Harold Henry while working with rust of (RJ AARO Plant Pathology 2018)
- Soyabean
- Lentil
- Flax
- Wheat
In India, domestic quarantine is imposed for: (RJ AARO Plant Pathology 2018)
- Potato scab
- Potato wart
- Potato late blight
- Potato virus X
What is an important ingredient in Burgundy mixture? (RJ AARO Plant Pathology 2018)
- Sodium Carbonate
- Calcium Hydroxide
- Sodium Chloride
- Ammonium Carbonate
Which fungal biological agent is used against soil-borne fungal diseases? (RJ AARO Plant Pathology 2018)
- Fusarium solani
- Bacillus subtilis
- Penicillium spp.
- Trichoderma spp.
What type of diseases are sulphur fungicides effective against? (RJ AARO Plant Pathology 2018)
- Wilts
- Downy mildews
- Anthracnose
- Powdery mildews
What does 250 PPM solution mean? (RJ AARO Plant Pathology 2018)
- g/lit
- g/lit
- mg/lit
- mg/lit
Which organism produces the Streptomycin antibiotic? (RJ AARO Plant Pathology 2018)
- Streptomyces griseochromogens
- Streptomyces kesugaensis
- Penicillium griseofulvum
- Streptomyces griseus
Benzimidazole Fungicides interfere with: (RJ AARO Plant Pathology 2018)
- Chitin synthesis
- Nuclear division
- Mitochondrial respiration
- Electron transport
What is the upward movement of fungicides in plant systems called? (RJ AARO Plant Pathology 2018)
- Passive movement
- Apoplastic movement
- Symplastic movement
- Acropetal movement
Which fungicide is also known as Kittleson's killer? (RJ AARO Plant Pathology 2018)
- Dinocap
- Captan
- Bayton
- Carbendazim
Flag Smut of Wheat was introduced in India from: (RJ AARO Plant Pathology 2018)
- Sri Lanka
- Australia
- England
- The Netherlands
The Pathogen Plasmopara viticola is related to the discovery of: (RJ AARO Plant Pathology 2018)
- Bordeaux mixture
- Bordeaux paint
- Soda Bordeaux mixture
- Bordeaux paste
Streptomycin, the first antibiotic used in plant disease control, was used against: (RJ AARO Plant Pathology 2018)
- Fire Blight of Pear
- Citrus Canker
- Bacterial Blight of Cotton
- Soft Rot of Potato
Soybean Rust is caused by: (RJ AARO Plant Pathology 2018)
- Phakospora pachyrrhizi
- Uromyces appendiculatus
- Puccinia coronata
- Hemileia vastatrix
A Rice Disease caused by Thanetophorus cucumeris is known as: (RJ AARO Plant Pathology 2018)
- Sheath Rot
- Sheath Blight
- Root Rot
- Foot Rot
Choose the correct stages of Rust Fungi in sequence (0-IV): (RJ AARO Plant Pathology 2018)
- Aecium (I) Pycnium (II) Basidium (III) Telium (IV) Uredium
- Pycnium (I) Aecium (II) Uredium (III) Telium (IV) Basidium
- Aecium (I) Uredium (II) Pycnium (III) Telium (IV) Basidium
- Basidium (I) Aecium (II) Uredium (III) Pycnium (IV) Telium
The inoculum source of Citrus Canker is: (RJ AARO Plant Pathology 2018)
- Bacteria spread through seed
- Infected twigs and old lesions on the standing tree
- Bacteria present in soil in infected plant parts
- Alternate host
One of the following is a Total Root Parasite: (RJ AARO Plant Pathology 2018)
- Dodder
- Loranthus
- Orobanche
- Striga
The most effective Fungicide popularly used as Post-Harvest Dip is: (RJ AARO Plant Pathology 2018)
- Thiabendazole
- Thiram
- Mancozeb
- Ziram
Smut of Onion is: (RJ AARO Plant Pathology 2018)
- Seed-borne
- Seed-borne and Bulb-borne
- Seed-borne, Bulb-borne, and Soil-borne
- Seed-borne, Bulb-borne, Soil-borne, and Air-borne
Bacterial leaf spot of pomegranate is caused by (RJ AARO Plant Pathology 2018)
- Xanthomonas axanopodis pv. punicae
- Xanthomonas campestris pv. translucens
- Xanthomonas arboricola pv. pruni
- Xanthomonas campestris pv. pruni
Leaf curl of tomato is transmitted through (RJ AARO Plant Pathology 2018)
- White fly
- Jassid
- Aphid
- Mite
Stem Gall of Coriander is caused by: (RJ AARO Plant Pathology 2018)
- Protomyces macrosporus
- Magnaporthe grisea
- Rhizoctonia solani
- Fusarium sambucinum
Little Leaf of Brinjal is caused by: (RJ AARO Plant Pathology 2018)
- Mycoplasma-like Organism
- Fungi
- Bacteria
- Viruses
In Rajasthan, Downy Mildew of Pearl Millet is an important disease. The most suitable disease management is done by using: (RJ AARO Plant Pathology 2018)
- Only Seed Treatment
- Only Foliar Spray of Chemical
- Summer Ploughing + Seed Treatment + Foliar Spray
- Summer Ploughing + Seed Treatment + Resistant Varieties
Whiptail of Cauliflower is caused due to the deficiency of: (RJ AARO Plant Pathology 2018)
- Boron
- Zinc
- Molybdenum
- Iron
The Seed-Borne Nematode is: (RJ AARO Plant Pathology 2018)
- Heterodera
- Anguina
- Meloidogyne
- Pratylenchus
Sesamum Phyllody is caused by: (RJ AARO Plant Pathology 2018)
- Virus
- Bacterium
- L-form bacteria
- Phytoplasma
Which juvenile stage of root knot nematode attacks to plant? (RJ AARO Plant Pathology 2018)
- First stage juvenile
- Second stage juvenile
- Third stage juvenile
- Fourth stage juvenile
Grain smut of sorghum is caused by (RJ AARO Plant Pathology 2018)
- Sphacelotheca cnanta
- Sphacelotheca reiliana
- Sphacelotheca sorghi
- Tolyposporium ehrenbergii
Differential resistance is also called as (RJ AARO Plant Pathology 2018)
- Horizontal resistance
- Vertical resistance
- Biochemical resistance
- Cytoplasmic resistance
Puccinia graminis produces enzymes that can degrade: (RJ AARO Plant Pathology 2018)
- Cuticular wax
- Peptic substances
- Cellulose
- Hemi cellulose
Aflatoxins are most carcinogenic toxins which are produced by (RJ AARO Plant Pathology 2018)
- Neurospora crassa
- Fusarium avenaceum
- Rhizomona bataicola
- Aspergillus flavus
Rishitin, Pisatin, and Phaseollin are examples of (RJ AARO Plant Pathology 2018)
- Phytotoxin
- Phytoalexins
- Physanticipins
- Pathotoxins
Match the following: (A) Hm-1 - (a) Resistance gene of rice (B) Cf-9 - (b) Resistance gene of flax (C) L6 - (c) Resistance gene of maize (D) Xa21 - (d) Resistance gene of tomato Codes: (
- (c) (d) (b) (a)
- (a) (b) (d) (c)
- (b) (c) (d) (a)
- (d) (a) (c) (b)
Abiotic factor of black-heart of potato is (RJ AARO Plant Pathology 2018)
- High humidity
- Low oxygen supply and high temperature
- High storage temperature
- Low temperature
One of the following fungi producing alkaloid ergotin is (RJ AARO Plant Pathology 2018)
- Aspergillus niger
- Claviceps purpurea
- Rhizopus stolonifer
- Sclerotium solfati
Fungi can be stained by (RJ AARO Plant Pathology 2018)
- Safranin
- Lactophenol cotton blue
- Glycerine
- Malachite green
Autoclave sterilization is done at 121 °C for 15 minutes at a pressure of (RJ AARO Plant Pathology 2018)
- psi
- psi
- psi
- psi
Standard blotter test is used in (RJ AARO Plant Pathology 2018)
- Seed health testing
- Seed purity test
- Seed rate
- Seed viability
The size of fungal spores is measured by which technique? (RJ AARO Plant Pathology 2018)
- Pathometry
- Turbidometry
- Micrometry
- Microtomy
In agarose gel electrophoresis, DNA will migrate towards (RJ AARO Plant Pathology 2018)
- Cathode or positive electrode
- Anode or negative electrode
- Cathode or negative electrode
- Anode or positive electrode
The simplest technique for isolating bacteria in growth media is referred to as (RJ AARO Plant Pathology 2018)
- Serial Dilution Method
- MPN (Most Probable Number) Method
- Streak Plate Method
- Pour Plate Method
Plant virus particles can be seen under (RJ AARO Plant Pathology 2018)
- Light Microscope
- Compound Microscope
- Electron Microscope
- Fluorescence Microscope
Indian Type Culture Collection (ITCC) centre is located at (RJ AARO Plant Pathology 2018)
- Pune
- Chandigarh
- Dehradun
- New Delhi
A solidifying agent Agar-Agar is obtained from (RJ AARO Plant Pathology 2018)
- Red Algae
- Green Algae
- Blue-Green Algae
- Brown Algae
Contribution on the epidemiology of disease cycle of stem rust of wheat was made by (RJ AARO Plant Pathology 2018)
- K.C. Mehta
- M.M. Payak
- B.B. Mundkur
- S. Nagarajan
The first computer simulation program for plant disease forecasting was (RJ AARO Plant Pathology 2018)
- EPIVEN
- EPIDEM
- TOMCAST
- BLIGHTCAST
Covered Smut of Barley is an example of (RJ AARO Plant Pathology 2018)
- Monocyclic
- Polycyclic
- Hemicyclic
- Non-cyclic
The optimum temperature range for the disease development of Stem and Foot Rot of Papaya is (RJ AARO Plant Pathology 2018)
- °C
- °C
- °C
- °C
In case of Loose Smut of Wheat, assessment of losses is done at which crop stage? (RJ AARO Plant Pathology 2018)
- Ripening Stage
- Heading Stage
- Flowering Stage
- Dough Stage
The number of plant units infected in a population is known as (RJ AARO Plant Pathology 2018)
- Disease severity
- Disease intensity
- Disease index
- Disease incidence
The disease that spreads suddenly in a large area for a short time is known as (RJ AARO Plant Pathology 2018)
- Pandemic disease
- Sporadic disease
- Epidemic disease
- Endemic disease
A book "Plant Disease: Epidemics and Control" was written by (RJ AARO Plant Pathology 2018)
- R.S. Singh
- B.M. Cook
- G.N. Agrins
- J.E. Vanderplank
The mushroom Volvariella sp. is also known as (RJ AARO Plant Pathology 2018)
- Paddy Straw Mushroom
- Button Mushroom
- Oyster Mushroom
- Milky Mushroom
The fruiting body of a mushroom is called (RJ AARO Plant Pathology 2018)
- Sorocarp
- Basidiocarp
- Ascocarp
- Plasmodiocarp
Which of the following is a poisonous mushroom? (RJ AARO Plant Pathology 2018)
- Agaricus bisporus
- Volvariella volvacea
- Pleurotus eryngii
- Amanita phalloides
In Ancient India, a book "Vrikshayurveda" was written by (RJ AARO Plant Pathology 2018)
- Surpal
- Charsk
- Vagbhata
- Sushruta
The first Indian scientist who worked on fungi was (RJ AARO Plant Pathology 2018)
- K.R. Kirtikar
- E.J. Butler
- B.B. Mundkur
- J.F. Dastur
The most devastating air pollutant to plants is (RJ AARO Plant Pathology 2018)
- Nitrogen Dioxide
- Sulfur Dioxide
- Ethylene
- Ozone
Crown gall of stone fruits can be controlled by using (RJ AARO Plant Pathology 2018)
- Trichoderma
- Strain K-84 of Agrobacterium radiobacter
- Ampelomyces quisqualis
- Bacillus subtilis
A journal "Journal of Mycology and Plant Pathology" is published from (RJ AARO Plant Pathology 2018)
- New Delhi
- Jodhpur
- Udaipur
- Jaipur
Cross-protection is used against diseases caused by (RJ AARO Plant Pathology 2018)
- Viral diseases
- Bacterial diseases
- Fungal diseases
- Phytoplasmal diseases
One of the following important reasons for the Bengal famine was (RJ AARO Plant Pathology 2018)
- Rust of wheat
- Late blight of Potato
- Helminthosporium disease of rice
- Sheath blight of rice
The Indian Phytopathological Society was established by (RJ AARO Plant Pathology 2018)
- E.J. Butler
- T.S. Sadasivan
- B.B. Mundkur
- R. Prasada
Duliporu septum is found in (RJ AARO Plant Pathology 2018)
- Ascomycetes
- Basidiomycetes
- Deuteromycetes
- Zygomycetes
One of the following is a heteroecious fungus: (RJ AARO Plant Pathology 2018)
- Albugo candida
- Phytophthora infestans
- Puccinia graminis var. tritici (Stem Rust)
- Ustilago nuda tritici
Perfect Stage of a fungus means: (RJ AARO Plant Pathology 2018)
- when it reproduces asexually
- when the fungus is perfectly healthy
- when the fungus produces spores
- when it forms sexual spores
The model fungus which is used in genetic study is: (RJ AARO Plant Pathology 2018)
- Penicillium
- Rhizopus
- Neurospora
- Aspergillus
The thallus that is converted into a reproduction structure is known as: (RJ AARO Plant Pathology 2018)
- Holocarpic
- Monecious
- Dioecious
- Eucarpic
Fungi causing downy mildew diseases are differentiated on the basis of: (RJ AARO Plant Pathology 2018)
- Sporangiophores character and germination of sporangia
- Conidia characters
- Teliospore characters
- Appendages attached to the cleistothecia
Which one of the following fungi is single-celled? (RJ AARO Plant Pathology 2018)
- Aspergillus
- Yeast
- Fusarium
- Penicillium
The genus Fusarium belongs to family: (RJ AARO Plant Pathology 2018)
- Tuberculariaceae
- Dematiaceae
- Moniliaceae
- Melanconiaceae
Synnema formation is a common feature of: (RJ AARO Plant Pathology 2018)
- Imperfect Fungi
- Ascomycetes
- Basidiomycetes
- Phycomycetes
VAM stands for: (RJ AARO Plant Pathology 2018)
- Velliculier and Mycorrhiza
- Vesicular Arbuscular Mycelium
- Veinicular and Artsuscular Mycoflora
- Vesicular Arbuscular Mycorrhiza
Parasexuality was first discovered by: (RJ AARO Plant Pathology 2018)
- Erikson
- de Bary
- Pontecarvo
- Robert Koch
The fruiting body of Colletotrichum capsici is: (RJ AARO Plant Pathology 2018)
- Acervulum
- Perithecium
- Pycnidium
- Sporodochium