Plant Pathology — Agri Master Mind

The founder of mycology
  • Linnaeus
  • Anton de Bary
  • PA Micheli
  • E J Butler
In india , Green ear disease of sorghum was identified by
  • Adolf Mayer
  • E F Smith
  • MK Patel
  • T J Burrill
Phytoplasma can cause plant disease was reported by
  • T . O Diener
  • Doi .et al
  • Kassanis
  • B . B Mudkar
Satellite virus was first discovered by
  • Kassanis
  • T O Diener
  • F . C Bawden
  • None
The Ireland Famine was due to …
  • Early blight of potato
  • Late blight of potato
  • PVX
  • None
Indian Phytopathological Society was established by
  • E J Bulter
  • R N Tandon
  • BB Mundkar
  • None
Transduction of bacteria was first demonstrated by
  • Zinder and Lederberg
  • Grifith
  • FdHerelle
  • Muller
Fungi and disease in plants was written by
  • B BMundkur
  • KC Mehta
  • E J Bulter
  • None
The first antibiotic was ..
  • Penicillin
  • Streptomycin
  • Tetracycline
  • None
Life cycle of wheat rust in india was written by
  • E.J Bulter
  • M J Thriumalachur
  • R N Tandon
  • None
The first plant parasitic nematode was reported by
  • Needham
  • N .A Cobb
  • Spallanzani
  • None
Bordeaux mixture was discovered
  • I .B Prevost
  • M . Tillet
  • Anton de Bary
  • None
The scientists who introduced the term “Viroid”
  • Doi et . al
  • B .Kassains
  • T. O Diener
  • None
The Great Bengal famine was during
  • 1940 -41
  • 1940-46
  • 1942 – 43
  • 1945 - 46
Sulphur was used for the first time against peach mildew by
  • Prevost 1807
  • Robertson 1821
  • Schulthess 1761
  • None
Which one is not correct
  • Burgundy mixture – E. Masson
  • Mercuric Chloride – Hilther
  • Captan – Tisdale
  • Carbamates – Tisdale
DIPA passed in
  • 1660
  • 1912
  • 1951
  • 1914
Vertical and horizontal resistance by
  • Vanderplanks
  • H.H Flor
  • K. M Smith
  • E J Bulter
Domestic quarantine exixts on
  • Rice blast
  • Red rot of sugarcance
  • Late blight of potato
  • Wart of potato
Dithane M-45 is a
  • Bacteriocide
  • Insecticide
  • Fungicide
  • Nematicide
Exclusion of plant by legislation is know is
  • Plant quarantine
  • Disease resistance
  • Culture control
  • Biological control
Apothecia are found in
  • Aspergillus
  • Alternaria
  • Sclerotinia
  • Penicillium
Non – septate conidia of fungi belong to
  • Helicospore
  • Phragmosporea
  • Didymospores
  • Amerospore
Unicellular fungus is
  • Rhizopus
  • Mucor
  • Yeast
  • Downy mildew
In fungi storage food accumulate as
  • Glycogen
  • Cholesterol
  • Argosterol
  • Volutine
Mass of hyphae of fungi constituting the tallus is called
  • Hyphae
  • Flagellum
  • Mycelium
  • Rhizoids
Most of plant pathogenic bacteria are
  • Gram positive
  • Gram negative
  • Non flagellable
  • Cell wallacking
Ti – plasmid carries information for
  • T – DNA
  • Opine synthesis
  • Protein synthesis
  • All the above
The bacterial 70 S ribosomes are present in
  • Cytoplasm
  • Mitochondria
  • Plastids
  • Mesosomes
Blast of Rice is caused by
  • Magnaporthe grisea
  • Drechsleraoryzae
  • Ephelis oryzae
  • Rhizoctonia solani
Effective fungicide for the control of blast disease of Rice
  • Mancozeb
  • Tricyclazole
  • Fosteyl Al
  • Plantvax
Brine floatation method is followed to control
  • Loose Smut of Wheat
  • Tundu disease of Wheat
  • Grain smut of Jowar
  • Rice blast
The famous Irish famine of 1842 was caused due to the outbreak of
  • Helminthosporiose of rice
  • Stem rust of Wheat
  • Late blight of potato
  • Downy mildew of Grapes
Bacteriophages are used for forecasting the incidence of
  • Tungro disease of ice
  • Bacterial blight of Paddy
  • Blast of Paddy
  • Brown spot of rice
Bakane disease of rice caused due to the production of any one of the following by the fungal pathogen
  • Gibberellins
  • Cytokinins
  • Toxins
  • Auxins
The rice tungro virus contains
  • ss RNA
  • ds RNA
  • ds DNA
  • a&c
The great Bengal famine in 1943 was due to
  • Paddy blast
  • Brown leaf spot of Rice
  • Bacterial leaf blight
  • Rice tungro
False smut of Rice is caused by
  • Neovossiahorrida
  • Entylomaoryzae
  • Ustilagoscitaminae
  • Ustilaginoidea virens
Rice Tungro virus is transmitted by
  • Leaf hoppers
  • White bug
  • White flies
  • Mites
Khaira disease in rice is noticed by
  • Y.L.Nene
  • S.N.Dasgupta
  • M.K.Patel
  • E.J.Butler
An internally seed borne fungal disease
  • Smut of Ragi
  • Red rot of Sugarcane
  • Loose smut of Wheat
  • Grain smut of Jowar
Significant contribution on the epidemiology of disease cycle of stem rust of Wheat was made by
  • Mehta. K.C
  • Mundkur. B.B
  • Payak.M.M
  • Nagarajan
Solar heat treatment of seeds is recommended for the control of
  • False smut of Paddy
  • Downy mildew of ragi
  • Grain smut of sorghum
  • Loose smut of Wheat
Tundu disease of Wheat is caused by
  • Anguinatritici
  • Corynebacterium tritici
  • Both a & b
  • None of these
Flag smut of wheat is caused by
  • Ustilagotritici
  • Urocystistritici
  • Ustilagohordei
  • Ustilago nuda
The foul smell of bunt infected wheat is due to
  • Trimethyl amine
  • Ammonia
  • Ethylene
  • Trieethyl amine
Sugarcane ratoon stunting is caused by
  • Phytoplasmas
  • Viroids
  • Cavibacterxylisub spxyli
  • Virus
Colletotrichum falcatum
  • Anthracnose of chilli
  • Sett rot of sugarcane
  • Red rot of sugarcane
  • Anthracnose of grapes
Pine apple smell is noticed in sugarcane due to a disease
  • Redrot
  • Sett rot
  • Wilt
  • Ring spot