Agriculture Plant Pathology
Quiz 9
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81) Which of the following is pathotype specific in plants?
(A) Vertical resistance
(B) horizontal resistance
(C) Both the above
(D) None of the above
Correct Answer :Vertical resistance
82)Varieties of a host species used to identify physiological races of a pathogen are
known as:
(A) Differential hosts
(B) host testers
(C) Both the above
(D) None of the above
Correct Answer :Both the above
83) The incompatible reaction is found in
(A) Biotrophs
(B) Obligate parasites
(C) Facultative parasites
(D) Both Biotrophs & obligate parasites
Correct Answer :Both Biotrophs & obligate parasites
84) In India (1914), first quarantine regulation was passed by government
under the title ?
(A) Destructive Insects & Pests Act (DIP ACT)
(B) Federal Quarantine Acts
(C) Seed certification Act
(D) All of the above
Correct Answer :Destructive Insects & Pests Act (DIP ACT)
85) Physical methods of eradicating pathogen inoculation is:
(A) Heat treatment
(B) Refrigeration
(C) Radiation
(D) All of the above
Correct Answer :All of the above
86) Which of the following are protectant fungicides?
(A) Bordeaux mixture
(B) Burgundy mixture
(C) Chaubattia paste
(D) All of the above
Correct Answer :All of the above
87) First dithio carbonate fungicide, discovered by Tisdale (1934), was;/
(A) Maneb
(B) Thiram
(C) Zeram
(D) Zineb
Correct Answer :Thiram
88) Inorganic mercury compounds used to eradicate plant pathogens are:
(A) HgCl2
(B) Hg2cl2
(C) C2H5Hgcl2
(D) both HgCl2 & Hg2cl2
Correct Answer :both HgCl2 & Hg2cl2
89) Foliar application of this fungicide is a waste as it decompose in light, the
fungicide is:
(A) Chloranil
(B) Dichlone
(C) Dinocap
(D) Dichloran
Correct Answer :Chloranil
90) IUPAC name of dinocap is:
(A) 2, 6dichloro4nitroaniline
(B) 2(1methyl hepthyl)46
(C) Tetrachloroisophthalonitril
(D) 2heptadecyl glyoxalidine
Correct Answer :2(1methyl hepthyl)46
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| Plant Pathology |
What is plant pathology?
Plant Pathology is defined as the study of the organisms and environmental conditions that cause disease in plants, the mechanisms by which this occurs, the interactions between these causal agents and the plant (effects on plant growth, yield and quality), and the methods of managing or controlling plant disease. It also interfaces knowledge from other scientific fields such as mycology, microbiology, virology, biochemistry, bioinformatics, etc. More ...
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