ARS 2017 / ASRB NET
2018(1)
1.
1st
viroid disease is Potato spindle tuber
viroid
2.
Indian
stem rust rules were given by Nagarajan
and singh
3.
Hump
beaked uredospore produced by rust genera is Hemileia
4.
Father
of Molecular plant pathology is Noel
Kein
5.
1st
imperial mycologist in India is E. J.
Butler during 1905
6.
Chaubattia
paste composition are 800gm: 800gm: 1lit
(copper carbonate -800 g, red lead -800 g and raw
linseed oil or lanolin -1littre)
7.
The
mode of action of Benzimidazole fungicides are inhibit the beta tubulin biosynthesis
8. The mode of action of Strobulurin
fungicides are inhibit electron transfer in mitochondria, disrupting metabolism.
9.
The
most sensitive technique used for detection of plant pathogen is ELISA (10ng/ml)
10.
Pin
wheel inclusion bodies produced by which plant viral genus potyvirus
11.
Tulip
breaking virus belong to the genus of Potyvirus
12.
Grape
vine fan leaf virus is transmitted by Xiphenema index (Nematode)
13.
The
type / mode of transmission of PRSV through Aphids (non persistant manner)
14.
Rice
tungro virus contains what are the 2 viral particles ?
Rice tungro spherical virus (a (+) sense RNA virus) and
Rice tungro bacilliform virus (RTBV) with a genome ds DNA.
15.
Mycovirus
contains the nucleic acid is ds RNA
(majarity)
·
Geminivirus – ss DNA
16.
Viruses
which are killing the gram negative bacteria is Bacteriophges (Twort, Herelle, 1915, 1917)
17.
Bacteria
that infect another bacteria is known as B’dellovibrio
(stlop, 1962)
18.
Bacterial
ribosomes are present in cytoplasm
19.
Most
of the plant pathogenic bacteria are gram -ve
20.
Low
G+C content gram positive bacterial division is Phytoplasma (23 – 27.5)
21.
Bacterial
blight of pomegranate affected plant parts are leaves, fruits
22.
1st
plant clone resistant gene is HM1
23.
Ireland
late blight of potato is caused by Phytophthora infestans
24.
Sugarcane
ratoon stunting disease is caused by Leisfsonia xyli subsp. xyli
25.
Banana
moko wilt caused by which race of bacterium race 2
26. Apple proliferation is caused by Phytoplasma
27.
1st
plant pathogenic bacterium completely genome sequence is Xyella fastidiosa, 2000
(Simpson)
28.
1st
plant pathogenic fungi completely genome sequence is Magnporthe grisea, 2005 (Dea et al)
29.
The
suitable RH favour for rice blast disease is 90 – 95%
30.
Downy
mildew of cumbu is otherwise called as green
ear of cumbu
31.
Downy
mildew of miaze is otherwise called as craizy
top of maize
32. Downy mildew symptoms on upper
surface is pale,
chlorotic, broad streaks extending from base to tip of leaves. At the
advancement of disease, the leaf streaks turn brown and the leaves become
shredded longitudinally
33.
Downy
mildew genera can be classified based on
34.
Bird’s
eye symptoms produced on which disease of grapes? anthracnose
35.
Anastomosis
are commonly occur in which fungi ]
36.
Bomby
fruit of papaya is caused by Ascochyta caricae
37.
Citrus
greening indicator plant is Sweet orange
(Citrus sinensis)
38.
The indicator plant for PSTVd is Tomato (Solanum lycopersicum)
39.
Ammomum
subulatum is act as collateral host for which disease ?
40.
Citrus
stem pitting and necrosis of vein caused by which disease may cause loss
in tree vigor, CTV stem pitting isolate
41. Tuft of flagella occur at both ends
on which type of flagella Lopotrichous
42.
In
plains of India Phytophthora infestans survive
as infected tubers
43. Tetrazolium chloride is used for
culturing which plant pathogen BBTV
(banana bunchy top virus)
44.
Local
field pathogen population is called as Pathogen
population
45.
Ground
nut bud necrosis is transmitted by Trips
46.
Viral
disease can cause starch accumulation example is PVY (100 fold increase of starch)
47.
Mango
anthracnose under humid conditions the colour of the spore is ……………..
48.
Angular
leaf spot of cotton survive as ………………..
49.
1st
plant pathogen recognize in the world is Gaint
mistletoe (Dendropthoe or Loranthus)
50.
Single
ascus cleistothecium with dichotomously branched appendages in powdery mildew
genera is …….
51.
Hartig
nets are found in Ectomcorhizzare
52.
Stem
gall of coriander is caused by Protomyces
macrosporus
53.
Agrosin
K 84 is the BCA for which disease Agrobacerium tumefaciens
54.
Pore
size of laminar flow chamber is 0.3 µm
55.
Fungicide
which is applied prior to fungal infection is called as Protectant
56. Mode of action of triazole fungicide
is inhibit sterol biosynthesis
57.
Food
storage organ of bacteria is Poly β
hydroxyl butyrate
58.
Give
an example of both apoplast and symplast fungicide is Forsetl Al, metlaxal
59.
Agar
– agar is made from Red Algae (Gelidium spp)
60.
Birds
eye symptom appear on which disease of grapes Anthrancnose
61.
Broom
rape obligate parasite of lettuce, vegetable crop is Cuscuta
62.
Pierce’s
disease of grapevine is caused by Xylella fastidiosa
63.
Viroid
consists of nucleic acid is ssRNA
64.
Tobacco
necrosis satellite virus was 1st reported by Kassanis
65.
Shape
of bacterial growth curve is Bimodial
66.
Virus
strain used in cross protection is mild
strains
67. Time between disease infection and
symptom expression is called as incubation
period
68. Black heart of potato is caused by O2
deficiency
69.
Blister
blight of tea is caused by Exobasidium vexans
70.
Bitter
pit of apple is caused by imbalance
water supply
71.
White tip panicle of rice is caused by Aphelenchoides besseyi (nematode)
72.
Organomercurial
fungicide example is Cerasan and cerasan
wet
73.
The
most sensitive technique used for plant pathogen detection is ELISA
74.
What
are the plants are not sensitive to ozone damage ?
75.
Syringomycin
is the Antibiotic
76. Erwinia belongs to the family is Enterobacteriaceae
77.
Demicyclic
rust which stage is absent lack of
uredial stage
78. Tumour inducing principle of crown
gall is discovered by New and Kerr, 1972
79.
SAR
induced by external application of chemicals like Salysislic acid
80. White halo around brown spot of
tomato is the symptom of which disease
81. Cuscuta is the Total stem prasite
82.
EPIDEM
is the computer simulation model for which disease Early blight of tomato and potato
83.
Whitefly
transmitted virus comes under which group
84.
“V”
shaped chlorotic lesison produced by which cabbage disease Cabbge Yellowsis
85. Cotton rust is due to which
deficiency Potash deficiency
86.
Watery soft rot of carrot is caused by Erwinia caratovora sub sp. caratovora
87.
Foot
cell, phialides, vesicle found in which fungus Aspergillus
88.
Cosmetic fungicide is tridemorph
89.
Resistant
varieties are less common on which crops ?
90.
Kresek
stage occur in which disease Bacterial
bight of rice
91.
Khaira
disease can be managed by application of
Znso4
92.
Water
is a medium for preservation of fungal culture concept was given by …………….
93.
14
opines produced by which plant pathogenic bacterium ?
94.
Diene’s
stain produced the identification colour is blue colour
95. Vertifolia effect means loss of horizontal resistance during
breeding for vertical resistance
96.
PCR
technique for antibody detection is ………………..
97.
PR
proteins are accumulate in …………………
98.
Greenish
outgrowth on veins and veinlets due to …………………………
99.
Buck
eye rot of tomato occur in which stage of fruit
100.
Foot rot of lilium is caused by Rhizoctonia, Phytophthora, Pythium, Fusarium, and Cylindrocarpon species
101.
Sleepiness disorder of carnation is due to incurving or
curling of the petals
102.
Taro
blight of colacassia resistant variety is ……………..
103.
1st
avirulence gene act as elicitor is given by ……………
104.
Candidatus Phytoplasma occur in sieve phloem concept is
given by Doi et al
105.
Single
celled light colour conidia example is Ameroconidia
106.
Contagium
vivul fluidum concept is given by Beijernick
107.
Muriform
septations conidia example is Alternaria
108.
1st line defence mechanism of plant is Thick cell wall
109.
Chemical control to black tip of mango is Application of borax
110.
Loose
smut of wheat is Internally seed borne
pathogen
111.
Bacterial
blight of pea Pseudomonas syrinage pv.
pisi survive as …………………..
112.
L
form bacteria means Lack of cell wall
113.
RT-PCR
is used to detect the plant pathogens of living
and non-living cells (viable cells)
114.
Mutant
not synthesize essential metabolite means …………………
115.
Ampelomyces quesqualis is the BCA for which disease grapes powdery mildew
116.
1st
cloned plant toxin gene is Tab toxin
(Pseudomonas
syringae pv. tabaci)
117.
Gram
positive bacteria contain mucopeptide percentage is 85 %
118.
Gram negative bacterial lack of
which acid Lipotechoic acid
119.
Increased
respiration is due to binding and
unbinding of oxidative phosphorylation
120.
Budding spore is called as blastospores
121.
Endospore forming bacterial genus is Bacilus,
Clostridum
122.
Legislative
method of plant disease control is ………………….
123.
Collar
rot apple root stock resistant variety is ……………
124.
Critical
stage of fungicide spray for management for peach leaf curl is ……………..
125.
Citrus
gummosis occur in low temp is caused by …………………………..
126.
Autoclave
15 psi for 30 minutes at temperature is 121.6o
C
127.
Cucumber mosaic virus is transmitted by sap/ aphids
128.
Haploid sexual spore is ………………..
129.
Intracellular
PCPR is Bradorhizobium
130.
Prunus
necrotic ring spot is transmitted by Pollen
131.
ICTV
is started in the year is 1973
132.
Blossom
end rot of tomato is caused by Ca
deficiency
133.
Disease
dispersed by water splash is ……………..
134.
Hypersensitive
reaction occur in
135.
What
are the dye used in gram staining Methylene
blue
136.
Oyster
mushroom scientific name is Pleurotus sojar caju
137.
Fungicide
used as plant defence activator is Probenzole
*(might me some other too)
138.
Leaf
wetness period for apple scab is 9hrs
139.
Technique
to produce for virus free plant is meristem
tip cuture
140.
Basidiospore
of smut fungi are called as …………………
141.
Secondary
sporidia of Tilletia indica shape is
……………….
142.
Banana
Panama wilt symptoms on foliage are ……………….
143.
Banana
Fusarium oxysporum f.sp. cubense race III affects which crop
variety ?
144.
Stalk
rot of cauliflower can be survived as ……………….
145.
Viroid
replication through what are the enzymes RNA
polymerase II
146.
What
is the best method for plant viral resistance against viral diseases resistant varieties/
resistant line
147.
What
is the best method for seed treatment FIR
148.
Phytoplasma
are sensitive to Tetracyclin
149.
Epidemiological
model which are related to the time is ………………
150.
Viruses
are multiply in cytoplasm
151.
Give
an example of plant disease dispersal through rain splash ?
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