SORGHUM
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Question No. 1
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What is the primary center of origin for the sorghum crop?
A.
America
B.
India and Africa
C.
South America
D.
Europe
Question No. 2
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Which soil type is best suited for sorghum cultivation?
A.
Clay loam
B.
Loam
C.
Sandy loam
D.
Gravelly soil
Question No. 3
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What is the typical seed rate for sorghum?
A.
8-10 kg/ha
B.
10-12 kg/ha
C.
15-18 kg/ha
D.
20-25 kg/ha
Question No. 4
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What is the ideal temperature range for sorghum growth?
A.
21-37°C
B.
26-30°C
C.
20-25°C
D.
15-20°C
Question No. 5
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Which hybrid sorghum variety is particularly suitable for mixed cropping systems?
A.
CSH1
B.
CSH2
C.
CSH6
D.
CSH7
Question No. 6
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Which sorghum varieties are considered short-duration and suitable for rainfed conditions?
A.
CSH1
B.
CSH3
C.
Both a & b
D.
CSH4
Question No. 7
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Which management practice is often the most challenging in sorghum cultivation?
A.
Fertilizer management
B.
Weed management
C.
Water management
D.
Pest management
Question No. 8
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Sorghum is known as a 'camel crop' due to its ability to:
A.
Grow in sandy soil
B.
Resist drought conditions
C.
Grow tall
D.
Produce high yields
Question No. 9
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What is the recommended seed rate for kharif (monsoon) season sorghum?
A.
8-10 kg/ha
B.
10-12 kg/ha
C.
15-20 kg/ha
D.
20-25 kg/ha
Question No. 10
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When is the most suitable time for sowing sorghum in North India?
A.
June 1st week
B.
June last week
C.
July 1st week
D.
July last week
Question No. 11
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Where is the Directorate of Sorghum Research located in India?
A.
Cuttack
B.
Coimbatore
C.
Hyderabad
D.
Bangalore
Question No. 12
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What is the most common method of planting sorghum in India?
A.
Direct seeding in rows
B.
Transplanting on raised beds
C.
Direct seeding in puddled beds
D.
Transplanting in standing water
Question No. 13
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Which sorghum variety shows high tolerance to the parasitic weed Striga?
A.
SPV-104
B.
SPV-922
C.
SAR-2
D.
CSH-5
Question No. 14
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What is the test weight of sorghum grains?
A.
20-25 g
B.
25-30 g
C.
30-35 g
D.
70-72 g
Question No. 15
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Which crop is known to cause the phenomenon of 'soil sickness'?
A.
Maize
B.
Sorghum
C.
Linseed
D.
Both b and c
Question No. 16
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Which crop is often referred to as the 'King of coarse cereals'?
A.
Bajra
B.
Sorghum
C.
Maize
D.
Rice
Question No. 17
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Which sorghum variety is suitable for both grain and fodder purposes?
A.
CSV 15
B.
CSH 13
C.
Both a & b
D.
SPV 462
Question No. 18
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What is the critical stage of sorghum where drought causes the most significant yield reduction?
A.
Flowering
B.
Grain filling
C.
Seedling
D.
Both a & b
Question No. 19
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Which of the following herbicides are used in sorghum cultivation?
A.
Pendimethalin
B.
2,4-D
C.
Atrazine
D.
All of these
Question No. 20
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What is the right time to harvest sorghum?
A.
150-160 days
B.
180-190 days
C.
100-115 days
D.
60-80 days
Question No. 21
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Which of the following is a variety of sweet sorghum?
A.
CSV 15
B.
CSH 13
C.
SPV 462
D.
RSVV 46
Question No. 22
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Higher sorghum yields can be achieved by:
A.
Using a higher dose of phosphate
B.
Providing an adequate amount of Nitrogen
C.
Not applying any nitrogen
D.
Closer planting
Question No. 23
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What type of inflorescence does sorghum have?
A.
Siliqua
B.
Head
C.
Ear
D.
Spikelet
Question No. 24
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What is the recommended sowing depth for sorghum?
A.
1-2 cm
B.
3-4 cm
C.
4-5 cm
D.
6-7 cm
Question No. 25
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What is the typical protein content of sorghum grain?
A.
25-30%
B.
15-20%
C.
10-12%
D.
5-8%
Question No. 26
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In sorghum, a 'dead heart' with more side tillers is a characteristic symptom of which pest?
A.
Shoot fly
B.
Sorghum midge
C.
Stem borer
D.
Ear head bug
Question No. 27
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The presence of holes at the base of the peduncle is caused by which pest?
A.
Stem borer
B.
Midge
C.
Shoot fly
D.
Termites
Question No. 28
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What is the toxic limit of HCN (hydrogen cyanide) in sorghum leaves?
A.
100 ppm
B.
200 ppm
C.
400 ppm
D.
600 ppm
Question No. 29
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When did the All India Coordinated Sorghum Improvement Project start?
A.
1969
B.
1965
C.
1972
D.
1980
Question No. 30
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Which of the following is a dual-purpose sorghum variety?
A.
CSV 1
B.
CSV 13
C.
CSH 1
D.
CSH 2
Question No. 31
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What is the typical sugar content of sweet sorghum stalks?
A.
6-7%
B.
8-10%
C.
10-15%
D.
20-25%
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