Rice Part 1
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Question No. 1
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What is the botanical name for rice?
A.
Oryza sativa
B.
Oryza glaberima
C.
Both A & B
D.
None of these
Question No. 2
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To which family does the rice plant belong?
A.
Gramineae
B.
Poaceae
C.
Grass family
D.
All of these
Question No. 3
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Where did rice originate?
A.
Southeast Asia
B.
USA
C.
Indo-Burma
D.
Both A & C
Question No. 4
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When is Aus rice typically sown?
A.
June-July
B.
March-April
C.
April-May
D.
May-June
Question No. 5
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Another name for Aus rice is...
A.
Aman rice
B.
Boro rice
C.
Autumn rice
D.
None of these
Question No. 6
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What is the sowing period for Aman rice?
A.
June-July
B.
March-April
C.
May-June
D.
December-January
Question No. 7
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The ideal sowing time for Boro rice is...
A.
November-December
B.
December-January
C.
October
D.
July-August
Question No. 8
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Aman rice is also referred to as...
A.
Kharif rice
B.
Winter rice
C.
Both A & B
D.
None of these
Question No. 9
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Which term is used to describe Boro rice?
A.
Summer rice
B.
Winter rice
C.
Kharif rice
D.
None of these
Question No. 10
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In which type of rice is lodging (stem bending) less likely to occur?
A.
Indica rice
B.
Japonica rice
C.
Javanica rice
D.
All of these
Question No. 11
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A panicle is the inflorescence of which crop?
A.
Rice
B.
Lentil
C.
Urd
D.
Soybean
Question No. 12
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What are the lemma and palea of a rice grain collectively called?
A.
Hull
B.
Hull-lemma
C.
Palea-hull
D.
None of these
Question No. 13
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In the SRI system of rice cultivation, what does the 'S' stand for?
A.
System
B.
Shallow
C.
Same
D.
None of these
Question No. 14
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The SRI concept increases rice productivity by changing the management of...
A.
Plant
B.
Soil
C.
Water & nutrients
D.
All of these
Question No. 15
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In which country was the SRI method first developed?
A.
China
B.
USA
C.
Madagascar
D.
USSR
Question No. 16
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What year was the SRI system developed?
A.
1963
B.
1983
C.
1945
D.
1993
Question No. 17
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Who developed the SRI system?
A.
Fr. H. D Launie
B.
H. D. Peter
C.
M. S. Swaminathan
D.
N. E. Borlaug
Question No. 18
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What is the typical yield increase of rice when adopting the SRI method?
A.
50-60%
B.
30%
C.
50%
D.
50-90%
Question No. 19
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What type of plant is rice in terms of light sensitivity?
A.
Short-day plant
B.
Long-day plant
C.
Day-neutral plant
D.
None of these
Question No. 20
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In which of the following does self-pollination occur?
A.
Bajra
B.
Mustard
C.
Jawar
D.
Paddy
Question No. 21
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What is the test weight of Basmati rice?
A.
24 gm
B.
26 gm
C.
22 gm
D.
21 gm
Question No. 22
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What is the cardinal temperature for rice growth?
A.
15-20°C
B.
20-25°C
C.
40-45°C
D.
30-32°C
Question No. 23
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What is the typical hulling percentage of rice?
A.
60-65%
B.
30-50%
C.
80-85%
D.
45-55%
Question No. 24
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Which of the following is considered the first high-yielding rice variety?
A.
NT-1
B.
Jaya
C.
NR-8
D.
TN-1
Question No. 25
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Jagannath is a mutant variety of...
A.
Rice
B.
Wheat
C.
Barley
D.
Oat
Question No. 26
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Jagannath is a mutant variety of which specific rice cultivar?
A.
TN-1
B.
T-14
C.
TN-41
D.
TN-141
Question No. 27
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Which institution developed the world's first high-yielding rice variety?
A.
ICAR
B.
IARI
C.
IRRI
D.
CRRI
Question No. 28
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Which country is the world's largest exporter of rice?
A.
USA
B.
China
C.
India
D.
Thailand
Question No. 29
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In which Indian state was the SRI system first introduced?
A.
Punjab
B.
Tamil Nadu
C.
Haryana
D.
West Bengal
Question No. 30
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Which rice variety was released by the private sector?
A.
PHB-30
B.
PHB-71
C.
Jaya
D.
Ratna
Question No. 31
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Which is the most critical stage of rice growth?
A.
Tillering
B.
Jointing
C.
Rooting
D.
Booting
Question No. 32
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What is the fruit of the rice plant called?
A.
Achene
B.
Grain
C.
Cereal
D.
Caryopsis
Question No. 33
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Which nitrogen fertilizer is most commonly used for rice?
A.
Ammonium sulphate
B.
Calcium sulphate
C.
Urea
D.
DAP
Question No. 34
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What nutrient deficiency causes 'white eye' in rice?
A.
Ca
B.
Mg
C.
S
D.
Fe
Question No. 35
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Which of the following is considered a killer disease of rice?
A.
Bacterial blight
B.
Tungo virus
C.
Gram leaf hopper
D.
Both A & B
Question No. 36
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How many chromosomes (2n) does the rice plant have?
A.
42
B.
24
C.
36
D.
56
Question No. 37
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Which crop has a chromosome number (2n) of 24?
A.
Bajra
B.
Ragi
C.
Wheat
D.
Rice
Question No. 38
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Which gas is emitted from rice fields?
A.
CH4
B.
CH3
C.
CO2
D.
CO
Question No. 39
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The disease 'Akiochi' in rice is caused by...
A.
Blight
B.
Leaf spot
C.
Root rot
D.
H2S
Question No. 40
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What is the highest cause of nitrogen loss in rice fields?
A.
Leaching
B.
Run-off
C.
Percolation
D.
Denitrification
Question No. 41
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The Paira and Utera cropping systems are related to which crop?
A.
Wheat
B.
Rice
C.
Barley
D.
Bajra
Question No. 42
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A puddler is a tool related to which crop?
A.
Wheat
B.
Rice
C.
Barley
D.
Bajra
Question No. 43
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What is the term for the hydrothermal treatment of rice grains before milling?
A.
Boiling
B.
Parboiling
C.
Water treatment
D.
None of these
Question No. 44
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Which vitamin is preserved by parboiling rice?
A.
Vitamin C
B.
Vitamin D
C.
Vitamin B
D.
Vitamin B12
Question No. 45
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What is the seed rate per square meter for the Dapog method of rice nursery preparation?
A.
3-4 kg
B.
10 kg
C.
15 kg
D.
8 kg
Question No. 46
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How much area is required for seedling preparation using the Dapog method?
A.
40-50 m²
B.
70-80 m²
C.
75-85 m²
D.
25-30 m²
Question No. 47
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Which rice variety is known as the 'Miracle rice of India'?
A.
Padma
B.
Pusa RH-10
C.
Sita
D.
Jaya
Question No. 48
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What is the gene responsible for dwarfness in rice?
A.
N-10
B.
Teasinate
C.
Oryzin-10
D.
Dee-geo-woo-gene
Question No. 49
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Khaira disease in rice is caused by the deficiency of which nutrient?
A.
Fe
B.
B
C.
P
D.
Zn
Question No. 50
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What is the optimum soil pH for growing rice?
A.
7-8
B.
6-7
C.
3-4
D.
4-6
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