Seed Growth and Maturation
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Question No. 1
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In wheat seeds, the maximum water content occurs at which stage after anthesis?
A.
35 days
B.
7-14 days
C.
14-21 days
D.
28 days
Question No. 2
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What is the primary reserve material accumulated in wheat seeds?
A.
Protein
B.
Oil
C.
Starch
D.
Sucrose
Question No. 3
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At what moisture percentage is wheat typically harvested at field maturity?
A.
15-20%
B.
6-10%
C.
2-5%
D.
12-15%
Question No. 4
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Soybean seeds achieve maximum dry weight at which time period after flowering?
A.
24-30 days
B.
35-42 days
C.
48-54 days
D.
60-65 days
Question No. 5
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During which period does maximum oil accumulation occur in soybean seeds?
A.
12-18 days
B.
24-42 days
C.
48-54 days
D.
18-24 days
Question No. 6
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What percentage range of protein is typically found in wheat seeds?
A.
20-25%
B.
5-8%
C.
10-14%
D.
15-18%
Question No. 7
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Which crop is considered an exception to the rule that protein is never the major seed component?
A.
Sunflower
B.
Soybean
C.
Lentil
D.
Chickpea
Question No. 8
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In soybean development, when is protein content at its maximum?
A.
24-30 days
B.
48-54 days
C.
12-18 days
D.
36-42 days
Question No. 9
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What happens to reducing sugars and sucrose in wheat seeds between 7-14 days after anthesis?
A.
They increase rapidly
B.
They remain constant
C.
They decline due to starch conversion
D.
They convert to protein
Question No. 10
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Seeds are classified as 'starchy' when they contain high amounts of which component?
A.
Protein and fat
B.
Carbohydrates
C.
Oil and protein
D.
Vitamins and minerals
Question No. 11
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What is the oil content range in sunflower seeds?
A.
10-20%
B.
25-35%
C.
40-55%
D.
60-70%
Question No. 12
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Which factor determines faster germination speed in wheat varieties?
A.
High protein content
B.
Early water loss during development
C.
High starch content
D.
Late maturation
Question No. 13
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What causes the initial high protein percentage in young soybean seeds?
A.
High oil content
B.
High non-protein nitrogen
C.
High starch content
D.
High water content
Question No. 14
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Field maturity is described as a characteristic that is:
A.
Universal for all crops
B.
Crop-specific
C.
Dependent on soil type
D.
Climate-independent
Question No. 15
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In soybean seeds at 42 days after tagging, what is the approximate oil content?
A.
14.94%
B.
19.94%
C.
21.40%
D.
17.81%
Question No. 16
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What is the starch content range typically found in maize seeds?
A.
50-60%
B.
60-65%
C.
70-75%
D.
80-85%
Question No. 17
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Which toxic substance is mentioned as being present in seeds?
A.
Cellulose
B.
Raffinose
C.
Glucose
D.
Fructose
Question No. 18
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When does oil accumulation begin to pick up significantly in soybean seeds?
A.
Before protein accumulation
B.
During protein accumulation
C.
After protein accumulation completes
D.
Simultaneously with protein
Question No. 19
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What is the sugar content range in wheat seeds?
A.
1-2%
B.
3-5%
C.
6-8%
D.
8-10%
Question No. 20
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Physiological maturity in seeds is achieved when they attain:
A.
Maximum size only
B.
Maximum water content
C.
Maximum dry weight, germinability and vigor
D.
Minimum moisture content
Question No. 21
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Which component shows negligible amounts in soybean seeds?
A.
Protein
B.
Oil
C.
Starch
D.
Fat
Question No. 22
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The fat content in chickpea seeds ranges from:
A.
0.5-1.0%
B.
3.1-5.8%
C.
18-22%
D.
10-15%
Question No. 23
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At 54 days after tagging, soybean seeds show which trend in oil content?
A.
Rapidly increasing
B.
Stable/slightly decreasing
C.
Rapidly decreasing
D.
Negligible amounts
Question No. 24
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Which seed type would be classified as 'fatty'?
A.
Wheat
B.
Lentil
C.
Rapeseed
D.
Chickpea
Question No. 25
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The dry weight increase in wheat seeds occurs rapidly over approximately how many days?
A.
20 days
B.
25 days
C.
35 days
D.
45 days
Question No. 26
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What happens to protein content in soybean seeds after 18 days of fertilization?
A.
Increases rapidly
B.
Remains constant
C.
Decreases
D.
Fluctuates randomly
Question No. 27
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Among legumes, which crop shows the highest protein content range?
A.
Lentil
B.
Chickpea
C.
Soybean
D.
All are equal
Question No. 28
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The term 'anthesis' in wheat development refers to:
A.
Seed germination
B.
Flowering stage
C.
Harvesting time
D.
Root development
Question No. 29
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Which statement about seed reserves is most accurate?
A.
All seeds have equal reserve distribution
B.
Protein is always the major component
C.
Reserve composition varies significantly among crop types
D.
Only carbohydrates serve as reserves
Question No. 30
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In the context of seed maturation, 'vigour' refers to:
A.
Seed size
B.
Germination quality and strength
C.
Water content
D.
Oil percentage
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