1995 - WAEC Agriculture Past Questions and Answers - page 3
21
Which of the following diseases of crops causes stunting in maize?
A
blast
B
rosette
C
blight
D
streak
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22
When individual crop with desired characteristic mostly favoured by the environment are chosen for breeding this type of breeding is referred to as
A
introduction
B
hybridization
C
line-breeding
D
selection
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23
Molasses is a major by-product obtained after the processing of
A
kenaf
B
sugarcane
C
cassava
D
pawpaw
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24
Rice bran is usually obtained from the paddy after
A
winnowing and boiling
B
threshing and winnowing
C
parboiling and threshing
D
harvesting and milling
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25
Yams stored in a barn should be inspected at least once a week to
A
remove rotten tubers
B
remove sprouts from yam tubers
C
prevent termite attack
D
prevent mouldiness in yam
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26
A major routine operation in cowpea production which normally starts from flowering stage is
A
weekly spraying with insecticides
B
folial application of liquid fertilizer
C
application of herbicides
D
routine application of NPK granulated fertilizer
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27
The mesocrap of an oil palm fruit is
A
nut
B
kernel
C
shell
D
seed
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28
Blackarm is a bacterial disease of
A
rice
B
cotton
C
citrus
D
cocoa
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29
The female sex hormone that is responsible for oestrus in farm animal is called
A
prolactin
B
progesterone
C
oxytocin
D
oestrogen
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30
The fertility of the soil is an important factor in the selection of site for a fish pond because a fertile soil will
A
encourage the growth of trees within the pond
B
stimulate growth of lower plants which are sources of food to fish
C
add mineralsto the water for the fishes resistance to diseases
D
prevent the pond from drying up
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