Nitrogen fertilisation is applied for growth, but its excess
A. hastens maturity
B. delays maturity
C. Improves colour
D. improves qality
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Function of leghaemoglobin in nitrogen fixation is
A. absorption of oxygen
B. nutrition of bacteria
C. absorption of light
D. All of the above
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Sucrose content in sugarcane decreases
A. if high rainfall occurs during the period of growth of the plant
B. if frost occurs during the period of ripening
C. if there is fluctuation in temperature during the period of growth of the plant
D. if there is high temperature during the time of ripening
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Match
List-I with
List-II and select the correct answer:
List-I (Plant)
List-II (Use)
a. Barley
1. Wine
b. Sugarcane juice
2. Beer
c. Grapes
3. Whisky
d. Molasses
4. Rum
A. a-3, b-4, c-1, d-2
B. a-1, b-4, c-2, d-3
C. a-4, b-2, c-3, d-1
D. a-2, b-4, c-1, d-3
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Which among the following is the oldest board under the department of commerce?
A. The Rubber Board
B. The Tea Board
C. The Coffee Board
D. The Tobacco Board
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Which one of the following is related to silviculture?
A. Culture of Hilsa
B. Culture of silver carp
C. Culture of oil-producing plants
D. Forest crops
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Hashish is obtained from a plant. From which part of the plant is it obtained?
A. Leaves
B. Stem
C. Exudate from leaves and female inflorescence
D. Exudate from stem and male inflorescence
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Consider the following
1. Birds
2. Dust blowing
3. Rain
4. Wind blowing
Which of the above spread plant diseases?
A. 1 and 3
B. 3 and 4
C. 1, 2 and 4
D. 1, 2, 3 and 4
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Silk is obtained from
A. mulberry tree
B. saliva of the silkworm
C. larvae of silkworm
D. cocoon of silkworm
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Biologically synthesised nano particles are used as a new eco-friendly technology, which has big possibility in cancer treatment. An extracts of plants is used in this technique, this plant is
A. Calotropis gigantea
B. Parthenium hysterophorus
C. Rice
D. Lemon grass
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Seaweeds are an important source of which one of the following?
A. Sulphur
B. Chlorine
C. Bromine
D. Iodine
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The biological process in which both aerobes and anaerobes degrade organic matter is
A. manuring
B. composting
C. digesting
D. nitrifying
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The tree popularly known as 'Green Gold', but which is an ecological disaster, is
A. Eucalyptus
B. Banyan
C. Pipal
D. None of these
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Which one of the following is responsible for the stimulating effect of tea?
A. Tannin
B. Steroid
C. Alkaloid
D. Flavonoid
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Growing more than one crop on a piece of land during a season is known as
A. uni cropping
B. multiple cropping
C. double cropping
D. triple cropping
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In coriander, the useful parts are
A. roots and leaves
B. leaves and flowers
C. leaves and dried fruits
D. flowers and dried fruits
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Which one of the following is not correctly matched?
A. Wheat ⟺ Phalaris minor
B. Potato ⟺ Late blight
C. Bajra ⟺ Ergot
D. Sugarcane ⟺ Powdery mildew
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Development of an egg without fertilisation is called
A. gametogenesis
B. parthenogenesis
C. oogenesis
D. metamorphosis
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Camellia sinensis is a plant that produces
A. tea
B. coffee
C. jute
D. sugarcane
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Yellow vein mosaic disease in okra, caused by
A. Aphids
B. Whitefly
C. Leafhopper
D. Fungi
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