Plants take nitrogen from the soil in the form of
(a) Nitrate
(b) Ammonium
(c) Ammonia
(d) Both (a) and (b)
(e) None of these
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Agriculture & Forestry
Barnyard grass is an important weed of
(a) Maize
(b) Rice
(c) Wheat
(d) Sunflower
(e) None of these
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The first carboxylation enzyme in C4 plants is
(a) Rubisco
(b) Carbon anhydrase
(c) Phosphenol pyruvate carboxylase
(d) Rubisco activase
(e) None of these
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Sorghum inflorescence is called
(a) Panicle
(b) Flower
(c) Ear
(d) Spike
(e) None of these
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Soil salinity can be rectified with
(a) Urea
(b) Ammonium Sulphate
(c) Sodium Chloride
(d) Gypsum
(e) None of these
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Tikka disease is major pathogenic threat in
(a) Wheat
(b) Apple
(c) Sorghum
(d) Groundnut
(e) None of these
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Insects have
(a) 4 legs and 2 wings
(b) 8 legs and 4 wing
(c) 6 legs and 4 wings
(d) 4 legs and 4 wings
(e) None of these
Rhizobium belongs to
(a) Nitrogen fixing bacteria
(b) Amonifying bacteria
(c) Nitrifying bactyeria
(d) Denitrifying bacteria
(e) None of these
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In genetics the appearance of an attribute of living organism is termed as
(a) Dominant
(b) Phenotype
(c) Recessive
(d) Genotype
(e) None of these
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The vector of cotton leaf curl virus in Pakistan is considered as
(a) Jassid
(b) Aphid
(c) Pink boll worm
(d) White fly
(e) None of these
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