The deficiency symptoms of N, K, Mg are first observed in

(1) Both in young and old parts

(2) Only in young parts

(3) First in old parts

(4) First in young parts

Subtopic:  Mineral Deficiency & Toxicity |
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Why does S and Ca deficiency not found in older parts first?

(1) As they are immobilizable

(2) As they are very abundant in older parts

(3) As newer parts are already deficient

(4) Both A and B

Subtopic:  Mineral Deficiency & Toxicity |
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The knowledge of deficiency symptoms of mobilizable and immobilizable substances actually helps in

(1) Horticulture

(2) Agriculture

(3) Both A and B

(4) Pisciculture

Subtopic:  Mineral Deficiency & Toxicity |
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Chlorosis is not

(1) Loss of chlorophyll

(2) Leading to yellowing of leaves

(3) Deficiency of elements N, K, Mg, S, Fe, Mn, Zn and Mo

(4) Accumulation of mutated chlorophyll

Subtopic:  Mineral Deficiency & Toxicity |
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Necrosis is not caused by deficiency of

(1) Ca, K

(2) Mg, Cu

(3) Cu, Mg

(4) K, Zn

Subtopic:  Mineral Deficiency & Toxicity |
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Which of the following elements does not cause both an inhibition of cell division and delay in flowering if their concentration in plants is low?

(1) N

(2) K

(3) S

(4) Mo

Subtopic:  Mineral Deficiency & Toxicity |
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The following statements are correct except

(1) Different plants respond differently to the deficiency of the same element

(2) The deficiency of any element can cause multiple symptoms and that the same symptoms can be caused by the deficiency of other elements as well

(3) Lack of N, K, S, Mo is responsible for cell division

(4) There is a narrow range of concentration at which elements are optimum

Subtopic:  Mineral Deficiency & Toxicity |
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Any mineral ion concentration in tissues that reduces the dry weight of tissues by about 10 per cent is considered

(1) Deficient

(2) Sufficient

(3) Toxic

(4) Efficient

Subtopic:  Mineral Deficiency & Toxicity |
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Which of the following are symptom of Mn toxicity?
P. Appearance of brown spots surrounded by chlorotic veins
Q. Mn competes with Fe and Mg for uptake
R. Competes with Mg for binding with enzymes
S. Inhibits calcium translocation in shoot apex
T. It causes deficiency of Mg and Ca
U. It causes Chlorosis
V. It causes Necrosis
W. It causes inhibition of cell division
Which of the above are correct?
1. P, Q, R, S, T, U, V,
2. R, S, T, U, V, W
3. P, Q, R, S, T
4. Q, V, W

Subtopic:  Mineral Deficiency & Toxicity |
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The movement of ions is usually called

(1) Pressure Flow

(2) Flux

(3) Diffusion

(4) Osmosis

Subtopic:  Hydroponics & Aeroponics |
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