SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Which of the following is true regarding manganese toxicity in plants?

1)

Induction deficiencies of iron, magnesium and calcium

2)

Appearance of brown spots surrounded by chlorotic veins

3)

Inhibition of  ions translocation in the shoot apex

4)

All of the above


Question ID - 100280 :-

Which of the following is true regarding manganese toxicity in plants?

1)

Induction deficiencies of iron, magnesium and calcium

2)

Appearance of brown spots surrounded by chlorotic veins

3)

Inhibition of  ions translocation in the shoot apex

4)

All of the above

1 Answer
5876 Votes
3537

Answer Key : (4) -

The prominent symptoms of manganese toxicity is the appearance of brown spots surrounded by chlorotic veins.

It is important to know that manganese competes with iron and magnesium for its uptake by the plants and with magnesium for its binding with enzymes. Manganese also inhibits calcium translocation in shoot apex. Therefore, excess of manganese may induce deficiencies of iron, magnesium and calcium



Next Question :

A yo-yo, arranged as shown, rests on a frictionless surface.When a forces   is applied to the string, the yo-yo

a)

Moves to the left and rotates counterclockwise

b)

Moves to the right and rotates counterclockwise

c)

Moves to the left and rotates clockwise

d)

Moves to the right and rotates clockwise


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