PLANT PHYSIOLOGY
MINERAL NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calcium
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Potassium
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Nitrogen
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Phosphorus
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Detailed explanation-1: -So the correct answer is ‘Calcium’.
Detailed explanation-2: -In the herbaceous plant, calcium is rapidly immobilized, whereas in the apple, calcium continues to move up the tree over a number of seasons. This secondarily translocated calcium comes from reserves in the root and lower shoot, and is a major source of calcium for the new growth at the beginning of the season.
Detailed explanation-3: -Calcium along with sulphur is most immobile element present in plants. Hence, deficiency symptoms of calcium and sulphur are first seen in young leaves. Calcium is present in the cell wall as calcium pectate, which cannot be readily mobilised. Hence, calcium is an immobile element.
Detailed explanation-4: -Calcium is the immobile element in plants.
Detailed explanation-5: -Calcium (Ca), sulfur (S), iron (Fe), boron (B) and copper (Cu) are immobile.