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Which of the following elements is considered as beneficial elements in higher plants? |
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a) |
Sodium and iron |
b) |
Silicon and potassium |
c) |
Cobalt and selenium |
d) |
All of these |
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Which of the following elements is considered as beneficial elements in higher plants? |
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|
a) |
Sodium and iron |
b) |
Silicon and potassium |
c) |
Cobalt and selenium |
d) |
All of these |
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(c) Cobalt and selenium. The number of essential elements known for the growth and reproduction of plants is 17 |