Q13 / 180 · AIIMS 2007 · Botany

Which of the following is correct set of micronutrient for plants?

  • A
    \(\mathrm{Mg}, \mathrm{Si} \mathrm{Fe}, \mathrm{Cu} \mathrm{Ca}\)
  • Correct answer
    B
    \(\mathrm{Cu}, \mathrm{Fe}, \mathrm{Zn}, \mathrm{B}, \mathrm{Mn}\)
  • C
    \(\mathrm{Mg}, \mathrm{Fe}, \mathrm{Zn}\),
  • D
    Mo, \(\mathrm{Zn}, \mathrm{Cl}, \mathrm{Mg}\), Ca

Solution

Plants require nutrients for proper growth and development. 16 elements are necessary for plants and are called essential elements as \(\mathrm{C}, \mathrm{H}, \mathrm{O}, \mathrm{N}, \mathrm{P}, \mathrm{S}, \mathrm{K}\), \(\mathrm{Mg}, \mathrm{Ca}, \mathrm{Fe}, \mathrm{Cu}, \mathrm{B}, \mathrm{Zn}, \mathrm{Mn}, \mathrm{Mo}\) and \(\mathrm{Cl}\). These essential elements are categorised into 2 groups as macro elements and micro elements. Marco elements are required by plants in larger amounts eg., \(\mathrm{C}, \mathrm{H}, \mathrm{O}, \mathrm{N}, \mathrm{S}\), \(\mathrm{P}, \mathrm{K}, \mathrm{Ca}, \mathrm{Mg}\). Microelements or trace elements are required by plants in very small amounts ie in traces \(e g\)., \(\mathrm{Fe}, \mathrm{Cu}, \mathrm{B}, \mathrm{Mn}, \mathrm{Ni}\), Mo and \(\mathrm{Cl}\).

Hence, the correct answer is option: 'B'.

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