Question

Transplanted seedlings of Pinus often get killed because of

• A. Change of temperature
• B. Damage of leaves
• C. Change in soil deficiency of mycorrhizae
• D. Non availability of required minerals

Answer 1

Answer: (C)

Change in soil deficiency of mycorrhizae

Transplanted seedlings of pinus often get killed because of lack of mycorrhizae. The pinus roots donot have root hair for absorption of water and minerals from the soil. So, they form mycorrhizae to increase the absorption of water and minerals from the soil. It is a symbiotic relationship between fungi and plants. The fungi colonizes the root and increases the water absorption and plant provides the fungus with carbohydrate produced during photosynthesis.

So, the correct answer is option C.