For a critical study of secondary growth in plants, which one of the following pairs is suitable? (a) Teak and pine (b) Deodar and fern (c) Wheat and maiden hair fern (d) Sugarcane and sunflower
Option A Secondary growth is observed in dicots and gymnosperm. It is not observed in pteridophytes and rarely observed in monocots. Secondary growth results in increase in girth or diameter of the stem by formation of secondary tissue by the activity of lateral meristem. So for study of secondary growth, teak (angiosperm) and pine (gymnosperm) are best suited.
