question_answer 59)

  In a girdled plant, when water is supplied to the leaves ab.ove the girdle, leaves may remain green for sometime then wilt and ultimately die. What does it indicate?

Answer:

                  In a girdled plant, when water is supplied to the leaves above the girdle, leaves may remaingreen for sometime because leaves can synthesise their own carbohydrate food throughphotosynthesis, .then wilt due to non-availability of water.          The system of xylem vessels from root to the leaf vein can supply the needed water, duringgirdling there is a possible loss of xylem vessels and the water supply cuts off, resulting indeath of plant.