Question

Girdling is carried in fruit plants in order to
a. Reduce transpiration
b. Increase transpiration
c. Increase fruit yield
d. Both (b) and (c)

Answer 1

Answer:

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Explanation:

Girdling used to be well implemented in citrus production in many countries around the world and for various objectives (Agustí, 2000). This practice causes interruption of phloem transport from the leaves to the roots which results in increased assimilate availability at the canopy which consequently increases fruit set, fruit size and final yield and fruit quality. However, repeated girdling has a negative long-term effect on tree vigor and longevity. Therefore, girdling is rarely practiced nowadays, as more friendly techniques such as use of growth regulators have been proven to be as efficient, particularly when the right regulator is used at the optimal concentration and physiological stage of the target organ (El-Otmani et al. 2000; El-Otmani, 2006).