Vol. 11, Special Issue 2 (2022)

Author(s):
Dr. Pankaj Nautiyal, Udit Sharma, Vriksha Singh, Sakshi Goswami, Khusboo Agrawal, Vaishali Krishali, Ritu Bisht, Harsh Mittal, Rinky Mehta and Archit Pokhriyal

Abstract:
Fruit thinning and Plant Growth Regulators (PGRs) in Fruit Thinning can be used with some precision to control bloom thinning fruits, regulate growth, and adjust harvest season. Fruit thinning is done at early stage of fruit development to improve the quality of fruits as well as yield of the trees as whole. Depending upon cultivars & characteristics of fruits different methods viz. hand, mechanical & chemical things are carried out. Use of PGR like NAA, GA3, etc. has been found to be an effective & economic tool of fruit thinning as well as delaying pre-harvest fruit drop. The current review is based on purpose, method and mechanism of fruit thinning. An overabundance of fruits per tree can result in small fruits, poor quality and several more issues. For fruit growers, hand thinning is the most common and important method since the time farming started, followed by mechanical thinning and chemical thinning. A lack of photosynthates and improper Abscisic Acid (ABA) content may have caused excessive abscission of mangosteen flower and fruit, this is due to the lower sugar content. Therefore, in this review paper we have briefly discussed the objective, purpose, method, function of fruit thinning and role of Plant Growth Regulators (PGRs) in Fruit Thinning.