Vol. 8, Issue 8, Part R (2024)

Abstract: The subtropical zone, situated between the temperate and tropical zones, is known for producing subtropical fruits. Cultivating these fruits can be challenging and less profitable due to various factors, with fruit drop being a major issue. Several factors contribute to fruit drop, including plant stress from nutrient deficiencies, pest infestations, high temperatures, and excessive pruning. Additionally, premature ethylene production can cause physiological fruit drop. Other causes include poor pollination, self-incompatibility, embryo abortion, and competition among developing fruits. To manage the fruit drop effectively and ensure a successful harvest, growers should focus on several key practices. Implementing effective irrigation and cultural practices, providing adequate nutrients, using mulch to retain moisture and regulate soil temperature, and applying plant growth regulators and micronutrients can all help improve fruit set and retention. By addressing these factors, growers can enhance fruit retention and increase their yields.