Gibberellin treatments enhance foliar coverage, fruitlet retention, and next-season yield in young ‘Hass’ avocado trees: field measurements and UAV-based remote sensing
Tal Shahar·Vered Irihimovitch·L. Winer·Eti Keinan·Tarin Paz-Kagan·Tamir Ifrach·Tamir Caras·Shai Zaidi·Nathan Levi
In evergreen avocado (Persea americana Mill.), flowering occurs in parallel with shedding of the previous season’s mature leaves, leaving partially leafless trees highly exposed to heat-induced damage in the spring. Foliar application of gibberellins (GAs) is known to increase vegetative growth while reducing flowering in various fruit trees. Here, we examined the effects of autumn GA3 treatment on different growth parameters of young ‘Hass’ avocado trees over two years. Our results showed that