Location: Colombia
Comparative Analysis of Water Stress Regimes in Avocado Plants during the Early Development Stage
The avocado cv. Hass requires a suitable rootstock for optimal development under water stress. This study evaluated the performance of two avocado rootstocks (ANRR88 and ANGI52) grafted onto cv. Hass under four water stress conditions, 50% and 25% deficit, and 50% and 25% excess during the nursery stage. Plant height, leaf area (LA), dry matter (DM), and Carbon (OC) content in the roots, stems, and leaves were measured. Root traits were evaluated using digital imaging, and three vegetation
IS-SAR: an irrigation scheduling web application for Hass avocado orchards based on Sentinel-1 images
As the Hass avocado crop expands exponentially in Colombia, concern about its increasing water use is on the rise. This research aimed to develop IS-SAR, a free-access web application to schedule irrigation for Valle del Cauca’s Hass growers. We calibrated the water cloud (WCM) and artificial neural network (ANN) models using field data measurements from Hass avocado orchard plots in Valle del Cauca (Colombia) and Sentinel 1 (S1) satellite imagery measurements and evaluated their performance
Critical overview of the expansion of Hass avocado plantations in Salamina, northern Caldas, Colombia
This paper sheds light on the broader impacts of high-value commodity crops in the tropics by examining critically the rapid expansion of Hass avocado plantations (HAP). Using Salamina as a case study, this paper provides empirical evidence of local impacts and highlights the need for more sustainable and equitable governance strategies to manage emerging socio-economic and environmental challenges. HAP are transforming Salamina's traditional landscape by seizing considerable areas for avocado cultivation
Spatial Analysis of Presence, Injury, and Economic Impact of the Melolonthidae (Coleoptera: Scarabaeoidea) Complex in Avocado Crops
Beetle insect species classified within the Melolonthidae complex (Coleoptera: Scarabaeoidea) are a serious pest in several crops around the world including avocado (Persea americana Mill). The present work focused on determining the spatial behavior of the Melolonthidae complex of beetles and determined the economic impact in avocado crops in Antioquia, Colombia, South America. Beetle presence and damage produced in both foliage and fruits were quantified during 3 years for each avocado tree tested
Socio-economic and technological typology of avocado cv. Hass farms from Antioquia (Colombia)
A typology of avocado cv. Hass farms was constructed based on information collected from productive units in Antioquia, Colombia. The study aimed to provide key information about the farms for those involved in the design of programs and public policies directed to growers. The data were scrutinized through Multiple Correspondence Analysis (MCA) and Cluster Analysis. The sample was made up of 214 growers of the crop. Quantitative and qualitative variables were employed for the MCA, which rendered
Avocado cv. Hass Needs Water Irrigation in Tropical Precipitation Regime: Evidence from Colombia
The primary natural source of water for the Hass avocado crop in the tropics is precipitation. However, this is insufficient to provide most crops’ water requirements due to the spatial and temporal variability. This study aims to demonstrate that Hass avocado requires irrigation in Colombia, and this is done by analyzing the dynamics of local precipitation regimes and the influence of Intertropical Convergence Zone phenomena (ITCZ) on the irrigation requirement (IR). This study was carried out