Tag: Plant Health
Climatic and soil impacts on avocado (Persea americana L.) yield and quality in Southern Ethiopia: a comparative study
This study investigates the impact of climatic variables and soil characteristics on the fruit yield and quality of avocado (Persea americana L.) cultivars in Southern Ethiopia, focusing on six prominent varieties: Hass, Fuerte, Ettinger, Bacon, Pinkerton, and Nabal. Using data from Sidama and Wolaita regions, and examined how factors such as temperature, precipitation, soil pH, and organic matter influence avocado production. The analysis revealed significant regional differences, with Sidama consistently
Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.:B- Leaf Chemical Composition, Water Use Efficiency and Economical Returns
Avocado (Persea americana Mill.) is a globally important fruit crop, with the 'Hass' cultivar being the most widely cultivated. Water scarcity threatens the sustainability of avocado production in arid and semi-arid regions. During (2023–2024) field study was established to evaluate the effects of two soil absorbent materials biopolymer and zeolite applied at 500, 1000, and 1500 g/tree under three regulated deficit irrigation regimes (100%, 80%, and 70% of irrigation requirements, IR) on leaf chemical
Does green stem photosynthesis affect plant drought tolerance and recovery in avocado?
Woody plants with green stems may have advantages over non-green-stemmed plants in that extra photosynthetic carbon gain has the potential to improve plant drought tolerance and aid drought recovery. However, most studies relating to green stem photosynthesis and drought tolerance have been conducted on non-horticultural plants under natural growing conditions. We investigated whether avocado green stem photosynthesis enhances drought tolerance and recovery. We applied light exclusion and drought
Short-term spectral indication of the salinity effects on avocado rootstocks growth caused with ground and regenerated wastewater irrigation
An avocado rootstocks were grown in a pot experiment with lysimeters to evaluate the effect of three irrigation options: groundwater (GW), regenerated wastewater (RWW), and a 1:1 mixture of both (GW/RWW-1:1). Plant water and salt stress assessment was carried out using leaf non-destructive and destructive methods during the fifth and sixth months of the experiment. The avocado leaf blade area decreased by the end of observations in the GW/RWW-1:1 and RWW treatments by 1.2 and 1.5 times compared to
Remote Sensing and Soil Moisture Sensors for Irrigation Management in Avocado Orchards: A Practical Approach for Water Stress Assessment in Remote Agricultural Areas
Water scarcity significantly challenges agricultural systems worldwide, especially in tropical areas such as the Dominican Republic. This study explores integrating satellite-based remote sensing technologies and field-based soil moisture sensors to assess water stress and optimize irrigation management in avocado orchards in Puerto Escondido, Dominican Republic. Using multispectral imagery from the Landsat 8 and 9 satellites, key vegetation indices (NDVI and SAVI) and NDWI, a water-related index
Infrared thermography as a tool for measuring water stress index in avocado cultivars ( Persea Americana M.)
Avocado cultivation is susceptible to water stress during the flowering stage and early fruit growth. This stress can cause premature fruit drop and exacerbate alternate bearing. Objective. To determine the crop water stress index (CWSI) in three avocado cultivars (Hass, Fuerte, and Zutano) under different irrigation conditions using infrared thermography. Materials and methods. The study was conducted in the fall of 2023 at the Canaán Agricultural Experiment Station, Ayacucho, Peru. One hundred