Jaramillo, Karla V.

Profile Picture

Filters

20181
Reset filters

Settings

Citations

Publication Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Publication
    Morfología, productividad y calidad de fruta de cuatro variedades de aguacate (Persea americana Mill.), ‘ávila’, ‘candelaria’, ‘domínguez’ y ‘goya’, en el noroeste de Puerto Rico
    (2018-06-20) Jaramillo, Karla V.; Morales Payán, José P.; College of Agricultural Sciences; Ferwerda, Feiko H; González, Agenol; Department of Crops and Agro-Environmental Sciences; Tirado, Xaymara L
    Avocado is one of the most economically important crops in Puerto Rico. Several avocado varieties are grown commercially in the island, but documented information about morphology, productivity, strengths and weaknesses of local varieties in Puerto Rico is limited and there are few comparative studies of varieties growing in the same conditions. The objective of this study was to generate comparative information of the morphology, productivity and quality of fruit on four varieties: 'Ávila', 'Candelaria', 'Domínguez' and 'Goya' growing in the same orchard in the Agricultural Experimental Station of the University Campus of Mayaguez in Isabela, in the northwest of Puerto Rico. Morphological characteristics of eight trees of each variety were registered according to descriptors for avocado of the International Plant Genetic Resources Institute (IPGRI). On fruits in physiological harvest maturity, fruit shape, equatorial and polar diameters, weight, and color where recorded. At maturity of consumption, we recorded color, weight, and thickness of exocarp and mesocarp. The weight, length, and equatorial and polar diameters of seeds were recorded. Harvesting dates, number and weight of fruits, distribution of fruits by weight categories were determined. Presence and damage by insect pests was recorded. Pest damage depended on variety, and in general, damages by Pseudocysta persea to the foliage was greater 'Ávila' and lower in ' Domínguez'. In 2016, harvest started in September and the variety with the highest production was ‘Candelaria’, followed by ' Domínguez', 'Avila'. And (the lowest yielding) 'Goya'. In 2017, harvesting started in July and continued in August, but hurricanes Irma and Maria (September 2017) precluded further harvesting in the season, as fruit on the trees in September was destroyed, with losses of 75% in 'Goya', 67% in 'Candelaria', 18% in 'Ávila', and 13% in 'Dominguez'. In general, marketable fruits between 300 and 699 g were the most common. The largest fruits were harvested in 'Candelaria' (1070 g) and 'Ávila' (990 g). 'Ávila' fruits were oval-shaped with flat apex, smooth surface and dark green color. 'Candelaria' fruits had elongated spheroid shape, with an inflated base, rounded apex, and intermediately smooth surface with dark green color. 'Domínguez' fruits were closely ovals with inflated base, rounded apex, and smooth surface with green color. 'Goya' fruits were pyriform, with a sunken base, a rounded apex, and smooth opaque green surface. The pulp of varieties 'Ávila', 'Candelaria' and 'Goya' had watery texture, while the pulp of variety 'Domínguez' had a creamy texture. In the sensory panel, 'Candelaria' and 'Avila' were the favorite and the panelists indicated they would be willing to pay up to $3 for a fruit of these varieties. When judging pulp color and general appearance, 'Candelaria' was preferred by the panelists. In contrast, 'Ávila' was the favorite for taste and texture.