2018 California

Evaluation of leaf carbon isotopes and functional traits in avocado reveals water-use efficient cultivars

Authors: Acosta-Rangel, A.; Ávila-Lovera, E.; De Guzman, M.; Torres, L.; Haro, R.; Arpaia, M.L.; Focht, E.; Santiago, L.

Plant water-use efficiency (WUE) describes the ratio of carbon gain to water loss during photosynthesis. It has been shown that WUE varies among crop genotypes, and crops with high WUE can increase agricultural production in the face of finite water supply. We used measures of leaf carbon isotopic composition to compare WUE among 24 cultivars of Persea americana Mill (avocado) to determine genotypic variability in WUE, identify potentially efficient cultivars, and to better understand how breeding

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2021 Chile

Evaluation of aerial and root plant growth behavior, water and nutrient use efficiency and carbohydrate dynamics for Hass avocado grown in a soilless and protected growing system

Authors: Beyer, C.; Cuneo, I.; Alvaro, J.; Pedreschi, R.

Avocado production is nowadays questioned worldwide and at risk due to climate change and the high water footprint of this crop. Thus, there is need for the development or adoption of new strategies such as alternative production systems. In this study, Hass avocado plants grafted on two rootstocks (Mexicola -seed propagated and Dusa® - vegetative-propagated and referred as clonal) were grown in a greenhouse and substrate (coir growth container, 55 L of volume and 500 × 480 mm, H X W) culture

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Crop Yield Response to Water: Section 4.1 (Fruit Trees)

Authors: Ferreyra, R.; Selles, G.; Fereres, E.

Avocado (Persea americana Mill) is a tree that has been known for centuries in areas of Central and South America, but only recently has become a commercial crop. In 2009, there were over 430 000 ha of commercial plantings with a world average yield of 8.8 tonne/ha, with Mexico (100 000 ha), Chile and the United States as the main producing countries. Other countries with significant exports are South Africa, Spain, and Israel (FAO, 2011). Figure 1 presents the production trends of the main producing

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2017 Greece

Growth, photosynthetic performance and antioxidative response of ‘Hass’ and ‘Fuerte’ avocado (Persea americana Mill.) plants grown under high soil moisture

Authors: Doupis, G.; Kavroulakis, N.; Psarras, G.; Papadakis, I.E.

‘Hass’ and ‘Fuerte’ avocado plants were grown under well-watered or waterlogged conditions. Results indicated significant effects on the majority of the allometric parameters in waterlogged plants, with ‘Fuerte’ displaying a more pronounced growth inhibition. Waterlogged conditions caused a progressive and simultaneous decline in net photosynthetic rate and stomatal conductance, earlier in ‘Fuerte’ than in ‘Hass’. Maximal potential quantum yield of PSII was unaffected by the soil

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1995 South Africa

Bioenergetics, respiration cost and water relations of developing avocado fruit

Authors: Blanke, M.M.; Whiley, A.W.

Avocado fruit of cultivars with different susceptibility to physiological fruit disorders were examined in situ for respiration, stomatal conductance, transpiration and xylem water potential. Therein, attached fruit of cv. Fuerte (susceptible to mesocarp discolouration) were compared with Hass (susceptible to small fruit) over the 3-month period from anthesis until the fruit reached 60 g fresh matter:1. Avocado fruit respired more CO2 in the dark than in the light due to fruit photosynthesis. Respiration

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2013 Multiple

The water relations and irrigation requirements of avocado (persea americana mill.): a review

Authors: Carr, M.K.V.

The results of research on the water relations and irrigation need of avocado are collated and reviewed in an attempt to link fundamental studies on crop physiology to irrigation practices. Background information is given on the centre of origin (Mexico and Central America) and the three distinct ecological areas where avocados are grown commercially: (1) Cool, semi-arid climates with winter-dominant rainfall (e.g. Southern California, Chile, Israel); (2) Humid, subtropical climates with summer-dominant

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