Effects of rootstock and nitrogen fertiliser on postharvest anthracnose development in Hass avocado

Willingham, S. L.; Pegg, K. G.; Anderson, Jay Martin; Cooke, A. W.; Dean, J. R.; Giblin, Fiona; Coates, L. M.

doi:10.1071/ap06062

Cited by 23 publications

(18 citation statements)

References 14 publications

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“…In this sense, N concentration can affect the quality of fruits, since the assimilation of Ca 2+ decreases in the presence of excessive amounts of this element. This reduces the postharvest storage of fruits, increases ripening heterogeneity (Hernández et al, 2016;Hernández et al, 2017), and plays an important role in the susceptibility to pathologies (Willingham et al, 2006). In the same way, Ca 2+ concentration and its relationships with other nutrients such as K ++ and N have a significant effect on postharvest softening, and therefore, on fruit firmness, which is a primary factor for consumer preference (Witney et al, 1990).…”

Section: Chemical Variables Associated With Hass Avocado Quality and mentioning

confidence: 99%

Fruit quality in Hass avocado and its relationships with different growing areas under tropical zones

et al. 2019

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Avocado is currently an important crop in Colombia, given its growth in planted area and the increase in exports. The destination market of Colombian avocado is mainly international, and its quality is outstanding. However, the physical and chemical characteristics associated with the quality of the avocados produced are not currently well known in Colombia. The aim of this study was to evaluate the physical, chemical and nutritional parameters associated with the quality of Hass avocado in eight localities of the department of Antioquia based on descriptive statistics. Additionally, the quality was related to the localities through a multivariate analysis. As a result, quality at preharvest parameters of Hass avocados cultivated in Antioquia is similar or superior to that reported internationally based on physical and chemical variables. In addition, a relationship was established between the quality of fruits and the plots where these were cultivated, which allowed discriminating fruits by their region of origin. This work shows an approach to the determination of quality parameters in Hass avocado in Colombia and how they can be related to the characteristics of its productive system, which can lead to defining a product with added value.

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Section: Chemical Variables Associated With Hass Avocado Quality and mentioning

confidence: 99%

Fruit quality in Hass avocado and its relationships with different growing areas under tropical zones

et al. 2019

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“…Diseases may be of biotic origin such as fruit rot usually associated with microbial pathogens, or abiotic origin such as those caused by physiological disorders ( Burdon et al., 2013 ; Hernández et al., 2016 ; Ramírez-Gil et al., 2020 ; Sharma et al., 2017 ; White et al., 2009 ). Many of these problems are associated with excess of nitrogen in the last periods of fruit filling ( Willingham et al., 2006 ), and imbalances that undermine Ca and Mg uptake ( Everett et al., 2007 ). Additionally, good management of nutrients such as boron and zinc is recommended as it improves fruit quality ( Crowley et al., 1996 ).…”

Section: Introductionmentioning

confidence: 99%

Postharvest diseases and disorders in avocado cv. Hass and their relationship to preharvest management practices

Ramírez‐Gil

Henao-Rojas

Osorio

2021

Heliyon

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“…Compared to values found in the literature, the pulp of these fruit contained low calcium (Ca) concentrations [57][58][59][60][61][62][63][64][65][66][67] and very high N concentrations [67][68][69], with a consequentially high N/Ca ratio of 40. Studies on avocado fruit have revealed that both of these nutrients influence anthracnose susceptibility [58,59,67,[70][71][72][73][74][75][76]. For example, Marques et al [67] reported that 'Hass' fruit with a pulp N/Ca ratio of 45 developed body rots affecting 20% of the flesh volume, as opposed to just 5% in fruit that had a N/Ca ratio of 33.…”

Section: Discussionmentioning

confidence: 99%

Impact Injury at Harvest Promotes Body Rots in ‘Hass’ Avocado Fruit upon Ripening

et al. 2020

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Global demand for avocados has risen rapidly in recent years, yet supplying fruit that consistently meets consumer expectations for quality remains a challenge in the industry. Body rots in avocado fruit are a leading cause of consumer dissatisfaction. Anecdotal evidence suggests that body rot development may be promoted by mechanical injury at harvest and packing, despite the fruit being hard, green and mature (i.e., unripe) at these stages. Here, ‘Hass’ avocado fruit, harvested across multiple fruiting seasons from commercial orchards, were subjected to controlled impact from drop heights of 15–60 cm at the time of harvest or packing. With increasing drop height, body rot development at eating ripe stage generally occurred more frequently and produced larger lesions at the impact site and, in some experiments, elsewhere on the fruit. These findings refute a general belief that green mature avocado fruit can tolerate a degree of rough physical handling without ripe fruit quality being compromised. Ideally, best avocado harvesting and packing practice should recognize that unripe fruit must not experience drop heights of 30 cm or higher.

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Effects of rootstock and nitrogen fertiliser on postharvest anthracnose development in Hass avocado

Cited by 23 publications

References 14 publications

Fruit quality in Hass avocado and its relationships with different growing areas under tropical zones

Fruit quality in Hass avocado and its relationships with different growing areas under tropical zones

Postharvest diseases and disorders in avocado cv. Hass and their relationship to preharvest management practices

Impact Injury at Harvest Promotes Body Rots in ‘Hass’ Avocado Fruit upon Ripening

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