Login | Request Account (DAF staff only)

Tree yield and fruit mineral concentrations influence 'Hass' avocado fruit quality

View Altmetrics

Hofman, P. J., Vuthapanich, S., Whiley, A. W., Klieber, A. and Simons, D.H. (2002) Tree yield and fruit mineral concentrations influence 'Hass' avocado fruit quality. Scientia Horticulturae, 92 (2). pp. 113-123. ISSN 0304-4238

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link: https://doi.org/10.1016/S0304-4238(01)00286-2


To investigate the variation in quality of ‘Hass’ avocado fruit within an orchard, fruit were harvested at commercial maturity from 15 ‘Hass’ trees of similar appearance, growing in three adjacent rows on the same soil type, and receiving similar management. Fruit were harvested at commercial maturity, and either ripened at 22 °C or stored at 2 or 7 °C for 3 or 5 weeks and then ripened. Significant positive correlations (based on the mean for each datum tree) were noted between fruit flesh calcium (Ca) and magnesium (Mg) concentrations and the (Ca+Mg)/potassium ratio, and the number of days for the fruit to reach the eating ripe stage (DTR). Negative correlations were also observed between these minerals and anthracnose and mesocarp discolouration (MD) severity. Negative correlations were observed between fruit potassium (K) and phosphorus (P) concentrations and DTR. Fruit from trees with high fruit yield were generally smaller, with lower anthracnose and MD severity, ripened more slowly, and had higher flesh Ca concentrations. It is likely that cultural practices that maintain moderate to high fruit yield and reduce variation in yield will improve avocado fruit quality and reduce variability in quality. Since the main differences between adjacent trees in this trial were the seedling rootstocks of unknown origin, it is suggested that rootstocks can have a significant impact on avocado yield and fruit quality.

Item Type:Article
Subjects:Plant culture > Fruit and fruit culture
Live Archive:18 Jan 2024 00:06
Last Modified:18 Jan 2024 00:06

Repository Staff Only: item control page