Journal of Food, Agriculture and Environment

On-tree follow-up of apricot fruit development using a hand-held NIR instrument

Author(s):

Cédric Camps ^*, Danilo Christen

Recieved Date: 2009-01-10, Accepted Date: 2009-04-18

Abstract:

The follow-up of apricot fruit development on tree until harvest is of prime importance as it influences the fruit quality at harvest. Until now, fruit follow-up in the orchard depends mainly on the expert eye of the producer and no objective measurement exists to help the professional to monitor their orchard. In practice, a non-destructive helpful tool would be suitable for use in the field during fruit growing. The present study aimed at developing a hand-held near infrared spectroscopic technique to non-destructively follow the fruit development of two apricot varieties: Bergarouge and Harostar. To start with, a classification approach has been tested to characterize the fruit as a function of a given picking date during growing. Factorial discriminant analysis (FDA) applied to destructive measurements allowed the correct classification of 89% (Harostar) to 92% (Bergarouge) of fruits. Analyses performed on spectral data allowed the correct classification of 96% of fruits whatever the variety. Secondly, partial least squares (PLS) regressions were performed to determine the physico-chemical values during the fruit development. The soluble solids content was determined with a precision of 0.85°Brix and 1.47°Brix to Bergarouge and Harostar varieties, respectively. Firmness was determined with a precision of 2.7% and 6.2% to Bergarouge and Harostar varieties, respectively.

Keywords:

Pre-harvest, soluble solids content, acidity, firmness, orchard, apricot, non-destructive, near infrared spectroscopy, FDA, PLS, classification, quantitative prediction

---

Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Agriculture
Pages: 394-400

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :