Lognormal Distribution of Apples in Relation to Maturity Restriction at Harvest

Acta Hort. (ISHS) 604:605-610, 2003

6 Pages Posted: 18 Sep 2012

See all articles by Gregory Yom Din

Gregory Yom Din

Tel-Hai Academic College; Open University of Israel - Department of Management and Economics

Zinaida Zugman

Independent

Yolanta Saks

affiliation not provided to SSRN

Moshe Kim

University of Haifa

Date Written: September 17, 2003

Abstract

A model linking maturity indicators and the restrictions they impose on the apple yield assigned to a long-term storage (AppleLS) was studied. Using a three-step approach “maturity restrictions – parameterization - empirical distribution functions”, parameters of theoretical distributions for fitting AppleLS were estimated. Packinghouse data for three varieties over five years was used to building separate models for three periods of harvest. Normal and lognormal fits to empirical distribution functions of AppleLS were tested. A good agreement between the empirical distribution functions and their lognormal fits (high p-values for test) was observed in all studied cases. The established lognormal character of the distribution of fruit quantity in relation to maturity restrictions at harvest can be applied to modeling the quality of fruit handled in packinghouses.

Keywords: firmness, starch pattern index, poststorage, quality, packinghouse, distribution function

JEL Classification: C13, Q12

Suggested Citation

Yom Din, Gregory and Zugman, Zinaida and Saks, Yolanta and Kim, Moshe, Lognormal Distribution of Apples in Relation to Maturity Restriction at Harvest (September 17, 2003). Acta Hort. (ISHS) 604:605-610, 2003, Available at SSRN: https://ssrn.com/abstract=2148078 or http://dx.doi.org/10.2139/ssrn.2148078

Gregory Yom Din (Contact Author)

Tel-Hai Academic College ( email )

Upper Galilee
Galil Elyon, 12210
Israel

Open University of Israel - Department of Management and Economics ( email )

1 University Road
Raanana, 43107
Israel

Zinaida Zugman

Independent ( email )

Yolanta Saks

affiliation not provided to SSRN ( email )

Moshe Kim

University of Haifa ( email )

Mount Carmel
Haifa, 31905
Israel

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