Penetrometer measurement of apple and kiwifruit firmness: Operator and instrument differences

Journal of the American Society for Horticultural Science

Volumn 121, Issue 5, 1996, Pages 927-936

  Harker, F R ^a   Maindonald, J H ^a   Jackson, P J ^a  

^a THE NEW ZEALAND INSTITUTE FOR PLANT AND FOOD RESEARCH LIMITED   (New Zealand)

Author keywords

Actinidia deliciosa; Instron; Malus domestica; puncture; twist test

Indexed keywords

ACTINIDIA DELICIOSA; MALUS X DOMESTICA;

EID: 0030456757     PISSN: 00031062     EISSN: None     Source Type: Journal    
DOI: 10.21273/jashs.121.5.927     Document Type: Article

References (21)

1. Abbott, J.A., A.E. Watada, and D.R. Massie. 1976. Effegi, Magness-Taylor, and Instron fruit pressure testing devices for apples, peaches, and nectarines. J. Amer. Soc. Hort. Sci. 101:698-700.
2. Beever, D.J. and G. Hopkirk. 1990. Fruit development and fruit physiology, p. 97-126. In: I.J. Warrington and G.C. Weston (eds.). Kiwifruit: Science and management. N.Z. Soc. Hort. Sci., Auckland.
3. Blanpied, G.D., W.J. Bramlage, D.H. Dewey, R.L. LaBelle, L.M. Massey, Jr., G.E. Mattus, W.C. Stiles, and A.E. Watada. 1978. A standardized method for collecting apple pressure test data. New York's Food and Life Sciences Bul. 74:1-8.
4. Bongers, A.J. 1992. Comparison of three penetrometers used to evaluate apple firmness. Washington State Tree Fruit Postharvest J. 3:7-9.
5. Bourne, M.C. 1982. Food texture and viscosity: Concept and measurement. Academic, San Diego.
6. Chambers, M.C. and T.J. Hastie. 1991. Statistical models in S. Wadsworth and Brooks/Cole, Pacific Grove.
7. Gacula, M.C. and J. Singh. 1984. Statistical methods in food and consumer research. Academic, Orlando, Fla.
8. Kendall, M.G. and A. Stuart. 1979. The advanced theory of statistics, 4th ed. Griffin, London.
9. Magness, J.R. and G.F. Taylor. 1925. An improved type of pressure tester for the determination of fruit maturity. U.S. Dept. Agr. Dept. Circ. no. 350.
10. Maindonald, J.H. 1992. Statistical design, analysis, and presentation issues. N.Z. J. Agri. Res. 35:121-141.
11. Miller, R.G., Jr. 1986. Beyond ANOVA, basics of applied statistics. Wiley, New York.
12. Payne, R.W., P.W. Lane, P.G.N. Digby, S.A. Harding, P.K. Leech, G.W. Morgan, A.D. Todd, R. Thompson, G. Tunnicliffe Wilson, S.J. Welham, and R.P. White. 1993. Genstat 5 Release 3 reference manual. Clarendon Press, Oxford.
13. Pearce, S.C. 1983. The agricultural field experiment: A statistical examination of theory and practice. Wiley, New York.
14. Saltveit, M.E., Jr. 1978. Selecting an experimental design for pressure testing apples. J. Amer. Soc. Hort. Sci. 103:105-109.
15. Smith, S.M. 1985. Measurement of the quality of apples: Recommendations of an EEC working group. Commission European Comm.
16. Statistical Sciences. 1991. S-PLUS reference manual, version 3.0. Statistical Sciences, Seattle.
17. Studman, C.J. and Yuwana. 1992. Twist test for measuring fruit firmness. J. Texture Studies 23:215-227.
18. Voisey, P.W. 1977. Examination of operational aspects of fruit pressure tests. Can. Inst. Food Sci. Technol. 10:284-294
19. Watkins, C. and J. Harman. 1981. Use of penetrometer to measure flesh firmness of fruit. Orchardist N.Z. 54:14-16.
20. Watkins, C.B., I.J. Horner, and I.B. Ferguson. 1992. The effects of collar rot (Phytophthora cactorum) on "Cox's Orange Pippin" fruit quality. J. Hort. Sci. 67:495-500.
21. Worthington, J.T. and J.N. Yeatman. 1968. A statistical evaluation of objective measurement of apple firmness. Proc. Amer. Soc. Hort. Sci. 92:739-747.