Vol. 26 No: 2

Title:
The Relation Between the Rate of Respiration of an Apple Fruit and Its Content of Protein I. The Value of This Relation Immediately After Picking

Author:
A.C. HULME

pp: 118-124

Abstract:
It has already been shown that during the growth of an apple fruit from the end of the period of active cell division until the onset of the respiration-climacteric, the rate of respiration per unit protein is approximately constant (Hulme, 1939). Further data which support this finding have since been obtained and are included in the present paper. Since, then, the rate of respiration per unit protein (the R/P ratio) appears to be constant for the major portion of the development of the fruit on the tree, it is of interest to examine this ratio in relation to season and cultural conditions within a variety, and to see whether it varies greatly from variety to variety. It is known, for example, that varieties vary considerably in their rates of respiration, dessert varieties tending to have a considerably greater rate than culinary varieties. Further, for a particular variety, those samples which have a high rate of respiration tend to be poor keepers.

From data accumulated at Ditton

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