University of California

Determining changes in stored peas by use of a reference element


C. S. Bisson
H. A. Jones
H. W. Allinger

Authors Affiliations

C. S. Bisson was Professor of Chemistry and Chemist in the Experiment Station; H. A. Jones was Professor of Truck Crops and Olericulturist in the Experiment Station; H. W. Allinger was Analytical Chemist, Division of Chemistry.

Publication Information

Hilgardia 10(6):143-165. DOI:10.3733/hilg.v10n06p143. August 1936.

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The fresh pea crop is of considerable economic importance in California. As most of it is shipped to distant markets, there is danger of the product’s being subject to conditions deleterious to edible quality. To a certain extent the continued success of the industry depends upon placing a high-quality commodity on the table of the consumer. In an effort to help in guiding commercial practices in this direction, studies have been made on the fundamental changes occurring in the peas and pods after harvest.

As a rule the results of analyses presented by most investigators studying changes in stored material have been expressed as percentages of dry matter. When this method of expression is used, it is difficult to secure a true picture of the absolute changes that are taking place because the variables being studied, such as sugars and starches, are compared with another variable—total dry matter. Kertesz(5)5 has recently pointed out some of the errors commonly occurring in the accumulation and presentation of data on stored material.

In these studies the authors have been interested in determining the absolute changes occurring in both pods and peas in storage and the transfer of material from one to the other.

Literature Cited

[1] Bisson C. S., Jones H. A. Changes accompanying fruit development in the garden pea. Plant Physiol. 1932. 7:91-105.

[2] Bisson C. S., Jones H. A. Determining changes in stored material by use of a reference element. Amer. Soc. Hort. Sci. Proc. 1934. 31:122-24.

[3] Boswell V. R. Chemical changes during the growth and ripening of pea seeds. Amer. Soc. Hort. Sci. Proc. 1924. 21:178-87.

[4] Jones H. A., Bisson C. S. Changes in the composition of the garden pea after harvest. Plant Physiol. 1932. 7:273-83.

[5] Kertesz Z. I. Some carbohydrate changes in shelled peas. New York Agr. Exp. Sta. Bul. 1933. 622:3-14.

Bisson C, Jones H, Allinger H. 1936. Determining changes in stored peas by use of a reference element. Hilgardia 10(6):143-165. DOI:10.3733/hilg.v10n06p143
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