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4931. Rhizopus tritici. Respiration and carbohydrate changes produced in sweet potatoes by Rhizopus tritici [with list of literature cited]; by J. L. Weimer and L. L. Harter.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4932. Rhizopus tritici. Studies in physiology of parasitism with special reference to secretion of pectinase by Rhizopus tritici [with list of literature cited]; by L. L. Harter and J. L. Weimer.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4933. Rhizopus. Comparison of pectinase produced by different species of Rhizopus; by L. L. Harter and J. L. Weimer.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4934. Rice. Two Sclerotium diseases of rice; by W. H. Tisdale.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4935. Roses for the home; [by F. L. Mulford].

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [Sept. 16, 1916, revised Jan. 1921.] [1921.]

4936. School garden; [by] L. C. Corbett.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921 [reprint]

4937. School garden; by L. C. Corbett.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: Apr. 15, 1905 [revised Sept. 1909] reprint Jan. 1921

4938. Seed-coat injury and viability of seeds of wheat and barley as factors in susceptibility to molds and fungicides [with list of literature cited]; by Annie May Hurd.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4939. Soil temperature. Effect of soil temperature upon development of nodules on roots of certain legumes; by Fred Reuel Jones and W. B. Tisdale.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1921

4940. Soy-bean. Soy beans.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1921.]

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