Effects of chemical treatments on dormant potato tubers
AuthorJ. T. Rosa
Author AffiliationsJ. T. Rosa was Assistant Professor of Truck Crops and Associate Plant Breeder in the Experiment Station.
Hilgardia 3(4):125-142. DOI:10.3733/hilg.v03n04p125. March 1928.
Abstract does not appear. First page follows.
The treatment of dormant tubers with various substances to hasten sprouting has been extensively investigated, but as yet no method of treatment has been adopted by commercial growers. While it is believed that such matters as tuber maturity, storage temperature, and the normal length of dormant period for the variety are important factors, the use of chemical stimulants for seed treatment is also likely to be of practical value in many cases. The word “stimulant” is used to designate substances which are probably not used as nutrients, yet are capable of accelerating the plants’ activities.
In this paper will be presented the results of a number of experiments, designed largely to determine effective methods for the stimulation of sprouting in dormant seed potatoes. Studies concerning the effect of such treatments upon the metabolism of the tuber are under way, but the discussion of this phase of the work will not be entered upon at this time.
Previous Work with Chemical Treatments
McCallum(4) found that sprouting was hastened by exposing potatoes to the fumes of ethyl bromide, carbon tetrachloride, ammonia, and gasoline, at the rate of ½ to 1 cc. in a 5-liter chamber for 24 hours. He also obtained positive results with ethyl bromide and with ethylene chloride. Appleman(1) found that treatment with hydrogen peroxide gave positive results.
 Appleman C. O. Study of the rest period in potato tubers. Maryland Agr. Exp. Sta. Bul. 1914. 183:181-226.
 Denny F. E. Hastening the sprouting of dormant potato tubers. Amer. Jour. Bot. 1926. 13:118-125. DOI: 10.2307/2435352 [CrossRef]
 Denny F. E. Second report on the use of chemicals for hastening the sprouting of dormant potato tubers. Amer. Jour. Bot. 1926. 13:386-396. DOI: 10.2307/2435440 [CrossRef]
 McCallum W. B. Ann. Report Arizona Agr. Exp. Sta. 1909. 11:584-586.
 Rosa J. T. Abbreviation of the dormant period in potato tubers. Proc. Amer. Soc. Hort. Sci. 1923. 20:180-187.
 Schlumberger O. Die Kartoffel im Licht Physiologischer Forschung. Angew. Botanik. 1926. 8:262-274.
Also in this issue:Beef cattle situation: Large increase in state's population is important factor in industry changes
Cereals: Transfer of genes in the development of disease resistant wheat, oats and barley
Olive girdling investigations: Seek to determine the best time and method for obtaining optimum fruit set
Citrus tree freeze damage: Possible effect of the January 1949 cold spell on the 1950 crop and recommended treatment of injured trees
Walnut aphid control: Studies in northern California of effectiveness of addition of aphicide to codling moth spray
Poultry husbandry report, 1948: A brief progress report on research findings by the staff of the Division
Dried prunes: Effect of harvesting time on the yield and quality under study
New blackberry: Boysen variety, shiny type, has flavor resembling a high quality wild berry
Farm records and accounts: Adequate financial records are essential to good management and successful farming
Ornamental plants: New mite control chemical promising but more tests required
Relation of tuber maturity and of storage factors to potato dormancy