Application of certain hormones to prevent flower abscission in two potato (Solanum tuberosum) varieties
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Investigations were undertaken to obtain flowers and fruit set in two potato varieties, namely, Canoga and Russet Burbank. Almost always in Russet Burbank, and quite often in Canoga, the flower buds drop. Seven hormones were used and a 25 p.p.m. aqueous solution of each was prepared. Potato plants were sprayed with hormones at different stages of plant development. These stages were; seed tuber stage, four-inch stage, fully grown plant stage, and flower bud stage.
The results indicate that in the Canoga variety, flowers and fruit were obtained when the plants were sprayed with any of the above-mentioned hormones at any stage, but the fully-grown-plant stage proved to be better for hormone treatment since it affects flower development. At this stage the best flowering and fruit set were obtained by the application of 2,4-D followed by IBA, 2,4,5-TCPA, and 2,4,5-TCPP.
In the case of Russet Burbank more selectivity as to stage of plant growth and type of hormone was required to obtain good flowering and fruit set. The four-inch stage proved to be better and at this stage the application of NAA and 2,4,5-TCPP gave the best results with IBA as third choice.
These results were obtained from a single experiment. In order to make definite recommendations much more research will have to be conducted.
KeywordsAMERICAN Potato Journal Potato Variety Potato Jour Indolebutyric Acid TCPP
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- 1.Clarke, A. E., Edmundson, W. C. and Lombard, P. M. 1941. Seed setting in potatoes as affected by spraying with a-naphthaleneacetamide and by light. Amer. Potato Jour. 18: 273–279.Google Scholar
- 3.Oniscenko, A. I. 1950. (Improvement of fruit setting in potato crosses). Selekcija i Semenovodstvo (Breeding and seedling growing) 7: 48–51.Google Scholar
- 4.Snedecor, G. W. 1946. Statistical methods. Iowa State College Press. Ames, Iowa: 4th Ed.Google Scholar
- 5.Swaminathan, M. S. 1951. Notes on induced polyploids in the tuber-bearingSolanum species and their crossability withSolanum Tuberosum. Amer. Potato Jour. 28: 472–489.Google Scholar
- 6.Tukey, J. W. 1951. Quick and dirty methods in statistics, Part II, Simple analysis for standard designs. Proc. 5th Annual Conv. Amer. Soc. Quality Control: 189–197.Google Scholar
- 7.Tukey, J. W. 1953. The problems of multiple comparisons. (Mimeographed). Princeton University. PP. 396.Google Scholar
- 8.Wiersema, H. T. 1950. Growth substances and plant breeding with reference to an experiment with potatoes. Notulen Studiekring voor plantenveredling. Wageningen: 338–341. (Abstract).Google Scholar