Summary
Stem elongation in a potato crop can be reduced by spraying the growth retardant B 995 on the foliage. This treatment generally did not change the total dry matter production. Only in the last period of growth did B 995-treated plots show a higher total dry weight than the untreated ones. This was caused by a slightly later senescence of the treated plots.
The B 995 treatment caused a marked change in the dry matter distribution: stem weight was decreased and tuber weight increased, but leaf weight was generally not influenced. With plants showing considerable vegetative growth, these effects resulted in an increased tuber yield. High nitrogen plots treated with B 995 combined a long productive periode with a favourable dry matter distribution, producing a very high tuber yield at the end of the growing period.
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Bodlaender, K.B.A., Algra, S. Influence of the growth retardant B 995 on growth and yield of potatoes. Europ. Potato J. 9, 242–258 (1966). https://doi.org/10.1007/BF02364682
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DOI: https://doi.org/10.1007/BF02364682