Abstract
THE work of Gustafson1 in 1936 and subsequent experiments by others led to the general conclusion that auxin is the controlling factor in fruit set. Results collected over the past 6 or 7 years show that gibberellins are also concerned with fruit set and development2,3. It is now accepted that a third major group of plant hormones, the kinins, occur in many fruits4–6, In 1962 we were the first to demonstrate that an applied kinin caused a large increase in size of fruit. Treated berries of ‘Black Corinth’ grapes became three times as large as the untreated7. This communication describes experiments performed in 1963 and 1964 to determine the effect of kinin on fruit set.
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References
Gustafson, F. G., Proc. U.S. Nat. Acad. Sci., 22, 628 (1936).
Crane, J. C., Rebeiz, C. A., and Campbell, R. C., Proc. Amer. Soc. Hort. Sci., 78, 111 (1961).
Weaver, R. J., and McCune, S. B., Bot. Gaz., 121, 155 (1960).
van Overbeek, J., paper Tenth Intern. Bot. Congress, Edinburgh. Aug. 5 (1964).
van Overbeek, J., Proc. Campbell Soup Co., Plant Sci. Symp., 37 (1962).
Loeffler, J. E., and van Overbeek, J., Regul. Nat. Croiss., Veg., 77 (CNRS, Paris, 1964).
Weaver, R. J., and van Overbeek, J., Calif. Agric., 17, 12 (1963).
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WEAVER, R., VAN OVERBEEK, J. & POOL, R. Induction of Fruit Set in Vitis vinifera L. by a Kinin. Nature 206, 952–953 (1965). https://doi.org/10.1038/206952b0
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DOI: https://doi.org/10.1038/206952b0
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