Promotion of Cucumber Fruit Set and Development by Chlorflurenol1

Autor: Daniel J. Cantliffe, R. W. Robinson, Stanton Shannon
Rok vydání: 1972
Předmět:
Zdroj: HortScience. 7:416-418
ISSN: 2327-9834
0018-5345
DOI: 10.21273/hortsci.7.4.416b
Popis: 2-Chloro-9-hydroxyfluorene-9-carboxylic acid (chlorflurenol)3 at 50 or 100 ppm increased fruit production of a gynoecious cucumber (Cucumis sativus L. cv. MSU 713-5) under field conditions of both normal and reduced pollination. A monoecious cultivar, ‘Wisconsin SMR 18’, treated with (2-chloroethyl) phosphonic acid (ethephon) and then chlorflurenol produced over twice as many fruit as the control when pollen was plentiful, and more than 4 ⨯ as many when pollen supply was limited. Ethephon sprays alone increased pistillate flower formation on the monoecious cultivar but did not increase fruit set. Chlorflurenol treatments increased the proportion of fruit in the smaller, more valuable size grades and appear advantageous for mechanically harvested pickling cucumbers.
Databáze: OpenAIRE