Benzyladenine and Gibberellin Applications Improve Fruit Weight and Delay Maturity of Sweet Cherry | Verbesserung des Fruchtgewichtes und Reifeverzögerung bei Süßkirschen durch die Applikation von Benzyladenin und Gibberelline
2015
Canli, Fatih Ali | Pektas, Mustafa | Ercisli, Sezai
Fruit size has special importance for small-fruited early maturing cherry cultivars. In this study the effects of pre-harvest benzyladenine (BA) and BA plus gibberellin (GA) applications on fruit size and quality of ‘Noir de Guben’ sweet cherry (Prunus avium) were evaluated. ‘Noir de Guben’ trees were sprayed to run off with BA (50, 100 and 150 ppm) and BA + GA₄₊₇(12.5, 25, and 50 ppm) at straw-yellow color stage of the fruit. Fruit treated with BA (50, 100 and 150 ppm) and BA + GA₄₊₇(25 and 50 ppm) were significantly heavier and larger than the control. BA and BA + GA₄₊₇applications did not affect fruit firmness and fruit pH. 50 ppm BA-treated fruit had higher SSC (Soluble Solid Content) than control fruit. Excluding 25 ppm BA treatments, all treated fruit had higher acidity than the control fruit. BA and BA + GA₄₊₇applications delayed skin color development of the treated fruit. ‘Noir de Guben’ trees treated with the optimum concentrations of BA (150 ppm) and BA + GA₄₊₇(50 ppm) yielded fruit with 16.84 and 10.6 % greater weight, respectively.
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