Use of hydrogen cyanamide for apple and plum thinning

✍ Scribed by Esmaeil Fallahi; Brenda R. Simons; John K. Fellman; W. Michael Colt

• Book ID: 104634058
• Publisher: Springer Netherlands
• Year: 1992
• Tongue: English
• Weight: 304 KB
• Volume: 11
• Category: Article
• ISSN: 0167-6903
• DOI: 10.1007/bf00130653

✦ Synopsis

Effects of various concentrations of Dormex (a .i . 49% hydrogen cyanamide) on fruit thinning of Rome Beauty' apple (Malus domestica Borkh .), Friar' and 'Simka' plums (Prunus salicina Lindley) were studied . A full bloom application of Dormex at all tested concentrations decreased Rome Beauty' apple fruit set and yield, and increased fruit weight . Dormex at 0 .25% (v/v) resulted in adequate apple thinning, indicated by production of an optimum fruit weight (320 g) . Prebloom and full bloom applications of Dormex at greater than 0 .75% reduced plum fruit set and yield in Friar' . Full bloom application of Dormex at 0 .50% showed a satisfactory fruit set, yield, and fruit weight in `Friar' plum . Prebloom Dormex application had no significant effect on 'Simka' plum fruit set or yield, but full bloom application decreased fruit set and yield .