Volume 64 Number 3 Article 1 Pages: 125-139
Year 2010 Month 7
Title: Prohexadione-Calcium Inhibits Runner Formation and Enhances Yield of Strawberry
Authors: D.W. Greene and S.G. Schloemann
Prohexadione-calcium (ProCa) was evaluated for inhibition of runner formation and plant performance in a
modified plasticulture system used for growing strawberries (Fragaria × ananassa Duch.) in the Northeast using
summer planted cold-stored plants.
Rates between 62.5 to 189 mg•L-1 in multiple applications were evaluated but
the rates between 125 and 189 mg•L-1 were most effective.
ProCa reduced runner formation but initiation of treatments
within 3 weeks of planting and 3 sprays applied at 3-week intervals appeared to be necessary for complete
The inhibitory effects from an application of ProCa lasted for about 28 days.
petiole growth, runner weight and runner number, but increased root to shoot ratio, the number of branch crowns,
the number of inflorescences, and total marketable yield without affecting mean fruit size.
The number of fruit
harvested early was reduced, peak fruit production was delayed and harvest extended later into the season.
performance of plants treated with ProCa was equal or superior to plants where runners were removed manually
during the course of plant growth and development.
Full text download: APS subscribers
ISHS members & pay-per-view
(PDF 374691 bytes)
APS membership administration
ISHS membership administration