Year: 1987
Type: article
Abstract: In a greenhouse study with strawberry ( Fragaria × ananassa Duchesne), foliar sprays of paclobutrazol (PP333) at 10, 46, 215, or 1000 ppm and chlormequat chloride (CCC) at 215 or 1000 ppm decreased runnering, but PP333 was most effective. PP333 inhibited runnering more for ‘Totem’ than ‘Shuksan’, with the reverse true for CCC. Biweekly fertilization with 20N-4.3P-8.3K at 180 mg/pot increased leaf area and runnering relative to 45 mg/pot. PP333 at equal rates produced larger decreases in leaf area than CCC. Both high fertilizer and PP333 in a rate-dependent manner delayed leaf senescence and berry ripening. CCC increased yield in ‘Shuksan’ only, and while berry fresh weight was increased by PP333, no increase in yield occurred, as it was offset with a decreased number of berries that ripened over the period of our study. PP333 decreased pollen germination. Soil residues of PP333 were evident 11 weeks after application. Chemical names used: β-[(4-chlorophenyl)methyl]-α-(1,1-dimethylethyl)-1 H - - 1,2,4-triazole-1-ethanol (paclobutrazol); 2-chloro- N, N, N -trimethylethanaminium chloride (chlormequat chloride).
Authors: D.A.J. McArthur, G.W. Eaton
Institution: University of British Columbia
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $3,500
OpenAlex ID: W4289844337