Sachs, M., Division of Vegetable Crops, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Iszak, E., Division of Vegetable Crops, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel

In summer (August) planting of chilled cv. Tioga strawberry runners, under Israeli growing conditions, there is excessive runner production until mid-December. These runners are removed manually several times during the autumn season. Frequent runner removal had no salutary effect on subsequent flowering and yield. PP-413 inhibited runner production and development highly significantly, but at high concentrations (1 000-2 000 ppm) it had an adverse effect on yield. Ancymidol (25 ppm) had almost no effect on runner development. © 1975.