Figure 1.

Fruit set and growth inhibition of pollinated ovaries with inhibitors of GA biosynthesis and its reversal by GA₃ application. A, Effect of time of emasculation and removal of petals, anthers, and style on number of seeds and fruit growth of pollinated ovaries (at day 0). B, Effect of different doses of LAB 198999. C, Effect of different doses of paclobutrazol (PCB). Pollination was carried out at day 0. LAB 198999 was applied directly to the ovary in 10 μL solution, 2 d after anthesis, after emasculation and petal removal. Paclobutrazol was applied to the roots in the nutrient solution, every 2 d, from 7 d before anthesis to 15 d after anthesis. GA₃ (2,000 ng) was applied to the ovary in 10 μL solution at anthesis. Fruits were collected 20 d after treatment. Values are data from eight fruits ±se. One-hundred percent of fruits developed in all treatments, except those marked with figures in parentheses (number of fruits developed over eight treated).