but proved in certain cases to have

but proved in certain cases to have a phytotoxic effect on
achene and oil production. Double application of PBZ resulted in lower achene and
oil yield than the non-treated control, whereas double application of MPC resulted
in lower above ground dry weight at maturity, achene yield and 100-achenes
weight. Double application of CCC resulted in reduced 100-achenes weight.
Overall, PBZ and MPC under the single dose scheme applied can reduce plant
height in sunflower without adverse effects on achene and oil yields, thus
providing a basis for reducing the risk of plant lodging.