ISHS Acta Horticulturae 636: XXVI International Horticultural Congress: Key Processes in the Growth and Cropping of Deciduous Fruit and Nut Trees
FUTURE ROLE OF PLANT BIOREGULATORS IN FRUIT PRODUCTION (KEYNOTE) |
| Author: | W. Rademacher |
| Keywords: | plant growth regulators, apple, pear, pome fruits, stone fruits, economics |
| Abstract:
Plant bioregulators (PBRs) play important roles in modern agriculture and horticulture. However, they account for only 3 to 4% of the total sales of crop protection agents. This limited market potential, the rising costs of development and registration, and the demand for high profitability have created major constraints on the introduction of new PBRs. In spite of this, at least four new PBR products have been introduced for use in fruit production during the last six years. In most cases, reduced requirements for registration have lowered the financial risks relative to expected profits. It can be expected that PBRs will remain to be an integral part of fruit production and that, at least mid-term, there will be no relevant impact from genetic engineering. At present, it appears unlikely that major new PBRs will be introduced for fruit production within the next decade. However, the high standard reached with existing products, together with new developments in other technologies, should offer sufficient solutions to most problems. | |
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