![]() ![]() The USDA Competitive Grants Program does not include plant growth regulators directly. However, many predictions and expectations have not been fulfilled, the basic grain crops are still without a major chemical yield enhancer and~ as Wittwer (2) clearly pointed out to this organization two years ago, a number of commissions that have evaluated basic research opportunities to increase agricultural productivity have not given the plant hormoneregulator area a first order ranking. ![]() On the one hand is strong industrial interest~ an array of successful products~ the formation and development of the Plant Growth Regulator Working Group, and predictions of growth of the market exceeding those for herbicides and insecticides (September 1977 issue Farm Chemicals projection for 12% increase in sales of plant growth regulators annually between 19). During those thirty years great changes have occurred in the commercial plant growth regulator field~ but the current ~uestions and opportunities may be more critical to the future of this aspect of agricultural chemistry than any single event that has gone before. Morgan 1 Thirty years have passed since the first international conference on plant growth substances and a pioneering review of "practical plant hormones" by P. AGRICULTURAL USES OF PLANT GROWTH SUBSTANCES: AN ANALYSIS OF PRESENT STATUS AND FUTURE POTENTIAL Page W. ![]()
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