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Stimulating productivity of hydroponic lettuce in controlled environments with triacontanol
1Department of Horticulture, Purdue University, West Lafayette, IN 47907, USA.
Hortscience : a Publication of the American Society for Horticultural Science
|December 1, 1987
Abstract:
Triacontanol (1-triacontanol) applied as a foliar spray at 10(-7) M to 4-day-old, hydroponically grown leaf lettuce (Lactuca sativa L.) seedlings in a controlled environment increased leaf fresh and dry weight 13% to 20% and root fresh and dry weight 13% to 24% 6 days after application, relative to plants sprayed with water. When applied at 8 as well as 4 days after seeding, triacontanol increased plant fresh and dry weight, leaf area, and mean relative growth rate 12% to 37%. There was no benefit of repeating application of triacontanol in terms of leaf dry weight gain.