Abstract
The influence of paclobutrazol and A-Rest treatment on plant height, flowering, leaf senescence and leaf carbohydrates in ‘Nellie White’ Easter lily were examined. Soil incorporation of granular paclobutrazol was most effective in reducing plant height, followed by soil drench and a top dressing of granular paclobutrazol. The relationship between paclobutrazol concentration and height reduction was linear. However, paclobutrazol spray had no effect on height. A-Rest soil drench was more effective than foliar spray. Paclobutrazol and A-Rest treatments hastened lower leaf senescence. During flower bud development, leaf total soluble sugars were reduced by paclobutrazol incorporation and drench, and A-Rest drench.
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