Graphical Tracking Leaf Count to Support Easter Lily Crop Timing Decisions

Autor: R.D. Heins, P.R. Fisher
Rok vydání: 1995
Předmět:
Zdroj: HortScience. 30:863B-863
ISSN: 2327-9834
0018-5345
DOI: 10.21273/hortsci.30.4.863b
Popis: Timing of Easter lily (Lilium longiflorum Thunb.) for sales is complex because the date of Easter and the number of leaves formed on plants before flower bud initiation vary from year to year. A process control chart was developed that uses a leaf unfolding rate model of Easter lily to control development rate towards flowering. The technique allows observed and target leaf count to be tracked on a graph and compared visually over time. The optimum leaf unfolding rate and average temperature can be read directly from the chart without the need for mathematical calculation. The approach provides an intuitive method for transferring quantitative models to growers and can be applied to other management problem areas.
Databáze: OpenAIRE