Floriculture Area of
      Expertise (AoE)

 
 

Programs and Meetings

 

Other Information

 

 

 

 

 

 

 

Floriculture Crop Production Information

 

 

Click on one of the topics above to view specific articles in pdf format published in floriculture trade magazines.  Articles posted with permission from Greenhouse Product News, Greenhouse Grower, Greenhouse Management, and GrowerTalks magazines.  All articles are in pdf format.


Bulletins, books, and electronic resources

Crop Scheduling of Bedding Plants
This PowerPoint presentation was delivered by Erik Runkle (Michigan St. Univ.) live to floriculture growers in Michigan in February 2015. It was recorded and edited by Heidi Wollaeger, MSU Extension.  Research-based information is presented on how temperature, light, and other environmental and cultural factors influence flowering time of bedding plants.  In addition, scheduling tools are presented to assist growers who are scheduling their crops for specific market dates.
FlowersOnTime (version 1.3)
This Microsoft Excel spreadsheet allows users to predict the effect of modifying greenhouse temperature on crop production time.  First, select one of the 70+ floriculture crops (many of which are bedding plants) in the drop-down list, then specify your typical finish crop time at a particular temperature.  The model then predicts the effect of increasing or decreasing temperature at 2 °F intervals, assuming all other conditions are the same.  Developed by Paul Fisher (Univ. of Florida), Erik Runkle and Matt Blanchard (Michigan St. Univ.) and John Erwin (Univ. of Minnesota).

Managing Photoperiod in the Greenhouse
This six-page bulletin provides information on how control the day length in commercial greenhouse production of floriculture and nursery crops.  Developed by Chris Currey and Roberto "RoLo" Lopez (Purdue Univ.) and Erik Runkle (Michigan St. Univ.).

Wave® Smart Scheduling Tool
This Excel‐based tool, developed in collaboration with PanAmerican Seed, enables growers to predict time to first open flower for 15 Wave petunia varieties at specific average daily temperatures (ADTs) and daily light integrals (DLIs). This tool allows growers to schedule specific Wave varieties on precise dates and help select varieties that flower uniformly under their environmental conditions.  Developed by Erik Runkle, Heather Greyerbiehl, Cathy Whitman, Tasneem Vaid, and Mike Olrich (Michigan St. Univ.) and Sonali Padhye (PanAmerican Seed).
Budgets, Cost of Production and Decison-Making Tools
Several spreadsheets (in Microsoft Excel) have been developed by MSU Extension educators to help growers estimate greenhouse production costs and explore opportunities for savings.  Examples include the Greenhouse Capital Investment Calculator and the Greenhouse Cost of Production spreadsheet.  For more information and additional tools, visit the MSU Extension Farm Management website.
Growing Plants Indoors
This 20-page, full color bulletin presents information on how to care for common indoor plants.  Topics presented include light, water, fertilizer, insects, mites, and diseases.  Developed by by Erik Runkle, Daedre Craig, Jeanne Himmelein, Tiffany Enzenbacher, and Mary Hausbeck, Michigan St. Univ.
Lighting Up Profits
This 100-page book contains 15 chapter written by academic and industry experts on greenhouse lighting. Topics include the underlying biology of lighting, guidelines for photosynthetic and photoperiodic lighting, carbon dioxide enrichment, and lighting for specific kinds of crops such as plugs and liners, bedding plants, and greenhouse vegetable crops. The book's companion CD-ROM includes PowerPoint presentations and Acrobat PDF files for each chapter, plus an appendix containing light unit conversion tables.  Edited by Paul Fisher (Univ. of Florida) and Erik Runkle (Michigan St. Univ.).
Daily Light Integral (DLI) Maps
These maps provide the average outdoor daily light integral throughout the continental United States and were developed by Jim Faust at Clemson Univ. To estimate the average DLI in your greenhouse, determine the percentage of light transmission that reaches your crops. For example, if you measure 6,300 footcandles outside the greenhouse and an average value of 4,100 footcandles inside, your light transmission value is about 65% (0.65).  Multiply the DLI value on the maps by the light transmission value to get the estimated DLI inside your greenhouse.
Cold Storage of Plug Seedlings
This 20-page pdf document (3.4 mb) contains research-based information on storing seeding plugs. Written by Royal Heins, William Carlson, Nathan Lange, and Tom Wallace, Michigan St. Univ. Copyright Greenhouse Grower magazine and Michigan St. Univ., 1994.

 

 

 

 
 

 
 

  Copyright © 2015, Department of Horticulture, Michigan State University.

  This page was last edited Aug 26, 2015.
  Please send your comments to Dr. Erik Runkle runkleer@msu.edu

MSU is an affirmative action, equal opportunity employer. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status, or veteran status. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Thomas G. Coon, Director, MSU Extension, East Lansing, MI 48824. This information is for educational purposes only. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.