Post Archives



Improving supplemental light use efficiency of greenhouse crops

Supplemental lighting is required to produce quality crops inside greenhouses in the northern US.  The energy costs for supplemental lighting can be quite significant.  For example, to add 5 moles of supplemental light per day using 1000 W HPS lamps during mid Nov to mid Mar for an acre of greenhouse can cost $25000.  This makes lighting one of the most expensive input for production.  In addition, only a fraction (1-3%) of supplemental light is actually used by plants in photosynthesis.  Therefore it is important to improve supplemental light use efficiency of plants for ‘sustainable’ crop production.  Our research is focused on identifying environmental factors that transiently reduce supplemental light use efficiency in greenhouses and mitigating these transient stressors during production.  We use a combination of remote sensing techniques to identify supplemental light use efficiency of plants and transient environmental stressors experienced by plants in greenhouses.  Our goal is to develop affordable technologies that can be easily transferred to the greenhouse[Read More…]




Dr. Nemali speaks at UKY flower production seminar

temperature-control-of-growth-flowering-in-ornamentals


Greenhouse Management Guidesheets

Disease Management Spring Greenhouse Bedding Plants: Insect Mite and Disease Management – Purdue University Disease and Arthropd Management in Greenhouse Floriculture – Penn State University  Disease Factsheets of Greenhouse and Foliage – Cornell University Diagnosing Greenhouse Crop Problems – University of Alaska Root Diseases of Greenhouse Crops – University of Massachusetts Characterization and Control of Pythium Pathogens in Recycled Irrigation Water – FIRST Root Rots Diseases of Flowering Potted Plants - Kansas State University Damping-Off of Seeds, Seedlings, and Cuttings – Penn State University Black Rot of Greenhouse Floral Crops – Ohio State University Powdery Mildew – Penn State University Pythium Root Rot – Penn State University Botrytis Blight of Greenhouse Crops – University of Massachusetts Botrytis or Gray Mold – Penn State University Virus Indicator Plants – University of Massachusetts Virus Diseases of Greenhouse Floral Crops – Ohio State University INSV – North Carolina State University Ethylene Ethylene: Sources, Symptoms, and Prevention for Greenhouse[Read More…]


Guidesheets for Consumer Floriculture

Consumer Horticulture Extension Guidesheet Search Engines OSU PlantFacts E-Answers Caring for Potted Plants Care of Flowering Potted Plants – University of Missouri Care of Holiday and Gift Plants – University of Georgia Keeping Cut Flowers and Potted Plants – University of Minnesota Care of Fresh Flowers and Holiday Plants – Alabama Cooperative Extension Spring Bulbs for Indoor Flowering – University of Missouri Lighting Indoor Plants – University of Missouri Caring for Houseplants – University of Missouri Cut Flowers Prolong the Life of Cut Flowers – Virginia Cooperative Extension Prolong the Life of Valentine Roses – Virginia Cooperative Extension Add Hours To Your Flowers – pdf file – Purdue University Keeping Cut Flowers and Potted Plants – University of Minnesota Care of Fresh Flowers and Holiday Plants – Alabama Cooperative Extension SAF's About Flowers.com Flower Arranging Flowers and Leaves for Flower Arrangements – Virginia Cooperative Extension Flowering Potted Plants – Arranged[Read More…]


Cut Flower Production and Handling Guidesheets

Crop Production: General Production Topics Specialty Cut Flowers: A Commercial Grower's Guide – pdf file – Kansas State University Sustainable Cut Flower Production – ATTRA Insect Problems in Commercial Production of Outdoor Cut Flowers – University of Massachusetts Weed Management for Outdoor Cut Flowers – University of Massachusetts Fertilization in Cut Flower Production – pdf file – Kansas State University Enterprise Guide for Southern Maryland: Producing Cut Flowers – General Field Crop Management – University of Maryland Maintaining a Succession of Cut Flowers – University of Maryland Crop Production : Annual Field-Grown Cut Flower Crops Field Grown Annuals for Cut Flowers – University of Massachusetts Celosia – University of Maryland Florist Statice – University of Maryland Sunflowers – University of Maryland Sunflowers – pdf file – Kansas State University Sunflowers: 1995 Production Evaluation – pdf file – Kansas State University Zinnias – pdf file – Kansas State University Managing Aster[Read More…]


Potted Plant Production Guidesheets

African Violet African Violet Production Guide – Univeristy of Florida African Violet Commercial Greenhouse Production – Auburn University African Violet Diseases and their Management – Penn State University Aster Guide to Successful Outdoor Garden Aster Production – North Carolina State University Garden Asters – University of Massachusetts Aster Diseases and their Management – Penn State University Plant Disease Facts – Aster Diseases – Penn State University Bedding Plants – General Growing and Marketing Bedding Plants – Alabama Cooperative Extension Post-Production Quality of Bedding Plants – Auburn University Greenhouse Costs of Production Budgets: Bedding Plants – Rutgers Bedding Plant Height Control Strategies – North Carolina State University Chemical Growth Regulation of Bedding Plants – University of Massachusetts Fertilizing Bedding Plants – University of Massachusetts Identifying Nutrient Deficiencies of Bedding Plants – North Carolina State University Pest Management for Vegetable Bedding Plants – University of Massachusetts Damping-Off of Bedding Plants and Vegetables – University of Massachusetts Begonia Begonia Production Guide – pot types – University of Florida INSV Symptoms[Read More…]


Foliage Plant Production Guidesheets

Aglaonema Production Guide – Univeristy of Florida Anthurium Production Guide – Univeristy of Florida Aphelandra (Zebra Plant) Production Guide – Univeristy of Florida Aralia Production Guide – Univeristy of Florida Areca Palm Production Guide – Univeristy of Florida Calathea Production Guide – Univeristy of Florida Chamaedorea Palm Production Guide – Univeristy of Florida China Doll Production Guide – Univeristy of Florida Cordyline (Ti Plant) Production Guide – Univeristy of Florida Croton Production Guide – Univeristy of Florida Dieffenbachia Production Guide – Univeristy of Florida Dracaena Production Guide – Univeristy of Florida English Ivy Production Guide – Univeristy of Florida Ferns Greenhouse Production of Boston Ferns – Alabama Cooperative Extension Boston Fern Production Guide – Univeristy of Florida Birdsnest Fern Production Guide – Univeristy of Florida Staghorn Ferns – University of Florida Ficus Production Guide – Univeristy of Florida Fittonia Production Guide – Univeristy of Florida Grape Ivy Production Guide –[Read More…]


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