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This update from the Californian Protea Association provides valuable insights into post-harvest management of Protea flowers, emphasizing the latest findings from Chrysal. It reports on research regarding common post-harvest issues such as leaf blackening and bract browning, highlighting factors like sugar levels and environmental conditions. Chrysal's range of professional flower food solutions, essential for extending vase life and enhancing flower quality, is also detailed. The report outlines practices in grower and import environments across several countries, including the USA and Europe.
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Californian Protea Association & Chrysal An Update on post harvesting Date: October 2013 Location: Resendiz Bros. Protea Growers, Fallbrook, Ca By: Rolf Timmerman Technical Manager Manager
Content • Chrysal • Company Profile • R&D • Protea • Available Products • Flower Food
Company Profile • Worldwide staff of over 200 people (in Holland, Nordics, UK, Germany, France, USA, Canada, Colombia, Ecuador, China, Japan and Kenya) • Offices in US, UK, Germany, China & France • Production sites in Holland, Colombia, Ecuador, Japan & Sweden • R&D centers in Holland, Japan & Colombia - (Staff of 14) • Technical Consultants in Europe, USA, Latin America, Asia & Africa (Staff of 16) • No.1 in Post Harvest products in Europe, the Americas and Japan
CHRYSAL INTERNATIONALHeadquarters in Naarden, The Netherlands
R & D • Lab Activities: • Applied research • Formulaimprovement • Benchmarktestingcompetitorproducts • Developregionalspecificformulations
FLOWER TEST ROOMS Over 500 tests per year Colombia Holland Climate Conditions Temp Controlled: 20C Relative Humidity: 60% 12 hrs - Light / Dark Over Pressure: no ethylene
Post Harvest Issue(s) Protea • Leaf blackening! • Bract browning • Botrytis • Flower quality
Why is Leaf Browning? • Still a mystery ? A little less now …. SUGAR! • Under fertilizing during Growing? • Immature cut stage? • Lack of (sun) light? • Flower development complicated, requires tremendous amount of energy • Long transportation time from Harvest Consumer
Sugar Loving Cut-Flowers • Lisianthus • Galdiolus • Tuberrose • Tight Cut Sunflowers • Viburnum • Bird of Paradise • Baby breath • Brodiaea • Protea species
Sugar “Types” • Glucose • Fructose • Sucrose • Xylose • Etc…
South Africa@ growers level • Stellenbosch university still developing optimal treatment… • Some growers in South Africa do use Chrysal Professional 3 • some also use Chrysal professional 2 • Others do nothing, so more education still required. • 1 grower is trying Chrysal RVB non-clear and adding glucose
Netherlands & UK@ receivers end • Specialty Importers places product on Professional 3 solution upon arrival (Oudendijk / OZ import) • “General” importers; Bouquet Companies places Product on Chrysal Professional 2 • For auction supply now Professional 3 is compulsory! • Lighting in cooler not common • Stored in Cooler at 2º C or 34 F
USA Practices@ growers Level • Just plain water? • Other ideas or experiences!
Vase life Protea Treatment: Chrysal Clear Professional 3 liquid Total vase life: 20 days Photo taken: day 13 Treatment: water Total vase life: 12 days Photo taken: day 13
Chrysal Professional # 3 Vase Solution • Has a higher food level! • The Carbohydrates in product is 100% GLUCOSE • Prevents Leaf Blackening on Protea • Ensures long lasting, more vibrant flowers • Develops shape, color and scent • Keeps vase water clear, clean and odorless • Leaves no sediment or cloudy residue • Works in all water qualities • Dosing rate: 10 gr/liter (~ 1.3 ounce / Gallon) • Lowers the water pH
Sugar • Whynotjustsugar? • Bacterialovesugar: • the more sugar the more bacteria -> • Stem blockage -> no water uptake -> nosugaruptake! • In Professional 3 next to the sugar: • - Acidifier • Mix of desinfactants • Optimaldosage is key!!!
Approximate volume & weight units of sugar per one (1) gallon (~4 liters) of flower food solution
Chrysal Professional # 2 Processing Solution • Liquid solution for Shipping / Display period • Hydrates flowers to prevent wilting • Keeps bucket water clean for up to 6 days • Limited amount of food • Lowers water pH • Clear, clean & odorless solution • Reduces flower waste • No need to re-cut stems • Saves labor & water • Available in 5ml and 10ml formula
Chrysal Professional 1.5 Qt. T-BAG • Low dose holding solution • Designed for the display period • Easy to use – No guesswork • Accurate dosing vs. Dosatrons • Visual control - Stays in bucket • Dissolves in minutes – No waiting • Reduces your shrink • Reusable for up to 6 days 3 Simple Steps
2 Methods of Dosing Chrysal Clear Liquid or T-Bag • Easy to use • Provides nutrients • Keeps water clean & clear • Makes flowers last longer Add Water
Flower Food Packets • Full dose flower food for consumer use at home • Keeps stems firm, leaves green and helps buds open • Dissolves completely - Perfect for clear vases • Keeps vase water clean and clear • Available in Generic & Specialty formulations • Maximizes vase life and value for your customers • Consistent results are achieved when Chrysal is used on every bouquet you sell • Give away extra packets with each flower purchase
What is Flower Food? • Acidifiers lower pH of tap water • Clarifiers keep pollution in check • Nutrients provide energy for opening and holding in vase
Waxflower • VeryEthylenescensitive! • Bud, flowers and leavesabortion • Recommendation: AVB (STS) • Dosage: 1 cc/liter • Always first drink! • Re-cut stem first • Usevery clean water • Usevery clean buckets
Waxflower • Treatment time: minimum 2 hours, outsidecooler • Minimum 4 hours in cooler. • Idealyovernighttreatment • Whenvery clean practices: re-usepossible • Sometimesstillbud drop (after long transport or transport withvariabletemperatures): more stress = more Ethylene! • Extra Insurance: EthyleneBuster sachets (1-MCP) • Add 2 sachet in a box