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Gibberellic acid (GA) is a key hormone responsible for stem elongation, and without using PGRs to control growth, plants may become stretched and develop poor canopy structure. Proper use of GA biosynthesis inhibitors helps growers produce compact, high-quality plants.
Ethephon is a versatile plant growth regulator (PGR) used to improve branching, abort flowers and flower buds, delay flowering, enhance fruit ripening and manage plant height in a wide range of floriculture crops. When applied, ethephon breaks down into ethylene, a plant hormone that triggers physiological responses like increased lateral shoot development and flower inhibition.
Benzyladenine (BA) is the active ingredient in plant growth regulators (PGRs) like Configure. It is a synthetic cytokinin used to promote branching and improve canopy structure in many ornamental crops. When used properly, it can serve as a “chemical pinch”—reducing labor costs and the risk of disease spread associated with manual pinching.
Chemical plant growth regulators (PGRs) are typically applied as a foliar spray, sprench or substrate drench—but liner dips, also known as liner soaks, can be an efficient and effective application method for liners just prior to transplant.
Gibberellins — including gibberellic acid (GA) — are natural plant hormones that stimulate cell elongation, seed germination and flowering. In commercial production, GA-based PGRs such as Florgib, ProGibb T&O, Fresco and Fascination are often used to promote stem elongation when crops are stunted and to overcome PGR overdose.
Cuttings can dehydrate throughout the supply chain. This document details how to identify times or locations where cuttings are dehydrating, strategies to improve hydration or rehydrate URCs, and examples of rehydration processes.
The document discusses the factors affecting the stem length of Lisianthus plants, including the amount of phosphorus and ammonia/urea applied pre and post-planting, the number of nodes, and the daylength exposure, and provides strategies to manage these factors for optimal growth.
The document discusses the causes, symptoms, and prevention of iron and manganese toxicity in geraniums, primarily caused by low soil pH, and provides recommendations for maintaining optimal soil pH to prevent this disorder.
The document provides strategies for growers to ensure their crops are at peak quality for retail, including adjusting plant size, focusing on flower power, acting early, maintaining root-zone health, focusing on color development, and managing temperature and fertilizer for toned vegetative growth.
The document discusses the factors affecting substrate moisture and gas exchange in finished growing mixes, including water-holding capacity, porosity, grow time, growing environment, media age, and the use of water-absorbing polymers.
The document discusses the importance of substrate moisture and gas exchange in propagation growing mixes, highlighting the impact of media particle size, wetting agents, and initial moisture levels on plant growth and development.
The document discusses the factors causing poinsettias to stretch, including excessive turgor, shade avoidance, wrong fertilizer, and temperature differences, and provides strategies to prevent this, such as ensuring wet-to-dry cycles, maximizing airflow, adjusting shade curtains, using the right fertilizer, and applying plant growth retardants.
The document discusses the management of pH in container production, focusing on the role of water alkalinity, lime in soil, and fertilizer in maintaining appropriate pH levels to prevent iron deficiency in crops.
The document provides tips on how to protect and recover crops in a greenhouse after a fire, including venting the area, cleaning ash/residue from foliage, and applying a broad-spectrum fungicide to prevent pathogen entry.
The document provides a link to a video by Dr. Todd Cavins, offering top tips for the transplant process in greenhouses, including timely action, fungicide application, moisture management, nutrition, and irrigation cycling.
The document provides tips and considerations for novice growers interested in cultivating poinsettias, including understanding the market, calculating production costs, and considering pre-finished plants for initial years.
The document provides guidance on managing Integrated Pest Management (IPM) products in a greenhouse, emphasizing the importance of rotating products with different modes of action to prevent pest resistance, checking expiration dates, and preparing for potential supply chain shortages.
The video discusses the benefits of first-year flowering perennials, which can be grown like annuals, provide diverse colors, forms, and textures, and can be scheduled to bloom when customers are shopping, thus increasing sales.
The document is about a tutorial video by Chris Fifo on how to use a new first-year-flowering tool for greenhouse professionals to create perennial production plans.