Range of VariablesThe Range of Variables explains the contexts within which the performance and knowledge requirements of this standard may be assessed. The scope of variables chosen in particular training and assessment requirements may depend on the work situations available |
What requirements may management or marketing impose on the propagation plan? | Requirements may include budget limitations, propagation technique, controlling the growing environment; plant species, growth habits and cultural requirements; the purpose or intended use of the propagated plants, maintenance services for propagation after-care, quality specifications and timelines for the program. |
What propagation techniques might be required? | Propagation techniques may include seed, cuttings, layering, growing on tissue cultured plants, division or splitting, budding, grafting, spores and cloning. |
What environmental parameters may need to be considered in order to control the growing environment? | Environmental parameters may apply to a field nursery or environmentally controlled structure, and may include temperature, wind, light, humidity and frost. |
What OHS hazards may be identified as part of the plan for implementing propagation works? | Hazards may include air- and soil-borne micro-organisms, chemicals and hazardous substances, sharp hand tools and equipment, manual handling, solar radiation, dust, noise, machinery and machinery parts, slippery and uneven surfaces. |
What materials, equipment and machinery may be required for conducting propagation activities? | Materials, equipment and machinery may include shade cloth, plastic fencing, tape, support structures, labels, irrigation equipment, heaters, coolers, fans, vents, fogging/misting systems, screens; secateurs, propagation knives, razor blades and other cutting instruments; sharpening stone, strop, linear measure, grafting machine, plastic containers and trays, vermiculite boxes, wheelbarrow, trolley, mechanical trolley, shovel, water spray container, dibblers and rubbish bins. |
What propagation media requirements may need to be determined in order to meet plant needs? | Propagation media requirements will be specific to the species and method of propagation, and may need to be determined using recognised testing procedures for pH, drainage, aeration, salinity, nitrate levels and water repellence to ensure that it meets the needs of the propagation plan. Types of propagation media may include sand, potting mix, gravel, scoria, rock wool, gro-wool, sawdust, pine bark, perlite, vermiculite, water (hydroponics) and conditioners/additives. |
What strategies may be employed to modify the growing environment? | Strategies that may be employed to modify the growing environment include cooling by manual or automatic processes such as the use of vents, exhaust fans, evaporative coolers, wetting walls; heating by manual or automatic processes such as the use of wall heaters, ducts, heating lines or under-bed heating systems; controlling air circulation to maintain uniform temperatures and relative humidity, such as ventilation or wind breaks; use of artificial light; carbon dioxide enrichment, and irrigation. |
What selection criteria may be applied to propagation material relevant to this unit? | Selection criteria for propagation material may include company specifications and quality standards; the use of certified parent stock; ensuring parent stock is well nourished and healthy, free from disease, pest, frost or mechanical damage; results from recognised testing procedures, such as leaf tissue analysis; and the season. |
What hygiene requirements are relevant to propagation activities? | Hygiene requirements may involve hand washing, removing all media and organic matter from production surfaces, tools and equipment; disinfecting production surfaces, tools and equipment; disinfecting/sterilising propagation media; disinfestation and removal of plant and media waste, footbaths; access restrictions and handling practices which minimise cross contamination, including enterprise quarantine policies and legislation. |
What processes may be involved when propagated plants are assessed during after care? | Assessment will involve inspection, recognised analytical procedures, recording and interpreting production statistics. |
What remedial procedures may be applied to propagated plants? | Remedial procedures may be required in response to damage or loss, pest and disease problems, and marketing requirements, and may include quarantine/isolation procedures, schedule amended, integrated pest management, cultural intervention such as fertilising, misting, tip/root pruning, spraying growth hormones, light manipulation, temperature changes, increased/decreased humidity, tying, staking, taping; removing and disposing of damaged plant material, and irrigation. |
For more information on contexts, environment and variables for training and assessment, refer to the Sector Booklet. |
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