Control the temperature
Temperature influences the speed to root cuttings. Higher temperature produces faster effect. If possible keep the temperature between 65-70F. High temperature accelerates fungus and bacterial growth above 70F. High temperature of the ambient air stimulates the growth of shoots at the expense of roots. Keep the air temperature lower than the soil temperature.
Control the light
After Rhizopon AA or Hortus IBA Water Soluble Salt treatment and planting in media the cuttings need light and water. For cuttings with leaves light is required for photo-synthesis to develop natural foods in the form of carbohydrates. Provide shade on bright, hot days to avoid scalding the cuttings. Cuttings without leaves do not require light for rooting; they depend upon stored carbohydrates.
Control the humidity
 To prevent the cuttings from dehydrating through the leaves and stems the cuttings are often propagated under mist systems in controlled greenhouses or tunnels, in cutting trays covered with plastic.
Control hardening off
After root initiation harden off slowly by reducing the temperature and humidity. Frequently observe the growing environment and take action to assure that there are no fungus, insects, pathogens, etc. After the cuttings are rooted control the environment to bring the temperature and humidity to the ambient level.
Control the carbon dioxide
Maintain the carbon dioxide at about 1000 ppm.
Testing is essential
The condition of the cuttings or the rooted plant and the resultant rooting potency varies from season to season. Check the results regularly. Adjust the dosage, timing and method of application of Rhizopon AA or Hortus IBA Water Soluble Salt rooting products and other propagation materials. Fluctuation in the climate of the propagation area, varying light intensity, humidity, wetness of the media, type of media, frequency of watering, fungus growth, insect infestation, etc., will affect results. Carrying out a few tests will not take much time. The tests will keep you up to date with results. Tests go along with your normal growing operations and allow you to make timely corrective actions.
The Cuttings:
Cutting selection
Types of cuttings
Care of cuttings after treatment
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