Catalogue
Key to seed treatment
The key consists of treatments taken from the literature or gleaned from our nursery customers over many years. They are recommendations only. If you require further information on seed treatment, we recommend you seek expert advice.
Code
|
Description
|
Procedure
|
DS |
Dry sow
|
Sow the seed dry but keep the bed moist until the seed has germinated. |
S
|
Stratify
|
Water soak overnight and moist refrigerate (stratify) for number of weeks specified; e.g. S4 = water soak and storage in a moist condition at 5ºC for 4 weeks. Prior to sowing, dry the seed to dampness to aid sowing. |
HW
|
Hot water |
Place the seed in very hot water and then leave the water to cool for at least 24 hours prior to sowing the seed. |
W4 S4
|
Warm store, stratify |
Water soak only for no longer than 24 hours followed by warm moist storage for the specified number of weeks (in this case 4 weeks). Following this, refrigerate at 5ºC for the specified number of weeks (again 4 weeks in this case). These treatments are for seed with double dormancy. |
WS
|
Water soak |
Water soak only for no longer than 24 hours prior to sowing. |
MS
|
Moist store
|
Seeds that must be kept in a moist condition as they are perishable and cannot be held over. |
Radiata Pine seed pre-sowing treatment
Germination of radiata pine seed can be improved with treatment before sowing. Our opinion is that seed should at least be soaked in water for 48 hours before sowing. Our recommendation is to stratify (cold chill at about 4ºC while damp) radiata pine seed for at least 7 days and if possible 3 weeks before sowing, particularly when using CP seed. This is a recommendation only. Nursery sites vary considerably and nothing substitutes for local experience.
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