These seedlings have been shown to be field-hardy in a number of environments throughout New Zealand and have been selected for floral density and flowering times. The initial selection of these genomes involved analysis of honey crops in areas that consistently yielded manuka honey with elevated UMF levels. Parent material was sourced from homogenous districts of Leptospermum scoparium. This parent material was subjective to a number of evaluations, including field adaptability and honey potential, and the best candidates were propagated to form trial plantation seed orchards.
These seed orchards have been further evaluated, poor-performing individuals have been removed, and the seed for CVT seedline is harvested from the remaining parents. Flowering time and geographic separation ensures that the CVT seedline parentage remains true to type.
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The CVT 1 seedline flowers early in September and is only suitable for warm sheltered environments where the honey bee can work in early spring. This variety is not adapted to summer-dry hill country, however will perform well given an appropriate environment.
UMF potential (based on DHA Levels): 5500*
Terrain = Warm sheltered environments where bees will work in early spring
Not suited for: Very windy conditions, Frosty, dry Summer conditions
CVT 2 is a generalist seedline and is suitable for widespread distribution throughout New Zealand. CVT 2 typically flowers in October into November, and consequently is a prime candidate for honey harvest. This seedline is adaptable to hill country and the variety is encountered from Northland to the Marlborough Sounds and Nelson province.
CVT 3 flowers in November into December and is well-adapted to exposed conditions and exhibits a high degree of drought-tolerance. Accordingly, this seedline is useful for ridgelines and exposed north facing slopes in plantation development.
CVT 4 exhibits a higher degree of cold-tolerance, and furthermore whilst is successful on moderate hill country is also adapted to a degree of water-logging. CVT 4 typically flowers in December during the start of summer and yields a robust honey crop.
The parent stock for this seedline is a number of PVR clones that display elevated beneficial characteristics, for example floral density and honey potential. This seedline flowers predominantly in October and can be used in lieu of CVT 2 where conditions are suitable.
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