Low sweet blueberry reproduces vegetatively and by seed [72,111].
Seed: Plants generally first flower at approximately 4 years of age
. Researchers have reported a range of 56 to 64 seeds per berry
[21,153]. Viability ranges from 30 to 50 percent . Some clones
are self-fertile, others self-sterile . Flowers are generally
pollinated by wild bees . Shrubs with relatively few flowers may
fail to attract pollinators, and shrubs with fewer than 30 flowers
rarely produce fruit. Productive plants may bear more than 400 flowers
Seed dispersal: Seeds of low sweet blueberry are dispersed by various
birds and mammals [72,124]. In New England and the Maritime Provinces,
the American robin and black bear are particularly effective long
distance dispersal agents [72,100,,126,154]. Deer mice, chipmunks, and
the red-back vole are important local dispersers [9,100].
Seed banking: Seed banking has not been documented, but researchers
have reported the presence of seeds within the top layers of soil .
Seed can remain viable for up to 12 years when properly stored ,
and limited seed banking may occur.
Germination: In laboratory tests, germination ranged from 30 to 80
percent . Seed germinates best when exposed to light . Fresh
seed germinates readily at 70 degrees Fahrenheit (21 deg C) under a
regime of 16 hours light per 24-hour period . Germination generally
begins within 3 to 4 weeks and continues for 6 to 8 weeks .
Stratification and pretreatment with gibberellin can speed germination
Seedling establishment: Seedling establishment appears variable.
Seedlings are commonly observed in parts of the Maritime Provinces and
in northern Maine , where seeds germinate on open sites with high
moisture availability . Seedlings are sometimes observed in
clearcuts, on burned sites, and in abandoned fields . However,
seedlings are rare in eastern Ontario and in many other parts of this
species' range . In Ontario, seedling establishment is unlikely
unless the following conditions occur: (1) a cool spring follows
dispersal, (2) August and September are wet, (3) the winter is mild or
there is a good snow cover, and (4) the spring is wet. These conditions
have been observed only once during a 40-year period . Poor
seedling establishment is generally attributable to unfavorable soil
temperatures and water stress .
Vegetative regeneration: In many areas, vegetative expansion is the
primary mode of regeneration [8,153]. In the absence of disturbance,
clones increase by expansion of rhizomes [15,119,124]. After fire or
other types of disturbance, plants often sprout from the stem base, from
underground rhizomes , or from unburned belowground portions of
aerial stems . Rhizomes subjected to heat treatment often develop
significantly greater numbers of shoots than do untreated rhizomes .
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- 9. Ahlgren, Clifford E. 1966. Small mammals and reforestation following prescribed burning. Journal of Forestry. 64: 614-618. 
- 15. Barker, W. G.; Collins, W. B. 1963. Growth and development of the lowbush blueberry: apical abortion. Canadian Journal of Botany. 41: 1319-1324. 
- 21. Bell, Hugh P. 1957. The development of the blueberry seed. Canadian Journal of Botany. 35: 139-153. 
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- 100. Krefting, Laurits W.; Roe, Eugene I. 1949. The role of some birds and mammals in seed germination. Ecological Monographs. 19(3): 269-286. 
- 111. Mohr, H. A.; Kevan, P. G. 1987. Pollinators and pollination requirements of lowbush blueberry (Vaccinium angustifolium Ait. and V. myrtilloides Michx.) and cranberry .... Proceedings of the Entomological Society of Ontario. 118(0): 149-154. 
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- 142. Stark, Nellie M. 1989. The ecology of Vaccinium globulare: seedling establishment and nutrition. In: Wallace, Arthur; McArthur, E. Durant; Haferkamp, Marshall R., compilers. Proceedings--symposium on shrub ecophysiology and biotechnology; 1987 June 30 - July 2; Logan, UT. Gen. Tech. Rep. INT-256. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station: 164-168. 
- 153. Vander Kloet, S. P. 1976. A comparison of the dispersal and seedling establishment of Vaccinium angustifolium in Leeds Co., Ontario and Pictou Co., Nova Scotia. Canadian Field-Naturalist. 90(2): 176-180. 
- 156. Vander Kloet, S. P. 1985. Differences in vegetative and reproductive growth among Ontario, Nova Scotia and Newfoundland populations of Vaccinium angustifolium Aiton. American Midland Naturalist. 113(2): 397-400. 
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