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northern cross seeds

Northern cross seeds

Northern Cross by Glen’s Plant Farm is a combination of two sativa-dominant hybrids built for potency and trichome production. With dense buds that smell of bright citrus and earth, this Chernobyl x Permafrost pairing is dreamy and uplifting while imbuing the body with relaxed contentment. Enjoy Northern Cross throughout the day for its calming physical attributes and mood elevation.

Northern Cross by Glen’s Plant Farm is a combination of two sativa-dominant hybrids built for potency and trichome production. With dense buds that smell of bright citrus and earth, this Chernobyl x Permafrost pairing is dreamy and uplifting while imbuing the body with relaxed contentment. Enjoy Northern Cross throughout the day for its calming physical attributes and mood elevation.

Northern cross seeds

Variation in plant species composition, abundance of seeds in the soil seed bank and standing vegetation, over the course of a post-fire succession was investigated in coastal Calluna-heathlands in Western Norway. Vegetation and seed banks were analysed over a 24-year post-fire period. The total diversity of vegetation and seed bank were 60 and 54 vascular plant taxa respectively (39 shared species), resulting in 68% similarity. Over the 24 years the heathland community progressed from open newly-burnt ground via species rich graminoid- and herb-dominated vegetation to mature heather Calluna vulgaris-dominated heath. This post-fire succession was not reflected in the seed bank; the 10 most abundant species constituted 98% of the germinated seeds. The most abundant were Calluna (49%; 12,018 seeds/m2) and cross-leaved heath Erica tetralix (34%; 8,414 seeds/m2). Calluna showed significantly higher germination in the two first years following burning. Vegetation species richness (ranging 23 to 46 species/yr) was highest in the middle years of the post-fire succession period. In contrast, the seed bank species richness (21 to 31 species/yr) showed no trend. This suggests that the seed bank act as a refuge, providing a source of recruits for many species that colonize newly-burnt areas. The traditional management regime has not depleted or destroyed the seed banks, and continuing management is necessary to ensure perpetuation of the heathlands.

Published source details MÃ¥ren I.E. & Vandvik V. (2009) Prescribed burning and the role of seed banks in post-fire succession of northern heathlands, Lygra and Lurekalven islands, Hordaland, Norway. Conservation Evidence, 6, 48-56.

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

Output references

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Summary