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Douglas Fir and Ponderosa Pine Seed Dormancy as Regulated by Grassland Seedbed Conditions

✍ Scribed by Yuguang Bai, Don Thompson and Klaas Broersma

Book ID
124296552
Publisher
Society for Range Management
Year
2004
Tongue
English
Weight
978 KB
Volume
57
Category
Article
ISSN
0022-409X

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Nitrogen metabolism of the needles of 40-yearold Douglas fir and Scots pine trees, growing in two forest stands on cation-poor and acidic sandy soil with a relatively high atmospheric nitrogen deposition was studied. The composition of the free amino acid (FAA) pool, the concentrations of total nitr