Estimating Sound Seeds per Cone in White Spruce
نویسندگان
چکیده
منابع مشابه
Estimating Per-Locus Mutation Rates
Relative per-locus mutation rates for Y-DNA microsatellites, and also for mitochondrial DNA singlenucleotide polymorphisms, can be estimated directly from diverse collections of haplotypes without segregating population components. The calibrated average mutation rates for the FTDNA panels of 12, 25, and 37 loci are 0.00187±0.00028, 0.00278±0.00042, and 0.00492±0.00074, respectively, from a col...
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Seedlings from 18 provenances along a coast–interior transect in the Picea sitchensis (Bong.) Carrière × Picea glauca (Moench) Voss introgression zone in northwestern British Columbia were mechanically wounded at the beginning of their third growing season to simulate natural attack by the white pine weevil, Pissodes strobi (Peck). Constitutive resin canals (CRC) in the cortex and traumatic res...
متن کاملReflectance of Alaskan black spruce and white spruce foliage in relation to elevation and latitude.
Leaf reflectance at visible and near-infrared wavelengths (400-1000 nm) is related primarily to pigmentation, leaf structure and water content, and is an important tool for studying stress physiology and relationships between plants and their growth environment. We studied reflectance of two co-occurring Alaskan conifers, black spruce (Picea mariana (Mill.) BSP) and white spruce (Picea glauca (...
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Local distributions of black spruce (Picea mariana) and white spruce (Picea glauca) are largely determined by edaphic and topographic factors in the interior of Alaska, with black spruce dominant on moist permafrost sites and white spruce dominant on drier upland sites. Given the recent evidence for climate warming and permafrost degradation, the distribution of white spruce is expected to expa...
متن کاملCO2 in white spruce shoot primordia entering winter dormancy
Feeding [1-C]-guanidinoacetic acid to shoot primordia, O2 uptake was inhibited and major products were C-glycine, CO2 and C-serine. The direct decarboxylation of [1-C]-guanidinoacetic acid to CO2 and N-methylguanidine, the methylation of [1-C]-guanidinoacetic acid to C-creatine, and the lytic cleavage to urea and C-glycine were all ruled out. Enzymatic transamidinations of [1-C]-guanidinoacetic...
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ژورنال
عنوان ژورنال: The Forestry Chronicle
سال: 1989
ISSN: 0015-7546,1499-9315
DOI: 10.5558/tfc65266-4