Results 151 to 160 of about 24,108 (213)
Quantification of Carbonyl Groups in Lignin: <sup>31</sup>P NMR after Reduction. [PDF]
ACS Sustain Chem EngPajer N, Crestini C.
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Simulation of nitrogen distribution and its effects on productivity in even-aged loblolly pine plantations [PDF]
Jorgensen, J.R. +3 more
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Loblolly pine bark polyflavanoids
Journal of Agricultural and Food Chemistry, 1980The inner bark of Pinus taeda L. contains (+ )-catechin, the procyanidin 8.1 (a C-4 to C-8 linked (-)-epicatechin to (+)-catechin dimer), and three polymeric procyanidins that have distinctly different solubility and chromatographic properties. An ethyl acetate soluble polymer (0.20% of bark, Mft = 1200) was purified by chromatography on LH-20 Sephadex.
Joseph J. Karchesy, Richard W. Hemingway
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Journal of Forestry, 1938
Abstract During the fall and winter of 1936-37 fifty seed traps, set up in a Latin square design in and adjacent to a 70-year-old loblolly pine stand in the Duke Forest, Durham, N. C., were examined weekly. Loblolly pine seed fall started on October 14, 1936 and continued until the week of June 23, 1937. Maximum seed fall occurred during
A. L. MacKinney, C. F. Korstian
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Abstract During the fall and winter of 1936-37 fifty seed traps, set up in a Latin square design in and adjacent to a 70-year-old loblolly pine stand in the Duke Forest, Durham, N. C., were examined weekly. Loblolly pine seed fall started on October 14, 1936 and continued until the week of June 23, 1937. Maximum seed fall occurred during
A. L. MacKinney, C. F. Korstian
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Journal of Forestry, 1943
Abstract The following comments on Professor Chapman's bulletin on loblolly pine 1 are published as a contribution to our knowledge of the management of that species and also of the basic principles of forest management in general. The statement by Messrs.
Henry Bull +3 more
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Abstract The following comments on Professor Chapman's bulletin on loblolly pine 1 are published as a contribution to our knowledge of the management of that species and also of the basic principles of forest management in general. The statement by Messrs.
Henry Bull +3 more
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Green Chem., 2012
The torrefaction of Loblolly pine (Pinus taeda) was examined at 250 and 300 °C, to determine the effects of treatment temperatures on the chemical structure of the torrefied Loblolly pine. Solid-state cross-polarization/magic angle spinning (CP/MAS) 13C nuclear magnetic resonance (NMR) spectroscopy was used to characterize the torrefied and native ...
Haoxi Ben, Arthur J. Ragauskas
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The torrefaction of Loblolly pine (Pinus taeda) was examined at 250 and 300 °C, to determine the effects of treatment temperatures on the chemical structure of the torrefied Loblolly pine. Solid-state cross-polarization/magic angle spinning (CP/MAS) 13C nuclear magnetic resonance (NMR) spectroscopy was used to characterize the torrefied and native ...
Haoxi Ben, Arthur J. Ragauskas
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Southern Journal of Applied Forestry, 1991
Abstract A series of controlled-pollination tests with fresh pollen and pollen stored for up to 10 years demonstrates the conditions required to maintain high pollen viability and vigor. During handling, freshly extracted pollen is highly resistant to exposure to temperatures up to 50°C for as long as 24 hours.
David L. Bramlett, Frederick R. Matthews
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Abstract A series of controlled-pollination tests with fresh pollen and pollen stored for up to 10 years demonstrates the conditions required to maintain high pollen viability and vigor. During handling, freshly extracted pollen is highly resistant to exposure to temperatures up to 50°C for as long as 24 hours.
David L. Bramlett, Frederick R. Matthews
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Foliar nutrient comparisons of pitch pine, loblolly pine, and the pitch � loblolly hybrid
Plant and Soil, 1991Foliar analysis was conducted to determine the differences between macronutrient concentrations and contents of current year's fascicles of loblolly pine (Pinus taeda L.), pitch pine (P. rigida Mill.), and first (F1) and second (F2) generation plantations of the pitch × loblolly hybrid (P. rigida × taeda). No significant differences in foliar P, K, Ca,
J. E. Johnson +4 more
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Root-Grafting in Loblolly Pine
Botanical Gazette, 1965Living loblolly pine stumps (Pinus taeda L.) appear to be relatively uncommon, but not rare. Excavation of roots and application of a P32 solution to two living stumps showed that they were connected with living trees by means of natural root grafts formed some time before the trees reached 35 years of age.
Lee Miller, Frank W. Woods
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Pitch X Loblolly Pine Hybrids: Loblollies for the North?
Journal of Forestry, 1979Abstract From controlled pollinations in a New Lisbon, New Jersey, orchard of selected pitch (Pinus rigida) and loblolly (P. taeda) pines, 29 test plantings have been made in nine states. Results indicate that well-formed, rapid-growing, winter-hardy trees can be produced by careful selection of parents and screening of hybrids.
Silas Little, I. Frederick Trew
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