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Title: Effects of Early Release on Natural Versus Container Loblolly Pines 12 Years After Field Establishment
Author: Cain, Michael D.; Barnett, James P.;
Source: Southern Journal of Applied Forestry, Vol. 26, No. 4, p. 173-180 November 2002.
Publication Series: Miscellaneous Publication
Description: Genetically improved, container loblolly pine (Pinus taeda L.) seedlings were compared to naturally established loblolly seedlings on a cutoverpine site. Crop pines on 6 of 12 plots were releasedfrom woody and herbaceous competition within a 2 ft radius of each stem. On release plots, woody competition was controlled by hand-cutting for 5 consecutive yr and herbaceous competition was controlled with herbicides for 4 consecutive yr ufterpine establishment. Competition control increased 12 yr survival by 68 percentage points for natural pines and by 47 percentage points for planted pines. Twelve years afterfield establishment, mean-tree volume ofplantedpines was no different than that of naturally established pines. Nevertheless, volume gains of 150% to 200% were achieved within regeneration techniques as a result of release.
Keywords: Container pines, herbaceous competition, natural regeneration, Pinus taeda L., woody competition
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Cain, Michael D.; Barnett, James P. 2002. Effects of Early Release on Natural Versus Container Loblolly Pines 12 Years After Field Establishment. Southern Journal of Applied Forestry, Vol. 26, No. 4, p. 173-180 November 2002.
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