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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 45, Number 4 (1994) → Importance of Release for Naturally Seeded and Planted Container Loblolly Pines on Cutover Site

Importance of Release for Naturally Seeded and Planted Container Loblolly Pines on Cutover Site

Genetically improved container loblolly pine (Pinus taeda L.) seedlings were compared to naturally established loblolly seedlings on a cutover pine site. Measurement pines on 6 of 12 plots were released from woody and herbaceous competition in a 61-cm (2 ft) radius around each tree stem. Woody competition was controlled by hand cutting for 5 consecutive years, and herbaceous competition was controlled with herbicides for 4 consecutive years. Competition control increased 6-year survival by 26% for both natural and planted pines. Six years after field establishment, planted pines had a 73% higher volume index than naturally established pines. Large volume gains resulted from release for both regeneration techniques (544% for planted pines and 663% for naturally established pines).


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Author(s): Michael D. Cain, James P. Barnett

Publication: Tree Planters' Notes - Volume 45, Number 4 (1994)

Volume: 45

Number: 4