Rehabilitation of Understocked Loblolly-Shortleaf Pine Stands—III. Natural Stands Cutover 15 Years Previously but Unmanaged
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چکیده
منابع مشابه
Rehabilitation of Understocked Loblolly- Shortleaf Pine Stands- III. Natural Stands Cutover 15 Years Previously but Unmanaged
Plots in an unmanaged loblolly-shortleaf pine (Pinus taeda L.-P. echinata Mill.) stand that had been cutover I5 yrpreviously were established to representfive stocking levels: 10, 20, 30, 40, and 50%. The stand was on a good site (site indexLob = 90 ft at 50 yr) and had uneven-aged character. Two competition control treatments (none and individual tree release using herbicide) were also assigne...
متن کاملNatural Loblolly and Shortleaf Pine Productivity Through 53 Years of Management under Four Reproduction Cutting Methods
A study was ini t ia ted in 1943 to evaluate the longterm product iv i ty of loblol ly (Pinus taeda L.) and shortleaf pines (P. echinata Mill.) when managed under four reproduction cutting methods-clearcut, heavy seedtree, diameterl imit , and select ion-on the Upper Coastal Plain of southeastern Arkansas. Early volume production ref lected retent ion residual pines , and the clearcut was the l...
متن کاملDistinguishing features of loblolly and shortleaf pine seeds : implications for monitoring seed production in mixed stands
Monitoring seed production in mixed loblolly pinc shortlcaf pine (Pinus taeda L. and Pinus echinata Mill.. respectively) stands may require identifying individual weds hy species. Althuugh lublully pine seeds are UII average Ileavier and larger than thosc of shortleaf pine. there is considerable overlap in these properties for individual seeds. In this study the properties of six seer1 lnrs of ...
متن کاملLoblolly Pine Ssr Markers for Shortleaf Pine Genetics
—Simple sequence repeats (SSR) are highly informative DNA-based markers widely used in population genetic and linkage mapping studies. We have been developing PCR primer pairs for amplifying SSR markers for loblolly pine (Pinus taeda L.) using loblolly pine DNA and EST sequence data as starting materials. Fifty primer pairs known to reliably amplify polymorphic markers in loblolly pine were scr...
متن کاملDoes Prescribed Burning Have a Place in Regenerating Uneven-Aged Loblolly-Shortleaf Pine Stands?
Before the 1981 growing season, a s tudy was instal led in southeastern Arkansas to examine the eflects of three dormant-season burn intervals ( low, moderate, and highfrequency) and an unburned treatment on natural regeneration in uneven-aged stands of loblolly and shortleaf pines (Pinus taeda and P. echinata, respectively) . Merchantable pine basal areas were maintained by harvest ing on a 5 ...
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ژورنال
عنوان ژورنال: Southern Journal of Applied Forestry
سال: 1998
ISSN: 0148-4419,1938-3754
DOI: 10.1093/sjaf/22.1.47