*We examined the relationships between stem CO(2) efflux (E(s)), diameter growth, and nonstructural carbohydrate concentration in loblolly pine trees. Carbohydrate supply was altered via stem girdling during rapid stem growth in the spring and after growth had ceased in the autumn. We hypothesized that substrate type and availability control the seasonal variation and temperature sensitivity of...

Sereh wangi (Cymbopogen nardus) adalah salah satu jenis penghasil minyak atisri yang bernilai sangat tinggi. di Gayo Lues komoditas paling banyak diminati oleh masyarakat sekitar. Penyulingan sereh umumnya mengunakan sistem uap dan air bahan bakar digunakan kayu pinus (Pinus merkusii). Hal ini menjadi ancaman terhadap vegetasi hutan pinus, sehingga perlu alternatif mengalihkan dari kebutuhan al...

The GRAS protein family of putative transcription factors, which includes SHORT-ROOT (SHR), SCARECROW (SCR) and SCARECROW-LIKE (SCL) proteins, is involved in root development in Arabidopsisthaliana and other plant species [1]. In forest species, genes with homology to the A. thalianaSCR gene have been involved in the induction of somatic embryogenesis in Picea glauca (Moench) Voss [2] and Pinus...

Performance of longleaf (Pinus palustris Mill.) and loblolly pine (P. taeda L.) were compared 15–19 years after outplanting on 10 different sites in the sandhills of South Carolina. The study was established from 1988 to 1992 with bareroot seedlings artificially inoculated with Pisolithus tinctorius (Pt) or naturally inoculated with mycorrhizae in the nursery. A containerized longleaf pine trea...

Background & Aim: The most therapeutic properties of different species of Pinus class are antimicrobial and anti-inflammatory characteristics, soothing effect, resolver of skin itches, wound, acne and rash healer and improvement of ulcers and chronic lesions. In ancient medical literature of Iran, different parts of Pinus classes, particularly its resin, had been used for treat...

Fire is a critical management tool in natural and mature old-field pine uplands of the Coastal Plain in the southeastern United States (cf. Myers 1990, Hermann 1995). During the last 30 years, prescribed bums have gained almost universal acceptance within wildlife and natural resource agencies. However, for much of that time, prescribed bums were used almost exclusively to decrease fuel loads a...