Hybridization of labelled cDNA from various cell types with high-density arrays of expressed sequence tags is a powerful technique for investigating gene expression. Few conifer cDNA libraries have been sequenced. Because of the high level of sequence conservation between Pinus and Picea we have investigated the use of arrays from one genus for studies of gene expression in the other. The parti...

concentration and size of induced lesions were determined following inoculation of stems of slash pine (Pinus elliottii Englm. var. elliottii) and loblolly pine (Pinus taeda L.) with Ophiostoma minus (Hedgc.) H.P. Sydow, O. ips (Rumb.) Nannf or sterile water. In a second experiment, the rate of ethylene production and monoterpene concentration were determined following inoculation of slash pine...

Cain, M.D., 1991. Hardwoods on pine sites: competition or antagonistic symbiosis. For. Ecol. Manage., 44: 147-160. Early development of natural loblolly (Pinus taeda L.) and shortleaf pine (Pinus echinata Mill.) regeneration was monitored in two research studies and two research demonstrations between 1980 and I989 in southern Arkansas. Site preparation and hardwood control incorporated the use...

This work aimed to investigate the potential of image-derived indices derived from Sentinel-2/MSI images in volumetric modeling a stand Pinus taeda L. located Bom Retiro, State Santa Catarina. For this purpose, field data forest inventory were used, by fixed area method and simple random sampling with an allocation 18 circular plots 400 m². The remotely comprised orbital image sensor. From imag...

Seeds of loblolly pine, Pinius taeda L., and of wlhite pine, P. strob!s L., which require a long moist treatment at a low temiiperature (stratificationl) for conmplete germination, were chosen for this study. Seeds of the former species require 30 to 90 days at 2 to 3 C and those of the latter 30 (lavs at 10 C or 60 lays at 4C (27). The purpose of the work was to investigate responses of these ...

Indirect ELISA was used to quantify (+)-abscisic acid (ABA) in developing zygotic embryo and megagametophyte tissues from two loblolly pine (Pinus taeda L.) mother trees. On a dry weight basis, embryonic and megagametophytic ABA concentrations were highest during early development and decreased steadily to their lowest values at cone ripening. Embryonic ABA concentration was significantly highe...