scholarly journals Quantitative and qualitative evaluation of Northern red oak (Quercus rubra L.) in arid areas of North-Western Bohemia

2018 ◽  
Vol 64 (No. 2) ◽  
pp. 53-58
Author(s):  
Kupka Ivo ◽  
Baláš Martin ◽  
Miltner Stanislav
Keyword(s):  
Quercus Rubra ◽  
Qualitative Evaluation ◽  
Red Oak ◽  
Northern Red Oak ◽  
Wood Production ◽  
Additional Species ◽  
Sessile Oak ◽  
Quality Health ◽  
North Western

The article analyses growth and quality of Northern red oak (Quercus rubra Linnaeus) based on 13 research plots (seven in red oak stands and six in sessile oak stands) with the ages between 17 to 159 years. The collected data includes height, DBH, crown diameter, stem and crown quality, health status of each tree on the plot. Analogous plots were chosen in sessile oak (Quercus sessilis Linnaeus) stands on similar sites to get reference data. The results proved the high wood production potential of red oak when compared to sessile oak being at the same or higher quality and health. The data propose the red oak to be a good additional species in lowland stands.

scholarly journals Influence of acorn size on morphological characteristics of one-year-old Northern red oak (Quercus rubra L.) seedlings

2015 ◽  
Vol 67 (4) ◽  
pp. 1357-1360
Author(s):  
Vladan Popovic ◽  
Aleksandar Lucic ◽  
Ljubinko Rakonjac ◽  
Tatjana Cirkovic-Mitrovic ◽  
Ljiljana Brasanac-Bosanac
Keyword(s):  
Quercus Rubra ◽  
Morphological Characteristics ◽  
Red Oak ◽  
Northern Red Oak ◽  
Collar Diameter ◽  
Acorn Size ◽  
One Year ◽  
Root Collar ◽  
Oak Seedlings

The aim of this research was to examine the influence of acorn size on morphological characteristics of one-year-old Northern red oak (Quercus rubra L.) seedlings. The quality of seedlings correlates with the quality of the seed they are derived from. In species with large seeds, as in the case of Northern red oak, the seedling growth in the first growing season is closely related to seed size or the amount of reserve nutrients that are stored in the seed. The height and root collar diameter of one-year-old Northern red oak seedlings increases with increase in acorn size. The results obtained in this research can be used as a guideline for acorn grading, because they show that improved Northern red oak seedlings quality can be achieved using seeds of appropriate size.

scholarly journals Effects of Northern red oak (Quercus rubra L.) and sessile oak (Quercus petraea (Mattusch.) Liebl.) on the forest soil chemical properties

2016 ◽  
Vol 62 (3) ◽  
pp. 169-172 ◽  
Author(s):  
Stanislav Miltner ◽  
Ivo Kupka ◽  
Michal Třeštík
Keyword(s):  
Forest Soil ◽  
Quercus Rubra ◽  
Base Saturation ◽  
Total Carbon ◽  
Red Oak ◽  
Northern Red Oak ◽  
Soil Layers ◽  
Sessile Oak ◽  
Exchangeable Acidity ◽  
Exchangeable Al

AbstractNorthern red oak (Quercus rubraL.) is one of the most important introduced tree species in the Czech Republic, occupying about 6,000 ha with ca. 900,000 m3of the standing volume. The presented study aims to evaluate its soil forming effects on natural oak sites. Soil chemistry of the upper soil layers (F+H, Ah, B horizons) was studied in three pairs of stands of both species. In each stand, four bulk samples were taken separately for particular horizons, each consisting of 5 soil-borer cores. The soil characteristics analysed were: pH (active and potential), soil adsorption complex characteristics (content of bases, exchangeable cation capacity, base saturation), exchangeable acidity (exchangeable Al and H), total carbon and nitrogen content, and plant available nutrients content (P, K, Ca, Mg). Total macronutrient content (P, K, Ca, Mg) was analysed only in holorganic horizons. Results confirmed acidification effects of red oak on the upper forest soil layers such as decreased pH, base content, base saturation, all nutrient contents in total as well as plant-available form and increased soil exchangeable acidity (exchangeable Al) in comparison to the sessile oak stands, especially in holorganic horizons and in the uppermost mineral layer (Ahhorizon). Northern red oak can be considered as a slightly site-soil degrading species in the studied sites and environmental conditions in comparison to native oak species.

Effects of acorn size and mass on seedling quality of northern red oak (Quercus rubra)

New Forests ◽  
2018 ◽  
Vol 49 (4) ◽  
pp. 571-583 ◽  
Author(s):  
Stacy L. Clark ◽  
Scott E. Schlarbaum
Keyword(s):  
Quercus Rubra ◽  
Seedling Quality ◽  
Red Oak ◽  
Northern Red Oak ◽  
Acorn Size

scholarly journals Spray deposition inside multiple-row nursery trees with a laser-guided sprayer1

2017 ◽  
Vol 35 (1) ◽  
pp. 13-23 ◽  
Author(s):  
H. Zhu ◽  
H. Liu ◽  
Y. Shen ◽  
Hengyu Liu ◽  
R. H. Zondag
Keyword(s):  
High Speed ◽  
Laser Scanning ◽  
Quercus Rubra ◽  
Spray Deposition ◽  
Field Tests ◽  
Red Oak ◽  
Northern Red Oak ◽  
Tree Structures ◽  
Speed Sensor ◽  
Tilia Tomentosa

Abstract Multiple-row container-grown trees require specially designed sprayers to achieve efficient spray delivery. A five-port air-assisted sprayer with both automatic and manual control modes was developed to discharge adequate spray deposition inside multiple-row trees. The sprayer resulted from integration of a high-speed laser-scanning sensor with a sophisticated nozzle flow control system, an embedded computer with a touch screen, a Doppler speed sensor, a specially-designed algorithm and an air-assisted sprayer base. It was able to detect target tree presence and measure target tree size, shape and leaf density. The sprayer then controlled the spray output of each nozzle to match tree structures. The sprayer was tested for its sprayer deposition quality inside canopies in a four-row sterling silver linden (Tilia tomentosa 'Sterling Silver' Moench) field and another six-row northern red oak (Quercus rubra L.) field. Tests were conducted with the sprayer in variable-rate application (VRA) and constant-rate application (CRA) modes. The average spray deposit on foliage of trees was 1.37±0.47 μL cm−2 from VRA and 1.29±0.42 μL cm−2 from CRA in linden, and was 2.15±0.57 μL cm−2 from VRA and 2.72±0.94 μL cm−2 from CRA in red oak, respectively. In comparison, spray coverage on foliage of trees was 19.8±3.0% from VRA and 20.9±4.3% from CRA in the linden trial, and was 27.9±3.7% from VRA and 30.5±5.4% from CRA, respectively, in the red oak trial. The newly developed air-assisted sprayer in both VRA and CRA modes would be able to discharge adequate spray deposition inside multiple-row tree plants while conserving pesticide. Index words: environmental protection, pest control, pesticide, precision sprayer, spray coverage. Species used in this study: sterling silver linden (Tilia tomentosa 'Sterling Silver' Moench), northern red oak (Quercus rubra L.).

scholarly journals Auger Planting of Oak Seedlings

2003 ◽  
Vol 20 (2) ◽  
pp. 92-93
Author(s):  
Eric Heitzman ◽  
Adrian Grell
Keyword(s):  
Quercus Rubra ◽  
Red Oak ◽  
Northern Red Oak ◽  
White Oak ◽  
Growing Seasons ◽  
Oak Seedlings

Abstract In 2001, we used power augers to plant 1-0 northern red oak (Quercus rubra) and white oak (Q. alba) seedlings in stony soils in Arkansas. After two growing seasons, red oak and white oak survival was 86% and 91%, respectively. Both species had only grown an average of 1 ft in height in 2 yr. North. J. Appl. For. 20(2):92–93.

scholarly journals Effect of Overstory and Understory Vegetation Treatments on Removal of Planted Northern Red Oak Acorns by Rodents

2002 ◽  
Vol 19 (2) ◽  
pp. 88-92 ◽  
Author(s):  
Terry L. Sharik ◽  
David S. Buckley
Keyword(s):  
Quercus Rubra ◽  
Canopy Cover ◽  
Pinus Resinosa ◽  
Red Pine ◽  
Red Oak ◽  
Northern Red Oak ◽  
Herb Layer ◽  
Oak Regeneration ◽  
Layer Removal ◽  
Acorn Removal

Abstract We documented patterns in the removal of planted northern red oak (Quercus rubra) acorns by rodents in red pine (Pinus resinosa) stands during a field study of oak regeneration in northern Lower Michigan. Each stand contained four overstory treatments assigned at random: clearcut, 25% cover, 50% cover, and uncut (control). Each level of canopy cover contained four randomly assigned understory treatments: shrub-layer removal, herb-layer removal, litter removal, and a control. Rodents removed acorns from 59% of the seed spots in the uncut control and 12% of the seed spots in the clearcut treatment. This five-fold difference was significant. Acorns were removed from 48% and 40% of the seed spots in the 75% and 50% canopy cover treatments, respectively. Differences in acorn removal between understory treatments were not significant. These results suggest that overstory vegetation treatments can influence the removal of planted acorns by rodents, which has implications for the use of direct seeding for artificially regenerating northern red oak.

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