scholarly journals Growth of Austrian pine (Pinus nigra Arnold) treated with soil conditioners on Loket spoil bank

2012 ◽  
Vol 52 (No. 12) ◽  
pp. 556-564 ◽  
Author(s):  
P. Bulíř
Keyword(s):  
Substrate Surface ◽  
Pinus Nigra ◽  
Height Growth ◽  
Elongation Growth ◽  
Seedling Mortality ◽  
Spoil Bank ◽  
Soil Conditioners ◽  
Second Year ◽  
One Year ◽  
The Given

The effects of soil conditioners Frisol, TerraCottem, Bi-algeen, and fertilisers Silvamix Forte and Cererit on the welfare of Austrian pine were observed in a seven-year experiment on Loket spoil bank. Simultaneously the economic aspects of growing the Austrian pine until the stage of established plantation were examined. The application of products one year and a half after planting did not cause seedling mortality. The elongation growth of young plants conditioned by the application of Silvamix Forte and Frisol was statistically significant whereas these effects manifested themselves in the second year: they persisted till the end of the experiment for Silvamix Forte, and for three years in total for Frisol. The other products – TerraCottem, Bi-algeen and Cererit – also showed generally better, though statistically insignificant results as compared to those of the control plants. The elongation growth for all products culminated in the fifth year and then declined. The stem diameter growth for the best products reached its maximum in the second year. Regarding the overall height growth after seven years, the average number of the highest plants on the experiment location was on plots treated with Silvamix Forte; these plants exceeded the control plants by 46.2 cm. Pines treated with Frisol were higher by 23.4 cm. However, the application of soil conditioners and fertilisers to the given location proved economically ineffective because there was no need to improve the soil at the location, the same applies to mowing and hoeing since almost no forest weed grew there and the substrate surface remained well-aerated and porous.

Cyclanilide Spray Increases Branching in Containerized Whip Production

2007 ◽  
Vol 25 (4) ◽  
pp. 221-228
Author(s):  
Petra Sternberg ◽  
Daniel K. Struve
Keyword(s):  
Shoot Elongation ◽  
Major Goal ◽  
Mature Tree ◽  
Lateral Branching ◽  
Reduced Height ◽  
Second Year ◽  
One Year ◽  
Tree Quality ◽  
Tree Pruning ◽  
Number Of Branches

Abstract A major goal in the production of tree whips is to produce appropriately sized, well-branched liners with a crown form similar to that of a mature tree. Pruning is used to induce lateral branching. This can result in poor tree quality, reduced growth and the practice is labor intensive. An alternative to mechanical pruning, foliar Cyclanilide® (CYC) sprays at 0, 56, 1 12 and 223 ppm were applied to container grown whips to determine its effect on branching of Amelanchier; Cercis, Malus and Tilia whips. Most species responded to CYC sprays with increased lateral branching if treated during active shoot elongation. Cyclanilide® sprays of 1 12 ppm produced the greatest number of branches. Sprays at 56 ppm resulted in reduced branching (relative to 112 ppm), while sprays of 223 ppm did not increase the number of branches, relative to sprays of 112 ppm, but reduced growth. Cyclanilide® sprays reduced height growth, relative to untreated whips, but did not alter height diameter growth. Cyclanilide® foliar applications to container -grown whips during periods of active shoot elongation increased branching in one-year-old whips that normally do not branch until the second year of production. Further, the origin of lateral branching can be controlled by timing of CYC application. The results indicate that CYC foliar sprays can be an important tool in the production of one-year-old branched whips.

scholarly journals Performance Data from the NIST Net-Zero Energy Residential Test Facility

2017 ◽  
Vol 122 ◽  
Author(s):  
William M Healy ◽  
A Hunter Fanney ◽  
Brian P Dougherty ◽  
Lisa Ng ◽  
Vance Payne ◽  
...  
Keyword(s):  
Hot Water ◽  
Test Facility ◽  
Indoor Environments ◽  
Zero Energy ◽  
Operational Strategies ◽  
Photovoltaic Array ◽  
Net Zero Energy ◽  
Net Zero ◽  
Second Year ◽  
One Year

Data were collected over two separate year-long test periods at the Net-Zero Energy Residential Test Facility, alaboratory designed to evaluate a variety of technologies and operational strategies that lead to energy efficient houses with comfortable and healthful indoor environments. In a net-zero energy building, all energy consumption over the course of a year is offset by on-site renewable energy production; this facility attempts to meet that goal through use of a photovoltaic array installed on the roof. Data are presented for one-year test periods over which the research team examined whether the facility would reach net-zero status. In both years, the house was operated in an all-electric configuration, with slight modifications made in the second year related to control schemes and equipment selection. A virtual family of four was simulated to carry out the operations that would typically occur in a home (e.g., appliance usage, lighting usage, hot water usage). Data are being released for the second year of operation at the time of publication of this document, with an expectation that data from the first year will be released at a later date.

Pliny in Bithynia–and what Followed

1979 ◽  
Vol 26 (2) ◽  
pp. 119-131 ◽  
Author(s):  
Barbara Levick
Keyword(s):  
Financial Expert ◽  
Second Year ◽  
One Year ◽  
Full Charge

The view that the younger Pliny was sent to the province of Pontus et Bithynia (Bithynia for short) as a ‘financial expert’ who would deal with the accounts of the cities has been thoroughly and properly discredited. Pliny in his province did all the things that his predecessors and successors did or might have done. His funerary inscription at Comum shows him to have been legatus pro praetore consulari potestate, an imperial legate, but with consular power; the regular governors had been proconsuls, men appointed by the senate for one year only after drawing lots for the post with their fellows of equal seniority. But in spite of their title they had been only ex-praetors, while Pliny had held the consulship; hence his cansularis potestas, which secured him the same number of fasces as they had enjoyed, one more than he could have held as a plain legatus Augusti pro praetore. Pliny was a governor of superior standing, chosen by Trajan on the strength of a decree of the senate, to take full charge of the province and to correct all the abuses that were rampant there (‘quoniam multa in ea emendanda apparuerint’, 32.2); and he died in office near the end of his second year of tenure.

scholarly journals Fertilizing of young rubber in the Cameroons.

1960 ◽  
Vol 8 (3) ◽  
pp. 165-178
Author(s):  
H.N. Hasselo
Keyword(s):  
Phosphate Rock ◽  
Growth Response ◽  
Nutrient Status ◽  
Nutrient Supply ◽  
Parent Material ◽  
Rooting Depth ◽  
First Year ◽  
Second Year ◽  
One Year ◽  
Shallow Soils

The growth response to (NH4)2SO4, phosphate rock and KC1, given in all combinations at increasing annual rates of up to 24 oz/tree until the seventh year after planting, was measured by the girth increase of Hevea in three soils formed from the same parent material but possessing different nutrient status and depths to the root-impeding layers. Despite poor nutrient supply in the soil, lack of rooting depth had a greater effect on growth than had nutrient availability; while abundant nutrient supply reduced the unproductive period by half a year, this reduction was at least one year in shallow soils. Annual fluctuations in yield were reduced by balanced application of small amounts of fertilizers. Fertilized trees, opened up at 18-inch girth, yielded 430 lb/acre in the first year whether given balanced fertilizer or not; in the second year, trees given balanced fertilizer yielded 700 lb as compared with 580 lb without fertilizer. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Suppression of serum thyrotropin with thyroxine in patients with Graves' disease: effects on recurrence of hyperthyroidism and thyroid volume

1997 ◽  
Vol 136 (1) ◽  
pp. 81-86 ◽  
Author(s):  
Johannes Pfeilschifter ◽  
Reinhard Ziegler
Keyword(s):  
Beneficial Effect ◽  
Combined Treatment ◽  
Thyroid Volume ◽  
Suppressive Therapy ◽  
Graves Disease ◽  
Serum Concentrations ◽  
Recent Onset ◽  
Suppressive Dose ◽  
Second Year ◽  
One Year

Abstract Based on findings that thyroxine may have a beneficial effect on the recurrence of Graves' hyperthyroidism, we prospectively studied the effects of a TSH suppressive treatment with thyroxine on the course of Graves' disease in fifty patients with recent onset of hyperthyroidism. After the normalization of serum tri-iodothyronine (T3) and thyroxine (T4) concentrations, one group of patients was randomly assigned to a combined treatment with carbimazole and a TSH suppressive dose of T4 for 12 months, followed by another 12 months of TSH suppressive therapy alone. The other group of patients also received carbimazole for one year, but T4 was only added as indicated to normalize elevated TSH serum concentrations, and patients received no therapy during the second year. By the end of the second year, a relapse of hyperthyroidism had occurred in 43% of the patients with and in 45% of the patients without suppressive T4 treatment. In those patients without a relapse of hyperthyroidism, initial thyroid size significantly (P = 0·01) decreased with time in both treatment groups. However, patients on suppressive T4 treatment tended to have a greater reduction in thyroid volume than patients with normal TSH serum concentrations (P = 005). In conclusion, we were unable to detect a preventive effect of exogenous TSH suppression on the recurrence of hyperthyroidism. However, our data suggest that TSH suppressive treatment may have a beneficial effect on thyroid enlargement in Graves' disease. European Journal of Endocrinology 136 81–86

scholarly journals The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance

2008 ◽  
Vol 54 (No. 12) ◽  
pp. 533-544 ◽  
Author(s):  
M. Barna
Keyword(s):  
Natural Regeneration ◽  
Growth Conditions ◽  
The Other ◽  
Limiting Factor ◽  
Beech Forests ◽  
Clear Cut ◽  
One Year ◽  
Cutting Regimes ◽  
Cutting Intensity ◽  
The Given

The paper summarizes the results of 15-year natural regeneration for beech of five plots with different densities situated in the Western Carpathians Mts. Three of the plots were subjected to differently intensive shelterwood cuttings (plots L, M, H), one plot was clear-cut (CC), and one was left without intervention – as a control (C). The number of one-year-old seedlings decreased proportionally with increasing cutting intensity. The ANOVA results document a significant influence of cutting intensity on the abundance of both one-year-old and older seedlings. The abundance of beech seedlings was initially increasing with increasing cutting intensity, and, having reached the peak on plot M (medium intensity), there followed a decrease in the seedling abundance. Lower numbers of beech seedlings on plots subjected to less intensive cutting (C, L) result from less favourable growth conditions in comparison with plot M. On the other hand, cutting of higher intensity (H, CC) resulted in lower numbers of fructifying parent trees. The medium cut intervention having provided the plot M with stocking of 0.5 (50% of the stand) resulted in a lower number of seed resources (limiting factor for natural regeneration). However, for the other factor – seedling establishment (survival and recruitment) this plot (M) represents an ecological optimum in beech regeneration in the given conditions.

scholarly journals Conversion of Pinus nigra Plantations with Natural Regeneration in the Slovenian Karst: The Importance of Intermediate, Gradually Formed Canopy Gaps

Forests ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 1136
Author(s):  
Jurij Diaci ◽  
Tomaž Adamič ◽  
Andrej Rozman ◽  
Gal Fidej ◽  
Dušan Roženbergar
Keyword(s):  
Natural Regeneration ◽  
Soil Depth ◽  
Pinus Nigra ◽  
Quercus Petraea ◽  
Summer Drought ◽  
Natural Disturbances ◽  
Site Factors ◽  
Insect Infestations ◽  
One Year ◽  
Ostrya Carpinifolia

Since the mid-19th century, Pinus nigra plantations have played a key role in the restoration of degraded European landscapes. Nowadays, these plantations are aging and prone to natural disturbances, insect infestations, and diseases. For their successful gradual conversion, knowledge of optimal gap spatiotemporal dynamics is crucial. We studied herb and natural regeneration patterns along with site factors on 477 subplots within 44 plots distributed over four stand types: closed stand (14% diffuse light), open stand (21%), gap edge (23%), and gap (57%). Despite the abundant Quercus petraea, Q. cerris, and Q. pubescens mast year, no one-year seedlings were recorded, which is likely due to the summer drought. Short seedlings (h < 20 cm) of Quercus sp., Fraxinus ornus and Ostrya carpinifolia were more successful within closed stands. Short Quercus seedlings were positively associated with soil depth and negatively associated with soil nutrients, distance to seed trees, and Sesleria autumnalis coverage. Taller Quercus seedlings required more light than both of its strongest competitors and were positively related to humid soils and less rocky sites. Ungulate overbrowsing significantly impeded natural regeneration. The results indicate a satisfactory Quercus density for conversion and the importance of advanced regeneration, which should be gradually, but persistently, released by progressively widening gaps.

scholarly journals One-Year Course of Paediatric Headache in Children and Adolescents Aged 8-15 Years

Cephalalgia ◽  
2008 ◽  
Vol 28 (11) ◽  
pp. 1154-1162 ◽  
Author(s):  
J Gaßmann ◽  
L Morris ◽  
M Heinrich ◽  
B Kröner-Herwig
Keyword(s):  
Children And Adolescents ◽  
Frequency Of Occurrence ◽  
Original Sample ◽  
Status Change ◽  
Headache Diagnosis ◽  
Parent Questionnaires ◽  
Second Year ◽  
German Children ◽  
One Year ◽  
The Individual

The aims of the present study were the assessment of headache (HA) prevalence in German children and adolescents in the second year of a 4-year longitudinal study and the analysis of headache status change from year 1 to year 2. The original sample consisted of 8800 households with a child aged 7-14 years. A total of 4159 households responded in both year 1 and year 2, yielding 3984 valid parent questionnaires. Data regarding various aspects of the child's HA history and general health were gathered via mailed questionnaires from the parents. Of the households returning valid parent questionnaires at survey 2, 48.9± reported their child to have experienced headaches during the previous 6 months (53± at survey 1). Weekly HA was reported for 6.5± of the children, monthly or less frequent HA for 16.5± and 25.9±, respectively. With regard to headache diagnosis, 55.0± of the children and adolescents with HA experienced tension-type HA (TTH) and 11.3± migraine with or without aura (M). For more than half of the children and adolescents with HA (57.0±) the frequency of head pain remained stable over the period of 1 year (i.e. same frequency category in years 1 and 2). Improved and worsened HA status regarding frequency of occurrence was found in 22.3± and 20.7± of the subjects, respectively. Thus, there was no definite trend towards an increase of HA episodes over the course of 1 year regarding the individual child or adolescent. The most stable type of HA was TTH.

SPREADING RATE OF CREEPING-ROOTED ALFALFA

1971 ◽  
Vol 51 (5) ◽  
pp. 367-370
Author(s):  
D. H. HEINRICHS
Keyword(s):  
Stand Density ◽  
Shoot Formation ◽  
Spreading Rate ◽  
Grid Spacing ◽  
The Third ◽  
Second Year ◽  
One Year ◽  
Spreading Line

Creeping-rooted alfalfa plants were studied for rate of spreading when planted in a grid spacing of 1.8 m. One year after planting, only three out of 15 lines displayed 100% creep in all five replicates on the basis of shoot formation. In the second year, all clones of all 15 plant lines had developed above-ground shoots. The range of spread varied from an average of 101 cm for the least spreading line to 176 cm for the strongest spreading line. By the third year they had expanded an additional 27% on the average. The stand density decreased as distance from the center of the plant increased. There were definite differences among creeping-rooted plant lines in rate of spreading ability. In three years most plants had spread horizontally to within each other’s peripheries.

scholarly journals Use of Plastic Shelters for Low-Cost Establishment of Street Trees

1996 ◽  
Vol 20 (2) ◽  
pp. 85-89 ◽  
Author(s):  
R. H. Jones ◽  
A. H. Chappelka ◽  
D. H. West
Keyword(s):  
Tree Species ◽  
Low Cost ◽  
Height Growth ◽  
Diameter Growth ◽  
Industrial Park ◽  
Growth Responses ◽  
Urban Settings ◽  
Planting Methods ◽  
Survival And Growth ◽  
One Year

Abstract One-year-old seedlings of 11 commonly used urban shade tree species were protected with plastic shelters to determine effects on survival and growth. Additional seedlings were planted in the cities of Auburn and Opelika, Alabama, to determine seedling performance in actual urban settings and to estimate incidence of vandalism in five urban settings. Shelters increased survival in four species and height growth in seven. Diameter growth responses were mixed. During the first 13 months after planting, only 3% of the seedlings in the cities were damaged by people. However, 20% of the shelters were vandalized at least once. Vandalism rates for shelters were greatest (37-44%) in neighborhoods of privately and publicly owned homes; intermediate (20%) in recreational parks, and lowest (4-6%) in undeveloped or industrial park areas. Installation of each tree with its shelter cost $2.78 (excluding labor) and required 20-25 minutes of labor. Tree shelters show promise as a low-cost alternative to more expensive planting methods, especially in undeveloped portions of cities. South. J. Appl. For. 20(2):85-89.

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