scholarly journals Genetic parameters for grain angle in 28-year-old Norway spruce progeny trials and their parent seed orchard

2008 ◽  
Vol 65 (3) ◽  
pp. 301 ◽  
Author(s):  
Henrik R. Hallingbäck ◽  
Gunnar Jansson ◽  
Björn Hannrup
Keyword(s):  
Norway Spruce ◽  
Genetic Parameters ◽  
Seed Orchard ◽  
Grain Angle

scholarly journals Genetic parameters for spiral-grain angle in two 19-year-old clonal Norway spruce trials

2002 ◽  
Vol 59 (5-6) ◽  
pp. 551-556 ◽  
Author(s):  
Bj�rn Hannrup ◽  
Michael Grabner ◽  
Bo Karlsson ◽  
Ulrich M�ller ◽  
Sabine Rosner ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Genetic Parameters ◽  
Spiral Grain ◽  
Grain Angle ◽  
Spiral Grain Angle

Field performance and early test results of offspring from two Norway spruce seed orchards containing clones transferred to warmer climates

2007 ◽  
Vol 37 (3) ◽  
pp. 515-522 ◽  
Author(s):  
Tore Skrøppa ◽  
Ketil Kohmann ◽  
Øystein Johnsen ◽  
Arne Steffenrem ◽  
Øyvind M. Edvardsen
Keyword(s):  
Norway Spruce ◽  
Field Performance ◽  
Seed Orchard ◽  
Field Trials ◽  
Climatic Conditions ◽  
Test Results ◽  
Seed Orchards ◽  
Low Altitude ◽  
Natural Stands ◽  
Seed Crops

We present results from early tests and field trials of offspring from two Norway spruce ( Picea abies (L.) Karst.) seed orchards containing clones that have been transferred from high altitudes to sea level and from northern to southern latitudes. Seedlings from seeds produced in the low-altitude seed orchard developed frost hardiness later at the end of the growth season, flushed later in field trials, and grew taller than seedlings from seeds produced in natural stands. They had the lowest mortality rate and the lowest frequency of injuries in the field trials. Similar results were observed in seedlings from seeds produced in the southern seed orchard. We found no adverse effects of the changed growth rhythm. Seedlings from two seed crops in the southern orchard, produced in years with a warm and a cold summer, had different annual growth rhythms. The results are explained mainly by the effects of the climatic conditions during the reproductive phase. Seed crops from different years in the same seed orchard may produce seedlings that perform as if they were from different provenances. It is argued that the effects of the climatic conditions during seed production must contribute to the variation among provenances of Norway spruce.

scholarly journals Genetics and expected selection gain for growth traits in Eugenia dysenterica DC. populations

Bragantia ◽  
2009 ◽  
Vol 68 (3) ◽  
pp. 629-637 ◽  
Author(s):  
Ananda Virginia de Aguiar ◽  
Roland Vencovsky ◽  
Lázaro José Chaves ◽  
Mara Fernandes Moura ◽  
Lizz Kezzy de Morais
Keyword(s):  
Genetic Variation ◽  
Genetic Parameters ◽  
Growth Traits ◽  
Block Design ◽  
Genetic Material ◽  
Germplasm Collection ◽  
Seed Orchard ◽  
Seedling Seed Orchard ◽  
Randomized Block Design ◽  
Eugenia Dysenterica

The objective of this study was to estimate genetic parameters of quantitative traits in a living germplasm collection of Eugenia dysenterica. The genetic material consisted of 110 progenies derived from 10 natural Eugenia dysenterica subpopulations sampled in the southeastern region of the state of Goiás. The experiment was established in a complete randomized block design, with 110 treatments, four replications and one tree per plot. The study variables were total height, stem diameter and respective growth rates. After the analysis of variance some genetic parameters were estimated. The levels of genetic variation in the collection were high and the highest proportion was found within subpopulations. Highest coefficients of heritability and genetic variation were observed in subpopulations from the counties Catalão, Três Ranchos, Cristalina and Senador Canedo. Considering the promising expected progress for growth traits, this collection can be converted into an unrogued seedling seed orchard, aiming the production of improved seed.

scholarly journals Comparison of Genetic Diversity in Naturally Regenerated Norway Spruce Stands and Seed Orchard Progeny Trials

Forests ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 926 ◽  
Author(s):  
Dainis Ruņģis ◽  
Solveiga Luguza ◽  
Endijs Bāders ◽  
Vilnis Šķipars ◽  
Āris Jansons
Keyword(s):  
Genetic Diversity ◽  
Norway Spruce ◽  
Gene Diversity ◽  
Seed Orchard ◽  
Seed Orchards ◽  
Spruce Stands ◽  
Ssr Loci ◽  
Naturally Regenerated Stands ◽  
Average Gene ◽  
Environmental Events

Forest ecosystems in Europe are expected to experience changes in temperature and water regimes associated with increased risks of extreme environmental events and disasters. Genetic diversity and relatedness has been linked to resilience of forest stands and landscapes. Genetic diversity indicators were compared between a Norway spruce population naturally regenerated after extensive windthrow and Norway spruce progeny populations derived from two seed orchards. In addition, genetic diversity in an undisturbed stand in a long established national park and a spruce genetic resource stand were analyzed. Populations were genotyped at 11 simple sequence repeat (SSR) loci. Average genetic diversity indicators were similar across populations. However, the total number of alleles, average number of alleles over all loci, effective number of alleles, average gene diversity, and average allelic richness were highest in the naturally regenerated population and lowest in one of the seed orchard progeny populations. The genetic diversity in progeny from seed orchards used for stand renewal is comparable to the genetic diversity in naturally regenerated stands. However, fluctuations in seed production between years can have a large impact on genetic diversity in seed orchard progeny. The use of improved Norway spruce germplasm deployed via clonal seed orchards for forest renewal can maintain similar levels of genetic diversity compared to naturally regenerated stands, while also increasing production and timber quality.

Decline and physiological response to foliar-deposited salt in Norway spruce genotypes: a comparative analysis

1998 ◽  
Vol 28 (12) ◽  
pp. 1879-1889 ◽  
Author(s):  
Jon Kehlet Hansen ◽  
Henrik Saxe ◽  
Anders Ræbild ◽  
Christian Nørgård Neilsen ◽  
Jens Peter Simonsen ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Norway Spruce ◽  
Water Use ◽  
Stress Responses ◽  
Seed Orchard ◽  
Narrow Sense Heritability ◽  
Salt Deposition ◽  
Progeny Trial ◽  
Spruce Decline ◽  
Use Efficiency

Severe spruce decline in Denmark at the end of the 1980s led to investigations of the physiology and genetics of the decline and the importance of sea salt deposition. Narrow-sense heritability of health in a progeny trial with 8-year-old Norway spruce families (Picea abies (L.) Karst.) was 0.58. Broad-sense heritability in a seed orchard with clones from ortets of southeastern European origin was 0.53. The health of the ortets correlated with family and clone health. Health of families and clones were not correlated. The health of three spruce provenances in the progeny trial varied from 6.3 to 7.7 on a 0-9 scale. Salt stress responses of 12 two-year-old open-ollinated families from the above clones were investigated after dipping branches into different salt solutions. Photosynthesis and transpiration decreased with increasing salt deposition, respiration increased, and water use efficiency increased initially and decreased later. Correlations between field health and physiological salt responses suggested that airborne salt predisposes to spruce decline rather than triggers it. Health of Norway spruce is unlikely to be improved by salt-resistance selection in the laboratory but may be improved by low transpiration and high water use efficiency selection. Visible injuries were primarily determined by the amount of salt taken up.

scholarly journals An assessment of family variation of Norway spruce (Picea abies (L.) Karst.) of the Kolonowskie provenance from a reconstitution seed orchard

2004 ◽  
Vol 53 (1-6) ◽  
pp. 249-253 ◽  
Author(s):  
H. Fober
Keyword(s):  
Norway Spruce ◽  
Growth Traits ◽  
Growing Season ◽  
Seed Orchard ◽  
Bud Break ◽  
Substantial Variation ◽  
The Family ◽  
Family Level ◽  
Sib Families ◽  
Very High

Abstract Variation in spring bud break dates and growth traits was studied among 183 half-sib families developed from Norway spruce grafts on a reconstitution seed orchard. The grafts were derived from maternal trees (ortets), which were selected on the IUFRO 1964/68 experimental plots in 11 countries. All maternal trees belong to the same provenance Kolonowskie, which should be reconstituted as a population by a seed orchard because its exact location was not documented, and thus seed of this provenance was not available. Analyses of variance of the data collected in the first six years of the experiment revealed a very high variation between families in general and between families within clones. Differences between the clones were observed in some traits (plant height after the first growing season, spring flushing in the sixth growing season), but differences between families within clones proved to be more significant. A positive correlation was found between bud break dates of grafts in the seed orchard and their generative progeny on the family experimental plot. The correlation was significant both at the family (graft) level (p = 0.01) and at the clonal level (p = 0.05). The substantial variation between open pollinated families from the reconstitution seed orchard cannot entirely be interpreted but it indicates a high selective potential of Norway spruce at the family level.

scholarly journals Väetamise mõju hariliku kuuse (Picea abies (L.) Karst) poogenditele Pauska seemlas / The effect of fertilization on Norway spruce (Picea abies (L.) Karst) grafts: a case study in Pauska seed orchard

2011 ◽  
Vol 54 (1) ◽  
pp. 71-89
Author(s):  
Malle Kurm ◽  
Jürgen Aosaar ◽  
Andres Kiviste
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Morphological Characteristics ◽  
Nutrient Content ◽  
Seed Orchard ◽  
Nitrogen Fertilizers ◽  
R Software ◽  
P Content ◽  
The Impact ◽  
Research Period

Abstract Altogether 197 grafts were studied in Pauska seed orchard in South-Estonia to find out the effect of the fertilization on Norway spruce grafts. The fertilization trials were carried out in May 1988 and 2006. The grafts of 4 different clones with 5 different fertilization treatments (N, P, K, NPK, control) were under study. The effect of three factors (fertilization, clone and year) on different characteristics of spruce grafts was studied. The linear methods with R software were used to find out relationships between variables. In addition to the morphological features and the content of nutrients in needles, the quantities and qualities of the mean cone and the weight of 1000 seeds were measured. Furthermore, the variation of quantities of needles (density, weight, length) and the content of nutrients in needles between years 1988 and 2007 were compared, using the linear methods with R software package. The morphological characteristics and nutrient content of needles, the mass of cones and seeds have depended the most on a calendar year. During the last research period (2003−2007), the needles of grafts under study were longer, lighter and with lower density compared to earlier research period (1988-1993). The effect of a clone was also essential. Needles of younger grafts were longer, heavier and set sparser than needles of older grafts. The needle nutrient content of younger grafts was also higher compared to the older ones. The effect of fertilizers on the grafts was dependent on the period of time. Nitrogen fertilizers increased the N-content in their needles during the first four years and also after repetitive fertilization. Phosphate fertilizers increased the P-content in their needles starting from the third year after their fertilization. The impact of potassium fertilizers on the K-content of their needles appeared 2−4 years after their fertilization. Combined fertilizers increased the N- and P-content in the needles to some extent, whereas it decreased their Ca- and Mg-content.

scholarly journals Seed Production and Its Quality in Norway Spruce (Picea abies (L.) H. Karst) Seed Orchard Originated from the Białowieża Primeval Forest

2020 ◽  
Vol 3 (1) ◽  
pp. 33
Author(s):  
Włodzimierz Buraczyk ◽  
Agata Konecka ◽  
Jerzy Sacharczuk ◽  
Agnieszka Ledochowicz
Keyword(s):  
Norway Spruce ◽  
Seed Production ◽  
Seed Quality ◽  
Negative Impact ◽  
Genetic Material ◽  
Seed Orchard ◽  
Ex Situ ◽  
Primeval Forest ◽  
Genetic Pool ◽  
Białowieża Primeval Forest

Climate changes, taking place in Poland, have a very negative impact on populations of many tree species. An example of a highly endangered and, at the same time, very valuable stock is the population of Norway spruce from the Białowieża Primeval Forest. One of the protection methods of a perishing population is to preserve its genetic pool in the form of seed orchards (ex situ method). The genetic material of spruce mother trees from the Białowieża Primeval Forest has been preserved in a seed orchard with an area of 9.74 ha, established in 1996 in the Bielsk Forest District (approximately 35 km west of the Białowieża Primeval Forest). In December 2017, cones from all growing grafted trees were collected on a sample plot of 50 clones. An extensive analysis of the health of cones, seed yield from cones, and the parameters of cones and seeds was carried out, and the relationship between seed quality and position in the cone was determined. The number of cones on the analyzed trees ranged from 29 to 1766, with the average equal to 405 cones per clone. The greatest threat limiting seed production were insects that damaged seeds in cones. No dieback of grafted trees, due to the activity of the European spruce bark beetle, was detected. The share of undamaged and lightly damaged cones amounted to about 88%. However, the average share of undamaged seeds was less than 50%. Our surveys showed that the approximately 25-year-old plantation is able to give satisfying economic result and assure the preservation of the genetic pool of Norway spruce from the population of the Białowieża Forest.

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