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Tytuł:
Przepukliny świń - problem weterynaryjno-hodowlany
Hernias in pigs - veterinary and breeding problem
Autorzy:
Woźniak, Jakub
Loba, Weronika
Iskrzak, Paweł
Kujawa, Konstancja
Wojtczak, Janusz
Nowacka-Woszuk, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/22180965.pdf
Data publikacji:
2021
Wydawca:
Krajowa Izba Lekarsko-Weterynaryjna
Tematy:
trzoda chlewna
wady wrodzone
przepukliny
przepuklina pachwinowa
markery genetyczne
przepuklina pępkowa
ekspresja genów
odziedziczalność
umbilical hernia
inquinal hernia
genetic markers
heritability
pig
gene expression
Opis:
The occurrence of hernias in pigs is a serious breeding and veterinary problem. Hernia is a condition in which internal organs (most often intestines), protrude through an opening in the layers of muscle and connective tissue of the abdominal wall. There are two major types of hernia - umbilical and inguinal. This pathology is a serious problem in pig production, leading to economic loss through the cost of surgical intervention, increased mortality rate, and reduced carcass value. The overall incidence of hernias in a normal swine population is low but may increase due to matings to a boar that transmits inguinal hernias. The heritability of this trait oscillates around 0.3. Current knowledge of hernias in pigs is scarce, and mostly based on genome-wide association studies. In this review, we indicate the recent studies concerning the genetic markers association analysis in terms of heritability of hernias in pigs. Moreover, the new approach focused on differently expressed genes in swine hernias etiology is here discussed.
Źródło:
Życie Weterynaryjne; 2021, 96, 06; 408-411
0137-6810
Pojawia się w:
Życie Weterynaryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilność adaptacji potomstwa buka zwyczajnego Fagus sylvatica L. po pięciu latach wzrostu
Adaptation stability of European beech Fagus sylvatica L. after five years of growth
Autorzy:
Jaźwiński, J.
Banach, J.
Skrzyszewska, K.
Strejczek-Jaźwińska, P.
Powiązania:
https://bibliotekanauki.pl/articles/1291347.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
drzewostany bukowe
wylaczone drzewostany nasienne
buk zwyczajny
Fagus sylvatica
testowanie potomstwa
przezywalnosc
wysokosc
odziedziczalnosc
stabilnosc genotypu
progeny testing
selected seed stand
survival
height
heritability
genotype stability
wyłączony drzewostan nasienny
przeżywalność
wysokość
odziedziczalność
stabilność genotypu
Opis:
This study was focused on the evaluation of beech adaptation on test plots in the Góra Śląska and Świebodzin Forest Districts. For this purpose, we examined offspring from seed stands of beech growing in the Regional Directorates of State Forests in Szczecin, Szczecinek, Piła, Zielona Góra and Poznań, which were brought to both test plots. The aim was to determine the adaptive response of the offspring from these stands after five years of growth with respect to the changed environmental conditions compared to the site of origin. Our analysis revealed a relatively low survival rate which was 60.8% and 72.2% in Góra Śląska and Świebodzin respectively. Interestingly, beeches grown on the plot in Góra Śląska were about 40% higher than those grown in Świebodzin (77.6 cm). The trees from both plots were significantly different from each other in terms of the analyzed features and a significant interaction was observed between test plot and site of origin. However, the variability in the adaptive response of the seedlings was large. Using a regression coefficient and the average height value, we determined the seedlings stability, which indicated high quality in offspring from the beech stand in the Łopuchówko Forest District (Buczyna forest range, sub-compartment 95n) and a high degree of adaptation to growth in adverse environmental conditions. Our results also indicate a low survival rate and reduced height of beech offspring from commercial seed stands (local standard).
Źródło:
Leśne Prace Badawcze; 2019, 80, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The current state and efficiency use of in situ and ex situ conservation units for seed harvesting in the central part of Ukraine
Autorzy:
Neyko, Ihor
Yurkiv, Zinoviy
Matusiak, Mykhailo
Kolchanova, Olena
Powiązania:
https://bibliotekanauki.pl/articles/2044109.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
tree breeding
in situ and ex situ conservation
heritability
progeny tests
seed orchards
plus trees
Opis:
Significant increase of biological stability, timber volume, and economic value of forests is impossible without refinement and improvement of the organization, and implementation of forest seed production on a genetic and breeding basis. It is possible to solve this task by creating and efficiently functioning in situ and ex situ facilities. In Ukraine, the basic principles of plus selection are envisaged, which include the selection and testing progeny of plus trees. The total number of progeny tests in Ukraine is 106 plots, in which 1,079 genotypes of plus trees are presented. Taking into account the total number of plus trees in Ukraine (4,560), only 23.7% was subjected to progeny tests. The largest number of progeny tests are represented by Scots pine (Pinus sylvestris L.) – 76 plots and a significantly smaller number of plots for English oak (Quercus robur L.) – 21. The corresponding representation of genotypes is for pine – 520, for oak – 365. The area of tree breeding units in Ukraine is very small (0.4–0.6%) of the total forest area in the region. Despite the available areas, the use of in situ and ex situ objects for harvesting seed in Ukraine is low, around 30%. In the central region of Ukraine, the share of in situ and ex situ objects from the total forest area is 0.1–0.5%. On these sites, from 0 to 54% is harvested, which is insufficient. According to the results of the conducted research, it was established that the areas of permanent forest-seed base (in situ and ex situ units) are insignificant and their use is insufficient. Testing of more than 70% of the selected plus trees is required. An important trend is to study the genotype-environment interaction in connection with trends of global climate change.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 2; 146-155
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resistance risk assessment: realized heritability, cross resistance and resistance stability of acetamiprid in the cotton aphid, Aphis gossypii Glover (Homoptera: Aphididae)
Autorzy:
Mokbel, E.M.S.
Powiązania:
https://bibliotekanauki.pl/articles/65165.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
resistance risk
assessment
heritability
resistance stability
acetamiprid
cotton aphid
Aphis gossypii
Homoptera
Aphididae
Opis:
The cotton aphid, Aphis gossypii is an economically significant insect pest infesting various important crops and vegetables. The neonicotinoid, acetamiprid was recommended against aphids with excellent results. Resistance emergence and environmental pollution makes acetamiprid a favorable alternative to conventional insecticides. The aims of the present work were to predict acetamiprid resistance risk in A. gossypii, investigate cross resistance to other tested insecticides and explore acetamiprid stability in the absence of selection. A field-collected population from Sharqia governorate, Egypt was selected with acetamiprid. After 16 generations of selection, there was a 22.55-fold increase in LC50 and the realized heritability (h2) of resistance was 0.17. Projected rates of resistance indicated that, ifh2 = 0.17 and 50% of the population was killed at each generation, then a tenfold increase in LC50 would be expected in 12.2 generations. If h2 was 0.27 then 7.63 generations would be needed to achieve the same level. In contrast, with h2 of 0.07 it necessitates about 30 generations of selection to reach the same level. Cross resistance studies exhibited that the selected strain showed obvious cross resistance to the other tested neonicotinoid members, moderate cross resistance to alpha-cypermethrin and no cross resistance to pymetrozine. Fortunately, resistance to acetamiprid in the cotton aphid was unstable and resistance reverses the nearby susceptible strain throughout five generations without exposure to acetamiprid. Our results exhibited cotton aphid potential to develop resistance to acetamiprid under continuous selection pressure. The instability of acetamiprid makes A. gossypii amenable to resistance management tactics such as rotation with pymetrozine.
Źródło:
Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection Effects in Rice as Assessed by Genetic Analysis in Segregating Populations
Autorzy:
Ahmadikhah, Asadollah
Powiązania:
https://bibliotekanauki.pl/articles/2199689.pdf
Data publikacji:
2018-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
heritability,
heterosis.rice
selection
Opis:
Estimation of selection effects on changes of a trait is of vital importance for the success of any plantbreeding program, and helps to select the desirable breeding method. Heritability and genetic advance areimportant selection parameters, and selection success is a reflectance of selection response. To estimate selectioneffects on rice genetic parameters, a research was conducted using 4 different generations (two parents:Neda and Sadri, and two segregating populations: BC1F1 and BC1S1). After development of a backcross population,a single plant (BC1#4) was selected based on its desirable performance, particularly in heading date andseven other morphological traits. BC1F1 population compared to mid-parent performance showed advance forheading date, plant height, tiller number, hundred seed weight, weight of filled seeds per panicle and grainyield per plant, while mean performance of BC1F1 population compared to BC1S1 population showed advanceonly for heading date, plant height, tiller number and grain yield. Prevalence of additive genetic effects incontrolling panicle weight, hundred seed weight, weight of filled seeds per panicle, plant height and headingdate was observed, and in contrast prevalence of non-additive effects in controlling grain yield was observed.High general heritability was observed for most traits, while only heading date and plant height showeda considerable specific heritability (60.7% and 67.5%, respectively), and grain yield showed a relatively lowspecific heritability (37.0%). High expected genetic advance (ΔGe) was obtained for tiller number (49.4%),followed by grain yield (43.5%) and plant height (35.5%), while the highest real genetic advance (ΔGe) wasobtained for heading date (-8.5%) and tiller number (5.4%). High selection success was obtained only forheading date (51.8%). Altogether, the obtained results gave promise for selecting progenies with early maturityand semi-dwarfism in early segregating generations, while they suggested preference of heterosis for improvementof grain yield.
Źródło:
Plant Breeding and Seed Science; 2018, 77; 69-77
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetyka zachowania: co wnosi do wiedzy o człowieku?
Autorzy:
Oniszczenko, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/1167863.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Kazimierza Wielkiego w Bydgoszczy
Tematy:
DNA
behavioural genetics
genetic correlation
heritability
methylation
Opis:
The aim of this article is to highlight the achievements of human behavioural genetics. It begins with a brief overview of the field of contemporary human behaviour genetics. Then, the general principles of behavioural genetics, research methods used, the concept of heritability and areas of rapid advancement in the field are identified. While classical twin studies have been a powerful tool to find heritability or the genetic correlation between different human behaviours, new tools are now available to help identify the genes responsible for individual differences. In particular, association studies and DNA methylation studies are crucial to advancing knowledge on the genetic basis of human behaviour as well as on the epigenetic factors that mediate genetic and environmental effects on behaviour. Several results on the heritability of human behaviour, relationships between genetic polymorphisms and behaviour as well as the consequences of DNA methylation are reported in this article.
Źródło:
Polskie Forum Psychologiczne; 2017, XXII, 1; 5-19
1642-1043
Pojawia się w:
Polskie Forum Psychologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability of the agronomic characters in different types of cultivars of winter oilseed rape (Brassica napus L.)
Autorzy:
Bocianowski, Jan
Liersch, Alina
Nowosad, Kamila
Bartkowiak-Broda, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/2148783.pdf
Data publikacji:
2017-06
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
Brassica napus
cultivar
yield and yield component
quality trait
coefficient of variability
heritability
Opis:
Winter oilseed rape cultivars (open-pollinated variety, four composite hybrids, one restored hybrid and the CMS ogu- ra line) were tested during two crop seasons of 2002/2003 and 2003/2004 in field trials at two locations in western Poland. The objectives of the present study were: to determine the variability of yield and the most important phenotypic traits of different types of winter oilseed rape cultivars and to analyse the genotypic variabi- lity of this cultivars by environment interactions. The growing se- asons differed especially in terms of water supply. Seed yield, yield components and some quality traits (oil content and total glucosi- nolate content) were recorded. The tested cultivars showed sub- stantial differences in terms of yield and other investigated traits. Analysis of variance indicated that the main effects of cultivar and locations were significant for all the traits of the study. Very high heritability estimates were obtained for seed yield (0.90–0.98), yield components (length of silique, number of seeds per silique and weight of 1000 seeds), and also for oil and glucosinolate con- tents. The correlation coefficients between the investigated traits displayed strong positive relationships between seed yield and the number of seeds per silique, chlorophyll content, and the length of flowering period. The results confirmed the higher productivity of hybrid cultivars, as well as their better adaptability to variable environmental conditions, especially drought.
Źródło:
Polish Journal of Agronomy; 2017, 29; 3-11
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Correlations and Heritability of the Characters Determining the Seed Yield of the Panicle Inflorescence Forms of Alfalfa (Medicago X Varia T. Martyn)
Autorzy:
Bodzon, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/2199666.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
alfalfa
expected genetic progress
heritability
interdependence
multiple regression
panicle inflorescence
seed yield
Opis:
Phenotypic correlation coefficients and heritability of the characters determining seed yield of panicle inflorescence forms of alfalfa was examined. Seed yield per plant, which was positively correlated with 10 generative and morphological traits, depended upon the number of pods per panicle and the number of seeds per pod. Variability of these characters determined about 60% of the variability of seed yield. Multiple linear regression and phenotypic correlations show that simultaneous selection for increased pod number per panicle and increased seed number per pod and number of branches per panicle resulted in enhanced seed yield potential. The share of the additive genetic effects in the phenotypic variance for number of pods per panicle was low and about 23%, while for number of seeds per pod and seeds per panicle amounted to about 75-77% and 56-57% respectively.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 19-26
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of Genetic Parameters, Heritability and Genetic Advance for Yield Related Traits in Upland Rice (Oryza sativa L. and Oryza glaberrima Steud) Genotypes in Northwestern Ethiopia
Autorzy:
Bitew, Jember Mulugeta
Powiązania:
https://bibliotekanauki.pl/articles/1192678.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Genetic advance
Heritability
upland Rice
Variability
Opis:
This study was carried out to assess the extent of genetic variability for yield and yield related traits and to estimkate heritability and genetic advance in rainfed upland rice genotypes Twenty-two selected upland rice varieties were evaluated in randomized complete block design with three replications during 2014 cropping season. The analysis of variance showed highly significant differences (p < 0.01) for days to flowering, days to maturity, hundred seed weight, plant height and panicle length and differed significantly (p < 0.05) for fertile tiller per plant, filled grains per panicle, unfilled grains per panicle ,biomass yield and grain yield per plot except harvest index, indicating the existence of variability. The higher phenotypic and genotypic variance were obtained from number of filled grains, plant height, days for 50% heading, days for 85% maturity and biomass yield indicating high influence of the environment on the traits. The high level of genotypic and phenotypic coefficients of variation was recorded for traits like biomass yield, grain yield, number of fertile tillers per plant and unfilled grains per panicle. Heritability estimates were moderately high for days to maturity (66.01%), and thousand-grain weight (66.80%). High genetic advance as percent of means was observed for biomass yield per plot, unfilled grains per panicle, grain yield per plot, and fertile tiller per plant. Thousand-grain weight showed moderately high heritability coupled with high genetic advance as percent of mean. Therefore, selection based on this character might be effective for increasing grain yield.
Źródło:
World Scientific News; 2016, 47, 2; 340-350
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variability and associations between grain yield and related traits in Amaranthus cruentus and Amaranthus hypochondriacus grown at two locations
Autorzy:
Oduwaye, O.A.
Porbeni, J.B.O.
Adetiloye, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/1080273.pdf
Data publikacji:
2016
Wydawca:
Instytut Ogrodnictwa
Tematy:
Amaranthus cruentus
Amaranthus hypochondriacus
genetic variability
heritability
path analysis
grain yield
inflorescence length
morphological parameter
Opis:
For plant genetic improvement, it is paramount to determine genetic components for the selection of desirable traits. Eighteen Amaranthus cruentus and 11 Amaranthus hypochondriacus genotypes were evaluated at two locations in Nigeria differing in temperature/precipitation to determine the influence of environment on genetic gain. Genotype × environment was significant for all analysed morphological parameters and for grain yield, 1000 seed weight and no. of days to 50% flowering in A. cruentus. In A. hypochondriacus genotype × environment was significant for plant height, leaf length and width, leaf area, inflorescence length, 1000 seed weight and grain yield. Higher genotypic coefficient of variability, heritability estimates, and genetic advance was observed for the traits at Abeokuta (more wet) than Ibadan (more dry) conditions. Grain yield had positive association with the traits at the two locations except the number of leaves and inflorescence length. Inflorescence length was positively associated with grain yield at Abeokuta and negatively associated at Ibadan. Path analysis indicated simultaneous improvement of grain yield with petiole length and leaf length at Abeokuta but with petiole length and leaf area at Ibadan. In general, the locations had potential for genetic improvement of traits of amaranth grain; therefore, selection criteria for improving grain yield should be considered with respect to environment.
Źródło:
Journal of Horticultural Research; 2016, 24, 2; 91-99
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of genetic components of winter oilseed rape (Brassica napus ssp. oleifera ) regeneration ability under in vitro culture
Autorzy:
Turczynowska, A.
Siatkowski, I.
Broda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/81013.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
winter oilseed rape
Brassica napus var.oleifera
in vitro culture
regeneration ability
general combining ability
specific combining ability
heritability
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combining ability of phenological traits and seed yield in spring rapeseed genotypes
Autorzy:
Rameeh, Valiollah
Powiązania:
https://bibliotekanauki.pl/articles/2199636.pdf
Data publikacji:
2015-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
additive
diallel
GCA
narrow-sense heritability
rapeseed
Opis:
Six parents and their 15 F2 diallel progenies, totally 21 genotypes, were evaluated for genetic parameters of quantitative characteristics. The traits of interest were growing degree days (GDDs) from sowing to the flowering (DDF), to end of flowering (DDE), flowering period (DFP), to maturity (DDM) and seed yield (SY). Significant mean squares of general combining ability (GCA) was exhibited for DDF, DDE, DFP, DDM and seed yield indicating significant differences of GCA effects of parents for these traits. Significant mean squares of specific combining ability (SCA) for all the traits exhibited the importance of non additive genetic effects for the traits. Significant ratio of MS(GCA)/MS(SCA) and high narrow sense heritability estimates for DDF, DDE, DDM indicating the prime importance of additive genetic effects for controlling these traits. DFP was also less heritable than the other phonological traits, so the efficiency of selection for this trait will be low. All of the combinations with significant negative SCA effects for DDM had at least one parent with significant negative GCA effect for this trait. PF7045/91 with significant positive GCA effect of SY, was best combiner for improving SY. Significant positive correlation between DDM and each of two traits including DDF and DDE, indicating these traits can be used as indirect selection criteria for improving DDM.
Źródło:
Plant Breeding and Seed Science; 2015, 71; 47-56
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Line × tester analysis in rapeseed: Identification of superior parents and combinations for seed yield and its components
Autorzy:
Rameeh, Valiollah
Powiązania:
https://bibliotekanauki.pl/articles/763895.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
genetic variation
heritability
line × tester
seed yield
Opis:
This research was carried out to investigate the genetic structure of the 20 F1s rapeseed hybrids established from five female moderate maturity lines and four early maturity male testers, to determine parents showing general combining ability (GCA) and detect crosses showing specific combining ability (SCA). Significant variance of parents and crosses for all the traits indicated the existence of significant genetic variation among the parents and their F1 cross combinations. Significant variance of parents vs. crosses revealed significant average heterosis for all the traits except first pod height and seeds per pod. High narrow-sense heritability estimates for number of branches and pods length, indicate the importance of additive genetic effects for these traits. Hybrid performance was generally better than parental performance for all the traits except number of branches and also the genetic variation of lines × testers for all the traits were more than lines and testers. Most of the crosses with high mean value of pods per plant were yielded from the parental lines with high mean value of this trait. The crosses including L41×Foma2, Zafar×R42 and L22B×R38 with significant positive SCA effects of seed yield had also high mean values (3400, 3311.3 and 2904.2 kg ha-1 , respectively) of this trait.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia; 2015, 70, 2
2083-3563
0066-2232
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena potomstwa buka zwyczajnego (Fagus sylvatica L.) w początkowych latach wzrostu
Evaluating the progeny of European beech (Fagus sylvatica L.) in the early years of growth
Autorzy:
Banach, J.
Skrzyszewska, K.
Smętek, M.
Kubacki, K.
Powiązania:
https://bibliotekanauki.pl/articles/1312258.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
drzewostany nasienne
buk zwyczajny
Fagus sylvatica
drzewa potomne
sadzonki
przezywalnosc
wzrost roslin
drugi rok uprawy
piaty rok uprawy
uprawy lesne
uprawy doswiadczalne
Nadlesnictwo Rymanow
Nadlesnictwo Nawojowa
testing program
survival
tree height
heritability
stability of genotypes
Opis:
This research was carried out on two experimental plots located in the Rymanów and Nawojowa forest districts. In the second and fifth year after planting, at three and six years of age respectively, survival and height of 25 beech progenies of selected stands were measured. Furthermore, we show the effect of beech origin and growth environment (significant ‘provenance × block’ and ‘provenance × test plot’ interactions). Beeches from both experimental plots differed significantly in growth and survival and this difference increased with tree age. The highest provenance heritability was obtained for the tree height after two years of growth in Rymanów. In Nawojowa, the heritability of beech survival reached zero after five years of growth. An evaluation of the stability of beech provenances (genotypes) in terms of survival and height under the habitat conditions of our experimental plots was done using the Finlay and Wilkinson method. The beech provenances of 469–Nawojowa and 452–Lesko (regional standard) were included as a stable basis for reference. A high degree of stability and high average values for the characteristics investigated indicate high progeny quality within these stands.
Źródło:
Leśne Prace Badawcze; 2015, 76, 1; 49-58
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stanowisko parczeliny trójlistkowej Ptelea trifoliata L. ssp. trifoliata w lasach Nadleśnictwa Wyszków
The station of the hop tree (Ptelea trifoliata L. ssp. trifoliata) in forests of the Wyszkow Forest District
Autorzy:
Ciosek, M.
Krechowski, J.
Piórek, K.
Sikorski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1312304.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
lasy
gatunki introdukowane
parczelina trojlistkowa
Ptelea trifoliata
wystepowanie
stanowiska
Nadlesnictwo Wyszkow
testing program
survival
tree height
heritability
stability of genotypes
Opis:
This research was carried out on two experimental plots located in the Rymanów and Nawojowa forest districts. In the second and fifth year after planting, at three and six years of age respectively, survival and height of 25 beech progenies of selected stands were measured. Furthermore, we show the effect of beech origin and growth environment (significant ‘provenance × block’ and ‘provenance × test plot’ interactions). Beeches from both experimental plots differed significantly in growth and survival and this difference increased with tree age. The highest provenance heritability was obtained for the tree height after two years of growth in Rymanów. In Nawojowa, the heritability of beech survival reached zero after five years of growth. An evaluation of the stability of beech provenances (genotypes) in terms of survival and height under the habitat conditions of our experimental plots was done using the Finlay and Wilkinson method. The beech provenances of 469–Nawojowa and 452–Lesko (regional standard) were included as a stable basis for reference. A high degree of stability and high average values for the characteristics investigated indicate highprogeny quality within these stands.
Źródło:
Leśne Prace Badawcze; 2015, 76, 1; 49-58
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 56

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