Wszystkie pola: diallel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Diallel analysis of agronomic traits in winter rye.
Autorzy:: Bujak, Henryk
Powiązania:: https://bibliotekanauki.pl/articles/2198881.pdf
Data publikacji:: 2003-06-22
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: diallel cross
general combining ability
hybrids analysis
specific combining ability
syntetic varieties
Opis:: An analysis of combining ability of rye, based on F1 generation hybrids, was performed in order to select lines of high effects of general combining ability which are useful for creation of population and synthetic varieties as well as hybrids giving high effects of specific combining ability. The main aim of the present paper was to recognize the actions of genes responsible for quantitative traits and combining ability of rye inbred lines on the basis of F1 and F2 hybrids analysis.The study material included 56 F1 generation hybrids obtained though diallel-cross with 8 parent lines as well as 56 F2 generation hybrids crossed with 8 parent lines.A genetic analysis of generation F2 yields results and GCA estimates which substantially correspond with those obtained for generation F1. The closest results were obtained for plant height, ear length and 1000-grain weight. For cultivation purposes, an analysis of generation F2 will be reliable and the selection based on it successful. Most of the studied lines were found to essentially influence the effects of general combining ability. The most recommendable is the line SMH-49 whose progeny was characterized both by shortened leaves and increased 1000-grain weight and the weight of grains per ear.
Źródło:: Plant Breeding and Seed Science; 2003, 47; 17-28
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Inheritance of water use efficiency in diallel hybrids of spring barley under varied nutrition and soil moisture
Autorzy:: Gorny, A G
Powiązania:: https://bibliotekanauki.pl/articles/2043864.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: inheritance
heritance
water
stress tolerance
climate condition
hybrid
barley
nutrition
spring barley
drought
Hordeum vulgare
low nutrition
diallel hybrid
soil moisture
Źródło:: Journal of Applied Genetics; 1999, 40, 1; 15-28
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

Tytuł:: Heterosis for yield and yield components in diallel crosses of Brassica napus L.
Heterozja dla plonu i jego składników w krzyżowaniu diallelicznym rzepaku (Brassica napus L.)
Autorzy:: Farhatullah, F.
Khan, N.A.
Abbas, S.J.
Powiązania:: https://bibliotekanauki.pl/articles/832735.pdf
Data publikacji:: 2006
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: heterosis
yield
yield component
diallel cross
Brassica napus
hybrid
F1 hybrid
rapeseed
Pakistan
breeding programme
plant breeding
Źródło:: Rośliny Oleiste - Oilseed Crops; 2006, 27, 1
1233-8273
Pojawia się w:: Rośliny Oleiste - Oilseed Crops
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Combining Abiliiy and Facidr Analysis in F2 Diallel Crosses of Rapeseed Varieties
Autorzy:: Rameeh, v.
Powiązania:: https://bibliotekanauki.pl/articles/2199587.pdf
Data publikacji:: 2010-12-01
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: additive
degree of dominance
factor loading
SCA
Opis:: Fifteen F 2 progenies derived from a 6x6 half diallel crosses along with their parents of rapeseed (Brassica MpUS L.) varietie5 were evaluated for pods per main axis, pods per plant, length of pod, seeds per pod, 1000- seed weight , grain yield and oil content The Analysis of variance based on Griffing's method two, with mixed-B model on F 2 progenies and their parents revealed significant mean squares for general combining ability (GCA), specific combining ability (SCA) indicating that both additive and non-additive genetic effects were involved in controlling these traits. High narrow-sense heritability estimates and degree of dominance less than one were observed for length of pod and 1000-seed weight indicated the prime importance of additive genetic effects for controlling these two traits. Narrow-sense heritability estimates for pods per main axis, pods per plant, seeds per pod, grain yield and oil content were estimated 0.22, 0.14, 0.30, 0.15 and 0.08, respectively concluded that the importance role of non-additive genetic effects for controlling these traits. Among yield components, pods per main axis and pods per plant had significant positive correlation with grain yield (0.54* and 0.60**), so any changing of these traits would have significant effects on grain yield. Based on the results of factor analysis on GCA effects revealed that pods per main axis, pods per plant and grain yield had high coefficients of factor loading in the factor one, but on SCA effects pods per main axis, pods per plant and 1000- seed weight had high coefficients of factor loading and the same direction of variation.
Źródło:: Plant Breeding and Seed Science; 2010, 62; 73-84
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Combining ability and heterosis for fiber quality traits in cotton.
Autorzy:: Bolek, Yuksel
Bardak, Adem
Cokkızgın, Hatice
Powiązania:: https://bibliotekanauki.pl/articles/2199585.pdf
Data publikacji:: 2021-02-23
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: cotton
diallel analysis
heterosis
heterobeltiosis
general and specific combining ability
Opis:: Combining ability analysis and heterosis for cotton fiber quality traits were studied in a set of diallel crosses involving eight cotton (Gossypium sp.) genotypes. Randomized complete block design was used to test 56 F1 and 8 parents for fiber quality traits; length (Len), strength (Str), micronaire (Mic), uniformity (Unf), elongation (Elg), spinning consistency index (Sci) and short fiber index (Sfi). Analysis revealed significant general combining ability (GCA) and specific combining ability (SCA) effects for all the traits and additive gene effects were important in the inheritance of the traits. Giza-45 had the highest GCA effects for Len, Sci, Unf and Elg while Is-4 had the highest Str value. Mic and Sfi values were lowest for Askabat-100 and Giza-45, respectively. The cross Cukurova-1518 × 108-F and Nazilli-84S × Askabat-100 had the lowest SCA effects for Mic and Sfi, respectively. The highest values for Len (Askabat-100 × 108-F), for Str (Acala Prema × 108-F), for Sci (Is-4 × Giza-45), for Unf (Stoneville-453 × Askabat-100) and for Elg (108-F × Is-4) were also obtained. Hybridizations among Askabat-100 × Nazilli-84S, Is-4 × Giza-45, Askabat-100 × Stoneville-453, Askabat-100 × Giza-45, Is-4 × 108F, Giza-45 × 108F, Giza-45 × Acala Prema, Nazilli-84S × Giza-45, Is-4 × Nazilli-84S and Acala Prema × Askabat-100 crosses yielded the best heterosis and heterobeltiosis values. Aforementioned parents and crosses could be utilized for further selection of high fiber quality and applying 3-way crosses or modified backcross or recurrent selection to genotypes having good combining ability would improve fiber quality...
Źródło:: Plant Breeding and Seed Science; 2010, 62; 3-16
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Genetic analysis of plant height, yield components and seed yield in rapeseed (Brassica napus L.) cultivars
Autorzy:: Rameeh, Valiollah
Powiązania:: https://bibliotekanauki.pl/articles/2199722.pdf
Data publikacji:: 2012-12-20
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: additive
diallel
heterosis
heritability
regression lines
seed yield
Opis:: Half F2 diallel crosses of spring rapeseed (Brassica napus L.) varieties along with their parents were evalu- ated for plant height, first siliqua height, siliquae on main axis, siliquae per plant, 1000-seed weight and seed yield. The Analysis of variance based on Cockerham’s method revealed significant mean squares of general combining ability (GCA), specific combining ability (SCA) for all the traits indicating that both additive and non-additive genetic effects were involved in controlling these traits. Parent vs crosses mean square which is indicating average heterosis was significant for all the traits. In Hayman’s method the regression lines esti- mated for all the traits except plant height cut the Wr axis below the origin in the negative zone, suggesting the overdominance type of gene action for these traits except plant height. Based on the array points on the regression lines, 19H had maximum dominant genes for siliquae on main axis, siliquae per plant 1000-seed weight and seed yield, being closest to the origin, while Option500 possessed recessive genes for first siliqua height, siliquae per plant and 1000-seed weight, as evidenced by its distant position from the origin. Due to low narrow-sense heritability estimates for most of the traits, selection for improving these traits should be carried out in delayed segregating generations.
Źródło:: Plant Breeding and Seed Science; 2012, 67; 61-74
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Zastosowanie metod Haymana-Jinksa do oceny zmienności genetycznej mieszańców z krzyżowań diallelicznych
Application of statistical analysis Hayman-Jinks for estimation of variability of diallel crosings
Ispol'zovanie metodov Gejjmana-Dzhinksa dlja ocenki geneticheskojj izmenchivosti gibridov poluchennykh v diallel'nom skreshhivanii
Autorzy:: Parlinska, M.
Madry, W.
Powiązania:: https://bibliotekanauki.pl/articles/798445.pdf
Data publikacji:: 1989
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: metoda Haymana-Jinksa
zmiennosc genetyczna
mieszance
krzyzowanie dialleliczne
analiza statystyczna
struktura genetyczna
geny
rodzice
potomstwo
Opis:: The analysis of genetics structure of n parent lines presented in this paper, is based on the Hayman-Jinks' and Mather's model, in which it was assumed that there was no episthasis. The analysis alows to determine the effects of additivity and dominance and provides the information about the distribution of genes in parental forms. The final section is an example for 6 lines of winter wheat.
В статье представлен аналитический анализ н родительских линий базирующий на ыодели Геймана-Джинкса и Матера, в котором принято отсутствие эпистаза. Этот анализ позволяет о- пределить аддитивные эффекты и доминантность и информирует о расположении генов в родительских формах. В последней части дается пример для шести линий озимой пшеницы.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1989, 382
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Combining ability analysis of some of grain yield stress indices in rapeseed (Brassica napus L.) varieties
Autorzy:: Rameeh, Valiollah
Powiązania:: https://bibliotekanauki.pl/articles/2199638.pdf
Data publikacji:: 2012-04-19
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: diallel
genetic parameters
heterosis
narrow-sense heritability and rapeseed
Opis:: Although most of investigations showed that nitrogen fertilizers gave substantial rapeseed yield increases even in diverse and contradicting conditions but in a few studies were focused on genetic parameters of nitrogen stress effects. Combining ability of some of important grain yield stress indices based on application and non application of nitrogen (N+ and N0) was studied using half diallel of six spring rapeseed varieties and their 15 F2 progenies. Significant mean squares of general and specific combining abilities (GCA and SCA) were observed for potential yield(Yp), Stress yield(Ys), mean productivity (MP), geometric mean productivity (GMP), tolerance index (TOL), stress tolerance index (STI) and stress susceptibility index (SSI), indicating importance of additive and non-additive genetic effects for them. Non significant ratio of GCA to SCA mean square and low narrow-sense heritability estimates were detected for all the indices, indicating the prime importance of non-additive genetic effects. Significant positive GCA effect of Yp, Ys, MP, GMP and STI for PF7045/91 and significant negative GCA effects of them for Option500, indicated the same direction of GCA effects of these indices and GCA effects of Yp and Ys. On compare to SCA effects, most of crosses had significant high parent heterosis for Yp, Ys and and all the stress indices, therefore selection the better combinations based on heterosis will be more effective than SCA effect.
Źródło:: Plant Breeding and Seed Science; 2012, 65; 39-50
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Gene action and combing ability of some agronomic traits in corn using diallel analysis
Autorzy:: Haddadi, Mohammad Hossein
Esmaeilov, Maqsadollah
Choukan, Rajab
Rameeh, Valiollah
Powiązania:: https://bibliotekanauki.pl/articles/2199579.pdf
Data publikacji:: 2014-06-19
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: combined analysis
correlation
dominance
heritability
maize
Opis:: Combining ability estimates are important genetic attributes to maize breeders in anticipating improvement via hybridization and selection. To determine the combining ability for yield and yield associated traits, 8 diverse corn inbred lines were used in a half diallel mating design. Twenty eight F1 progenies along with their parents were planted in randomized complete block design with four replications in two locations during two years. Combined analysis of variance showed significant mean squares of general combining ability (GCA) and specific combing ability (SCA) for Days to silking emergence (DS), plant height (PH), 1000-kernel weight (KW), number of kernels in ear row (KR), number of rows in ear( NR ) , ear diameter (ED), cob diameter (CD), kernel yield (KY) indicating that the importance of both additive and non additive genetic effects for these traits. However, high narrow-sense heritability estimates, low degree of dominance and the ratio of estimates of GCA to SCA effects for DS , NR and CD indicated that additive genetic effect was more important for these traits. Most of the crosses with significant SCA effects for KY had at least one parent with significant GCA effects for the same traits. Significant positive correlations were detected between KY and other yield components including KW, KR, NR and ED, therefore these traits can be used as indirect selection criteria for KY improvement. The crosses MO17 × Line8, MO17 × Line 10 and MO17 × Line 12, Line 8 × Line 10 and Line 8 × Line 21 with high values of KY were considered as good cross combinations for improving the trait.
Źródło:: Plant Breeding and Seed Science; 2014, 69; 35-46
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Relationships between hybrid performance and genetic distance revealed by morphological and AFLP marker in cucumber
Autorzy:: Olfati, J. A.
Samizadeh, H.
Peyvast, Gh.
Rabiei, B.
Khodaparast, S. A.
Powiązania:: https://bibliotekanauki.pl/articles/2199652.pdf
Data publikacji:: 2012-04-19
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: cluster analysis
diallel
heterosis
orthogonal comparison
similarity matrix
Opis:: This study investigated the relationship of morphological and molecular genetic distance with hybrid performance and heterosis in cucumber in an attempt to make use of genetic distance in predicting hybrid performance. The results of this study showed that GD, in general, correlated poorly with heterosis and SCA. Results showed that the mean values of the hybrids were significantly larger or smaller for many traits when compared with the mean of parental lines, indicating that heterosis was present for these traits. In next step we compare inter group hybrids versus intra group hybrids. This test showed that intra group hybridization although increased the yield and yield component but decrease some fruit quality such as fruit color and shape.
Źródło:: Plant Breeding and Seed Science; 2012, 65; 87-98
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Analiza dialleliczna cech ilościowych mieszańców pszenicy jarej
Diallel analysis of spring wheat hybrid traits
Diallelnyjj analiz priznakov gibridov jarovojj pshenicy
Autorzy:: Drozd, D.
Jedynski, S.
Powiązania:: https://bibliotekanauki.pl/articles/796759.pdf
Data publikacji:: 1989
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: pszenica jara
mieszance
analiza dialleliczna
cechy ilosciowe
dziedziczenie
geny
regresja
klosy
Opis:: Five lines of spring «beat were crossed in a complete diallel design and then their analysis was performed after Hayman and Jinks. The lines were derived from the following spring wheat varieties: Azteca and Saric /Mexico/, Cesar /France/, Sharbati Sonera /India/ and 19395-USA /USA/. Plant height, number of ears per plant, number of grains per ear, 1000 grain weight and weight of grains per plant were analyzed. The plant height and the number of productive ears were determined by overdominance, whereas a high share of genetic additive variance was found in case of inheritance of the number of grains per ear and the 1000 grain weight.
Пять линии яровой пшеницы скрещивали в полной диаллельной си- стеке, а затем проводила анализ по методу Гейкана и Джинкса. Линии были выведены из следующих сортов яровой пшеницы: Азтека и Сарик /Мексик/, Цезар /франция/, Шарбати Сонора /Индия/ и 19 395-США /США/. Анализировали: высоту растений, число колосьев на растении, число зерен из колоса, вес 1000 зерен и вес зерен из растения. Высота растения и число продуктивных колосьев были обусловлены сверхдомивантностьв, тогда как высокие участие аддитивной генетической варианции было установлено в случае наследования числа зерен с колоса и веса 1000 зерен.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1989, 382
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Combining ability and heterosis for some quantitative traits in experimental maize hybrids
Autorzy:: Azad, Mohammad Abul Kalam
Biswas, Bhabendra Kumar
Alam, Nazmul
Alam, Sheikh Shamimul
Powiązania:: https://bibliotekanauki.pl/articles/2199613.pdf
Data publikacji:: 2014-12-18
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: half diallel crosses
heterosis
general combining ability
specific combining ability
Zea mays
Opis:: In rabi season 2012, six diversed maize inbred lines were crossed in all possible combinations without reciprocals by using a half diallel mating design to obtain 15 single cross. Inbred parents and their F1 single crosses with a check were evaluated in rabi season 2013 to evaluate the role of general and specific combin-ing ability and heterosis for some quantitative traits. Significant general combining ability variances was observed only for cob height and specific combining ability variances were observed for plant height, cob height, cob length, cob girth, number of kernels per cob, cob weight and hundred grain weight. The GCA/SCA ratio was less than unity for all studied traits except shelling percentage; this means that these traits are pre-dominantly controlled by non-additive gene action. Based on GCA estimates, it could be concluded that the best combiners were ML01, ML05 and ML29 inbred lines for most of the studied traits. This result indi-cated that these inbred lines could be considered as good combiners for improving these traits. Significant positive SCA effects were found for all studied traits except number of kernels per row and shelling percent-age. Based on SCA effects, it could be concluded that the crosses ML01×ML02, ML02×ML05, ML02×ML29 and ML05×ML15 could be exploited by the maize breeders to increase maize yield. Three F1 hybrids such as ML02×ML15, ML02×ML29 and ML05×ML15 proved to be the outstanding hybrids to immediate further steps for commercial cultivation. In a conclusive decision the F1 hybrid, ML02×ML29 was the best combina-tion as evaluated through combining ability and standard heterosis.
Źródło:: Plant Breeding and Seed Science; 2014, 70; 41-54
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Zdolnosc kombinacyjna i heterozja zawartosci glukozynolanow w nasionach rzepaku ozimego z pokolen F1 i F2, oznaczone metoda krzyzowan diallelicznych pomiedzy liniami podwojonych haploidow
Combining ability and heterosis in glucosinolate content in seeds of winter rape [Brassica napus L.] estimated with diallel crossings between doubled haploid lines
Autorzy:: Pietka, T
Krotka, K.
Krzymanski, J.
Powiązania:: https://bibliotekanauki.pl/articles/833574.pdf
Data publikacji:: 2005
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: hodowla roslin
rzepak ozimy
Brassica napus
nasiona
glukonapina
progoitryna
4-hydroksybrassicyna
heterozja
krzyzowanie dialleliczne
glukozynolany
haploidy podwojone
zdolnosc kombinacyjna
plant breeding
winter rape
seed
gluconapin
progoitrin
4-hydroxybrassicin
heterosis
diallel cross
glucosinolate
double haploid
combining ability
Źródło:: Rośliny Oleiste - Oilseed Crops; 2005, 26, 2; 311-324
1233-8273
Pojawia się w:: Rośliny Oleiste - Oilseed Crops
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Analiza uwarunkowań genetycznych cech struktury plonu u mieszańców pokolenia F₁ i F₂ otrzymanych z krzyżowań diallelicznych pszenicy ozimej
Analysis of genetic determination of yield components traits in F1 and F2 generations of winter wheat diallel crosses
Autorzy:: Nawracała, Jerzy
Łuczkiewicz, Tadeusz
Dyba, Stanisław
Powiązania:: https://bibliotekanauki.pl/articles/41521648.pdf
Data publikacji:: 2008
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: analiza dialleliczna
komponenty genetyczne
odziedziczalność
pszenica ozima
diallel analysis
genetic components
heritability
winter wheat
Opis:: Do krzyżowania diallelicznego (model II Griffinga) wybrano jedenaście zróżnicowanych pod względem cech agronomicznych i jakościowych odmian pszenicy ozimej. Dwa doświadczenia (bloki losowane, trzy powtórzenia): jedno z pokoleniem F₁, drugie z pokoleniem F₂ (55 mieszańców i odmiany rodzicielskie w każdym) przeprowadzono w RGD w Dłoni w 2004 r. Oceniono odziedziczalność oraz komponenty genetyczne dla cech morfologicznych i cech komponentów plonu. Addytywne działanie genów stwierdzono w determinacji wszystkich badanych cech w pokoleniu F₁ i F₂. Na wysokość roślin, liczbę kłosów w obydwu pokoleniach i na liczbę kłosków w kłosie oraz masę ziaren z kłosa w pokoleniu F₂ istotny wpływ miały efekty dominacji. Nieaddytywny komponent (H1) był większy niż addytywny (D) dla liczby kłosów w obydwu pokoleniach. Pomiędzy pokoleniami stwierdzono różnice w odziedziczalności w szerokim sensie dla liczby ziaren z kłosa, a w wąskim sensie dla masy ziaren z kłosa. W ocenie addytywnego działania genów, nieaddytywnych efektów i dominacji, podobieństwo pomiędzy pokoleniami było większe niż podobieństwo w ocenie odziedziczalności w szerokim i wąskim sensie.
Eleven winter wheat varieties, differing in agronomic and quality traits, were chosen for diallel crosses (Griffing’s model II). Two experiments: with F₁ and F₂ generations (55 hybrids and their parents for each) were carried out at the ARS in Dłoń in 2004. Both experiments were performed in randomised block design with three replications. Heritability and genetic components for morpholohgical and yield components traits were calculated. The additive genes action was significant in determination of all examined traits in F₁ and F₂ generations. Dominance had a significant effect on plant height, number of spikes per plant in both generations, and on number of spikelets per spike and weight of grain per spike in F₂ generation. Nonadditive component (H1) was higher than additive (D) for number of spikes in both generations. Differences were found between generations for heritability in broad sense for number of grains per spike, and for heritability in narrow sense for weight of grains per spike. Similarity between generations F₁ and F₂ in evaluation of additive, nonadditive genetic components and dominance was higher than evaluation of heritability in broad and narrow sense.
Źródło:: Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2008, 250; 59-65
0373-7837
2657-8913
Pojawia się w:: Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:: Biblioteka Nauki

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