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GENERAL COMBINING ABILITY [5 records]

Record 1 2012-10-01

English

Subject field(s)
  • Genetics
  • Plant Breeding
CONT

General combining ability is the average performance of a strain in a series of crosses. Specific combining ability is the deviation from performance predicted on the basis of general combining ability.

CONT

Specific combining ability effects were detected in one diallel set where three of the 15 progenies exhibited significant SCA effects.

French

Domaine(s)
  • Génétique
  • Amélioration végétale
DEF

Capacité relative d'un individu à transmettre sa supériorité génétique à ses descendants, à la suite d'un croisement avec un individu particulier.

OBS

Dans un programme de croisement quadruple avec quatre lignées pures, à savoir A, B, C et D, le sélectionneur peut obtenir un parent mâle en croisant les lignées A et B et un parent femelle en croisant les lignées C et D. Le choix des lignées est basé sur l'aptitude générale et spécifique à la combinaison de celles-ci.

Spanish

Campo(s) temático(s)
  • Genética
  • Mejora vegetal
DEF

Componente de la varianza genética calculable cuando varios genotipos se entrecruzan en todas las combinaciones posibles.

CONT

[La] aptitud combinatoria específica [...] mide la desviación del rendimiento de un determinado cruzamiento de la media general de aptitud combinatoria de sus dos progenitores.

Save record 1

Record 2 2004-02-03

English

Subject field(s)
  • Genetics
  • Plant Breeding
CONT

General combining ability is the average performance of a strain in a series of crosses. Specific combining ability is the deviation from performance predicted on the basis of general combining ability.

French

Domaine(s)
  • Génétique
  • Amélioration végétale
DEF

Caractéristique génétique d'un individu ou d'une population permettant de prévoir les performances des hybrides qu'il peut former avec divers partenaires.

OBS

Un des critères entrant dans l'évaluation de la dérivation essentielle.

Spanish

Save record 2

Record 3 2002-10-10

English

Subject field(s)
  • Genetics
  • Silviculture
DEF

The relative ability of an organism to transmit genetic superiority to its offspring when crossed with other organisms in general.

OBS

High general combining ability usually implies the presence of genes with additive effects.

French

Domaine(s)
  • Génétique
  • Sylviculture
DEF

Capacité relative d'un individu à transmettre sa supériorité génétique à ses descendants, à la suite d'un croisement quelconque.

Spanish

Save record 3

Record 4 2002-01-30

English

Subject field(s)
  • Genetics
  • Ecosystems
  • Silviculture
DEF

A test in which the general combining ability of selected biotypes growing in isolation is assessed by the performance of their sexually-produced progeny from either open pollination or controlled(cross-) pollination with a pollen mixture.

French

Domaine(s)
  • Génétique
  • Écosystèmes
  • Sylviculture
DEF

Test destiné à apprécier l'aptitude générale à la combinaison de biotypes sélectionnés vivant naturellement à l'état isolé [...]

OBS

On apprécie cette aptitude d'après les caractéristiques des descendances obtenues par voie sexuée en pollinisation libre ou croisée contrôlée (à l'aide de mélanges de pollens, de parents connus).

Spanish

Campo(s) temático(s)
  • Genética
  • Ecosistemas
  • Silvicultura
Save record 4

Record 5 1997-09-08

English

Subject field(s)
  • Botany
  • Plant Breeding
  • Genetics
CONT

Tests and trials for ’AC Juniper’ were conducted at the Agriculture and Agri-Food Canada Research Station in Lacombe, Alberta in 1994 and 1995. The trials consisted of four replicated plots per variety with each plot containing four rows. Plot length was three metres.

CONT

Combining ability for grain yield, yield components, and several agronomic and qualitative traits, was studied in a seven-parent diallel cross. The 21 F SUB 1 hybrids and the seven parental cultivars were grown in replicated plot trials sown at normal seed density in three locations in the years 1992 and 1993. The effects of general combining ability(gca) were highly significant for all the traits measured with the exception of seeds per spikelet, while the specific combining ability(sca) effects were statistically significant for grain yield, plant height, heading time, for all the yield components, and for the Chopin alveographic parameters P and P/L ratio/(From an abstract found in Dialog).

French

Domaine(s)
  • Botanique
  • Amélioration végétale
  • Génétique
CONT

Épreuves et essais : Les épreuves et les essais de 'AC Juniper' ont été effectués à la station de recherche d'Agriculture et Agroalimentaire Canada, à Lacombe (Alberta), en 1994 et en 1995. Aux fins des essais, quatre parcelles répétées mesurant 3 mètres de longueur et contenant chacune quatre rangées ont été utilisées pour chaque variété.

Spanish

Save record 5

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