scholarly journals Studies on the combining ability of dwarf restorer lines in sunflower (Helianthus annuus l.)

Helia ◽  
2011 ◽  
Vol 34 (54) ◽  
pp. 89-98 ◽  
Author(s):  
K. Gejli ◽  
Shanker Goud ◽  
K.M. Boraiah
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Helianthus Annuus L

scholarly journals GENERAL AND SPECIFIC COMBINING ABILITY IN SUNFLOWER (Helianthus annuus L.) / APTITUD COMBINATORIA GENERAL Y ESPECÍFICA EN EL GIRASOL (Helianthus annuus L.) / APTITUDE À LA COMBINATION GENERAL ET SPECIFIQUE CHEZ LE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2001 ◽  
Vol 24 (34) ◽  
pp. 1-16 ◽  
Author(s):  
Domenico Laureti ◽  
Andrea Del Gatto
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Central Italy ◽  
Specific Combining Ability ◽  
First Year ◽  
Male Sterile ◽  
Breeding Programs ◽  
East Central ◽  
Helianthus Annuus L ◽  
Selection For

SUMMARYA total of 245 test cross progenies obtained by crossing cytoplasmic male sterile (CMS) lines and restorer (RHA) lines were evaluated in replicated trials in 1995 and 1997. Experiments were carried out in two locations (Osimo, East Central Italy and Budrio, Northern Italy) in 1995, whereas in 1997 trials were conducted only in Osimo. General combining ability (GCA) and specific combining ability (SCA) of the parents was evaluated to identify genotypes suitable to be used as testers for breeding programs and to verify the performance of hybrids. The results obtained in 1995 were used to make test crosses in 1996 to be evaluated in 1997. The GCA and SCA of RHA and CMS lines were nearly always significant for all the studied traits when lines were randomly taken in 1995. When selected testers were used on the basis of the results of the first year, the SCA of new RHA lines and GCA of new CMS lines were not significant for achene yield, but they were for the other traits.The best GCA estimates for RHA were often higher than those of CMS, indicating that selection for RHA could be more useful than for CMS. As expected, GCA was always lower than SCA. CMS and RHA, with high variance among their test crosses for yield and many other traits, could be used as testers. The lack of a tester with high variance in all traits requires more than one tester in evaluating lines. The GCA of a line can change in function of the germplasm with which it is combined.

HETEROSIS, COMBINING ABILITY, AND PREDICTED SYNTHETICS FROM A DIALLEL CROSS IN SUNFLOWERS (HELIANTHUS ANNUUS L.)

1966 ◽  
Vol 46 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Eric D. Putt
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Oil Content ◽  
Diallel Cross ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Helianthus Annuus L ◽  
The Mean ◽  
Seed Characters ◽  
Mature Weight

Heterosis occurred for the eight plant and seed characters studied. It was most frequent for yield of seed and height of plant. Mean squares for general combining ability (gca) and specific combining ability (sca) were significant (P =.01) for all characters. The estimated components for gca were greater than for sca for days to mature, weight per bushel, and percent oil in the seed; less for height and yield of seed; and essentially the same for days to bloom, diameter of head, and weight per 1000 seeds.The yield of seed and percent oil in the seed, for the highest ranking 100 synthetics that could be composed from the 10 lines, was predicted in F6 assuming 50 and 60% outcrossing between F2 and F6. Virtually all values exceeded the mean performance of four check samples of commercial hybrids. Many exceeded the highest rank check for oil content in the seed. Fourteen of the highest ranking 100 synthetics for yield and 30 for oil content consisted of two or three lines. It was concluded that synthetics can be superior to the present hybrids in heterosis and that desirable synthetics can be made from only a few lines.

scholarly journals Identification of Restorers with Desirable General Combining Ability from among New Inbred Lines of Sunflower (Helianthus annuus L.)

2020 ◽  
Vol 9 (12) ◽  
pp. 2923-2932
Author(s):  
S. D. Nehru ◽  
Akshata Timmanna Budihal ◽  
M. S. Umar Farooq ◽  
Y. G. Shadakshari ◽  
M. S. Uma ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Inbred Lines ◽  
General Combining Ability ◽  
Helianthus Annuus L

scholarly journals Combining ability analysis for agronomic traits in sunflower (Helianthus annuus L)

Helia ◽  
2005 ◽  
Vol 28 (43) ◽  
pp. 125-134 ◽  
Author(s):  
Ortis L. ◽  
Nestares G. ◽  
Frutos E. ◽  
Machado N.
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Agronomic Traits ◽  
Helianthus Annuus L ◽  
Combining Ability Analysis

scholarly journals Combining ability for seed yield, its components and oil content in sunflower (Helianthus annuus L.)

2017 ◽  
Vol 8 (1) ◽  
pp. 96
Author(s):  
A.U. Ingle ◽  
S.S. Nichal ◽  
V.L. Gawande ◽  
E.R. Vaidya ◽  
B.S. Kharat
Keyword(s):  
Helianthus Annuus ◽  
Seed Yield ◽  
Combining Ability ◽  
Oil Content ◽  
Helianthus Annuus L

Combining Ability Analysis in Sunflower (Helianthus annuus L.)

2005 ◽  
Vol 8 (5) ◽  
pp. 710-713
Author(s):  
Masood Jan, Farhatul . ◽  
Raziudin . ◽  
Ghulam Hassan .
Keyword(s):  
Helianthus Annuus ◽  
Combining Ability ◽  
Helianthus Annuus L ◽  
Combining Ability Analysis

Combining-ability analysis of somatic embryogenesis from epidermal layers in the sunflower ( Helianthus annuus L.)

2000 ◽  
Vol 100 (3-4) ◽  
pp. 621-624
Author(s):  
G. Alibert ◽  
A. Berville ◽  
A. Sarrafi ◽  
A. R. Bolandi ◽  
M. Branchard ◽  
...  
Keyword(s):  
Somatic Embryogenesis ◽  
Helianthus Annuus ◽  
Combining Ability ◽  
Helianthus Annuus L ◽  
Combining Ability Analysis
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