Combining ability and heterosis effects in sunflower of Byelorussian origin

Волотович, А.А.; Silkova, T.A.; Fomchenko, N. S.; Prokhorenko, O.V.; Давыденко, О. Г.

doi:10.2298/hel0848111v

Cited by 8 publications

(11 citation statements)

References 1 publication

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“…The achene number of the F 1 crosses was mainly affected by the R-lines and there was a close relationship between the achene number of the F 1 crosses and the BPH (Figure 1G), a demonstration of the heterosis existence as also reported by Jan et al (2005). The first PC of the oil content was mainly affected by the F 1 crosses and both the MPH and BPH (Table 7), which indicated the heterosis existence for the oil content which has also been confirmed by Volotovich et al (2008). The second PC was negatively affected by the CMS-lines while the third PC by the R-lines.…”

Section: Resultssupporting

confidence: 53%

Impact of parent inbred lines on heterosis expression for agronomic characteristics in sunflower

Haddadan¹,

Ghaffari²,

Hervan³

et al. 2020

CZECH J GENET PLANT

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To study the impact of parent-inbred lines on the heterosis expression of the agronomic characteristics in sunflower hybrids, 24 sunflower hybrids along with the parent lines were evaluated for their agronomic characteristics as a randomised complete block design with three replications in the 2018–2019 growing seasons in Karaj, Iran. According to the results, the hybrids R29 × A346, R19 × A346, R29 × A40 had the highest achene yield (4 159, 4 143 and 4 108 kg/ha, respectively), but the highest heterosis was observed in R29 × A212 and R19 × A212 (182 and 181%, respectively) suggesting that the incidence of heterosis is related to the relative performance of both the parents and hybrids. The results confirmed the heterosis expression for most of the agronomic traits. The heterosis for the days to flowering and maturity were negative. All the mid-parent heterosis (MPH) for the plant height, head diameter, stem diameter and achene number were positive, while only the plant height was positive for the best parent heterosis (BPH). Almost all the MPH and BPH of the crosses for the achene and oil yield were positive, which indicates a considerable heterosis for the achene and oil yield. The results showed that the relative impact of the restorer (R)-lines was higher than the cytoplasmic mail sterile (CMS)-lines on the heterosis expression for the days to maturity, stem diameter, achene number per head and achene and oil yield. The CMS-lines had more of an impact on the heterosis expression for the plant height and the relative impact of the R-lines and CMS-lines were almost similar for the days to flowering, head diameter, achene weight and oil content. Due to the higher relative impact of the paternal lines on the heterosis expression for half of the studied characteristics in this study, choosing suitable parental lines will have a crucial role in breeding the sunflowers for a desired trait.

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Section: Resultssupporting

confidence: 53%

Impact of parent inbred lines on heterosis expression for agronomic characteristics in sunflower

Haddadan¹,

Ghaffari²,

Hervan³

et al. 2020

CZECH J GENET PLANT

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“…The genotypes by environment interaction was significant (P<0.05) for days to 50% flowering and significant (P<0.01) for the other traits, indicating differential responses of genotypes to the two environments. Javed and Aslam (1995), Jan et al (2005), Kumar et al (2014) and Khan et al (2017) found significant mean squares for genotypes, environment (drought, locations or salinity) and their interaction for SY/P, HD, oil %, days to maturity and 100-seed weight. Phenotypic and genotypic correlations Phenotypic and genotypic correlations among traits at loamy sand soil, clay soil and their combined are presented in Tables 4, 5 and 6.…”

Section: Resultsmentioning

confidence: 96%

A Correlation and Path-Coefficient Analysis of Seed Yield Components of Sunflower Under Loamy Sand and Clay Soil Conditions

2018

Minia Journal of Agricultural Research and Development

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The present investigation was carried out at Fac. Agric. Exper. Farm (clay soil), and Arab Al-Awamer Res. Stn. ARC. (loamy sand soil), to study phenotypic and genotypic correlations among traits of 24 genotypes of sunflower (4 females, 4 males and 16 hybrids). Path-coefficient analysis was done for the four components of seed yield/head (number of seeds/head, husk weight of 100 seeds, oil weight of 100 seeds and kernel weight of 100 seeds) with the dependent character; seed yield/head. The analysis of variance indicated significant (P<0.01) mean squares of environments, genotypes and genotype x environment interaction for all traits. Days to 50% flowering showed low correlations with both of seed yield/head and oil yield/head at genotypic and phenotypic levels from the combined data. Genotypic and phenotypic correlations were high in magnitude between plant height, head diameter, stalk diameter, 100 seed weight, husk weight in 100 seeds, oil weight in 100 seeds, kernel weight in 100 seeds and number of seeds/head, and each of seed yield/head and oil yield/head at both sites and the combined. However, the correlations of husk % with oil and seed yield/head were negative in clay soil and the combined. The other correlations among traits at both sites and combined were discussed. The direct and indirect effects of the contributing traits of seed yield/head varied greatly from loamy sandy soil to clay soil. The breeder should evaluate the breeding materials under a variety of environments, to get reliable estimates of genetic parameters. The combined estimates of direct and indirect effects of the seed yield/head component traits at genotypic level could be ranked as husk weight followed by number of seeds/head, kernel weight and oil weight in 100 seeds.

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“…Chigeza et al, 30 evaluated the combining ability of field sunflower for oil yield and its components and showed that additive effects were the most important for seed yield and oil yield 51 whilst for oil content both GCA and SCA effects appear to be important, with SCA effects having more influence than GCA. 31,52 Contrary to their results, Ortis et al, 32 and Blank et al, 51 observed that additive genetic effects had a larger influence on the oil content. Similar trend was found for fatty acids including linoleic, oleic, and palmitic acids.…”

Section: Combining Ability For Nutritional Valuementioning

confidence: 83%

“…Selection on the basis of grain yield alone is usually not effective, whereas selection along with its component characters could be more effective and reliable. 33 The importance of additive gene effects for grain yield in maize, [21][22][23][24] wheat, 2,9,10,41 sorghum, 43 sunflower, 30,31 and cowpea 33 has been reported ( Table 1). Makumbi et al, 22 reported that the variances for GCA effects became relatively more important than the variance for SCA effects when the maize inbred lines used under tests had been subjected to low nitrogen and drought conditions.…”

Section: Combining Ability For Yieldmentioning

confidence: 99%

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2016

BBIJ

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In any hybridization program, recognition of the best combination of two (or more) parental genotypes to maximize variance within related breeding populations, and as a result the chance of recognizing superior transgressive segregants in the segregating populations, are the most critical challenge to plant breeders. Since the combining ability was introduced in 1942, it has been widely adopted in plant breeding to compare performances of lines in hybrid combinations. In addition, the ability to predict optimal genotype combinations for different traits based on molecular-based genetic data would greatly enhance the efficiency of plant breeding programmes. This article reviews our current understanding of combining ability in plant breeding as well as recent advances in research in this field. It brings an introduction to combining ability and the concept of general and specific combining ability, methods for estimating combining ability, and QTL mapping of related traits.

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Combining ability and heterosis effects in sunflower of Byelorussian origin

Cited by 8 publications

References 1 publication

Impact of parent inbred lines on heterosis expression for agronomic characteristics in sunflower

Impact of parent inbred lines on heterosis expression for agronomic characteristics in sunflower

A Correlation and Path-Coefficient Analysis of Seed Yield Components of Sunflower Under Loamy Sand and Clay Soil Conditions

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