Combining ability analysis in sunflower (Helianthus annuus L.)

doi:10.37992/2022.1303.137

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Given its immense potential, it can serve as a viable option to fulfill the demand of edible oil. Its main beauty is its short life span (90-120 days) due to which it can be easily adjustable to our cropping system (Dhanalakshmi et al, 2022). It can be grown in rain fed and irrigated areas successfully twice a year due to its wider adaptability.…”

Section: Introductionmentioning

confidence: 99%

Genetic Variability Analysis for Achene Yield and Its Related Traits in Sunflower

2023

IJAB

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Pakistan is deficient in edible oil production. The sunflower being an important oilseed crop due to better oil composition, short duration as a cheapest source of energy and major component of our daily diet can be used for overcoming the gap. In this experiment combining ability was computed for achene yield and its related trait. 15 Genotypes of sunflower were crossed by using line × tester pattern. Out of 15 genotypes, A6, A7, A10, A11, A12, A17, A19, A20, A21 and A26 were taken as females (lines) and A8, A9, A16, A18 and A22 were taken as male (testers) in this experiment. 50 Crosses were made. The parental and F1 cross seeds was sown in randomized complete block design in 3 replications in next growing season. The data was recorded for number of leaves/plant, leaf area, plant height, head angle, fresh head diameter, dry head diameter, No of achenes/head, average yield/plant, 100 achene weight and harvest index. The recorded data was used to estimate the genetic variation among the genetic material. Line × tester analysis was used for estimating combining ability effects of sunflower genotypes. Analysis of variance, Line × Tester and Crosses vs parents showed highly significant differences among the sunflower accessions. Significant and positive GCA was found among lines A10, A21 for average yield and A17, A26 for 100 achene weight. Among testers significant and positive GCA values were found in A9 for average yield, A18 for 100 achene weight. Dominance variance represented that the ratio of GCA: SCA variance for all of the investigated traits is more than unity. All the lines had highest contribution to the total variance which indicated the presence of maternal effects. The findings suggest that crosses can produce heterotic effects which can be utilized for developing sunflower hybrids with high yield potential.

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Section: Introductionmentioning

confidence: 99%

Genetic Variability Analysis for Achene Yield and Its Related Traits in Sunflower

2023

IJAB

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Determining Combining Ability in Sunflower (Helianthus annus L.)

Singh¹,

Kumar²,

Kumar³

2018

Int.J.Curr.Microbiol.App.Sci

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Breeding investigations into the gene action and agronomic performance of sunflower traits based on F1 top-cross hybrids

Makanda

Matamela²,

Mashingaidze³

et al. 2012

Helia

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Information on the performance and gene action of sunflower traits is still scarce in southern Africa despite the crop's increasing importance and the growing demand for adapted cultivars. To generate this information, 30 malesterile lines were cross-bred to a restorer line generating 30 experimental hybrids. The hybrids and three check varieties were evaluated in South Africa, Zambia and Zimbabwe. Data was analysed using REML procedure in Gen-Stat®. Significant differences (P<0.05) were observed for grain yield traits, oil content and days to 50% flowering. Grain yield ranged between 1700 kg ha -1 and 4278 kg ha -1 , 1000-seeds weight between 59.4 g and 89.3 g, oil content between 36.6% and 44.6%, and days to 50% flowering between 55.5 and 68.0 for the hybrids but going up to 70 for the control varieties. Five hybrids were ranked above the highest performing check variety for grain yield. Two hybrids, HV9120 and HV9132, significantly outperformed the highest check variety by up to 19.6% and the lowest check variety by up to 91.6%. Oil content showed similar trends with eight hybrids having up to 6.8% yield advantage over the highest check variety and 19.3% over the lowest check variety. The high yields were attributed to heterosis and indicated the high potential for grain yield and oil content from the current germplasm set. The presence of high yielding hybrids with shorter days to 50% flowering, such as HV9132, HV9127, HV9128 and HV9135, showed that it was possible to breed for the short growing season, characteristics of most southern African areas, without compromising grain yield. General combining ability (GCA) effects were significant for all the traits indicating the importance of additive gene action for the traits. Parental lines KP1235, KP1304 and KP1290 that showed desirable GCA effects for at least three of the important traits, were selected for inclusion in the breeding programme for cultivars adapted to the region.

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Combining ability analysis in sunflower (Helianthus annuus L.)

Cited by 4 publications

References 6 publications

Genetic Variability Analysis for Achene Yield and Its Related Traits in Sunflower

Genetic Variability Analysis for Achene Yield and Its Related Traits in Sunflower

Determining Combining Ability in Sunflower (Helianthus annus L.)

Breeding investigations into the gene action and agronomic performance of sunflower traits based on F1 top-cross hybrids

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