Line X tester analysis for yield components in sunflower and their correlations with seed yield (Helianthus annuus L.)

Hladni, Nada; Škorić, Dragan; Kraljevic-Balalic, Marija; Jocić, Siniša; Dušanić, Nenad

doi:10.2298/gensr1102297h

Cited by 14 publications

(17 citation statements)

References 4 publications

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“…To achieve high seed yield per unit area it is necessary to increase the number of seeds per inflorescence up to more than 2.000 [24]. Thus, our results suggest that the breeding for increasing the number of achenes per head and the head mass may significantly contribute to increase seed yield, especially in farming systems with the presence of pollinating insects, in particular Africanized A. mellifera honeybees.…”

Section: Discussionmentioning

confidence: 78%

Phenotypic Correlation and Path Analysis in Sunflower Genotypes and Pollination Influence on Estimates

Chambó¹,

Oliveira²,

Garcia³

et al. 2017

Open Biol. Scie. J.

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Eight sunflower genotypes were analyzed to estimate correlation values for nine agronomic traits. Path analysis was used to partition the correlation values into direct and indirect effects on seed yield in two pollination tests (open and restricted pollination). In both tests, there were significant (p<0.05) positive correlation values between seed yield and head diameter, head mass, number and mass of achenes per head and first and last count of germination. There was no correlation (p≥0.05) between seed yield and 1000 seed weight in both pollination tests. Oil content was not correlated (p≥0.05) with seed yield in the open pollination, but it was positively correlated (p<0.05) in restricted plants. The path analysis, in both pollination tests, indicated that head mass had the highest direct effect on seed yield. It can be concluded that the variables head mass and number of seeds per inflorescence (for pollination open) should get due attention in sunflower breeding programs, indirectly contributing to seed yield. In addition, for both pollination tests, the number of seeds per inflorescence has high significant positive correlation to the oil content and may contribute to its increase.

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Section: Discussionmentioning

confidence: 78%

Phenotypic Correlation and Path Analysis in Sunflower Genotypes and Pollination Influence on Estimates

Chambó¹,

Oliveira²,

Garcia³

et al. 2017

Open Biol. Scie. J.

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“…Correlation between seed yield and seed protein content was positive but not significant (RADIĆ et al 2013). The focus should be placed on traits that have a very strong positive correlation on seed yield HLADNI et al (2011b).…”

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confidence: 91%

Correlation and path analysis of yield and yield components of confectionary sunflower

et al. 2016

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Path coefficient analysis was applied to gain information on direct and indirect effects of studied traits (seed oil content, kernel oil content, seed protein content, kernel protein content, head diameter, kernel ratio and plant height) on sunflower seed yield. Traits which exhibit the highest effects on seed yield will be used as a selection criterion in confectionary sunflower breeding. The research was conducted during three vegetation seasons on 22 experimental confectionary sunflower hybrids, created in breeding program the Institute of Field and Vegetable Crops. Among the largest number of examined traits, significant and highly significant correlations were found. With the analysis of simple correlation coefficients a low interdependence was determined between, kernel protein content, plant heights with seed yield. Negative but weak correlation was determined between kernel oil content, seed protein content, kernel ratio with seed yield. Established a negative strong correlation of head diameter (-0.190 *) and negative very strong correlation of seed oil content (-0.351 **) with seed yield. The seed oil content had a very strong direct negative effect on seed yield (DE=-0.831 **). The head diameter, plant height, seed protein content had weak negative direct effect on seed yield. Kernel protein content and kernel oil content has demonstrated a weak direct positive effect on seed yield. Path coefficient analysis for seed yield showed very strong direct effect for kernel ratio (DE=0.487 *) on seed yield, it shows that the kernel ratio is important selection criterion for confectionary sunflower breeding.

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“…The genus Helianthus, apart from constituting the basic genetic stock, which cultivated sunflower originated from, continues to contribute to specific characteristics for cultivated sunflower improvement (Seiler, 2010). Breeding for yield components and the creation of a new sunflower ideotype require an increased use of wild Helianthus species in breeding programs (Hladni et al, 2011). One of safe ways of increasing the genetic variability of the genus Helianthus is the discovery of desirable genes in the wild species and their incorporation into cultivated sunflower genotypes by interspecies hybridization (Škorić et al, 2007;Hladni et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Gene effect, combining ability and heterosis in sunflower morphophysiological traits

Hladni

Terzić

Miklič

et al. 2011

Helia

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Four interspecies populations, originating from three annual (H. debilis, H. praecox, H. deserticola) and one perennial (H. resinosus) wild species, were used to produce 13 new (cms) inbred lines with cytoplasmic male sterility, three Rf restorer lines with good general combining ability used as testers and their F 1 hybrids. A two-year trial with three replicates was set up using the line × tester method. The inbred A-lines, Rf-testers and F 1 hybrids differed significantly in the mean values for both studied traits. The mode of inheritance for leaf area was dominance and superdominance of the better parent and for plant height it was superdominance of the better parent. Highly significant positive values of general combining ability for both traits were found in inbred lines NS-G-7, NS-G-8, NS-G-9. The greatest highly significant positive specific combining ability value was found in NS-G-6 × RUS-Rf-OL-168 for the total leaf area per plant and in NS-G-6 × RHA-N-49 for plant height. The non-additive gene effect had greater influence on both traits. A significant heterotic effect was found for both traits in relation to the parental average so as in relation to the better parent.

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Line X tester analysis for yield components in sunflower and their correlations with seed yield (Helianthus annuus L.)

Cited by 14 publications

References 4 publications

Phenotypic Correlation and Path Analysis in Sunflower Genotypes and Pollination Influence on Estimates

Phenotypic Correlation and Path Analysis in Sunflower Genotypes and Pollination Influence on Estimates

Correlation and path analysis of yield and yield components of confectionary sunflower

Gene effect, combining ability and heterosis in sunflower morphophysiological traits

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