Genetic Analysis and Combining Ability Studies for Yield Related Characters in Rapeseed

Shehzad, Aamar; Sadaqat, Hafeez Ahmad; Asif, Muhammad; Ashraf, Muhammad Furqan

doi:10.24925/turjaf.v3i9.748-753.427

Cited by 3 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…II, the number of hybrids with the same significant effect of heterosis (positive or negative) in both years of observations Fig. 2 continued observed by Shehzad et al (2015), who noted that the plant height for 15 crosses was on the level of 157.83 cm. Shi et al (2011) noticed significant but low mid-parent heterosis for this trait in the F1 and F2 generations, and the performance of F1 was significantly higher than the mean of the F2 population.…”

Section: Discussionsupporting

confidence: 70%

“…The average number observed in the studied genotypes was 14.49 for parental forms, and 16.76 for hybrids. A much higher mean value of this trait in hybrids (25.99) was noted by Shehzad et al (2015). The highest midparent heterosis effect observed in our study was clearly visible in the three-way cross hybrids, which not only had higher values of heterosis than single cross hybrids, but also more of them exhibited highly significant positive effects for this trait.…”

Section: Discussionsupporting

confidence: 39%

“…On the other hand, Sincik et al (2011) noticed that differences between the F1 hybrids and their parents were non-significant for TSW. Shehzad et al (2015) also observed that genotypes and crosses demonstrated significant differences (P B 0.05), while the interactions between them showed highly significant (P B 0.01) influences on this trait. The authors observed in 15 Brassica genotypes that the mean value of TSW was 3.51 g, while Akbar et al (2008) calculated the mean TSW to be 3.16 g. These values are quite low compared to that noted in our study (4.609 g for parental forms and 4.751 g for hybrids).…”

Section: Discussionmentioning

confidence: 74%

“…In our research, the average number of siliques per plant for the CMS 9 DH hybrids was 455.3, while for CMS/ DH 9 Rfo hybrids, it was 479.8. Higher mean values of this trait were observed by Shehzad et al (2015), in whose research the mean value for the hybrids was 639.41. Li et al (2012) noted that among the yieldrelated traits, the number of siliques per plant displayed the highest heterosis, followed by seeds per silique.…”

Section: Discussionmentioning

confidence: 77%

“…In contrast, Diers et al (1996) reported weak correlations between hybrid productivity and genetic distance in B. napus L. They suggested that GD estimated alone does not identify high-yielding combinations, but in connection with general and specific combining ability effects (GCA and SCA), it creates a tool for the identification the potential of inbred lines in hybrid combinations. Researchers such as Rameeh (2012) or Shehzad et al (2015) also indicated GCA and SCA to be useful in rapeseed breeding programs for hybrid-and openpollinated varieties.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Estimation of heterosis for yield-related traits for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)

et al. 2019

View full text Add to dashboard Cite

Rapeseed breeding programs are focused mainly on improving plant potential and seed yield. One of the ways to improve seed yield in oilseed rape is heterosis, which is hybrid vigor that results in a greater biomass, increased seed yield, and faster development. The purpose of this study was to estimate yield-related trait heterosis for single cross and three-way cross hybrids of winter oilseed rape (Brassica napus L.). A population of 60 doubled-haploid (DH) lines and two generations of hybrids were evaluated in field trials to assess six yield-related traits: plant height, number of branches per plant, number of siliques per plant, silique length, number of seeds per silique, and thousand seed weight. Heterosis effects for each trait were estimated by a comparison of the particular hybrid with: (1) the trait mean over both parents—mid-parent heterosis and (2) to the value of better parent—best-parent heterosis. Traits with clear positive heterosis and traits with varied heterosis were observed in this study. For the first group, we include plant height, silique length, and the number of seeds per silique—a large number of hybrids expressed significant positive heterosis for these traits, independent from the year of observations and the type of hybrid. For the second group, with varied heterosis, we can include the number of branches and siliques per plant and thousand seed weight. For these traits, hybrids exhibited both positive and negative significant heterosis, without a clear pattern for the years and types of hybrids.

show abstract

Section: Discussionsupporting

confidence: 70%

Section: Discussionsupporting

confidence: 39%

Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Estimation of heterosis for yield-related traits for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)

et al. 2019

View full text Add to dashboard Cite

show abstract

Gene Action and Combining Ability Analysis in some Soybean Quantitative Characters

Sen

2020

Journal of Plant Production

View full text Add to dashboard Cite

This present investigation was carried out at Food Legumes Department, Sakha Agricultural Research Station, Agriculture Research Center, Egypt, in summer 2016 and 2017 seasons. Six parental genotypes of soybean were used in this study. In 2016, the Six soybean genotypes were used as parents in half diallel cross mating design. In the second season, the experimental were conducted to evaluate the yield potential and agronomic performance of the obtained F1's hybrids of the fifteen crosses compared with their parents. The results could be summarized as follows: Mean squares for genotypes, General and specific combining ability were highly significant for all the studied traits. The parental line L75-6648 was the best of tested parent in flowering and maturity dates. Also, the crosses Giza111 X Giza21 and L75-6648 X Giza21 , exhibited the lowest mean values for these traits. The parental L75-6648 as well as the crosses L75-6648 X Giza111 and Toano X Giza111, were taller in plant height than their parental means. For number of pods and seeds per plant, the parents Giza111 and Giza21 as well as the crosses Pershing X Giza111 and Holladay X Giza21 gave the highest values for number of pods and seeds per plant. For seed yield per plant, the two parents, Giza21 and Giza111 gave the highest values of this trait. The crosses Pershing X Giza111, Toano X Giza111, Holladay X Giza21 and Giza111X Giza21 gave the highest values for seed yield/plant. The parental variety Giza111(P5) gave significant negative (gi) effects for flowering and maturity dates.

show abstract

Elucidating Genetic Variability of Brassica napus L. Progenitors and Their Crosses for Enhanced Qualitative Traits

Ali Shah,

Ahmad,

Ullah

et al. 2023

JSPAE

View full text Add to dashboard Cite

Evaluation of the breeding population is crucial for the selection of a superior genotype. Hence, the present study was conducted to assess genetic variation among five Brassica napus L. parents and their diallel hybrids to identify the best-performing parents and crosses. Heterosis and inbreeding depression were also assessed for the qualitative traits. Among the parental genotypes, Ancestor 2702 was identified as the best general combiner for protein (1.41%) and oleic acid content (1.21%). 2702×DUNCLED was the best specific combiner for oil content (0.78%), while 2702×2722 was recognized as best cross for linoleic acid content (1.3%). Similarly, DUNCLED×2702 was the best reciprocal cross for oil content (2.4%) and linoleic acid content (0.4 %), while P1-801×2702 was considered the best cross for protein content (2.2%) and oleic acid (1.7%). All the qualitative traits revealed a broad sense of heritability and non-additive type of gene action, which indicated the later generation selection for further improvement. High oleic acid content, preferred negative mid and best parent heterosis for erucic acid, glucosinolate and moisture contents was reported for 2702×DUNCLED. The favorable cross combination for protein and oil content was 2702×2722, which also yielded the positive mid and best parent heterosis. Inbreeding depression for qualitative traits ranged from -20.8% to 22.9%. It was concluded that among all the genotypes, accession 2702 was the best general, specific and reciprocal combiner, and the best parent heterosis for all traits when crossed with genotypes DUNCLED, P1-119 and 2722. It is also suggested that the screened crosses be carried to further generations to improve the quality related traits of Brassica napus. L.

show abstract

Genetic Analysis and Combining Ability Studies for Yield Related Characters in Rapeseed

Cited by 3 publications

References 13 publications

Estimation of heterosis for yield-related traits for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)

Estimation of heterosis for yield-related traits for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)

Gene Action and Combining Ability Analysis in some Soybean Quantitative Characters

Elucidating Genetic Variability of Brassica napus L. Progenitors and Their Crosses for Enhanced Qualitative Traits

Contact Info

Product

Resources

About