General and Specific Combining Ability for Quantitative Characters in Sunflower

Machikowa, Thitiporn; Saetang, Chiraporn; Funpeng, Kiattisak

doi:10.5539/jas.v3n1p91

Cited by 32 publications

(25 citation statements)

References 10 publications

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“…This is in accordance with findings of Divita et al (2012), who stated that the non-additive effect determines the size of heads of branched hybrids. However, findings of Machikowa et al (2011) suggested that the additive gene effects were found to be more important for the standard oil sunflower head diameter. Two hybrid combinations Heliopa × Iskra and Talia × Neoplanta expressed highly positive SCA effects on flowering time, lateral floral diameter, number of branches and plant height (Table 3).…”

Section: Resultsmentioning

confidence: 97%

Evaluation of combining ability in ornamental sunflower for floral and morphological traits

Cvejić¹,

Jocić²,

Mladenović³

et al. 2017

CZECH J GENET PLANT

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Cvejić S., Jocić S., Mladenović E., Jocković M., Miladinović D., Imerovski I., Dimitrijević A. (2017): Evaluation of combining ability in ornamental sunflower for floral and morphological traits. Czech J. Genet. Plant Breed., 53: 83−88.Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The objective of the study was to investigate breeding values of new F 1 ornamental sunflower hybrids using incomplete diallel crossing of four ornamental inbred lines: Heliopa, Talia, Iskra and Neoplanta. Six traits important for ornamental market use were studied. Additive gene effects prevailed in most tested traits except for lateral floral diameter and duration of lateral flowering, which exhibited non-additive effects. The results indicated that the Talia × Neoplanta hybrid combination was the most promising for cut flowers due to long and strong branches, relatively big lateral flowers while Heliopa × Iskra and Heliopa × Talia hybrids were suitable for use as garden plants due to strong plant habit, long flowering time and desirable plant height. The results obtained from this study will be helpful for further ornamental sunflower breeding.

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Section: Resultsmentioning

confidence: 97%

Evaluation of combining ability in ornamental sunflower for floral and morphological traits

Cvejić¹,

Jocić²,

Mladenović³

et al. 2017

CZECH J GENET PLANT

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“…It is likely that non-additive gene effect might have played a role in inheritance of plant height, days to anthesis and days silking in F 1 hybrids with good specific combining ability such as TAIS03 × DT, IWD × SISF03, DT × SISF03, TAIS03 × KOBN03, KOBN03 × GUMA03 and IWD × GUMA03. Machikowa et al (2011) reported that SCA were highly significant for plant height in sunflower and revealed that non-additive effects were important for plant height. The parental populations of the crosses such as, TAIS03 × DT, IWD × SISF03, DT × SISF03, TAIS03 × KOBN03, KOBN03 × GUMA03 and IWD × GUMA03, that exhibited highest SCA effects as already stated above, were composites obtained from Taha, Gurumanchagyili, Sibgungyili, Kokpeng and Savanna Agricultural Research Institute (SARI), all of which are different communities in the Northern region of Ghana.…”

Section: Genetic Variability Of Agronomic and Yield Components Among mentioning

confidence: 99%

Diallel Analysis and Evaluation of Parents and F1 Progenies of Maize (Zea mays L.) for Tolerance to Drought and Striga hermonthica (Del.) Benth in the Guinea Savanna Agro-Ecological Zone of Ghana

Bawa¹,

Addai²,

Abdulai³

et al. 2017

American Journal of Agricultural and Biological Sciences

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Field studies were conducted to evaluate 6 parents and 30 F 1 hybrids of maize for tolerance to drought and Striga hermonthica in Nyankpala, Ghana during the 2014 and 2015 cropping seasons. These genotypes were evaluated for two years on single-row plots of three replicates, in a randomized complete block design. The control plants were planted in July each year which is the normal and usual time of planting of maize in the study area, whilst the waterstressed plants were planted six weeks later to ensure that their growth period coincides with the drought period. The Striga hermonthica infested plants were also planted at the normal time of planting maize in the study area. Results showed that highly negative significant GCA effect for the parent populations was observed in TAIS03, KOBN03-OB, DT-STR-W-C2 and IWD-C3-SYN-F2 for majority of the traits. The four parents were good general combiners for majority of the traits observed. For the F 1 hybrids, KOBN03 × DT, DT × TAIS03, TAIS03 × KOBN03, IWD × GUMA03, GUMA03 × DT, GUMA03 × SISF03 and SISF03 × TAIS03 gave the highest negative significant SCA effect for most of the traits studied and are good specific combiners for the traits observed. The highly significant negative GCA and SCA effects of parents and F 1 hybrids for majority of observed traits showed that those genotypes were highly tolerant to drought and/or Striga hermonthica. Drought rating, leaf-rolling rating, striga rating, striga count and Anthesis-Silking Interval (ASI) had been reduced significantly when plants were watered throughout the experimental period (control) as compared to the water-stressed and striga-infested plants. However, grain yield, hundred-grain weight, number of ears harvested, plant height, ear height, days to 50% anthesis, days to 50% pollen shed and days to 50% silking were significantly higher (p<0.05) for the normal (control) plants as compared to the water-stress and striga-infested plants. In drought-prevalent or striga-infested geographical areas like Northern Ghana, parent and F 1 hybrid populations such as (TAIS03, KOBN03-OB, DT-STR-W-C2 and IWD-C3-SYN-F2) and (KOBN03 × DT, DT × TAIS03, TAIS03 × KOBN03, IWD × GUMA03, GUMA03 × DT, GUMA03 × SISF03 and SISF03 × TAIS03) respectively, can be used for increased grain yield.

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“…Further, the knowledge of combining ability analysis is one of the powerful tools available which give the estimates of combining ability effects and side in selecting desirable parents and cross for further exploitation. Combining ability also specify the nature and magnitude of gene action involved in the expression of different quantitative traits (Machikowa, 2011). The importance of heterosis, combining ability and gene action studies for different yield traits in cucumber have been duly realized earlier by several workers like Mule et al, (2012), Kumar et al, (2013a), Golabadi et al, (2015), Kumar et al, (2016) and Kumar et al, (2017).…”

Section: Introductionmentioning

confidence: 96%