Combining Ability of Parents and Hybrids for Sugar Yield and Its Attributing Traits in Sweet Sorghum [Sorghum bicolor (L.) Moench]

Olweny, C.; Abayo, G.O.; Dida, Mathews M.; Okori, P.

doi:10.1007/s12355-016-0430-5

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Female inbred lines with high sugar content were released by Texas A&M University [ 74 ]. The combining ability of the parental lines and hybrids has recently been used to select parental lines for future crossing strategies and screen the hybrids for commercial cultivation [ 77 ].…”

Section: Origin Genetic Diversity and Breedingmentioning

confidence: 99%

Sweet sorghum as biofuel feedstock: recent advances and available resources

Mathur

Umakanth

Tonapi

et al. 2017

Biotechnol Biofuels

192

119

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Sweet sorghum is a promising target for biofuel production. It is a C4 crop with low input requirements and accumulates high levels of sugars in its stalks. However, large-scale planting on marginal lands would require improved varieties with optimized biofuel-related traits and tolerance to biotic and abiotic stresses. Considering this, many studies have been carried out to generate genetic and genomic resources for sweet sorghum. In this review, we discuss various attributes of sweet sorghum that make it an ideal candidate for biofuel feedstock, and provide an overview of genetic diversity, tools, and resources available for engineering and/or marker-assisting breeding of sweet sorghum. Finally, the progress made so far, in identification of genes/quantitative trait loci (QTLs) important for agronomic traits and ongoing molecular breeding efforts to generate improved varieties, has been discussed.

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Section: Origin Genetic Diversity and Breedingmentioning

confidence: 99%

Sweet sorghum as biofuel feedstock: recent advances and available resources

Mathur

Umakanth

Tonapi

et al. 2017

Biotechnol Biofuels

192

119

View full text Add to dashboard Cite

show abstract

“…The estimated variance components of combining ability were analyzed using GenStat v20.1. To estimate trait heritability, the analogous broad-sense and narrow-sense coefficients of genetic determination were estimated according to Olweny et al [ 40 ]. Significance tests for GCA and SCA effects were performed using a t -test.…”

Section: Methodsmentioning

confidence: 99%

Identification of heterosis and combining ability in the hybrids of male sterile and restorer sorghum [Sorghum bicolor (L.) Moench] lines

Zhang,

Chen,

Gao

et al. 2024

PLoS ONE

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In sorghum [Sorghum bicolor (L.) Moench], combining ability and heterosis analysis are commonly used to evaluate superior parental lines and to screen for strongly heterotic hybrids, which helps in sorghum variety selection and breeding. In this context, combining ability and heterosis analysis were assessed using 14 restorer lines and seven cytoplasmic male sterile (CMS) lines in 2019 and 2020. The analysis of variance of all cross combinations had highly significant differences for all characters studied, which indicated a wide variation across the parents, lines, testers, and crosses. Combining ability analysis showed that the general combining ability (GCA) and specific combining ability (SCA) of the different parents were differed significantly among different traits. Most combinations with high SCA also showed high GCA in their parent lines. The heritability in the narrow sense of grain weight per panicle and grain yield was relatively low, indicating that the ability of these traits to be directly inherited by offspring was weak, that they were greatly affected by the environment. The better-parent heterosis for plant height, grain weight per panicle, panicle length, and 1000-grain weight was consistent with the order of mid-parent heterosis from strong to weak. The GCA effects of two lines 10480A, 3765A and three testers 0-30R, R111, and JY15R were significant for the majority of the agronomic traits including grain yield and might be used for improving the yield of grains in sorghum as parents of excellent specific combining ability. Seven strongly heterotic F1 hybrids were screened; of these, hybrids 3765A × R111, 1102A × L2R, and 3765A × JY15R showed significant increases in seed iristectorigenin A content and will feature into the creation of new sorghum varieties rich in iristectorigenin A.

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“…Nevertheless, for growing in arid regions, one of the most popular agricultural crops is sugar sorghum. This crop is characterized by a wide adaptive ability, high growth, content of water-soluble sugars in the juice of the main stem is up to 16-23% [2]. At the same time, this plant has a high photosynthetic efficiency and can form a powerful biomass in a short time.…”

Section: Introductionmentioning

confidence: 99%

Combinational ability of crossing components and heterosis of F1 hybrids of sugar sorghum by biomass yield

et al. 2021

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Currently, the most promising direction of breeding is the creation of F1 hybrids of sugar sorghum, based on the identification and selection of parental forms with high combinational ability. The source material and F1 hybrids were grown in the arid conditions of the Saratov Right Bank (Russia): the hydrothermal coefficient during the growing season was 0.68. The evaluation of the combinational ability of crossing components was carried out using the topcross method. As a result of the tests, the L-52/13 line was identified with high GCA effects (15.71), and the highest SCA dispersions were found in the Saratovskoe 90 variety and the L-39/12 line (91.80-189.27). It was found that the type of sterile cytoplasm of iso-nuclear CMS-lines had a significant impact on the manifestation of SCA in terms of biomass yield: higher dispersion indicators were noted in 9E Zheltozernoye 10 (36.66). Genes with an additive effect are involved in the genetic control of this trait in paternal forms, and non-additive genes in maternal forms. In addition, each hybrid combinationwas observed with superdomination: the coefficient of phenotypic dominance varied from 2.01 to 18.91. It is advisable to use the obtained information in the hybridization of sugar sorghum to obtain high-heterosis hybrids.

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Combining Ability of Parents and Hybrids for Sugar Yield and Its Attributing Traits in Sweet Sorghum [Sorghum bicolor (L.) Moench]

Cited by 6 publications

References 8 publications

Sweet sorghum as biofuel feedstock: recent advances and available resources

Sweet sorghum as biofuel feedstock: recent advances and available resources

Identification of heterosis and combining ability in the hybrids of male sterile and restorer sorghum [Sorghum bicolor (L.) Moench] lines

Combinational ability of crossing components and heterosis of F1 hybrids of sugar sorghum by biomass yield

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