Heritability of agronomic characters of Srikandi Putih x local waxy corn

Edy,; Takdir, Andi; Numba, Sudirman; Ibrahim, Bona Malik

doi:10.1088/1755-1315/484/1/012027

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…High heritability indicates that the influence of genetic factors is more significant for phenotypes when compared to the environment. Moderate to high heritability estimates were reported for waxy corn yield-related traits [ 43 ]. Our present study found narrow-sense heritability ranging from 0.01 to 0.77 for yield and its associated traits ( Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

The Combining Ability and Heterosis Analysis of Sweet–Waxy Corn Hybrids for Yield-Related Traits and Carotenoids

Prai-anun,

Jirakiattikul,

Suriharn

et al. 2024

Plants

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Improving sweet–waxy corn hybrids enriched in carotenoids via a hybrid breeding approach may provide an alternative cash crop for growers and provide health benefits for consumers. This study estimates the combining ability and heterosis of sweet–waxy corn hybrids for yield-related traits and carotenoids. Eight super sweet corn and three waxy corn lines were crossed to generate 24 F1 hybrids according to the North Carolina Design II scheme, and these hybrids were evaluated across two seasons of 2021/22. The results showed that both additive and non-additive genetic effects were involved in expressing the traits, but the additive genetic effect was more predominant. Most observed traits exhibited moderate to high narrow-sense heritability. Three parental lines, namely the ILS2 and ILS7 females and the ILW1 male, showed the highest positive GCA effects on yield-related traits, making them desirable for developing high-yielding hybrids. Meanwhile, five parental lines, namely the ILS3, ILS5, and ILS7 females and the ILW1 and ILW2 males, were favorable general combiners for high carotenoids. A tested hybrid, ILS2 × ILW1, was a candidate biofortified sweet–waxy corn hybrid possessing high yields and carotenoids. Heterosis and per se performance were more positively correlated with GCAsum than SCA, indicating that GCAsum can predict heterosis for improving biofortified sweet–waxy corn hybrid enriched in carotenoids. The breeding strategies of biofortified sweet–waxy corn hybrids with high yield and carotenoid content are discussed.

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Section: Discussionmentioning

confidence: 99%

The Combining Ability and Heterosis Analysis of Sweet–Waxy Corn Hybrids for Yield-Related Traits and Carotenoids

Prai-anun,

Jirakiattikul,

Suriharn

et al. 2024

Plants

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Initial material for waxy maize hybrids’ breeding

Ignatiev

Krivosheev

Lupinoga

2022

Zernovoe hozâjstvo Rossii

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A waxy maize variety differs from other varieties, as its grain contains only amylopectin starch, which is considered a very valuable product for use in food, technical industry, and medicine. An insufficient amount of initial material hinders the development of Russian waxy maize hybrids. The purpose of the current study was to develop and select self-pollinated lines that could be promising for breeding waxy starchy maize hybrids. The study was carried out in the FSBSI Agricultural Research Center “Donskoy” in 2019–2021. As the initial material there were used 54 new constant self-pollinated waxy maize lines, developed by the standard method. There have been identified such self-pollinated lines as 24/5, 24/18, 24/29(5), 24/78, 25/2(3), 26/8 with 68.1–70.2 % of amylopectin starch. The new lines were characterized by high values of the most important traits, namely seed productivity (0.91–1.75 t/ha), resistance to lodging (0–0.6 % of lodging plants), smut ‘virus’ infection (0–3.6 % of infected plants), low and medium harvesting moisture content of grain (14.7–16.3 %). The identified lines can be recommended for use in crossbreeding programs to develop new waxy maize hybrids. There has been established that amylopectin starch percentage in grain of self-pollinated maize lines negatively correlates with protein percentage (r = –0.55) and oil (r = –0.29), which must be taken into account when selecting for initial material. There has been established a mean positive correlation between starch percentage and seed productivity (r = 0.33) and number of cobs per 1 plant (r = 0.33). The selection of genotypes with high values of these traits has been recommended when developing a starchy initial material of waxy maize.

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Heritability of agronomic characters of Srikandi Putih x local waxy corn

Cited by 2 publications

References 6 publications

The Combining Ability and Heterosis Analysis of Sweet–Waxy Corn Hybrids for Yield-Related Traits and Carotenoids

The Combining Ability and Heterosis Analysis of Sweet–Waxy Corn Hybrids for Yield-Related Traits and Carotenoids

Initial material for waxy maize hybrids’ breeding

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