UENF SD 08 and UENF SD 09: Super-sweet corn hybrids for Northern Rio de Janeiro, Brazil

Pereira, Messias Gonzaga; Gonçalves, Gabriel Moreno Bernardo; Durães, Nayara Norrene Lacerda; Crevelari, Jocarla Ambrosim; Júnior, José Arantes Ferreira; Entringer, Geovana Cremonini

doi:10.1590/1984-70332019v19n2c33

Cited by 5 publications

(8 citation statements)

References 8 publications

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“…However, since the genetic variation of the available germplasm was not appropriate, external sources of genetic diversity are required. Pereira et al [250] described the main traits of two supersweet corn cultivars, which produced higher yields than the control cultivar in northern and northwestern Rio de Janeiro State (Brazil). Soare et al [251] studied sweet corn hybrids cultivated in Romania for identifying hybrids with good quantitative and qualitative yield.…”

Section: Variety Testingmentioning

confidence: 99%

Sweet Corn Research around the World 2015–2020

2021

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Modern sweet corn is distinguished from other vegetable corns by the presence of one or more recessive alleles within the maize endosperm starch synthesis pathway. This results in reduced starch content and increased sugar concentration when consumed fresh. Fresh sweet corn originated in the USA and has since been introduced in countries around the World with increasing popularity as a favored vegetable choice. Several reviews have been published recently on endosperm genetics, breeding, and physiology that focus on the basic biology and uses in the US. However, new questions concerning sustainability, environmental care, and climate change, along with the introduction of sweet corn in other countries have produced a variety of new uses and research activities. This review is a summary of the sweet corn research published during the five years preceding 2021.

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Section: Variety Testingmentioning

confidence: 99%

Sweet Corn Research around the World 2015–2020

2021

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“…Although the genetic basis of 'UENF SD 08' and UENF50611 is the same, except for the presence of the gene shrunken-2 (sh2), 'UENF SD 08' is a simple hybrid. It was generated from two lines and by backcrossing (Pereira et al, 2019b), whereas UENF50611 is an interpopulation hybrid, meaning that it was generated by crossing between two populations (Pereira et al, 2019a). Therefore, the presence of the mutant gene could allow different gene interactions to occur, which would modify the metabolism of the cultivar and consequently affect the synthesis of SM (Entringer et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…The super-sweet corn hybrid, 'UENF SD 08', resulting from genetic improvement research, at Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), was registered in 2018 at Registro Nacional de Cultivares of Ministry of Agriculture, Livestock and Supply (MAPA). Researches that have evaluated its agronomic characteristics have already been carried out (Pereira et al, 2019b). However, to aggregate knowledge to this cultivar, studies on its nutritional characteristics, levels of bioactive substances, and its antioxidant capacity are of great importance, for possible use in industry or even to encourage local production and trade.…”

Section: Introductionmentioning

confidence: 99%

Phenolic compounds, carotenoids, and antioxidant activity in a super-sweet corn hybrid

Cruz

Gonçalves

Glória

et al. 2022

Pesq. agropec. bras.

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The objective of this work was to determine the total carotenoids, total phenolics, and antioxidant activity of 'UENF SD 08' (super-sweet corn) and to compare them with those of 'UENF50611' (field corn). The total carotenoid content was determined according to Rodriguez-Amaya, the total phenolic content by the Folin-Ciocalteau method, and the antioxidant activity by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging method. For 'UENF SD 08', the average values were: 936.76±16.34 µg 100 g−1 for carotenoids, 346.0±3.80 mg 100 g−1 for phenolics, and 45.53±0.01% for antioxidant activity. For UENF50611, the average values were: 1,173.38±21.66 µg 100 g−1 for carotenoids, 563.33±7.97 mg 100 g−1 for phenolics, and 59.82±0.11% for antioxidant activity. UENF50611 showed a higher antioxidant activity observed due to its higher levels of carotenoids and phenolic compounds; however, the values observed for the 'UENF SD 08' super-sweet corn are within the ranges already described in the literature. 'UENF SD 08' contains a lower concentration of carotenoids and phenolic compounds than 'UENF50611', its nonmutant genetic background. However, the super-sweet corn 'UENF SD 08' has agronomic advantages, is considered a source of the evaluated secondary metabolites, and its consumption can contribute to a diet with a higher content of antioxidants.

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“…Currently, there are two groups for this specialty corn, identified as: Zea mays var saccharina, which covers registries of the late 1990s, when cultivars were classified as sweet corn, with 113 cultivars at the time of registration of variety BRS Deni; and the new group Zea mays L. saccharata Koem, of super-sweet cultivars (shrunken-2 genotype). Cultivars UENF SD 08 and UENF SD 09 were the first to be recorded in this group (Pereira et al 2019). It should be mentioned that the group Zea mays var saccharina contains cultivars classified as sweet and super-sweet, although the more recent group is being used exclusively for super-sweet cultivars.…”

Section: Introductionmentioning

confidence: 83%