Potential of popcorn germplasm as a source of resistance to ear rot

Kurosawa, Railan do Nascimento Ferreira; Amaral, Antônio Teixeira do; Vivas, Janieli Maganha Silva; Guimarães, Amanda Gonçalves; Miranda, Samila Barbosa; Dias, Vicente Mussi; Scapim, Carlos Alberto

doi:10.1590/1678-4499.178

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…These lines are from the following genealogies: BRS-Angela, UENF 14, CMS-42, IAC 112, IAC 125, and PARA 172. From these populations, Kurosawa et al (2017) reported that PARA-172 is considered promising for resistance to NCLB and SCLB. The authors also reported the potential for resistance to SCLB in strains L61, L63, and P2.…”

Section: Resultsmentioning

confidence: 99%

“…The authors also reported the potential for resistance to SCLB in strains L61, L63, and P2. SCLB has not been extensively studied in popcorn, there are limited evaluations of scarce genotypes (Kurosawa et al, 2017;2020;Saluci et al, 2019). Therefore, the present study aimed to identify resistance to B. maydis (SCLB) in popcorn lines.…”

Section: Resultsmentioning

confidence: 99%

“…The group of lines with the lowest averages was developed from the genealogies CMS-42, IAC 112, UENF-14, IAC 125, PARA 172, PR-023, SE-023, and BRS-Angela. Few studies have investigated the resistance of popcorn to SCLB (Kurosawa et al, 2017;2020;Saluci et al, 2019). Among the aforementioned studies, only Kurosawa et al (2017) studied the resistance of strains and populations to B. maydis and indicated that populations ARZM-05083, ARZM-07049, and PARA-172 are a source of Acta Scientiarum.…”

Section: Resultsmentioning

confidence: 99%

“…Few studies have investigated the resistance of popcorn to SCLB (Kurosawa et al, 2017;2020;Saluci et al, 2019). Among the aforementioned studies, only Kurosawa et al (2017) studied the resistance of strains and populations to B. maydis and indicated that populations ARZM-05083, ARZM-07049, and PARA-172 are a source of Acta Scientiarum. Agronomy, v. 44, e55857, 2022 resistance to SCLB.…”

Section: Resultsmentioning

confidence: 99%

“…Several strategies have been utilized as control measures for these diseases; among which, the planting of resistant varieties is considered the most effective alternative, as their use does not generate additional costs for the producer and does not have a negative impact on the environment (Santos et al, 2016). For common corn, breeding programs aimed at resistance to leaf diseases have already been established; however, studies on special corns are lacking (Kurosawa et al, 2016;Kurosawa et al, 2017;Kurosawa et al, 2018). Therefore, the objective of the present study was to evaluate the incidence and severity of diseases in popcorn lines that have the potential for baby corn production.…”

Section: Introductionmentioning

confidence: 99%

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Resistance to multiple leaf diseases in popcorn lines with potential for baby corn production

et al. 2022

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The cultivation of special corns, such as baby corn, has had a positive influence on the economy of the country. Despite its importance, there is still a need for studies aimed at increasing production and planting areas of the crop. Phytosanitary studies are of particular interest, as the cultivation of such crops is susceptible to a series of pathogens, such as Bipolaris maydis, Exserohilum turcicum, and Puccinia polysora. The use of resistant cultivars is the most effective way to prevent the occurrence of these diseases. Thus, the present study aimed to identify popcorn lines that have the potential for baby corn production and are resistant to the main leaf diseases that affect the crop. The experiment was conducted in randomized blocks with four replications of 30 lines in each area, during two planting seasons. The area was located at the Federal Institute of Espírito Santo (IFES) Campus of Alegre, situated in Rive district, Espírito Santo State, Brazil. Using the obtained data, the area under the disease progress curve was obtained. Subsequently, analysis of the joint variance of the data was conducted, and when a significant effect was found, a grouping of means test was conducted. The Mahalanobis distance for each pair of lines was also calculated, and the genetic distance matrix was used to construct a dendrogram using the UPGMA method. Considering the averages obtained for the three diseases (Southern corn leaf blight, Northern corn leaf blight, and Southern rust), lines L61, L63, L65, L683, L684, L685, L691, L694, and L695 were identified as possible donors of resistance alleles for multiple diseases. Multivariate analysis efficiently grouped the lines L61, L63, L684, L685, and L691, which are described as most resistant in the univariate analysis.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%