Second Generation European Corn Borer Damage Relationships in Sweet Corn1

Andrew, R. H.; Mosely, P. R.

doi:10.2135/cropsci1980.0011183x002000050002x

Cited by 6 publications

(4 citation statements)

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“…When both effects were signiÞcant for the same trait, dominance effects were double the additive effects. In contrast, Andrew and Mosley (1980) and Joyce and Davis (1995) suggested that genetic variation for ear damage by O. nubilalis was most likely attributed to additive effects. Grier and Davis (1980) and Lamb et al (1994) also concluded that additivity was more important than dominance for O. nubilalis damage, although they found signiÞcant nonadditive effects in the inheritance of ear resistance.…”

Section: Resultsmentioning

confidence: 91%

Mean Generation Analysis of the Damage caused by Sesamia nonagrioides (Lepidoptera: Noctuidae) and Ostrinia nubilalis (Lepidoptera: Crambidae) in Sweet Corn Ears

Velasco¹,

Soengas²,

Revilla³

et al. 2004

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Sesamia nonagrioides (Lefebvre) and Ostrinia nubilalis (Hübner) are the main maize (Zea mays L.) pests in Mediterranean countries. To develop insect-resistant cultivars, it is helpful to know the genetic control of the resistance. Our objective was to determine the genetic control of the resistance to both borers. For each of two crosses (EP59 x P51 and 15125 x EP61), six generations were evaluated (P1, P2, F1, F2, BC1, and BC2). Genetic effects x environment interactions were not significant. For the O. nubilalis resistance traits; both crosses fitted an additive-dominance model. EP59 x P51 had important dominance and additive effects, whereas for 15125 x EP61 we did not detect significant genetic effects, but significant year effects were detected. For S. nonagrioides infestation, both crosses fitted to an additive-dominance model. There were additive effects for most traits in EP59 x P51. The cross I5125 x EP61 showed significant dominance effects for several traits. Resistance to both corn borers fit an additive-dominance model, but genetic effects depend on the cross evaluated. In the resistance to S. nonagrioides, additive effects were important for shank resistance, which is a useful trait for avoiding S. nonagrioides damage on the ear. Early sowings are recommended to make good use of the resistance to both corn borers. In the late sowings, damage is so high that resistant plants are not able to control the pest.

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Section: Resultsmentioning

confidence: 91%

Mean Generation Analysis of the Damage caused by Sesamia nonagrioides (Lepidoptera: Noctuidae) and Ostrinia nubilalis (Lepidoptera: Crambidae) in Sweet Corn Ears

Velasco¹,

Soengas²,

Revilla³

et al. 2004

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“…Ear resistance is a quantitative trait with inheritance largely additive (Andrew and Mosely 1980, Grier and Davis 1980, Joyce and Davis 1995. Andrew and Carlson (1976) concluded that damage caused by Þrst and second generations of European corn borer are not correlated because resistance for each generation is conferred by different mechanisms.…”

mentioning

confidence: 99%

Inheritance of Resistance to Ear Damage Caused by Sesamia nonagrioides (Lepidoptera: Noctuidae) in Maize

Cartea

Malvar

Vales

et al. 2001

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Sesamia nonagrioides Lefebvre is a major insect pest of maize (Zea mays L.) in northwestern Spain. The inheritance of ear resistance in field corn to this pest has not been studied. This work aims to determine the importance of genetic (additive, dominance, and epistatic effects) and environmental effects in the inheritance of ear resistance to S. nonagrioides. Three field corn inbreds (CM109, EP31, and EP42) were used as parents and two crosses (CM109 x EP31 and CM109 x EP42) were made. These inbreds show different ear resistance levels to S. nonagrioides, with CM109 more resistant than EP31 and EP42. For each cross, parents (P1, P2), F1, F2, and backcrosses to each parent (BC1 and BC2) were evaluated. Correlations among ear damage traits showed that general appearance of the ear should be useful indicator of ear resistance. Ear resistance was dominant to susceptibility and was transmitted from inbreds to their hybrids. The additive-dominance model fit the generation mean analysis for both crosses and the degree of genetic control varied depending on the cross and trait. For both crosses, additive and dominance effects were significant for most ear damage traits. Epistatic gene effects were significant for husk and shank damage, and gene effects for number and length of tunnels were not significant. Because ear resistance involved additive and dominance effects for this set of inbreds, breeding procedures based on both types of gene action should be effective.

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“…For the latter traits, the GCAs were larger than the SCA effects; therefore, additive effects were the most important in the inheritance of ear damage by ECB. Andrew and Mosley (1980) found that additive effects were the most important in the inheritance of ear resistance to ECB in sweet corn, although they detected SCA and genotype × environment interactions in some crosses. Lamb et al (1994) found that only GCA was significant in the inheritance of field corn ear resistance.…”

Section: Resultsmentioning

confidence: 99%

Ear Damage of Sweet Corn Inbreds and Their Hybrids under Multiple Corn Borer Infestation

et al. 2002

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In Mediterranean countries, the principal corn (Zea mays L.) pest is the pink stem borer (PSB) (Sesamia nonagrioides Lef.), followed in importance by the European corn borer (ECB) [Ostrinia nubilalis (Hübner)]. Our objective was to quantify injury by these pests in a set of inbreds that showed different levels of ear damage by the PSB in a previous study and in their hybrids. A diallel among seven sweet corn inbreds that varied for ear damage by PSB was evaluated in three environments under PSB and ECB infestations. The importance of general combining ability (GCA) and specific combining ability (SCA) for ear damage by corn borer was determined. Inbred parents were also tested under manual infestation conditions with both borers. There was variability for ear damage traits among sweet corn inbred lines, but none of them were completely resistant. General combining ability effects were significant for the general appearance of the ear, ears with damaged grain, and ears with damaged shanks under PSB infestation. Under PSB infestation, SCA was not significant for any trait. Most traits showed significant GCA effects under ECB infestation, although SCA effects were also important for some damage traits. The inbred EP61 could supply some favorable alleles because it showed negative and significant GCA effects for ear damage under infestation by both species. Inbreds EP59 and V7726 showed negative and significant GCA effects for ear damage by ECB. These inbreds could be included in a sweet corn synthetic population that would be improved to decrease ear damage by corn borers.

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Second Generation European Corn Borer Damage Relationships in Sweet Corn¹

Cited by 6 publications

References 0 publications

Mean Generation Analysis of the Damage caused by <I>Sesamia nonagrioides</I> (Lepidoptera: Noctuidae) and <I>Ostrinia nubilalis</I> (Lepidoptera: Crambidae) in Sweet Corn Ears

Mean Generation Analysis of the Damage caused by <I>Sesamia nonagrioides</I> (Lepidoptera: Noctuidae) and <I>Ostrinia nubilalis</I> (Lepidoptera: Crambidae) in Sweet Corn Ears

Inheritance of Resistance to Ear Damage Caused by <I>Sesamia nonagrioides</I> (Lepidoptera: Noctuidae) in Maize

Ear Damage of Sweet Corn Inbreds and Their Hybrids under Multiple Corn Borer Infestation

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