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Insect Resistance and Horticultural Trait Genetic Values of Potato Families
Velci Queiróz de Souza,Arione da Silva Pereira,Giovani Olegário da Silva,Fernando Irajá Félix de Carvalho,Antônio Costa de Oliveira 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.1
This work aimed to evaluate 11 potato families for insect resistance horticultural traits. The families were derived from crosses between introduced insect resistant and adapted genotypes. A randomized complete block design, with three replications was used. The plot consisted of 25 genotypes of a family, summing up to 75 genotypes tested per family. Two susceptible cultivars were included in the experiment as controls. The genotypes were evaluated for insect resistance, tuber yield traits, tuber appearance, and tuber skin smoothness. The genetic value for the intensity of insect attack in the leaves and in the tubers was lower (higher resistance) in the 11 families than in the controls. For yield traits, there was no predominant effect among the families regarding the origin of the resistant donor species (Solanum berthaultii and/or S. chacoense). However, there was a large contribution of the C-1485-16- 87 recurrent parent in crosses with resistant genotypes for tuber yield and tuber number. In relation to tuber appearance, only the family derived form the C-1485-16-87/ND140 (S. berthaultii) cross did not differ from the controls. For tuber skin smoothness, the genetic values of the families did not significantly from each other or from the controls. This work aimed to evaluate 11 potato families for insect resistance horticultural traits. The families were derived from crosses between introduced insect resistant and adapted genotypes. A randomized complete block design, with three replications was used. The plot consisted of 25 genotypes of a family, summing up to 75 genotypes tested per family. Two susceptible cultivars were included in the experiment as controls. The genotypes were evaluated for insect resistance, tuber yield traits, tuber appearance, and tuber skin smoothness. The genetic value for the intensity of insect attack in the leaves and in the tubers was lower (higher resistance) in the 11 families than in the controls. For yield traits, there was no predominant effect among the families regarding the origin of the resistant donor species (Solanum berthaultii and/or S. chacoense). However, there was a large contribution of the C-1485-16- 87 recurrent parent in crosses with resistant genotypes for tuber yield and tuber number. In relation to tuber appearance, only the family derived form the C-1485-16-87/ND140 (S. berthaultii) cross did not differ from the controls. For tuber skin smoothness, the genetic values of the families did not significantly from each other or from the controls.
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Insect Resistance and Horticultural Trait Genetic Values of Potato Families
Souza, Velci Queiroz de,Pereira, Arione da Silva,Silva, Giovani Olegario da,Carvalho, Fernando Iraja Felix de,Oliveira, Antonio Costa de The Korean Society of Crop Science 2008 Journal of crop science and biotechnology Vol.11 No.1
This work aimed to evaluate 11 potato families for insect resistance horticultural traits. The families were derived from crosses between introduced insect resistant and adapted genotypes. A randomized complete block design, with three replications was used. The plot consisted of 25 genotypes of a family, summing up to 75 genotypes tested per family. Two susceptible cultivars were included in the experiment as checks. The genotypes were evaluated for insect resistance, tuber yield traits, tuber appearance and tuber skin smoothness. The genetic value for the intensity of insect attack in the leaves and in the tubers was lower(higher resistance) in the 11 families than in the checks. For yield traits, there was no predominant effect among the families regarding the origin of the resistant donor species(Solanum berthaultii and/or S. chacoense). However, there was a large contribution of the C-1485-16-87 recurrent parent in crosses with resistant genotypes for tuber yield and tuber number. In relation to tuber appearance, only the family derived form the C-1485-16-87/ ND140(S. berthaultii) cross did not differ from the checks. had genetic value tuber skin smoothness, it was identified that families derived from S. berthaultii resistant parents showed higher genetic values than the check cultivars. For tuber skin smoothness, the genetic values of the families neither differed significantly from each other nor from the checks.
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