Expected response to early-generation selection for yield and tuber appearance traits in potatoes

The aim of this study was to evaluate the performance of potato clonal families, and to estimate genetic variance, heritability and the expected response to selection of tuber yield and appearance traits in early generations. Twelve potato families were obtained from crosses between two groups of ra...

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Main Authors: Vicenti Gonçalves Ney, Laerte Reis Terres, Giovani Olegário da Silva, Arione da Silva Pereira
Format: Article
Language:English
Published: Universidade Estadual de Londrina 2016-10-01
Series:Semina: Ciências Agrárias
Subjects:
Online Access:http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/18226
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author Vicenti Gonçalves Ney
Laerte Reis Terres
Giovani Olegário da Silva
Arione da Silva Pereira
author_facet Vicenti Gonçalves Ney
Laerte Reis Terres
Giovani Olegário da Silva
Arione da Silva Pereira
author_sort Vicenti Gonçalves Ney
collection DOAJ
description The aim of this study was to evaluate the performance of potato clonal families, and to estimate genetic variance, heritability and the expected response to selection of tuber yield and appearance traits in early generations. Twelve potato families were obtained from crosses between two groups of randomly-selected genotypes, including Eliza, C1730-7-94, and C-1742-8-95 in group 1; and Shepody, Asterix, Caesar, and White Lady in group 2. The crosses were made in factorial design (3 genotypes x4 genotypes), and each family consisted of 75 genotypes. Experiments were conducted in the fall of 2010, with a seedling generation under greenhouse conditions, and in the fall of 2011, with a clonal generation under field condition. High heritability estimates suggest that mild to moderate selection can be applied in the seedling generation to eye depth, eyebrow prominence, tuber curvature, flattening and shape uniformity. The C1742-8-95/White Lady stood out as a superior cross, as did all other crosses with White Lady, regarding tuber appearance and yield traits.
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spelling doaj.art-61c95935fac84239b385777d03340f9f2022-12-21T18:45:26ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-10-013752849285810.5433/1679-0359.2016v37n5p284914497Expected response to early-generation selection for yield and tuber appearance traits in potatoesVicenti Gonçalves Ney0Laerte Reis Terres1Giovani Olegário da Silva2Arione da Silva Pereira3Universidade Federal de PelotasUniversidade Federal de PelotasEmbrapa HortaliçasEmbrapa Clima TemperadoThe aim of this study was to evaluate the performance of potato clonal families, and to estimate genetic variance, heritability and the expected response to selection of tuber yield and appearance traits in early generations. Twelve potato families were obtained from crosses between two groups of randomly-selected genotypes, including Eliza, C1730-7-94, and C-1742-8-95 in group 1; and Shepody, Asterix, Caesar, and White Lady in group 2. The crosses were made in factorial design (3 genotypes x4 genotypes), and each family consisted of 75 genotypes. Experiments were conducted in the fall of 2010, with a seedling generation under greenhouse conditions, and in the fall of 2011, with a clonal generation under field condition. High heritability estimates suggest that mild to moderate selection can be applied in the seedling generation to eye depth, eyebrow prominence, tuber curvature, flattening and shape uniformity. The C1742-8-95/White Lady stood out as a superior cross, as did all other crosses with White Lady, regarding tuber appearance and yield traits.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/18226Solanum tuberosum LGeração de plântulaHerdabilidade.
spellingShingle Vicenti Gonçalves Ney
Laerte Reis Terres
Giovani Olegário da Silva
Arione da Silva Pereira
Expected response to early-generation selection for yield and tuber appearance traits in potatoes
Semina: Ciências Agrárias
Solanum tuberosum L
Geração de plântula
Herdabilidade.
title Expected response to early-generation selection for yield and tuber appearance traits in potatoes
title_full Expected response to early-generation selection for yield and tuber appearance traits in potatoes
title_fullStr Expected response to early-generation selection for yield and tuber appearance traits in potatoes
title_full_unstemmed Expected response to early-generation selection for yield and tuber appearance traits in potatoes
title_short Expected response to early-generation selection for yield and tuber appearance traits in potatoes
title_sort expected response to early generation selection for yield and tuber appearance traits in potatoes
topic Solanum tuberosum L
Geração de plântula
Herdabilidade.
url http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/18226
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