Estimation of genetic parameters and selection for rooting capacity in peach

被引：11

作者：

Alves Oliveira, Joao Alison ^{[1
]}

Bruckner, Claudio Horst ^{[1
]}

Pereira da Silva, Danielle Fabiola ^{[2
]}

Magalhaes dos Santos, Carlos Eduardo ^{[1
]}

Penso, Gener Augusto ^{[1
]}

Aquino, Cesar Fernandes ^{[3
]}

机构：

[1] Univ Fed Vicosa, Dept Fitotecnia, Ave PH Rolfs, BR-36570000 Vicosa, MG, Brazil

[2] Univ Fed Goias, BR-75804020 Jatai, Go, Brazil

[3] Univ Fed Oeste Bahia, BR-47100000 Barra, BA, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2018年 / 18卷 / 03期

关键词：

Prunus persica; Rootstock; REML/BLUP; Selection index; Cuttings; PLUM-BASED ROOTSTOCKS; BIG TOP NECTARINE; MEDITERRANEAN CONDITIONS; FRUIT-QUALITY; MIXED MODELS; YIELD; POPULATION; RESISTANCE; PROGENIES; HYBRIDS;

D O I：

10.1590/1984-70332018v18n3n47

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

One of the most important criteria in the improvement of rootstocks is easiness of propagation. The objective of the present study was to verify the existence of genetic variability and the possibility of gains with selection in the rooting capacity among peach genotypes. Seventy-seven genotypes of peach belonging to five F-3 families were evaluated. Rooting percentage (RP), number of roots per cutting (NR) and mean root length (RL) were evaluated. Genetic values were estimated. The nineteen genotypes with the lowest rank summation index were selected to estimate the genetic gains. The variables RP, NR and RL had progeny mean heritabilities of 0.53, 0.60 and 0.83, respectively. Of the individuals selected, 89.5% belonged to the 713 (Talisma x Adafuel) family. The estimation of the genetic and phenotypic parameters show the possibility of success by selecting superior genotypes, with gains of 9.09,17.47 and 24% for RP, NR and RL, respectively.

引用

页码：320 / 324

页数：5

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