Data/hora: 12/06/2024 11:17:03

Provedor de dados: | Revista Brasileira de Fruticultura
País: | Brazil
Título: | Peroxidase activity and initial growth of ‘Barbosa’ peach on clonal rootstocks
Autores: | Oldoni,Chirlene Márcia; Nienow,Alexandre Augusto; Schons,Jurema; Mayer,Newton Alex.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Prunus persica (L.) Batsch; Graft; Graft compatibility.
Resumo: | Abstract  In the peach nursery trees production, the use of rootstocks with unknown genetic identity obtained from peach seeds in the canning industry is frequent. The hypothesis tested was that there are rootstocks that express greater graft compatibility, enabling greater survival and growth, and that peroxidase activity can be used as indication of graft incompatibility. The aim of this study was to evaluate the survival and the peroxidase activity efficiency in identifying graft incompatibility and the trunk diameter growth of ‘Barbosa’ peach grafted onto 18 Prunus clonal rootstocks, propagated by herbaceous cuttings, compared to own-rooted scion trees. The experimental design was three randomized blocks, with one tree per plot. The first three vegetative cycles of trees conducted in double Y (5.0m x 2.0m) without irrigation were evaluated. The highest trunk diameter growth was provided by ‘Okinawa’, ‘Tsukuba-1’, ‘Tsukuba-2’, Mexico F1 and ‘Flordaguard’ rootstocks, without differing from own-rooted ‘Barbosa’ peach. Peroxidase activity differs by rootstock effect at the beginning of the dormancy period, and is higher than in vegetative growth, especially in interspecific graft combinations. Peroxidase activity is a biochemical indicator of stress, but should not be used alone and generalized to characterize graft incompatibility.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000601001
Editor: | Sociedade Brasileira de Fruticultura
Relação: | 10.1590/0100-29452019086
Formato: | text/html
Fonte: | Revista Brasileira de Fruticultura  v.41 n.6 2019
Fonte: | info:eu-repo/semantics/openAccess