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Embryo rescue from interspecific crosses in apple rootstocks PAB
Dantas,Adriana Cibele de Mesquita; Boneti,José Itamar; Nodari,Rubens Onofre; Guerra,Miguel Pedro.
The objetive of this work was to rescue immature embryos of apple rootstocks Malus prunifolia (Marubakaido) and Malus pumila (M9) after 40-60 days of pollination and to put them into MS culture media supplemented with agar (6 g L-1) and casein hydrolysate (500 mg L-1). Embryos originated from interspecific crosses and open pollination showed differences in the in vitro responses, depending on the female parent, the developmental stage of the embryo, and the culture medium composition. Embryos of the M. pumila rootstock, rescued within 40 days after pollination and put in culture medium supplemented with indolacetic acid (IAA), gibberellic acid (GA3), kinetin and maltose, resulted in a normal development of plantlets. However, embryos originating from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malus; Marubakaido; M9; Culture medium; Carbon source.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000600011
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Yield efficiency for nine apple cultivars grafted on two rootstocks Ciência Rural
Fioravanço,João Caetano; Czermainski,Ana Beatriz Costa; Oliveira,Paulo Ricardo Dias de.
ABSTRACT: Currently, using smaller trees is one of the most important trends in apple cultivation. It is expected that reduced size plants produce lower amount of fruit, but with high yield and yield efficiency. The aim of this study was to evaluate the yield efficiency (YE) of nine apple tree cultivars, grafted on two rootstocks, from the second to the seventh year after planting. The YE indexes oscillated from one to the other year, regardless of rootstock. Correlations between YE and yield per tree and between YE and trunk cross sectional area (TCSA) confirmed that efficiency can be increased by the production increment or by the plant's vigor reduction. The usefulness of cumulative YE (ƩYE) is highlighted to compare apple tree cultivars after the third...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malus x domestica; M-9; Marubakaido; Production; Vigor.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001701
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