Effect of Rootstock on Red Colour of Bi-Coloured 'Forelle' Pears

Roberts, S. C.; Steyn, Willem J.; North, None

doi:10.17660/actahortic.2008.800.83

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These differences may be related to the warmer conditions in the spring and summer in the state of Paraná, but the quince rootstock could also modify fruit maturity. Robert et al (2008) verified that pears 'Forelle' showed lower fresh firmness and higher soluble solids content when the trees were grafted on 'A' and 'C' quince rootstocks.…”

Section: Resultsmentioning

confidence: 78%

Quince 'CPP': new dwarf rootstock for pear trees on organic and high density planting

et al. 2012

View full text Add to dashboard Cite

ABSTRACT-In Brazil, pear production presents the same incipient situation over the last 15 years, due mostly to low production technology. In this context, this study aimed to evaluate the development, growth and production of the pear tree cultivars Cascatense, Tenra and Hosui grafted on 'CPP' quince rootstock, using 'FT' pear as interstem. This trial was carried out in Guarapuava, State of Paraná, Southern region of Brazil, by five productive cycles. The pear trees were planted in September of 2004, spaced at 1.0 x 4.0 m (2,500 trees ha -1 ), trained to the modified central leader, on a Four-wire trellis, with drip irrigation and cultivated under organic production system. The following variables were evaluated: sprouting, anthesis, yield, fruit weight, soluble solids content, titratable acidity, pulp firmness, canopy area per plant and per hectare and trunk diameter. The pear tree cv. Tenra was outstanding most of the years for fruit yield, and, consequently, showed the highest accumulated yield over the period (51.6 t ha -1 ), followed by the cultivars Cascatense (39.7 t ha -1 ) and Hosui (18.7 t ha -1 ). All pear cultivars presented suitable physical-chemical characteristics for commercial purposes, with minimal average soluble solids content of 11% at harvest. The maximum canopy area per hectare was attained for cv. Cascatense (3063.2 m 2 ), that was considered insufficient for a high yield. These results suggest the needs for studies with higher density planting and other training systems, searching optimize canopy volume. One of the most limiting factors in the organic pear orchard was the incidence of pear dieback caused by Botriosphaeria dothidea, severe more often in pear trees cv. Hosui. Index terms: Pyrus spp., Cydonia oblonga, agroecology, phenology, deciduous fruits. MARMELEIRO 'CPP': NOVO PORTA-ENXERTO ANÃO PARA PEREIRAS EM PLANTIOS ORGÂNICOS E EM ALTA DENSIDADERESUMO -No Brasil, a produção de peras apresenta a mesma situação incipiente dos últimos 15 anos, devido principalmente à baixa tecnologia de produção. Neste contexto, o objetivo do presente trabalho foi avaliar o crescimento, o desenvolvimento e a produção das cultivares de pereira Cascatense, Tenra e Hosui enxertadas sobre o porta-enxerto marmeleiro 'CPP', utilizando como interenxerto a pereira 'FT'. O experimento foi conduzido em Guarapuava, Paraná, por cinco ciclos produtivos. As pereiras foram plantadas em setembro de 2004, espaçadas em 1,0 x 4,0 m (2.500 plantas ha -1 ), conduzidas em sistema de líder central modificado, em espaldeira com quatro fios, irrigação por gotejamento e sistema de produção orgânica. As seguintes variáveis foram avaliadas: brotação, florescimento, produtividade, massa dos frutos, teor de sólidos solúveis, acidez titulável, firmeza da polpa, área da copa por planta e por hectare, e diâmetro do tronco. A pereira cv. Tenra foi superior na maioria dos anos para a produção de frutos e, consequentemente, apresentou a maior produtividade acumulada no período (51,6 t ha -1 ), seguida pelas cultivares Cascatense (39,7...

show abstract

Section: Resultsmentioning

confidence: 78%