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Estudo da retancha com enxertos prontos da casta Fernão Pires sob influência de métodos de plantação e enraizantes
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Advisor(s)
Abstract(s)
Este trabalho tem o objetivo de avaliar qual o método de retancha que mais se
adequa às condições e à região em que se insere. Como tal, verificaram-se as diferenças
entre os 3 métodos de plantação de videiras, nomeadamente, a plantação com broca,
plantação com ferro e, por último, plantação com hidroinjetor, averiguando em
simultâneo a influência dos enraizantes em cada um dos métodos.
As variáveis resposta avaliadas neste ensaio foram o comprimento e diâmetro dos
lançamentos e a área foliar das videiras, para as quais se fizeram várias medições ao longo
do ciclo vegetativo.
O ensaio experimental foi realizado numa parcela de vinha, propriedade da
empresa Falua, Sociedade de Vinhos, SA, situada nos Foros de Benfica, concelho de
Almeirim, no distrito de Santarém. A casta sobre a qual recaiu o ensaio foi o Fernão Pires,
sendo plantadas de forma aleatória e homogénea 63 plantas ao longo de 14 linhas. Em
cada método de plantação foram instaladas 21 plantas, subdivididas em 7 plantas sem a
presença de qualquer enraizante, 7 plantas na presença de “Tecnifol AntiOx Rootmax” e
7 plantas na presença de “Co-Actyl-H”.
Os resultados obtidos permitiram concluir que a aplicação de
bioestimulantes/enraizantes não levou a alterações significativas em qualquer das
características vegetativas avaliadas (variáveis resposta), comparativamente às videiras
não submetidas ao enraizante. Contudo, relativamente aos métodos de plantação, foi
possível verificar diferenças significativas em todas as medições do comprimento dos
lançamentos e na primeira medição da área foliar.
Este estudo permitiu concluir que o método de plantação mais vantajoso é a broca
pois proporcionou um maior desenvolvimento vegetativo, nomeadamente no
comprimento dos lançamentos e da área foliar. A plantação com a broca proporciona às
raízes uma camada de solo descompactado, arejado e livre de pedras e material lenhoso.
Do ponto de vista dos enraizantes, “Co-Actyl-H” obteve resultados bastante positivos
para as variáveis estudadas, expressando diferenças estatisticamente significativas entre
os métodos de plantação, broca e hidroinjetor. As retanchas com a utilização de ferro e
hidroinjetor demonstraram não ser muito eficazes neste tipo de solo, onde predomina o
calhau rolado, possivelmente por não proporcionarem aos porta enxertos um correto
aconchegamento.IX
A combinação do tipo de plantação com o enraizante utilizado permitiu concluir
que a modalidade “BTimac” foi a que apontou uma taxa de sucesso mais elevada perante
os fatores externos inerentes ao ensaio.
Palavras-ch
The aim of this work is to assess which method of planting is best suited to the conditions and the region in which it takes place. As such, the differences between the 3 methods of planting vines were checked, namely planting with augers, planting with an iron and, finally, planting with a hydroinjector, while also checking the influence of the rooting agents on each of the methods. The response variables evaluated in this trial were the length and diameter of the shoots and the leaf area of the vines, for which several measurements were taken throughout the growing season. The factors studied were the planting method and the rooting agent. The experimental trial was carried out on a plot of vines owned by the company Falua, Sociedade de Vinhos, SA, located in Foros de Benfica, in the municipality of Almeirim, in the district of Santarém. The grape variety used in the trial was Fernão Pires, and 63 plants were planted randomly and evenly along 14 rows. In each planting method, 21 plants were installed, subdivided into 7 plants without any rooting agent, 7 plants with "Tecnifol AntiOx Rootmax" and 7 plants with "Co-Actyl-H". The results showed that the application of biostimulants/rooting agents did not lead to significant changes in any of the vegetative characteristics evaluated (response variables), compared to the vines not subjected to rooting agents. However, with regard to potting methods, significant differences could be seen in all measurements of shoot length and in the first measurement of leaf area. This study led to the conclusion that the most advantageous planting method was the drill, as it provided greater vegetative development, particularly in terms of shoot length and leaf area. Planting with the auger provides the roots with a layer of uncompacted, aerated soil, free of stones and woody material. From the point of view of the rooting agents, “Co-Actyl-H” obtained very positive results for the variables studied, expressing statistically significant differences between the planting, auger and hydroinjector methods. Tapping using an iron and hydroinjector proved not to be very effective in this type of soil, where rolled pebbles predominate, possibly because they didn't provide the rootstocks with the correct lodging.XI The combination of the type of planting and the rooting agent used led to the conclusion that the "BTimac" method had the highest success rate in the face of the external factors inherent in the trial.
The aim of this work is to assess which method of planting is best suited to the conditions and the region in which it takes place. As such, the differences between the 3 methods of planting vines were checked, namely planting with augers, planting with an iron and, finally, planting with a hydroinjector, while also checking the influence of the rooting agents on each of the methods. The response variables evaluated in this trial were the length and diameter of the shoots and the leaf area of the vines, for which several measurements were taken throughout the growing season. The factors studied were the planting method and the rooting agent. The experimental trial was carried out on a plot of vines owned by the company Falua, Sociedade de Vinhos, SA, located in Foros de Benfica, in the municipality of Almeirim, in the district of Santarém. The grape variety used in the trial was Fernão Pires, and 63 plants were planted randomly and evenly along 14 rows. In each planting method, 21 plants were installed, subdivided into 7 plants without any rooting agent, 7 plants with "Tecnifol AntiOx Rootmax" and 7 plants with "Co-Actyl-H". The results showed that the application of biostimulants/rooting agents did not lead to significant changes in any of the vegetative characteristics evaluated (response variables), compared to the vines not subjected to rooting agents. However, with regard to potting methods, significant differences could be seen in all measurements of shoot length and in the first measurement of leaf area. This study led to the conclusion that the most advantageous planting method was the drill, as it provided greater vegetative development, particularly in terms of shoot length and leaf area. Planting with the auger provides the roots with a layer of uncompacted, aerated soil, free of stones and woody material. From the point of view of the rooting agents, “Co-Actyl-H” obtained very positive results for the variables studied, expressing statistically significant differences between the planting, auger and hydroinjector methods. Tapping using an iron and hydroinjector proved not to be very effective in this type of soil, where rolled pebbles predominate, possibly because they didn't provide the rootstocks with the correct lodging.XI The combination of the type of planting and the rooting agent used led to the conclusion that the "BTimac" method had the highest success rate in the face of the external factors inherent in the trial.
Description
Dissertação de Mestrado na área da Engenharia Agronómica, apresentada na Escola Superior Agrária de Santarém
Keywords
Vitis vinifera videira Fernão Pires retancha plantação comprimento diâmetro área foliar planting length diameter leaf area
Citation
Marcelino, João Filipe Pereira (2024).Estudo da retancha com enxertos prontos da casta Fernão Pires sob influência de métodos de plantação e enraizantes. Dissertação de Mestrado na área da Engenharia Agronómica, apresentada na Escola Superior Agrária de Santarém