Characterization of Prunus clonal rootstocks based on BRS Libra peach tree nutritional efficiency state

Rootstock contributes to increase the absorption and nutrients translocation efficiency. We aimed to characterize rootstocks according to the nutritional physiological state of the scion cultivar. The experiment was carried out during three periods of leaf collect on the 4-year old peach cv. BRS Lib...

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Bibliographic Details
Published in:Comunicata Scientiae 2023-01, Vol.14, p.1-8
Main Authors: dos Santos, Mateus Velho, Santana, Alice Silva, do Prado, Jean, Giacobbo, Clevison Luiz, Ferreira, Luana Oliverio, Uberti, Alison, Mattias, Jorge Luis, Galon, Leandro
Format: Article
Language:English
Subjects:
Absorption
Cultivars
Data collection
Efficiency
Fruit trees
Genotype & phenotype
Leaves
Mineral nutrients
Nutrient cycles
Nutrients
Nutritional status
Optimization
Orchards
Parameter estimation
Parameters
Physiology
Principal components analysis
Prunus
Rootstocks
Senescence
Translocation
Trees
Variance analysis
Water potential
Xylem
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Summary:Rootstock contributes to increase the absorption and nutrients translocation efficiency. We aimed to characterize rootstocks according to the nutritional physiological state of the scion cultivar. The experiment was carried out during three periods of leaf collect on the 4-year old peach cv. BRS Libra budded onto 21 rootstocks cultivated in a high density orchard. The following traits were evaluated: xylem water potential, dry leaf mass and chemical leaf nutritional analysis. The collected data were submitted to analysis of variance by the F test and some genetic parameters were estimated. When significant, the means were compared using the Scott-Knott test, at 5% significance. The principal component analysis was performed to verify the interrelationships between the rootstocks and the evaluated traits. The deviation from optimum percentage index was used to select the most nutritional stable rootstock. We observed that rootstock affects the dynamic absorption nutrient parameters in interactions with the scion. The highest foliar levels of P were found in the BRS Libra cultivar when budded onto the rootstocks 'Santa Rosa', 'Barrier', 'Tsukuba-1' and 'Rosaflor'. The leaf analysis revealed a high variation in the mineral nutritional status among the studied Prunus rootstocks. Most of the mineral macro-elements varied between medium and optimal levels. The rootstocks 'Rigitano' and 'Nemared' showed greater supply of nutrients to the canopy of 'BRS Libra'
ISSN:2179-9079
2177-5133
DOI:10.14295/CS.v14.3836