Root systems of peanut cultivars respond differently to soil P availability to improve P uptake

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Western São Paulo-
Autor(es): dc.creatorCordeiro, Carlos Felipe dos Santos-
Autor(es): dc.creatorEcher, Fábio Rafael-
Autor(es): dc.creatorRosolem, Ciro Antonio-
Data de aceite: dc.date.accessioned2025-08-21T17:46:49Z-
Data de disponibilização: dc.date.available2025-08-21T17:46:49Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/jpln.202300144-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/307027-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/307027-
Descrição: dc.descriptionBackground: Peanut (Arachis hypogaea L.) is regarded as a crop with high nutrient use efficiency, but there may be differences between cultivars. Furthermore, there is little information on the strategy of peanut cultivars to adapt to soil P availability and to what extent they explore non-labile P pools. Aims: Our objective was to evaluate growth, root morphology, enzymatic activity in the rhizosphere, and P uptake of peanut cultivars grown under different soil P status. Methods: The study was conducted in a greenhouse in 6-L pots. Soils with low P (without fertilization) and high P content (with fertilization) and seven peanut cultivars of different origins, different maturation groups, and release years were investigated. Peanut shoot yield, phosphorus uptake, root growth, soil P fractions as well as phosphatase activity in the rhizosphere soil were determined. Results: In P-deficient soil, a higher dry matter yield was associated with longer root hairs and root length, which resulted in decreased soil non-labile P was observed mainly with cultivars developed in Argentina (ARG-medium-old and ARG-medium-new) and the late maturity Brazilian cultivar (BR I-late new). These cultivars adapted well to P deficiency and were less dependent on labile P. New Brazilian early and medium maturity cultivars developed less, shorter root hairs, and showed low acid phosphatase activity in the rhizosphere under P deficiency, resulting in lower P uptake and dry matter yield. Under high P availability, new Brazilian cultivars of medium and late maturity showed the highest dry matter yield (9.0 and 9.8 g plant−1, respectively) and longest roots, around 120 m plant−1. High P availability decreased root hairs in all cultivars. Conclusion: Overall, the adaptation of peanut cultivars to P-deficient soils was lower for the new mid- and early-maturing Brazilian cultivars compared with the Argentinian and old or late-maturing Brazilian cultivars. The main strategies of P-efficient cultivars under low P availability are to increase root length, root hair length, and root hair density.-
Descrição: dc.descriptionDepartment of Crop Sciences School of Agricultural Sciences São Paulo State University, São Paulo-
Descrição: dc.descriptionDepartment of Agronomy College of Agricultural Sciences University of Western São Paulo, São Paulo-
Descrição: dc.descriptionDepartment of Crop Sciences School of Agricultural Sciences São Paulo State University, São Paulo-
Formato: dc.format484-493-
Idioma: dc.languageen-
Relação: dc.relationJournal of Plant Nutrition and Soil Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectacid phosphatase activity-
Palavras-chave: dc.subjectphosphorus availability-
Palavras-chave: dc.subjectphosphorus uptake-
Palavras-chave: dc.subjectroot hair density-
Palavras-chave: dc.subjectroot hair length-
Palavras-chave: dc.subjectroot length-
Título: dc.titleRoot systems of peanut cultivars respond differently to soil P availability to improve P uptake-
Tipo de arquivo: dc.typelivro digital-
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