Resposta da laranjeira-pêra à adubação com nitrogênio, fósforo e potássio em um Latossolo Amarelo dos Tabuleiros Costeiros

Sobral, Lafayette Franco; Souza, L. F. da S.; Magalhaes, Antonia Fonseca de Jesus; Silva, José Unaldo Barbosa; Leal, M.D

doi:10.1590/s0100-204x2000000200009

Cited by 6 publications

(1 citation statement)

References 3 publications

(2 reference statements)

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“…One-year-old trees were planted in August 2009 at 6 × 3 m spacing (556 plants•ha -1 ) in a randomized block design with four replications and four plants per plot, managed without irrigation. Annually, all trees were fertilized according to recommendation for 'Pera' sweet oranges (Sobral et al 2000). At the 6 th year after planting (YAP), some leaves were removed from trees to determine the leaf nutrient content (Table 1).…”

Section: Methodsmentioning

confidence: 99%

Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress

et al. 2021

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The water deficit is one of the main limiting factors to the yield of sweet oranges. The present study aimed to determine alternative rootstocks to 'Rangpur' lime for 'Pera' sweet oranges grown on tropical hardsetting soils with greater potential tolerance to water deficit. Six citrus scion/rootstock combinations were grown during eight years in an orchard established in Sergipe, Brazil. The tree height, number of fruits per plant, cumulated fruit yield, leaf proline content and survival rate of trees were evaluated between 6 th and 8 th year after planting. Greater rate of tree loss occurred among the sweet orange onto 'Orlando' tangelo, which also induced the lowest cumulative fruit yield. After prolonged water deficit, moderate to high proline content was found in trees grafted on Sunki of Florida mandarin × C13 citrange -012° (TSKFL × CTC13-012), 'Orlando' tangelo, 'Indio' and 'Riverside' citrandarin. Conversely, after a short water deficit during the wet season, trees on 'San Diego' citrandarin and Rangpur lime clone of Centro Nacional de Pesquisa Mandioca e Fruticultura -CNPMF 03 'Rangpur' lime showed higher proline content. Trees onto TSKFL × CTC13-012 and 'Indio' also induced the greatest accumulated fruit yield at the 8 th year after planting. It is assumed that 'San Diego' and CNPMF 03 'Rangpur' induce response more quickly to water deficit, whereas TSKFL × CTC13-012 and 'Indio' are less susceptible to prolonged deficit. Therefore, trees on 'San Diego' and Indio citrandarin, CNPMF-03 'Rangpur' lime, TSKFL × CTC13-012 hybrid present greater potential to tolerate water deficit and produce more fruits on the hardsetting soils of the coastal tablelands of the Brazilian Northeast.

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Section: Methodsmentioning

confidence: 99%

Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress

et al. 2021

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Productive performance of ‘Pera’ sweet orange grafted onto 37 rootstocks in tropical cohesive soils under rainfed condition

Carvalho

Barros

et al. 2022

Scientia Horticulturae

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Fruit yield and quality of sweet oranges affected by nitrogen, phosphorus and potassium fertilization in tropical soils

Quaggio

Mattos

Cantarella

2006

Fruits

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Fruit yield and quality of sweet oranges affected by nitrogen, phosphorus and potassium fertilization in tropical soils.Abstract --Introduction. The objective of the present paper was to evaluate the effects of N, P and K, and their interactions, on fruit yield and quality of two sweet orange varieties, Valencia and Pêra, grown on tropical soils in the State of São Paulo, Brazil, over four seasons. Materials and methods. Two experiments were set up in a fractional factorial design of the ½ (4 × 4 × 4) type, with four rates of N [(30, 100, 170 and 240) . Pour cette même variable, la réponse à la fertilisation de ces deux cultivars avec P et K a dépendu de la disponibilité en éléments nutritifs de sol. Le calibre des fruits de Valencia a été nettement affecté par des doses de K supérieures à 225 kg·ha -1 . Le rendement en solides solubles par boîte de fruits (40,8 kg) a diminué en même temps que la teneur en K des feuilles variait de (10 à 12) g·kg -1 . Conclusion. Les analyses de sols et de feuilles ont un rôle déterminant sur la définition du rendement et de la qualité des agrumes. Les programmes nutritionnels optimaux peuvent varier selon que la récolte est destinée à l'industrie du jus ou au marché du fruit frais.Brésil / Citrus sinensis / besoin nutritionnel / fertilisation / dose d'application / rendement / qualité / fruits

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Resposta da laranjeira-pêra à adubação com nitrogênio, fósforo e potássio em um Latossolo Amarelo dos Tabuleiros Costeiros

Cited by 6 publications

References 3 publications

Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress

Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress

Productive performance of ‘Pera’ sweet orange grafted onto 37 rootstocks in tropical cohesive soils under rainfed condition

Fruit yield and quality of sweet oranges affected by nitrogen, phosphorus and potassium fertilization in tropical soils

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