Carbohydrate levels in the leaves and production consistency of the Ponkan tangerine when thinned out with Ethephon

Moreira, Rodrigo Amato; Ramos, José Darlan; Cruz, Maria do Céu Monteiro da; Pantoja, Lílian de Araújo; Santos, Alexandre Soares dos

doi:10.1590/s1806-66902013000300020

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…This phenomenon was also reported in other fruit crops such as pear, apple and olive [23][24][25]. The major reason for this could be related to the alternate bearing phenomenon [26], which is an important factor affecting the fluctuation of citrus production [27] that is higher in one season than in the next season [8]. In high fruit loading condition, the nutrients and carbohydrates in new shoots were over mobilized into fruit part [28], leading to less nutrient accumulation in new shoots and hindering flower differentiation and yield formation in next season [29].…”

Section: Citrus Production Under Different Yield Levelssupporting

confidence: 52%

“…For example, nitrogen (N) and potassium (K) are the two 2 of 11 most accumulated nutrients in citrus fruits [4]; phosphate (P) promotes the growth of citrus trees [5]; and calcium (Ca) reduces the effects of copper stress on citrus roots and leaves [6], magnesium (Mg) deficiency induces swelling, cracking and lignification of leaf veins [7]. In addition, the alternate bearing phenomenon of citrus trees is also closely related to nutrient demand and distribution, which seriously affect the citrus yield [8,9]. Therefore, how to obtain sustained high yields is still unresolved [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Fruit Yields Depend on Biomass and Nutrient Accumulations in New Shoots of Citrus Trees

et al. 2020

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New shoots (including newly formed leaves and twigs) and fruits of citrus tree are key organs for present yield formation and flower differentiation in the next season, but the relationship between yield fluctuation and accumulations of major nutrients in new shoots and fruits of citrus tree is still unclear. Thus, to quantify the biomass and mineral nutrient accumulation in new shoots and fruits of citrus trees under varied yield levels has essential significance for rational fertilization and pruning management for citrus orchards. The purpose of this study was, therefore, to investigate the accumulation of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg), and the distribution of biomass in new shoots and fruits of citrus trees under low, medium and high-yield levels in each of eight orchards located in Chongqing, China. The results showed that substantial variation of fruit yield was observed in all eight orchards with an average yield of 15.0 (low), 30.9 (medium) and 60.1 (high) kg/plant. The averaged biomass of new shoots ranged from 1.59 to 2.51 kg/plant, which was significantly and positively correlated with fruit yield. Nutrient accumulation in leaves was generally highest among new organs, while more than half of N (52.70–71.4%), P (66.5–80.4%) and K (68.9–85.9%) accumulated in fruit. Fruit yields closely correlated with total amounts of major nutrients in new shoots. Furthermore, the nutrient requirements per unit of newly developed shoots and fruits were gradually decreased with increased yield, but the removed nutrients per ton of fresh fruit were almost stable, indicating that more nutrients were distributed into fruit tissues. Taken together, these findings are valuable for optimizing nutrient and pruning management in citrus orchards in China and other similar countries.

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Section: Citrus Production Under Different Yield Levelssupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Fruit Yields Depend on Biomass and Nutrient Accumulations in New Shoots of Citrus Trees

et al. 2020

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“…Produz frutos grandes, com casca solta e que amadurecem de maio a julho em Santa Catarina (Koller & Soprano, 2013). A produtividade pode atingir 50 t ha -1 em anos isolados, dependendo do manejo e da ocorrência de alternância de produção (ano de pouca carga após ano de carga excessiva) (Mendonça et al, 2008;Moreira et al, 2013). As plantas são produtivas, com copa de porte médio e crescimento ereto (Pio et al, 2006 O porta-enxerto trifoliateiro Flying Dragon [Poncirus trifoliata (L.) Raf.…”

Section: Introductionunclassified

Viabilidade de redução do espaçamento de plantio da tangerineira Ponkan enxertada em trifoliateiro Flying Dragon

Brugnara¹,

Sabião²

2022

Citrus Res. Technol.

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Effects of alternate bearing and 2,4-D application on fruit growth pattern, abscission enzymes activity, ACC content of calyx and carbohydrates partitioning of fruits in Satsuma mandarin ( Citrus unshiu Marc.) cv. Miyagawa

Adouli

Zamani

Fattahi-Mohgadam

et al. 2018

Scientia Horticulturae

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Carbohydrate levels in the leaves and production consistency of the Ponkan tangerine when thinned out with Ethephon

Cited by 5 publications

References 20 publications

Fruit Yields Depend on Biomass and Nutrient Accumulations in New Shoots of Citrus Trees

Fruit Yields Depend on Biomass and Nutrient Accumulations in New Shoots of Citrus Trees

Viabilidade de redução do espaçamento de plantio da tangerineira Ponkan enxertada em trifoliateiro Flying Dragon

Effects of alternate bearing and 2,4-D application on fruit growth pattern, abscission enzymes activity, ACC content of calyx and carbohydrates partitioning of fruits in Satsuma mandarin ( Citrus unshiu Marc.) cv. Miyagawa

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