Desordem Fisiológica E Produtividade De Mangueira Cv. Palmer Associada À Nutrição De Boro

Barbosa, Luirick Felix Silva; Cavalcante, Ítalo Herbert Lucena; Lima, Augusto Miguel Nascimento

doi:10.1590/0100-2945-273/14

Cited by 17 publications

(13 citation statements)

References 12 publications

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“…It is important to note that the excessive levels of leaf nutrients found in the present study did not reflect toxicity problems in the plants. As stated by Barbosa et al (2016), despite the valuable information contained in the reference values of the literature for the interpretation of leaf nutrient levels, success in the interpretation of these analyses is conditioned to the collection of reference standards that can be obtained under specific conditions of climate, soil type, and orchard management. Therefore, mango production under the conditions of the San Francisco Valley is different from that found in the reference value tables.…”

Section: Resultsmentioning

confidence: 99%

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

et al. 2021

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Understanding the relationship between the levels of nutrients in the soil and those found in the plant is of fundamental importance for site-specific fertility management in mango (Mangifera indica L.) crop fields. This study aimed to evaluate the spatial distribution of macronutrient contents both in the soil and in the leaf and their correlations in commercial mango orchards under semiarid region conditions and to delimit the management zones using soil and leaf data. The experiment was carried out in three commercial areas in San Francisco Valley, Brazil, cultivated with irrigated mango. Soil samples were collected in 0-0.2 and 0.2-0.4 m depths as well as leaf samples following sample grids. Ca, Mg, K, P, and N contents from soil and leaf samples were determined. Descriptive and geostatistics analyses were performed. Co-kriging was used for the delimitation of management zones. Positive spatial correlations were obtained between soil Ca2+ and leaf Ca contents (R2 = 0.80-0.93), soil K+ and leaf K contents (R2 = 0.35-0.61), and soil Mg2+ and leaf P contents (R2 = 0.51). Negative correlations were observed for soil Mg2+ and leaf Ca contents(R2 = 0.79-0.93) and soil Mg2+ and leaf K contents (R2 = 0.98). The soil 0-0.2 m depth had the greatest influence on mango Ca and K uptake. The negative correlation between soil Mg2+ and leaf Ca shows the competition existing in the plant uptake process. It was possible to delimit specific management zones using co-kriging for the three areas using soil and leaf data.

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Section: Resultsmentioning

confidence: 99%

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

et al. 2021

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“…The boron contents for all the treatments in 2016 were considered low (<50 mg · kg -1 ) and in 2017 considered excessive (>150 mg · kg -1 ) (Quaggio, 1996), although the plants did not present symptoms of toxicity; according to Silva et al (2014) boron deficiency reduces the intensity of flowering and pollination and negatively interferes with the absorption and use of calcium; the fruits tend to be smaller, which is reflected in low production. When evaluating different boron fertilization strategies in 'Palmer' mango trees to reduce the occurrence of physiological disorders, Barbosa et al (2016) obtained a 133% higher fruit yield in their most successful treatment compared with control.…”

Section: Discussionmentioning

confidence: 99%

“…The significant boron increases from 2016 to 2017, regardless of the treatment, is justified by the specific management of the nutrient adopted during the second cycle. The recommendations of Barbosa et al (2016) were followed: two fertigations with 50 g/plant of H 3 BO 3 plus five sprays with H 3 BO 3 , the first two (0.3%) and remaining (0.2%).…”

Section: Discussionmentioning

confidence: 99%

Biostimulants on Nutritional Status and Fruit Production of Mango ‘Kent’ in the Brazilian Semiarid Region

Lobo¹,

Cavalcante²,

Lima³

et al. 2019

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Adequate nutritional status is fundamental for the fruiting process of mango trees (Mangifera indica L.). In this context, plant biostimulants are substances that promote physiological and nutritional changes, benefiting production. The present study evaluated the effect of biostimulants on the nutritional status and fruit production of ‘Kent’ mango trees. The experiment was carried out in the Brazilian semiarid region over 2 consecutive years, 2016 and 2017. Leaf treatments with biostimulants were applied in three phases (preflowering, beginning of flowering, and full flowering) during both seasons. The treatments were as follows: T1) control (without biostimulants); T2) biostimulants containing nutrients and L-α-amino acids; T3) biostimulants containing nutrients and Lithothamnium algae extract; T4) biostimulants containing nutrients and sucrose; and T5) biostimulants containing nutrients, free amino acids, and Lithothamnium algae extract. The results show that there was no effect of the biostimulants for chlorophyll a, b, and total indices or for total leaf soluble carbohydrates. Some of the treatments affected the leaf concentrations of N, K, Mn, Fe, and Zn, whereas only T2 in 2016 and T5 in 2017 increased the number of fruits per panicle if compared with nontreated plants. In 2016, the production per tree was higher in T5 compared with the other treatments, whereas it was greater in 2017 in both T2 and T5 with increases of 37.4 and 23.1 kg per tree, respectively, compared with the control treatment. Biostimulants containing soluble nutrients, L-α-amino acids, free amino acids, and Lithothamnium algae extract benefit the nutritional status and increase the fruit production of mango ‘Kent’.

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“…The plants, at spacing of 10.0 m between rows and 5.0 m between plants, were submitted to daily irrigation by micro sprinkler, with two emitters per plant and a flow rate of approximately 40 L h -1 each. Management practices such as weed and phytosanitary control, use of the growth regulator paclobutrazol (PBZ) (28.1 mL per plant of Cultar ® ), and dormancy break (potassium nitrate and calcium nitrate at 3.0%) were carried out every seven days, as recommended by Albuquerque, Medina and Mouco (2002), while fertilizing management was carried out via fertigation according to plant demand (SILVA et al, 2002;BARBOSA;CAVALCANTE;LIMA, 2016). The production pruning was carried out mechanically, while manual tip pruning was performed to synchronize the vegetative canopy flushes.…”

Section: Methodsmentioning

confidence: 99%

Leaf Gas Exchange and Flowering of Mango Sprayed With Biostimulant in Semi-Arid Region

et al. 2020

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ABSTRACT The aim of the present study was to evaluate the effect of biostimulant containing amino acids and yeast extract on the physiological and reproductive characteristics of mango cv. Tommy Atkins during the shoot maturation phase in tropical semi-arid region. The experimental design consisted of randomized blocks with five treatments, five replications and five plants per plot. Treatments consisted of: T1) two foliar sprays with [biostimulant + KCl] + two foliar sprays with K2SO4; T2) No biostimulant and four foliar sprays with K2SO4; T3) three individual foliar sprays with biostimulant and one foliar spray with K2SO4; T4) two foliar sprays with biostimulant and two foliar sprays with K2SO4; and T5) two foliar sprays with [biostimulant + K2SO4] + one foliar spray with K2SO4. There is a positive effect of the biostimulant containing amino acids and yeast extract on transpiration, internal CO2 concentration, water-use efficiency and number of reproductive and non-differentiated shoots of mango cv. Tommy Atkins cultivated under tropical semi-arid condition, with attenuating effect on plant abiotic stress. For shoot maturation of mango cv. Tommy Atkins, three foliar sprays with biostimulant containing amino acids and yeast extract (10 mL per plant) and one with K2SO4 (3%), starting at 45 days after paclobutrazol application (T3), can be recommended.

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Desordem Fisiológica E Produtividade De Mangueira Cv. Palmer Associada À Nutrição De Boro

Cited by 17 publications

References 12 publications

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

Biostimulants on Nutritional Status and Fruit Production of Mango ‘Kent’ in the Brazilian Semiarid Region

Leaf Gas Exchange and Flowering of Mango Sprayed With Biostimulant in Semi-Arid Region

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