scholarly journals Fruit quality of west indian cherry irrigated with saline waters under combinations of nitrogen/potassium fertilization

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Evandro Manoel Da Silva ◽  
Hans Raj Gheyi ◽  
Reginaldo Gomes Nobre ◽  
Joicy Lima Barbosa ◽  
Bárbara Genilze Figueiredo Lima Santos ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Irrigation Water ◽  
Block Design ◽  
Fruit Size ◽  
West Indian ◽  
Titratable Acidity ◽  
Fruit Shape ◽  
Soluble Solids ◽  
Potassium Fertilization

West Indian cherry stands out among the fruits cultivated for the pharmacological and alimentary importance, but its quality can be affected by irrigation water salinity and fertilization management. In this context, this research aimed to study the effect of irrigation water of different salinities and combinations of nitrogen and potassium fertilization on the physical and physico-chemical quality of bioactive compounds in West Indian cherry fruits. The experiment was carried out in the field, using lysimeters of 60 L, in the Experimental Area of the Centro de Ciências e Tecnologia Agroalimentar (CCTA) of Universidade Federal de Campina Grande (UFCG), Pombal, PB, in a randomized block design, with treatments arranged in a 5 x 4 factorial scheme, referring to five irrigation water salinities (ECw): 0.3, 1.3, 2.3, 3.3 and 4.3 dS m-1 and four combinations (C) of doses of nitrogen (N) and potassium (K2O): C1 = 70% N + 50% K2O; C2 = 100% N + 75% K2O; C3 = 130% N + 100% K2O and C4 = 160% N + 125% K2O, of the recommended dose for West Indian cherry, with three replicates and one plant per plot consisting of a lysimeter. The cv. Flor Branca grafted on cv. Junco was used in the study. The increase in salinity of irrigation water reduced the size, weight and vitamin C content of the fruits, but, the combinations of N and K fertilization did not affect fruit shape and the content of anthocyanin, carotenoids, pH, titratable acidity, total soluble solids and fruit flavor. Fertilization combinations consisting of C1 and C2 treatments promoted the largest fruit size under irrigation with ECw of up to 1.3 dS m-1 and greater mass accumulation. Fertilization doses above C2 combinations negatively affected fruit quality.

scholarly journals Fruit quality of West Indian cherry under saline water irrigation and nitrogen-potassium fertilization

2021 ◽  
Vol 25 (11) ◽  
pp. 741-749
Author(s):  
Cassiano N. de Lacerda ◽  
Geovani S. de Lima ◽  
Evandro M. da Silva ◽  
Reginaldo G. Nobre ◽  
Hans R. Gheyi ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
West Indian ◽  
Titratable Acidity ◽  
Limiting Factor ◽  
Potassium Fertilization ◽  
Randomized Block Design

ABSTRACT The presence of waters with high salt concentration stands out as a limiting factor for the quality of agricultural production. Thus, this study aimed to evaluate the fruit quality of West Indian cherry cv. Flor Branca, subjected to irrigation with water of different salinity levels and combinations of nitrogen-potassium fertilization, between 630 and 750 days after transplanting in the field. A randomized block design was used in a 5 × 4 factorial arrangement, with three replicates, whose treatments consisted of five values of electrical conductivies of irrigation water - ECw (0.3, 1.3, 2.3, 3.3 and 4.3 dS m-1) and four combinations of nitrogen and potassium fertilization (70-50, 100-75, 130-100 and 160-125% of recommendation of N and K2O, respectively). Electrical conductivity of irrigation water above 0.3 dS m-1 reduces the polar and equatorial diameters, hydrogen potential and flavonoid concentration and increases titratable acidity in West Indian cherry fruits. N-K2O combination of 70/50% of fertilizer recommendation reduces the effect of salt stress of irrigation water on the anthocyanin concentration in the fruits at ECw of 1.3 dS m-1 and ascorbic acid at ECw of 3.3 and 4.3 dS m-1.

scholarly journals Productivity, quality of fruits and architecture of Jalapeño pepper at different planting densities

2019 ◽  
Vol 37 (3) ◽  
pp. 331-337
Author(s):  
Carlos Francisco Ragassi ◽  
Juliana Zucolotto ◽  
Lucas M Gomes ◽  
Cláudia SC Ribeiro ◽  
Nuno Rodrigo Madeira ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Plant Architecture ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Randomized Complete Block Design ◽  
Total Titratable Acidity ◽  
Second Year ◽  
Increase In Productivity

ABSTRACT Mechanizing the harvest of Jalapeño pepper involves changes in the production system. Spacings between plants in rows (10 to 40 cm; 60 cm fixed between rows) were evaluated in relation to plant architecture, productivity and fruit quality of cultivar BRS Sarakura during three years, in a randomized complete block design with five replicates. Productivity (41.9 to 78.8 t ha-1) and plant height (40.1 to 47.3 cm) responded linearly to density; on the other hand, productivity per plant responded negatively (0.48 to 1.04 kg plant-1). The stem first bifurcation height was little influenced. Fruit chemical analyses were carried out in the second year of the experiment; spacing significantly influenced pH (5.36 to 4.84), total titratable acidity (TTA) (0.48 to 0.36%) and total soluble solids (TSS)/TTA ratio (11.5 to 15.6); no influence on TSS (5.65%) was noticed, though. The increase of plant population provided an increase in productivity without affecting fruit quality; the highest height of the first bifurcation achieved may not be enough to enable mechanized harvesting of the cultivar BRS Sarakura.

scholarly journals Pepino Dulce (Solanum muricatum Ait.) Quality Characteristics Respond to Nitrogen Nutrition and Salinity

1993 ◽  
Vol 118 (1) ◽  
pp. 86-91 ◽  
Author(s):  
D. Pluda ◽  
H.D. Rabinowitch ◽  
U. Kafkafi
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Nitrogen Nutrition ◽  
Fruit Size ◽  
Chloride Concentration ◽  
Fruit Shape ◽  
Quality Characteristics ◽  
Chloride Ions ◽  
Soluble Solids

The effect of fertigation with N-NO3 at 3, 6, or 12 mmol·liter-1, and 0, 3, or 6 dS·m-1 chloride ions on fruit quality of three pepino dulce selections was studied. Genotypes varied considerably in their response to mineral treatments in most quality characteristics. Variation in fruit size was greatly reduced when clusters were thinned to three fruit. Increasing chloride concentration in the nutrient soltuion reduced fruit size significantly and ascorbic acid concentration relative to the control, but fruit shape was not affected. Increases in NaCl salt, but not N concentration, resulted in significantly higher soluble solids concentration (SSC) and firmness in all three genotypes. Electrical conductivity, acidity, and pH were significantly affected by the two mineral treatments in the first trial, but remained unchanged in the second season. Fruit firmness, SSC, and acidity declined by 12% to 30%, whereas ascorbic acid content increased during 14 days storage at room temperature. These changes depended on genotype and environment during fruit growth and development. Organoleptic ratings were highest in salt-treated plants. Fruit quality of pepino dulce may be manipulated by crop management, thus improving its acceptability in Western markets.

scholarly journals Nutritional status, production and fruit quality of west indian cherry fertigated with nitrogen and humic substance

2020 ◽  
Vol 42 (2) ◽  
Author(s):  
Dayanne do Nascimento Dias ◽  
Karla dos Santos Melo de Sousa ◽  
Augusto Miguel Nascimento Lima ◽  
Ítalo Herbert Lucena Cavalcante ◽  
Laura Paula Araújo dos Santos ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Humic Substances ◽  
Fruit Quality ◽  
West Indian ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
N Availability ◽  
Production Cycles ◽  
Leaf N Content

Abstract Information on humic substances (HS) associated with nitrogen fertilization in West Indian cherry is scarce in the literature. The use of soil conditioners, such as HS, can increase the efficiency in the absorption of nutrients, especially N. Therefore, the present study aimed to evaluate, in two production cycles, the fruit quality, yield and nutritional status of West Indian cherry as a function of fertigation with nitrogen (N) and HS in Petrolina-PE, Brazil. The experimental design was in split plots, with treatments distributed in 5 x 2 strips, referring to N doses (50, 75, 100, 125 and 150% of the recommended dose) and HS application (without and with), respectively, with 4 replicates and 3 plants per plot. The N source used was urea (45% N) and the HS source used was the commercial product KS100 (Omnia®), from leonardite, monthly applied at dose of 6 g plant-1. Production, yield, indices of chlorophyll a, chlorophyll b and total chlorophyll, and leaf contents of N, P, K, Na, Ca, Mg, Fe, Mn and Zn were determined. Fruits were evaluated for: pH, vitamin C, soluble solids (SS), titratable acidity (TA) and SS/TA ratio. Except for leaf N content, which increased linearly with the applied doses, the leaf contents of nutrients, production and yield of West Indian cherry showed a stochastic pattern as a function of the increase in N availability and HS application. West Indian cherry plants cultivated and fertilized according to the recommendation for the crop did not respond to the evaluated treatments. Application of humic substances and N doses did not alter the post-harvest quality of West Indian cherry fruits.

scholarly journals QUALIDADE DE TOMATE EM FUNÇÃO DA SALINIDADE DA ÁGUA DE IRRIGAÇÃO E RELAÇÕES K/Ca VIA FERTIRRIGAÇÃO

Irriga ◽  
2018 ◽  
Vol 23 (1) ◽  
pp. 180-193
Author(s):  
Francisco Italo Gomes Paiva ◽  
Francisco De Assis de Oliveira ◽  
José Francismar de Medeiros ◽  
Ana Jacqueline de Oliveira Targino ◽  
Sandy Thomaz dos Santos ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Irrigation Water ◽  
Salt Water ◽  
Block Design ◽  
Soluble Solids ◽  
Water Salinity ◽  
Tomato Crop ◽  
Tomato Quality ◽  
Irrigation Water Salinity

QUALIDADE DE TOMATE EM FUNÇÃO DA SALINIDADE DA ÁGUA DE IRRIGAÇÃO E RELAÇÕES K/Ca VIA FERTIRRIGAÇÃO  FRANCISCO ITALO GOMES PAIVA1; FRANCISCO DE ASSIS DE OLIVEIRA2; JOSÉ FRANCISMAR DE MEDEIROS2; ANA JACQUELINE DE OLIVEIRA TARGINO1; SANDY THOMAZ DOS SANTOS2 E RICARDO CARLOS PEREIRA DA SILVA3 Programa de Pós-Graduação em Manejo de Solo e Água, Universidade Federal rural do Semi-Árido, UFERSA, Mossoró, RN. [email protected]; [email protected] Departamento de Ciências Agronômicas e Florestais, Universidade Federal rural do Semi-Árido, UFERSA, Mossoró, RN. [email protected]; [email protected]; [email protected] Programa de Pós-Graduação em Agronomia, Universidade Federal da Paraíba, Areia, PB. [email protected]   1 RESUMO A qualidade do tomate está diretamente relacionada com a qualidade da água utilizada na irrigação e com o suprimento adequado de nutrientes, principalmente o potássio e o cálcio. Este trabalho foi desenvolvido em ambiente protegido na UFERSA, em Mossoró, RN, com o objetivo avaliar a qualidade do tomate em função de diferentes relações iônicas de potássio e cálcio (K+/Ca2+), sendo: F1=1,5:1; F2=1,25:1; F3=1:1; F4=1:1,25 e F5=1:1,5 e quatro níveis de salinidade da água de irrigação (S1-0,5; S2-2,0; S3-3,5 e S4-5,0 dS m-1). O delineamento experimental utilizado foi em blocos casualizados, em esquema fatorial 5 x 4, totalizando 20 tratamentos, com quatro repetições. A relação K+/Ca2+=1:1 correspondente a concentração desses nutrientes recomendada para a cultura em cultivo de tomateiro hidropônico. Foram avaliadas as variáveis relacionadas a qualidade de frutos (sólidos solúveis, vitamina C, acidez titulável, pH e relação AT/SS). O uso de água com salinidade entre 2,0 e 3,5 dS m-1 aumenta a qualidade do tomate pelo aumento da razão SS/AT. As fertirrigações com maiores concentrações de K favorecem a qualidade dos frutos para salinidades até 3,5 dS m-1, mas não afetam a qualidade de tomate na salinidade 5,0 dS m-1. Palavras-chave: solanáceas, uso de águas salinas, potássio, cálcio  PAIVA, F. I. G; OLIVEIRA, F. A.; MEDEIROS, J. F.; TARGINO, A. J. O.; SANTOS, S. T.; SILVA, R. C. PQUALITY OF TOMATO AS FUNCTION OF IRRIGATION WATER SALINITY AND K/CA RATIO IN FERTIGATION  2 ABSTRACT The quality of tomato is directly related to the quality of the water used in irrigation and to the adequate supply of nutrients, mainly potassium and calcium. The objective of this work was to evaluate the quality of tomatoes as a function of the different ionic ratios of potassium and calcium (K+/ Ca2+), with: F1 = 1.5:1; F2 = 1.25:1; F3 = 1: 1; F4 = 1:1.25 and F5 = 1:1.5 and four irrigation water salinity levels (S1-0.5, S2-2.0, S3-3.5 and S4-5.0 dS m-1). The experimental design was a randomized complete block design in a 5 x 4 factorial scheme, totaling 20 treatments, with four replications. The K+/Ca2+ ratio = 1:1 corresponds to the concentration of these nutrients recommended for cultivation in a hydroponic tomato crop. The variables related to fruit quality (soluble solids, Vitamin C, titratable acidity, pH and AT / SS ratio) were evaluated. The use of water with salinity between 2.0 and 3.5 dS m-1 increases tomato quality by increasing the SS/AT ratio. Fertigation with higher concentrations of K favor fruit quality at salinity up to 3.5 dS m-1, but do not affect tomato quality at 5.0 dS m-1 salinity. Keywords: solanaceae, use of salt water, potassium, calcium

scholarly journals Potassium fertilization in pineapple fruit quality

2021 ◽  
Vol 43 (5) ◽  
Author(s):  
Jéssica Morais Cunha ◽  
Marta Simone Mendonça Freitas ◽  
Almy Junior Cordeiro de Carvalho ◽  
Luiz Carlos Santos Caetano ◽  
Marlene Evangelista Vieira ◽  
...  
Keyword(s):  
Vitamin C ◽  
Fruit Quality ◽  
Titratable Acidity ◽  
Field Conditions ◽  
Soluble Solids ◽  
Mineral Nutrient ◽  
Fruit Length ◽  
Potassium Fertilization ◽  
Pineapple Fruit

Abstract Potassium is a mineral nutrient that affects the growth and quality of pineapple fruits. This study aimed to evaluate the quality of ‘Vitória’ pineapple fruits submitted to application of potassium doses. The experiment was carried out from May 2017 to November 2018, in the municipality of São Francisco do Itabapoana (RJ), Brazil. The design was randomized blocks, with four replicates. Treatments were five K2O doses: 0; 6; 12; 18 and 24 g plant-1, applied as KCl, split into two applications after flower induction. Fruit and crown fresh masses, fruit and crown diameters, fruit and crown lengths, titratable acidity, soluble solids, vitamin C, juice pH and soluble solids/titratable acidity ratio were evaluated. Potassium fertilization promoted greater fruit length, diameter and mass. Titratable acidity, soluble solids and vitamin C values increased linearly as a function of potassium doses. Potassium fertilization improves the quality of ‘Vitória’ pineapple fruits under field conditions.

scholarly journals Perbaikan Kualitas Buah Jambu Biji (Psidium guajava L.) Kultivar Kristal dengan Berbagai Warna dan Bahan Pemberongsong

2017 ◽  
Vol 8 (3) ◽  
pp. 155
Author(s):  
Atika Romalasari ◽  
Slamet Susanto ◽  
Maya Melati ◽  
Ahmad Junaedi
Keyword(s):  
Fruit Quality ◽  
Block Design ◽  
Fruit Size ◽  
Growth Period ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Economic Losses ◽  
Fruit Peel ◽  
External Quality ◽  
Transparent Plastic

<p align="center"><strong><em>ABSTRACT <br /></em></strong></p><p><em>Kristal guava is one of the popular guava cultivars nowadays. The guava has white flesh and not-perfectly-round shaped that resembles a crystal and seedless. However, during the growth period fruit undergoes several physical and chemical changes and susceptible to insect infestation and other damage, all of which can reduce their commercial value and thus cause significant yield and economic losses. The aim of this research was to evaluate the influence of different color and bagging materials on guava fruit development and quality. The research was conducted at farmer farm located in Cikarawang Dramaga, from November 2013 to April 2014. This research was arranged in a randomized block design with one factor, consisted of ten treatments and five replications. The treatments were red plastic, yellow plastic, green plastic, blue plastic, sponnet with red plastic, sponnet with yellow plastic, sponnet with green plastic, sponnet with blue plastic, sponnet with transparent plastic and unbagged. Fruit quality assesment was conducted in Postharvest Laboratory of Agronomy and Horticulture Department, Bogor Agricultural University and Center for Tropical Horticultural Studies. The result showed that bagging improved fruit size, external quality and accelerated fruit maturity. Sponnet with red plastic bagging resulted in the biggest fruit at harvest. Sponnet with yellow or with red plastic baggings were able to maintain fruit peel smoothness up to 85%. Sponnet and plastic bagging resulted in better external quality than bagging with plastic only. Bagging did not show any effect on internal fruit quality.</em></p><p><em> </em></p><p><em>Keywords: colored bag, guava cv. Kristal, soluble solids content, sponnet, titratable acidity</em></p><p><em><br /></em></p><p align="center"><strong>ABSTRAK <br /></strong></p><p>Jambu ‘Kristal’ merupakan salah satu kultivar jambu biji yang sedang populer saat ini. Jambu Kristal memiliki daging buah berwarna putih, berbentuk bulat tidak beraturan serta berbiji sedikit. Selama pertumbuhan dan perkembangan buah mengalami berbagai perubahan fisik dan kimia dan rentan terhadap serangan hama, yang secara keseluruhan dapat mengurangi nilai komersial sehingga menyebabkan kehilangan yang signifikan dari segi hasil panen dan kerugian ekonomi. Tujuan dari penelitian ini adalah untuk menjelaskan pengaruh warna dan bahan pemberongsong terhadap perbaikan kualitas buah jambu ‘Kristal’. Penelitian dilaksanakan pada November 2013 sampai April 2014, di kebun petani yang berlokasi di Cikarawang, Dramaga, Bogor. Penelitian menggunakan Rancangan Acak Kelompok dengan satu faktor yaitu pemberongsongan buah, dengan sepuluh taraf dan lima ulangan. Perlakuan pemberonsongan menggunakan plastik merah, plastik kuning, plastik hijau, plastik biru, <em>sponnet </em>dan plastik merah, <em>sponnet</em> dan plastik kuning, <em>sponnet</em> dan plastik hijau, <em>sponnet</em> dan plastik biru, <em>sponnet</em> dan plastik bening serta tanpa pemberongsong. Pengujian kualitas buah dilakukan di Laboratorium Pascapanen Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor dan Laboratorium Pusat Kajian Hortikultura Tropika (PKHT) IPB. Hasil penelitian menunjukkan bahwa pemberongsongan memperbaiki pertumbuhan, kualitas eksternal dan mempercepat pematangan buah. Pemberongsongan <em>sponnet</em> dan plastik merah menghasilkan buah dengan ukuran terbesar pada saat panen. Pemberongsongan menggunakan <em>sponnet</em> dengan plastik kuning atau merah mampu menjaga kemulusan buah hingga 85%. Pemberongsongan <em>sponnet</em> dan plastik menghasilkan kualitas eksternal yang cenderung lebih baik dibandingkan pemberongsongan hanya dengan plastik. Pembrongsongan tidak berpengaruh nyata terhadap kualitas internal buah.</p><p>Kata kunci: asam tertitrasi total, jambu ‘Kristal’, <em>sponet</em>, padatan terlarut total, pemberongsong berwarna</p>

scholarly journals Effects of self and cross pollination on fruit set and fruit quality of sour cherry cultivars

2010 ◽  
Vol 16 (1) ◽  
Author(s):  
M. Ansari ◽  
G. H. Davarynejad ◽  
J. Tornyai ◽  
J. Nyéki ◽  
Z. Szabó ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Sweet Cherry ◽  
Fruit Set ◽  
Block Design ◽  
Fruit Size ◽  
Sour Cherry ◽  
Soluble Solids ◽  
Open Pollination ◽  
Self Pollination

An experiment conducted using factorial based on randomized completely block design during 2005 and 2006. Flowers of Érdi bőtermő, Érdi jubileum and Cigány meggy before anthesis and in balloon stages were isolated with paper bags from guest pollens and pollinated in appropriate time. The averages of final fruit set showed the advantage of open pollination (14.6% fruit set) in compare with artificial self pollination (13.0% fruit set) and natural self pollination (4.4% fruit set). Siah mashhad sweet cherry cultivar with more than 70% overlap of flowering and 9.8% fruit set in 2005 and 17.9% in 2006 was the best among applied pollinisers for Érdi bôtermô sour cherry cultivar.Also, Siah mashhad sweet cherry with more than 50%overlap of flowering time and 25.8%fruit set was the best polliniser for Cigány megg. Among the pollinisers, Siah mashhad was the best for Érdi jubileum with more than 50% overlap and 15.22% fruit set. Meanwhile, pollens of Siah mashhad caused the increase of fruit size in Cigány meggy cultivar. phenomenon. Pollens of Siah mashhad caused reduction in total soluble solids of Érdi bôtermô fruits, however, it does not have any significant effect on the acid rate of fruits.

scholarly journals EVALUATION OF YIELD AND FRUIT QUALITY OF SEVERAL ECOTYPES OF CORNELIAN CHERRY (Cornus mas L.) IN POLISH CONDIOTIONS

2019 ◽  
Vol 18 (6) ◽  
pp. 139-148
Author(s):  
Iwona Szot ◽  
Tomasz Lipa ◽  
Bożena Sosnowska
Keyword(s):  
Vitamin C ◽  
Fruit Quality ◽  
Titratable Acidity ◽  
Shape Index ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Cornelian Cherry ◽  
Cornus Mas

Cornelian cherry is a little-known plant that can be grown in Poland both on a commercial and amateur scale. The commercial cornelian cherry plantations should be established using selected cultivars or vegetatively propagated valuable ecotypes, as only this guarantees a uniform yield, maturation and standardization of fruit quality. The experiment was carried out in 2014 and 2015 in the private plantation of cornelian cherry (Cornus mas L.) located in Dąbrowica, near Lublin (22.454 N; 51.270 E). The subject of the research were ecotypes No.: 1, 2, 3, 4, 5, 6, 7, 10, 11, 14, 15 obtained as seedlings in 1998. Cornelian cherry plants obtained from seeds differed very much in the yield and quality of fruit. The fruit characteristics for the examined ecotypes ranged to 1.63–2.21 g for fruit weight, 1.30–1.61 for fruit shape index, 10.13–15.32% for content of stone, 17.85–22.68% for soluble solids content (SSC), 2.32–3.0% for titratable acidity (TA), 6.59–8.36 for SSC/TA, 54.9–75.97 for vitamin C content. Among the ecotypes studied in terms of external fruit features, ecotypes No. 3 and 4 were distinguished due to the largest fruits (mass and diameter) and relatively small share of the stone in the whole mass of the fruit. However, due to the chemical composition, the fruits of ecotype No. 5 were distinguished by the content of extract, extract to acids ratio, sugar, dry matter, anthocyanins and vitamin C content. These fruits enjoyed 55% strong acceptability among adults. The indicated ecotypes can be used in breeding as well as in nursery for obtaining valuable varieties of cornelian cherry for production in Poland.

scholarly journals Can Sustained Deficit Irrigation Save Water and Meet the Quality Characteristics of Mango?

Agriculture ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 448
Author(s):  
Leontina Lipan ◽  
Aarón A. Carbonell-Pedro ◽  
Belén Cárceles Rodríguez ◽  
Víctor Hugo Durán-Zuazo ◽  
Dionisio Franco Tarifa ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Deficit Irrigation ◽  
Block Design ◽  
Water Productivity ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Drought Tolerant ◽  
Randomized Block Design ◽  
Peel Color

Mango is one of the most cultivated tropical fruits worldwide and one of few drought-tolerant plants. Thus, in this study the effect of a sustained deficit irrigation (SDI) strategy on mango yield and quality was assessed with the aim of reducing irrigation water in mango crop. A randomized block design with four treatments was developed: (i) full irrigation (FI), assuring the crop’s water needs, and three levels of SDI receiving 75%, 50%, and 33% of irrigation water (SDI75, SDI50, and SDI33). Yield, morphology, color, titratable acidity (TA), total soluble solids (TSS), organic acids (OA), sugars, minerals, fiber, antioxidant activity (AA), and total phenolic content (TPC) were analyzed. The yield was reduced in SDI conditions (8%, 11%, and 20% for SDI75, SDI50, and SDI33, respectively), but the irrigation water productivity was higher in all SDI regimes. SDI significantly reduced the mango size, with SDI33 generating the smallest mangoes. Peel color significantly changed after 13 days of ripening, with SDI75 being the least ripe. The TA, AA, and citric acid were higher in SDI75, while the TPC and fiber increased in all SDI levels. Consequently, SDI reduced the mango size but increased the functionality of samples, without a severe detrimental effect on the yield.

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