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.

scholarly journals Production and quality of okra produced with mineral and organic fertilization

2019 ◽  
Vol 23 (2) ◽  
pp. 97-102
Author(s):  
Hemmannuella C. Santos ◽  
Emmanuel M. Pereira ◽  
Rafael L. S. de Medeiros ◽  
Paulo M. de A. Costa ◽  
Walter E. Pereira
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
Organic Compost

ABSTRACT Okra, Abelmoschus esculentus (L.) Moench, is a vegetable with annual fruit native to hot regions of Africa, well adapted to the conditions of the Northeast and Southeast regions of Brazil, where it is widely used by small farmers. This study aimed to evaluate the effect of mineral and organic fertilization on the production and quality of okra fruits. The experiment was conducted in randomized block design, with three replicates and eleven treatments defined according to a Baconian matrix. Treatments consisted of doses of N (0, 100, 200 and 300 kg ha-1), P (0, 100, 200 and 300 kg ha-1) and K (0, 80, 160 and 240 kg ha-1), as well as absence and presence of organic compost (30 t ha-1). The following parameters were evaluated: plant height, stem diameter, number of leaves, production of fruits plant-1, number of fruits plant-1, fruit length and diameter and fruit quality (pH, soluble solids, titratable acidity, vitamin C and electrical conductivity). The crop is demanding in terms of K and N fertilizations, with increments of 15.8 and 36% in the mean number and diameter of fruits, respectively. Organic fertilization did not influence the vegetative growth of okra, but was beneficial to the production of fruits with higher vitamin C content, 52% higher than the contents found in fruits produced without such input.

scholarly journals Effect of Integrated Nutrient Management on Fruit Yield and Quality of Peach (Prunus persica L. Batsch) cv. July Elberta

2020 ◽  
pp. 152-160
Author(s):  
S. P. S. Solanki ◽  
Naveen C. Sharma ◽  
J. S. Chandel ◽  
Debashish Hota
Keyword(s):  
Prunus Persica ◽  
Nutrient Management ◽  
Block Design ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Uniform Size ◽  
Randomized Block Design ◽  
Experimental Block ◽  
Old Trees

The present studies were carried out in Experimental Block, Department of Fruit Science, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during the year 2015-16. Nine years old trees of uniform size and vigour planted at 4.0 x 2.0 m spacing were selected for the studies. The experiment was laid out in a randomized block design with 11 treatments. The maximum increased in fruit set (87.70%) and yield (20.16 kg/tree) were observed significantly higher under 75% RDF + vermicompost 15 kg/tree. Maximum fruit length (64.06 mm), breadth (61.89 mm), fruit weight (129.51 g), total soluble solids (13.33 ºB) and total sugars (7.51%) were recorded under 75% RDF + vermicompost 15 kg/tree, however, highest fruit firmness (6.56 kg/cm2) and lowest titratable acidity (0.50%) were found with 4 applications of jeevamrut.

scholarly journals Quality of Italian tomatoes grown with different forms of calcium application

2020 ◽  
Vol 9 (12) ◽  
pp. e10191210837
Author(s):  
Isa Gabriela Vieira de Andrade ◽  
Gilmário Noberto de Souza ◽  
Eduardo Santana Aires ◽  
Ítala Laiane Silva Gomes ◽  
Ruy de Carvalho Rocha ◽  
...  
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Post Harvest ◽  
Randomized Block Design ◽  
Randomized Design ◽  
Tree Fruits ◽  
Fruit Mass

Tomato is one of the most consumed vegetables in the world. This work aimed to evaluate post-harvest quality of Italian Saladete tomatoes grown in a protected environment, with different ways of calcium application, in the Middle São Francisco Valley. Consisting of five Italian tomato hybrids (Anjico, Gabrielle, Liberty, Ty 2006 and Shanty), and three different ways of calcium application (T0 without application of calcium; T1 application of calcium in the opening flower, and T2 weekly application of calcium in the fruit).  Poductivity, average fruit mass, incidence of apical rot, fruit firmness, soluble solids (SS), titratable acidity (AT), and pH, were analized. The experimental design used was a completely randomized block design in a factorial scheme (five cultivars x three ways of calcium application), with three repetition and using two central plants as useful plot for analysis, except for fruit firmness that was carried out in a completely randomized design, using tree fruits per analysis. According to the results obtained, hybrids of Italian saladete tomatoes behaved in a satisfactory manner, therefore it is recommended to cultivate hybrids of Italian saladete tomatoes in the Middle São Francisco Valley, mainly hybrid Anjico. Calcium application way did not interfere with post-harvest attributes.

scholarly journals Agronomic performance of fig plants grown with different numbers of branches

2021 ◽  
Vol 48 (1) ◽  
pp. 14-20
Author(s):  
Vander Mendonça ◽  
◽  
Francisco Sidene Oliveira Silva ◽  
Anderson Araujo Alves ◽  
Elania Guadalupe Paiva Martins ◽  
...  
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Randomized Block Design ◽  
Maturation Index ◽  
Solids Content ◽  
Number Of Branches

Fig production and quality are associated with the number of branches per plant and may vary among regions according to the climatic conditions and crop management. In this work, we studied the influence of the number of branches per plant on the production and fruit quality of 'Roxo de Valinhos' figs under semiarid conditions. The experiment was carried out at the didactic orchard of Federal Rural University of Semiarid (UFERSA), Mossoró city, Rio Grande do Norte state, Brazil. Fig plants were grown with 6, 12, 18, or 30 branches in a completely randomized block design with four replicates and four plants per plot. Plants without thinning were also cultivated as controls. The number of fruits per plant, productivity, fruit length, fruit diameter, and fruit weight were evaluated. Additionally, fruit firmness, titratable acidity (TA), soluble solids content (SS), maturation index (SSC/TA), and vitamin C content were analyzed. The results showed that plants cultivated with 12, 18, and 24 branches produced fruits with higher weight, more fruits per branch, and more fruits per plant and thus were more productive. Additionally, fruits showed a high vitamin C content and maturation index

scholarly journals Effect of potassium fertilizers associated with cold storage on peach (Prunus persica L.) quality

2021 ◽  
pp. 319-324
Author(s):  
Caroline Farias Barreto ◽  
Letícia Vanni Ferreira ◽  
Renan Navroski ◽  
Jorge Atílio Benati ◽  
Rufino Fernando Flores Cantillano ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Mass Loss ◽  
Cold Storage ◽  
Prunus Persica ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Randomized Block Design ◽  
K Fertilization

Potassium (K) fertilization may affect peach quality and preservation. This study aimed at evaluating the effect of doses of K on physico-chemical and functional characteristics of ‘Sensação’ peaches in the postharvest period. Mass loss, pulp color, total soluble solids, titratable acidity, pH, pulp and skin firmness, total concentrations of phenolic compounds and carotenoids and antioxidant activity were evaluated in fruits. The experiment was a randomized block design in a 5x3 factorial scheme, five doses of fertilizers (0, 40, 80, 120 and 160 Kg ha-1 K2O) and three storage periods (harvest day, 10 days and 20 days in cold storage at 1±1ºC, followed by a day of simulated commercialization at 20±1ºC). Mass loss, pulp firmness, phenolic compounds, antioxidant activity and carotenoids decreased when fruit underwent cold storage, independent of the dosage of K fertilization. Doses of 40 and 160 kg ha-1 K2O applied to the soil lead to a larger number of phenolic compounds and higher antioxidant activity in fruits at harvest time. After cold storage, fertilization with 160 kg ha-1 K2O exhibited the highest antioxidant activity and the lowest mass loss in fruits. Increase in doses of K strengthened the color of peach pulp

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.

Pruning Intensity and Lopping System in Fig Plants in the Brazilian Semiarid Region

2019 ◽  
pp. 1-9
Author(s):  
Francisco Sidene Oliveira Silva ◽  
Vander Mendonça ◽  
Anderson Araujo Alves ◽  
Wagner Cesar De Farias ◽  
Elizangela Cabral Dos Santos ◽  
...  
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Semiarid Region ◽  
Physical Chemical ◽  
Randomized Block Design ◽  
Brazilian Semiarid ◽  
Fig Trees ◽  
Pruning Intensity

Aims: Fig plants produce fruits in branches of the year, which grow after emission of buds from the leaf armpits. And the lopping system is one of the most common practices among the green fig farmers to increase production. Thus, the present work aimed to improve the physical, chemical and productive characteristics of fig trees in the semiarid region of Brazil. Study Design: A complete randomized block design was used in a 3x2 factorial scheme (three pruning intensities: 5, 10 and 15 cm in length; and two lopping systems: with and without lopping), constituting six treatments with four replicates. Each experimental plot consisted of five plants, but only the three central plants were used. Place and Duration of Study: The experiment was conducted in the didactic orchard of the Federal Rural University of Semiarid (UFERSA), Mossoró, RN. Methodology: The treatments were: 5 cm pruning without lopping; 5 cm pruning with lopping; 10 cm pruning without lopping; 10 cm pruning with lopping; 15 cm pruning without lopping; 15 cm pruning with lopping. The following variables were analyzed: fruit weight (g), fruit length (cm), fruit diameter (cm), pulp firmness (N), soluble solids content (ºBrix), titratable acidity (%), vitamin C content (mg ascorbic acid 100 g-1 pulp), fruit yield (number of fruits plant-1 and kg plant-1). Data were submitted to analysis of variance by the F test at 5% probability and means were grouped using the Tukey test at 5% probability. The analysis was performed using R software version 3.5.2. Conclusion: Pruning intensity 10 cm in length and the use of lopping system influenced the physical, chemical and productive characteristics of fig plants in the Brazilian semiarid region.

The Harvest Season Changes the Organoleptic Properties of Onion during Storage

2019 ◽  
pp. 1-9
Author(s):  
Ariana Pereira Mota ◽  
Renata Ranielly Pedroza Cruz ◽  
Ana Paula Sato Ferreira ◽  
Mateus De Paula Gomes ◽  
Maria Eduarda da Silva Guimarães ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Reducing Sugars ◽  
Block Design ◽  
Soluble Sugars ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Organoleptic Properties ◽  
Post Harvest ◽  
Randomized Block Design

Aims: The objective was to determine the influence of the onion harvest time "Baia Periforme" on post-harvest quality of the bulbs during storage. Study Design: The experiment was conducted in a randomized block design with three treatments, six replicates with two bulbs each. Place and Duration of Study: Departamento de Fitotecnia, Universidade Federal de Viçosa, between June 2017 and July 2018. Methodology: Seedlings, 20 days old, were transplanted into 20 cm spacing between rows and 10 cm between plants. The bulbs were harvested 120 days after transplanting with manual tipping of the pseudo-stem (T1), with 50 (T2) or 75% (T3) of the bulbs popped. The soluble sugars (SS), non-reducing sugars (NRS), reducing sugars (RS), total soluble solids (TSS), titratable acidity of phenolic compounds and alinase activity was determined every 30 days for 90 days. Results: The content of SS, TSS, phenolic compounds and alinase activity increased in the onions of T2, resulting in more sweet and pungent bulbs due to the higher content of acidity and phenolic compounds. Conclusion: The post-harvest quality of onion bulbs "Baia Periforme" was maintained when they were harvested with 50% of bulbs popped.

scholarly journals Fruit Ripening Development of ‘Valencia’ Orange Trees Grafted on Different ‘Trifoliata’ Hybrid Rootstocks

Horticulturae ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 3
Author(s):  
Allan Ricardo Domingues ◽  
Ciro Daniel Marques Marcolini ◽  
Carlos Henrique da Silva Gonçalves ◽  
Leandro Simões Azeredo Gonçalves ◽  
Sergio Ruffo Roberto ◽  
...  
Keyword(s):  
Fruit Ripening ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Data Sets ◽  
Randomized Block Design ◽  
Valencia Orange ◽  
Orange Fruit ◽  
Maturation Index ◽  
Orange Trees

The development of fruit ripening of ‘Valencia’ orange trees [Citrus sinensis (L.) Osb.] grafted on the following ‘Trifoliata’ hybrid rootstocks: ‘US-852’, IPEACS-256 and IPEACS-264 citrandarins, and F.80-3, ‘W-2’ citrumelo, and ‘Swingle’ citrumelo (control), was assessed in three different subtropical locations: Rancho Alegre (RA); São Sebastião da Amoreira (SSA); and São Jerônimo da Serra (SJS), Parana state, Brazil. The climate of the RA and SSA locations was classified as Cfa with hot summers, whereas that of the SJS location was Cfb with temperate summers, which are located at 380, 650, and 835 m a.s.l., respectively. A completely randomized block design with four replications and four trees per plot was used as a statistical model for each location. The soluble solids (SS) content, titratable acidity (TA), and the maturation index (MI) or ratio (SS/TA) of the juice, as well as the citrus color index (CCI) of fruit skin, were assessed monthly, beginning 200 days after flowering until harvest, totaling seven sampling dates. The data sets of each location were analyzed independently through a two-way analysis of variance (ANOVA) involving rootstocks in a split plot array in time (days) to allow for the assessment of the significance of the main effects, complemented by regression analysis. In general, the ripening of ‘Valencia’ orange fruits was influenced by the different ‘Trifoliata’ hybrid rootstocks. At the RA location, trees on IPEACS-256 and’ US-852’ citrandarins had the highest SS, and on ‘US-852’ citrandarin had the highest MI, reaching the MIim earlier than the other rootstocks. The highest CCI was achieved when trees were on IPEACS-256 citrandarin. At the SSA location, trees on ‘US-852’, IPEACS-256, and IPEACS-264 citrandarins had the highest SS, but on ‘US–852’ had the highest MI, reaching the earliest MIim among the rootstocks. The highest CCI was achieved when trees were on ‘US-852’ and IPEACS-256 citrandarins. In the SSJ location, there was no significant effect of the rootstocks on and of the variables of ‘Valencia’ orange fruit. This assessment can be useful in the planning of new orchards producing high-quality fruit with desirable features for the orange juice industry.

scholarly journals PHYSICO-CHEMICAL EVALUATION OF TOMATO HYBRID DERIVATIVES FOR PROCESSING SUITABILITY

2016 ◽  
Vol 4 (3) ◽  
pp. 131-145
Author(s):  
Fikreyohannes GedamuMihretu ◽  
M.N. Bhalekar
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Shape Index ◽  
Research Area ◽  
Soluble Solids ◽  
Chemical Evaluation ◽  
Randomized Block Design ◽  
Physico Chemical ◽  
Fruit Pericarp ◽  
Pericarp Thickness

Investigation was carried out to evaluate F5 and F6 generations of tomato hybrid derivatives for its physicochemical characters and its suitability for processing during spring-summer 2009/10 and 2010/11 at Vegetable Research area, Mahatma Phule Agricultural University, Rahuri.  F5 and F6 generations of two crosses (M-3-1 x H-24 and 87-2 x 18-1-1) and two standard checks (‘Bhagyashree’ and ‘Dhanashree’) were evaluated for processing suitability in randomized block design in three replications. There were significant differences in all the fruit physical characters studied. Significantly highest polar and equatorial diameters, shape index of fruit, pericarp thickness were recorded in both F5 and F6 generation. Biochemical composition and processing qualities of tomato genotypes in both F5 and F6 generations showed significant differences except fruit juice per cent in F6 generation. Major processing quality characters maximum recorded in F5 and F6 generations were: total soluble solids, 5.03 (T18) and 5.17oBrix (T27); titratable acidity 0.6 per cent (T13) and 0.68 per cent (T24); low pH, 4.07 (T21) and 4.07 (T6); maximum ascorbic acid, 36.27 (T26) and 32.93 (T32) mg/100 g; fruit total sugars, 3.72 per cent (T6) and 3.71 per cent (T26); maximum lycopene in T26 , which was 5.95 and 4.23 mg/100 g; β-carotene, was highest  in T32, 2.97 and 2.94 mg/100 g in F5 and F6 progenies.

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