Postharvest Quality of Sour Passion Fruit Under Irrigation Strategies with Brackish Water and Potassium Application in Two Crop Cycles

Lima, Geovani Soares de; Pinheiro, Francisco Wesley Alves; Gheyi, Hans Raj; Soares, Lauriane Almeida dos Anjos; Soares, Marcos Denilson Melo; Silva, Francisco Alves da; Azevedo, Carlos Alberto Vieira de; Lima, Vera L. A. de

doi:10.1007/s11270-022-05922-0

Cited by 2 publications

(4 citation statements)

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“…Regarding the chemical characteristics of the fruits, as highlighted by Lima et al [ 3 ], irrigation with water of 4.0 dS m −1 in T5 and fertilization with 345 g K 2 O per plant per year increases the total titratable acidity and reduces the hydrogen potential and soluble solids in the passion fruit pulp, regardless of the adopted strategy. On the other hand, fertilization with 345 g K 2 O and irrigation with water of 4.0 dS m −1 in T3 increases the flavonoid contents and the ratio of soluble solids to total titratable acidity, while the salt stress in the fruiting stage promotes an increase in anthocyanin contents in the passion fruit pulp.…”

Section: Resultsmentioning

confidence: 99%

“…At 254 DAT the second production cycle began. At this time, the canopy was pruned [ 3 ]. This procedure reduces the problems caused by pests and diseases, improves the phytosanitary status of plants, and facilitates crop management, especially fertilization and irrigation.…”

Section: Methodsmentioning

confidence: 99%

“…Although the northeastern semi-arid region has the potential for the increased cultivation of this fruit species, the occurrence of high temperatures and the irregular distribution of rainfall associated with intense evaporation throughout the year are limiting factors for irrigated fruit cultivation [ 2 ]. In this region, it is common to find water sources with high levels of dissolved salts, standing out as one of the abiotic stresses that promote osmotic and ionic changes in plants [ 3 ] when used to irrigate orchards.…”

Section: Introductionmentioning

confidence: 99%

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NPK Accumulation, Physiology, and Production of Sour Passion Fruit under Salt Stress Irrigated with Brackish Water in the Phenological Stages and K Fertilization

Lima

Silva

Torres

et al. 2023

Plants

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This research aimed to evaluate the effects of salt stress, varying the phenological stages, and K fertilization on NPK concentrations, physiology, and production of Passiflora edulis Sims. The research was carried out at the University Farm of São Domingos, Paraíba, Brazil, using a randomized block design with a 6 × 2 factorial arrangement. Six irrigation strategies were evaluated (use of low electrical conductivity water (0.3 dS m−1) during all stages of development and application of high-salinity water (4.0 dS m−1) in the following stages: vegetative, flowering, fruiting, successively in the vegetative/flowering, and vegetative/fruiting stages) and two potassium levels (207 and 345 g K2O per plant), with four replications and three plants per plot. The leaf concentrations of N, P, and K in the sour passion fruit plants found in the present study were below the optimal levels reported in the literature, regardless of the development stage and the cultivation cycle. The relative water content, stomatal conductance, and photosynthesis were reduced by salt stress in the first cycle. However, in the second cycle, irrigation with 4.0 dS m−1 in the vegetative/flowering stages increased the CO2 assimilation rate. Passion fruit is sensitive to salt stress in the vegetative/flowering stages of the first cycle. In the second cycle, salt stress in the fruiting stage resulted in higher production per plant.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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NPK Accumulation, Physiology, and Production of Sour Passion Fruit under Salt Stress Irrigated with Brackish Water in the Phenological Stages and K Fertilization

Lima

Silva

Torres

et al. 2023

Plants

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“…Salinity reduces chlorophyll synthesis and photochemical efficiency, limiting the process of photosynthesis, which directly affects crop production [ 8 ]. According to Dias et al [ 9 ], irrigation with saline water also reduces pulp yield and compromises the postharvest quality of fruits, as observed by Andrade et al [ 10 ], who found reductions in the number of fruits and in the average weight of sour passion fruit irrigated by water with electrical conductivity (ECw) above 0.7 dS m −1 , while Lima et al [ 11 ] found reductions in the polar and equatorial diameter of passion fruit as a function of salt stress; in another study, Ramos et al [ 12 ] observed reductions in pulp yield and postharvest quality of passion fruit irrigated with ECw above 0.6 dS m −1 .…”

Section: Introductionmentioning

confidence: 99%

Foliar Applications of Salicylic Acid on Boosting Salt Stress Tolerance in Sour Passion Fruit in Two Cropping Cycles

Sobrinho

Silva

Lima

et al. 2023

Plants

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Brazil stands out as the largest producer of sour passion fruit; however, the water available for irrigation is mostly saline, which can limit its cultivation. This study was carried out with the objective of evaluating the effects of salicylic acid in the induction of tolerance in sour passion fruit to salt stress. The assay was conducted in a protected environment, using a completely randomized design in a split-plot scheme, with the levels of electrical conductivity of the irrigation water (0.8, 1.6, 2.4, 3.2, and 4.0 dS m−1) considering the plots and concentrations of salicylic acid (0, 1.2, 2.4, and 3.6 mM) the subplots, with three replications. The physiological indices, production components, and postharvest quality of sour passion fruit were negatively affected by the increase in the electrical conductivity of irrigation water, and the effects of salt stress were intensified in the second cycle. In the first cycle, the foliar application of salicylic acid at concentrations between 1.0 and 1.4 mM partially reduced the harmful effects of salt stress on the relative water content of leaves, electrolyte leakage, gas exchange, and synthesis of photosynthetic pigments, in addition to promoting an increase in the yield and quality parameters of sour passion fruit.

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Postharvest Quality of Sour Passion Fruit Under Irrigation Strategies with Brackish Water and Potassium Application in Two Crop Cycles

Cited by 2 publications

References 36 publications

NPK Accumulation, Physiology, and Production of Sour Passion Fruit under Salt Stress Irrigated with Brackish Water in the Phenological Stages and K Fertilization

NPK Accumulation, Physiology, and Production of Sour Passion Fruit under Salt Stress Irrigated with Brackish Water in the Phenological Stages and K Fertilization

Foliar Applications of Salicylic Acid on Boosting Salt Stress Tolerance in Sour Passion Fruit in Two Cropping Cycles

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