The effect of salinity on yield and fruit quality of pepper grown in perlite

Navarro, Josefa M.; Garrido, Consuelo; Flores, Pilar; Martı́nez, Vicente

doi:10.5424/sjar/2010081-1153

Cited by 36 publications

(32 citation statements)

References 33 publications

(34 reference statements)

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“…Salinity is one of the prevalent abiotic stressors with direct implications on root development, especially for irrigated agro-systems in arid and semi-arid regions [30]. Though extensive studies have tested the bell pepper response to salinity [17,31,32], they mainly focused on the aboveground responses. The current study focuses on root growth dynamics as far as they are influenced by fruit load in aeroponically grown bell pepper plants under two salinity levels.…”

Section: Discussionmentioning

confidence: 99%

Root Development of Bell Pepper (Capsicum annuum L.) as Affected by Water Salinity and Sink Strength

Erel

Eshel

et al. 2019

Plants

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Fruits are the dominant sinks for assimilates. At optimal conditions, assimilates supply can meet the demand of fruits and those of the vegetative organs; however, extreme circumstances such as strong sink strength or an environmental stress may disturb this fine balance. While most studies focus on aboveground parameters, information regarding root growth dynamics under variable sink strength are scarce. The objective of this study was to evaluate the effect of sink strength (represented by fruit load) and salinity on bell-pepper root development. Three levels of fruit load were combined with two salinity levels in plants grown in an aeroponic system. Root growth was determined both by root capacitance and destructive measurements. Salinity and sink strength significantly affected root, shoot and fruit growth dynamics. Root growth was less affected by fruit load. Salinity stress was negatively associated with shoot growth, but after an acclimation period, salinity enhanced root development. Additionally, this study shows for the first time that root capacitance is a valid approach for non-destructive measurement of root development in aeroponic systems. The good correlation measured by us (r2 0.86) opens new opportunities for continuous root growth monitoring in aeroponic systems in the future.

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Section: Discussionmentioning

confidence: 99%

Root Development of Bell Pepper (Capsicum annuum L.) as Affected by Water Salinity and Sink Strength

Erel

Eshel

et al. 2019

Plants

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“…Le poivron doux (Capsicum annuumL.) est considéré parmi les espèces légumières sensibles ou modérément sensibles à la salinité (Navarro et al, 2010 Le stress salin est le résultat d'un déficit hydrique dans la plante sous forme de sécheresse physiologique (Mahajan & Tuteja, 2005) .Ce stress osmotique se traduit essentiellement par l'accumulation toxique des ions dans les cellules et/ou un déséquilibre nutritionnel dû à un excès de certains ions (Souguir et al, 2013). En effet, selon le degré de stress dans le milieu, les plantes sont exposées à des modifications de leur comportement morphophysiologique, anatomique et biochimique (Nasir-Khan, 2010).…”

Section: Introductionunclassified

Effet Du Stress Salin Sur Le Comportement Biochimique Et Anatomique Chez Deux Variétés De Piment (Capsicum Annuum L.) À Mila /Algérie

Bouassaba

Chougui

2018

ESJ

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Soil salinity is a permanent threat to the survival of plants. The choice of a salt tolerant species could be a solution to this constraint. This paper focuses on the concept of adaptation and sensitivity during the vegetative phase of sweet pepper (Capsicum annuum L.) variety: Super marconi (Sp) and Marconi (M). Plants were stressed with different concentrations of NaCl ranging from 0, 25, 50 to 150 mM/l NaCl for 60 days. The results obtained showed that the application of stress results in a moderate decrease in plant size and the content of Chlorophyll a, b which declined during times of stress. An increase in proline content and soluble sugars was recorded in the leaves. It could be an indicator of salinity tolerance which explains the maintenance of a good water status among the studied plants. Regarding the ionic content (K + and Na + ), salt stress caused a significant decrease in the content of K + , and a significant increase in Na + content in both pepper varieties. Concerning anatomical structure of stems, the action of combined salts (50-150Mmol/L) causes a decrease in the size of the parenchymal cells, as well as the diameter of xylem vessels. It is concluded that the variety Super Marconi (Sp) is more tolerant to salinity compared to the variety Marconi (M). Hence, they have a significant role to play in agriculture, food, and economy.Keywords: Tolerance, salinity, resistance, Capsicum annuum L RésuméLa salinité du sol est une menace permanente pour la survie des végétaux. Le choix d'une espèce tolérante au sel serait une solution à cette (M). Les plantes ont été stressées avec différentes concentrations de NaCl allant de 0, 25, 50 à 150 mM/l de NaCl pendant 60 jours. Les résultats obtenus montrent que l'application du stress conduit à une diminution modérée de la taille des plantes et de la teneur en chlorophylle a, b qui diminue en période de stress. Une augmentation de la teneur en proline et des sucres solubles a été enregistrée au niveau des feuilles. Elle pourrait être un indice de tolérance de la plante à la salinité, ce qui explique le maintien d'un bon état hydrique parmi les plantes étudiées. Pour les teneurs ioniques (K + et Na + ), le stress salin a entrainé une diminution significative de la teneur en K + et une augmentation significative de la teneur en Na + chez les deux variétés de piment. Concernant les coupes anatomiques des tiges, l'action des sels combinés (50-150mMol/L) engendre une diminution de la taille des cellules parenchymateuses, ainsi que celle du diamètre des vaisseaux de xylème. On conclue que la variété Super marconi (Sp) est plus tolérante à la salinité en comparaison avec la variété Marconi (M) et qu'elle a de l'importance dans l'agriculture, la nourriture et l'économie.

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“…They found a drastic reduction in the number of fruits when the salinity level exceeded 7.0 dS m -1 . Furthermore, several authors have observed linear reductions in plant dry matter production associated with increasing salinity of the environment and have concluded that this is responsible for reducing the number of fruits and fruit weight per pepper plant (Navarro et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…4), which were affected by the increasing salinity. According to Navarro et al (2010), salinity reduces both fruit size and number of fruits or only fruit size. This corroborates our results.…”

Section: Resultsmentioning

confidence: 99%

Brackish water: an option for producing hydroponic <i>Capsicum annuum</i> in laminar flows of mineral nutrients

Santos

Silva

Boechat

et al. 2018

Rev. Colomb. Cienc. Hortic.

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Sweet pepper plants were grown using a Nutrient Film Technique (NFT) hydroponic system. This study aimed to evaluate the effect of using brackish water on fruit production. The experiment was carried out in a randomized block design with seven treatments and five replications. The electrical conductivity of the water was 0.29, 1.39, 2.75, 4.49, 5.90, 6.76, and 7.09 dS m -1 in the treatments; this water was used for both the nutrient solution preparation and replenishment of crop evapotranspiration. The plant parameters: fruit diameter, fruit length, number of fruits per plant, mean fruit weight, total fruit weight per plant and fruit length/diameter ratio were evaluated 69 days after the transplanting. The use of brackish water with high electric conductivity values did not directly interfere with the sweet pepper production in NFT hydroponic systems, as long as these values did not exceed the sweet pepper salt tolerance of 1.5 to 1.8 dS m -1 .Additional key words: soilless cultivation, semiarid, environmental protection, water reuse. RESUMENLas plantas de pimiento dulce se cultivaron utilizando un sistema hidropónico Nutrient Film Technique (NFT). Su objetivo fue evaluar el efecto del uso de agua salobre en la producción de fruta. El experimento se The increasing demand for water resources in recent decades has led to the search for more water-efficient techniques, as well as the rational use of water that is not desirable for drinking. The agricultural production sector puts the highest pressure on water resources. According to Chartzoulakis and Bertaki (2015), of the total annual volume of estimated water diversion worldwide, agricultural production currently uses about 70%, mainly for irrigation.In this context, according to some authors (Dias et al., 2010;Cosme et al., 2011;Santos Júnior et al., 2015), hydroponic agriculture is a strong ally as a mitigating technology against the quantitative and qualitative depletion scenario of water resources for the following reasons. Firstly, this approach favors water-efficient applications in agriculture.The other reason involves the use of water that is considered marginal, such as brackish water. Alves et al. (2011) reported that, as hydroponic cultivation frequently assumes a matric potential equal to zero because of the saturation of plants, the crop response to salinity increases, ascompared to the conventional cultivation system. Moreover, the authors pointed out that the drainage and irrigation system (Nutrient Film Technique) enables the appropriate use of mineral salts at the end of production. Numerous studies have shown (Paulus et al., 2010;Soares et al., 2010;Alves et al., 2011;Maciel et al., 2012;Sarmento et al., 2014) promising results using brackish water in the hydroponic cultivation of vegetables and some ornamental plants.Moderately sensitive to salinity (Ayers and Westcot, 1985;Kurunc et al., 2011;Maia et al., 2017), bell peppers (Capsicum annuum L.) are one of the most widespread vegetables that are consumed fresh in Brazil. According to A...

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The effect of salinity on yield and fruit quality of pepper grown in perlite

Cited by 36 publications

References 33 publications

Root Development of Bell Pepper (Capsicum annuum L.) as Affected by Water Salinity and Sink Strength

Root Development of Bell Pepper (Capsicum annuum L.) as Affected by Water Salinity and Sink Strength

Effet Du Stress Salin Sur Le Comportement Biochimique Et Anatomique Chez Deux Variétés De Piment (Capsicum Annuum L.) À Mila /Algérie

Brackish water: an option for producing hydroponic <i>Capsicum annuum</i> in laminar flows of mineral nutrients

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