Physiological and Biochemical Changes of Pepper Cultivars Under Combined Salt and Drought Stress

Yıldırım, Ertan; Ekinci, Melek; Turan, Metin; Ağar, Güleray; Örs, Selda; Dursun, Atilla; Kul, Raziye; Akgül, Gökçe

doi:10.1007/s10343-022-00642-1

Cited by 11 publications

(8 citation statements)

References 33 publications

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“…The decrease in the leaf relative water content of the pepper under deficit irrigation conditions can be evaluated by the decrease in water storage in the leaves as a result of the plant's inability to get enough water in the decreasing soil moisture. In drought conditions, plants close their stomata to resist stress, and then they lose water from their leaves with the increase in leaf temperatures due to increased drought (Yildirim et al, 2022). In addition, Omami and Hammes (2016) explained the decrease in the leaf relative water content of the plant with the decrease in the osmotic potential at the decreasing irrigation water level.…”

Section: Resultsmentioning

confidence: 99%

Effects of Nano Silicon on Growth and Physiological Properties in Deficit Irrigated Pepper (Capsicum Annuum L.)

2023

International Conference on Innovative Academic Studies

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Pollution and reduction of water resources have led to the production of different alternative searches in agriculture where water is consumed the most. The deficit irrigation approach, in which less water is supplied to the plants, has been accepted as a prominent practice. However, growth and so yield significantly reduced in deficit irrigation approach compared to full irrigation, constitute an important problem. Therefore, there is a need for practical actions to improve the reduced growth in the deficit irrigation approach. Nano silicon, which is produced as a result of nanotechnologies that have emerged in recent years, is mentioned as a nano fertilizer that improves growth and physiology by protecting the plant from biotic and abiotic stress factors. Thus, in this study, the effects of nano silicon applications (0 ppm, 50 ppm, and 100 ppm) on the soil of pepper plants (Capsicum annuum L.) growing in different irrigation levels (100%: full irrigation, 75%: deficit irrigation at 25% of full irrigation, and 50%: deficit irrigation at 50% of full irrigation) on the properties of the plant were investigated. While many properties of pepper (number of leaves and fruits, plant height, stem diameter, plant fresh weight, chlorophyll content, leaf relative water content, and electrolyte leakage) which decreased by increasing drought, nano silicon applications influenced positively the number of leaves, plant height, plant fresh weight and chlorophyll content. According to these results, a 100 ppm dose of nano silicon was found to be effective in improving some properties of plants in pepper cultivation at the decreasing irrigation water level, but investigating the effectiveness of nano silicon applications at different rates and continuing field studies on this subject were found to be advisable in the results of this study.

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Section: Resultsmentioning

confidence: 99%

Effects of Nano Silicon on Growth and Physiological Properties in Deficit Irrigated Pepper (Capsicum Annuum L.)

2023

International Conference on Innovative Academic Studies

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“…In some plants, root restriction reduces photochemical activity and chlorophyll content. For instance, in cayenne pepper, root restriction resulted in reduced plant height and total leaf area growth, thereby reducing the plant's ability to capture photosynthetically active radiation [38]. With adequate water and nutrient supply, there was a significant correlation between leaf area and root growth and leaf area and bud growth depended on root size.…”

Section: Discussionmentioning

confidence: 99%

Melatonin Affects Leymus chinensis Aboveground Growth and Photosynthesis by Regulating Rhizome Growth

Fan,

Li,

et al. 2024

Agronomy

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Leymus chinensis is a perennial rhizomatous clone plant. It exhibits strong rhizomatous tillering and clonal growth through asexual reproduction. The root system is interdependent with aboveground growth and root growth can regulate aboveground growth and photosynthesis. Melatonin has been shown to regulate root growth and promote photosynthesis. However, it remains unclear whether melatonin affects aboveground growth and photosynthesis by regulating rhizome growth. To address this gap, we studied nine Leymus chinensis from different geographical locations, all grown under the same conditions. We selected two materials with strong (LC19) and weak (LC2) rhizome growth abilities from nine materials and treated them with exogenous melatonin. We found there were significant positive correlations between stem length, plant height, leaf number and rhizome traits. Additionally, rhizome traits showed significant positive correlations with photosynthetic indices and chlorophyll content. Specifically, for LC2, treatment with 200 μmol/L melatonin significantly increased root length, the number of extravaginal ramets and rhizome clonal growth rate by 88.72%, 43.75% and 43.70%, respectively, resulting in significant increases in aboveground traits. Similarly, for LC19, 200 μmol/L melatonin treatment led to significant increases of 74.66%, 23.02%, 62.71% and 62.72% in four traits, respectively, along with aboveground trait improvements. Furthermore, around 300 μmol/L melatonin treatment promoted photosynthetic efficiency in LC2, while around 100 μmol/L melatonin treatment had the same effect in LC19. In conclusion, our study highlights the relationship between rhizome growth ability, aboveground growth and photosynthesis in Leymus chinensis. Additionally, it suggests that exogenous melatonin can enhance aboveground growth and photosynthesis by regulating rhizome growth.

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“…There were two negative impacts of salt stress on photosynthesis (Singh et al, 2022b). First off, salt stress causes plants' stomas to close, lowering the level of CO2 in their cells (Yildirim et al, 2022). Second, the system of photosynthetic membranes is harmed by salt stress, which also reduces the ability to absorb CO2, restrictions not connected to the stoma, like harmed photosynthetic pigments (Zahra et al, 2022).…”

Section: Osmotic Pressure Affected By Salinitymentioning

confidence: 99%

Recent Advancement on Physiological and Molecular Response to Cotton under Salt Stress: A Review

Muhammad¹,

Luo²,

Gui³

et al. 2023

Preprint

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The production of plants and crops is inﬂuenced by environmental stress, which is a serious scientific issue. Cotton is an essential crop for producing natural fibers that are used to make biofuel and edible oils. Salinity is the main element that influences cotton growth during the beginning of germination. The type of salt and the growth stage affects how sensitive a plant is to salt stress. Developing ways to enhance cotton performance in salty circumstances can be aided by an understanding of the response of cotton to salt, its mechanism of resistance, and its management methods. Osmotic and ionic imbalances originate due to the deposition of soluble salts under salinity stress in the plant's root zone. Soil salinity significantly reduces plant growth due to several factors, such as nutritional ion imbalance, which reduces K+, PO4-, and NO- absorption, excessive salt chloride concentrations, and osmotic stress, which hinders water availability. Research has revealed that compared to subsequent stages, the germination, emergence, and seedling phases are more vulnerable to salinity stress, which ultimately affects the seed cotton yield by delaying blooming, reducing fruiting positions, shedding fewer fruits, and reducing boll weight. The morphology, growth of cotton roots, shoots, yield, and fiber quality are all strongly impacted by salinity stress. It slows down plant feeding, cellular metabolism, and photosynthesis. The soil, water, and climate all affect how the plant responds to salinity stress. During salt stress, excessive exclusion of sodium or its compartmentalization is the key adaptation process in cotton. A major adaptive potential to create cotton types that can withstand salt is provided by the up-regulation of both physicochemical and non-enzymatic antioxidant genes. A successful strategy to increase cotton germination in saline soils is seed priming. Moreover, the transgenic strategy might be a viable choice for improving cotton yield in saline environments. Our review focuses on the impacts of salinity on cotton productivity as well as how plants react to salt stress. It also clarifies recent genetic advancements and molecular breeding for cotton's resistance to soil salt. To create salt-tolerant cultivars, a combination of traditional breeding and novel molecular approaches will be useful.

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Physiological and Biochemical Changes of Pepper Cultivars Under Combined Salt and Drought Stress

Cited by 11 publications

References 33 publications

Effects of Nano Silicon on Growth and Physiological Properties in Deficit Irrigated Pepper (Capsicum Annuum L.)

Effects of Nano Silicon on Growth and Physiological Properties in Deficit Irrigated Pepper (Capsicum Annuum L.)

Melatonin Affects Leymus chinensis Aboveground Growth and Photosynthesis by Regulating Rhizome Growth

Recent Advancement on Physiological and Molecular Response to Cotton under Salt Stress: A Review

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