Melatonin alleviates the adverse effects of water stress in adult olive cultivars (Olea europea cv. Sevillana &amp; Roughani) in field condition

Gholami, Rahmatollah; Hoveizeh, Narjes Fahadi; Zahedi, Seyed Morteza; Gholami, Hojattollah; Carillo, Petronia

doi:10.1016/j.agwat.2022.107681

Cited by 30 publications

(12 citation statements)

References 78 publications

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“…Comparison of the mean effects of the factor considered (Biostimulant-B) was performed by one-way analysis of variance (ANOVA), while statistical significance was determined using the Tukey’s HSD test at the p < 0.05 level. The loading plot and score plot of all analyzed parameters was determined after principal component analysis (PCA) by using Minitab ® 18 statistical software (Minitab LLC, State College, PA, USA) [ 68 ]. The heat map results were calculated as Logarithm base 1.5 (Log 1.5 ) of the treatment to control ratio and visualized using a false-color scale, with red indicating an increase and blue a decrease of values [ 69 ].…”

Section: Methodsmentioning

confidence: 99%

Morpho-Anatomical, Physiological, and Mineral Composition Responses Induced by a Vegetal-Based Biostimulant at Three Rates of Foliar Application in Greenhouse Lettuce

Carillo

Micco

Ciriello

et al. 2022

Plants

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A promising strategy for sustainably increasing the quality and yield of horticultural products is the use of natural plant biostimulants. In this work, through a greenhouse experiment, we evaluated the effect of a legume-derived biostimulant at three dose treatments (0.0 control, 2.5 mL L−1, and 5.0 mL L−1) on the yield performance, nutrients traits, leaf anatomical traits, gas exchanges, and carbon photosynthetic assimilation of greenhouse lettuce. The lettuce plants were foliar sprayed every 7 days for 5 weeks. The application of plant biostimulant, at both lower and higher dosages, increased the nutrient use efficiency, root dry weight, and leaf area. However, it is noteworthy that the 5.0 mL L−1 dose enhanced photosynthetic activity in the early phase of growth (15 DAT), thus supplying carbon skeletons useful for increasing the number of leaves and their efficiency (higher SPAD), and for boosting nutrient uptake (P, S, and K) and transport to leaves, while the 2.5 mL L−1 dose exerted specific effects on roots, increasing their dimension and enabling them to better use nitrate and Ca. A higher dose of biostimulant application might find its way in shorter growing cycle, thus presenting new horizons for new lines of research in baby leaves production.

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Section: Methodsmentioning

confidence: 99%

Morpho-Anatomical, Physiological, and Mineral Composition Responses Induced by a Vegetal-Based Biostimulant at Three Rates of Foliar Application in Greenhouse Lettuce

Carillo

Micco

Ciriello

et al. 2022

Plants

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“…R. intraradices -based commercial preparation, especially when supplied together with a legume-derived protein hydrolysate (PH), increased antioxidant activities (CAT and GPX), proline content and SPAD index (correlated to photosynthetic pigments) in lettuce [ 50 ]. Proline, being an amino acid accumulated under osmotic stress (under salinity or drought) as an osmolyte, is able to act as an ROS scavenger, protecting and stabilizing membranes and macromolecules and promoting the expression of stress-responsive genes presenting elements responsive to proline [ 73 ].…”

Section: Arbuscular Mycorrhizal Fungi (Amf)mentioning

confidence: 99%

The Effects of the Microbial Biostimulants Approved by EU Regulation 2019/1009 on Yield and Quality of Vegetable Crops

Fusco

Nicastro

Rouphael

et al. 2022

Foods

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The use of microbial biostimulants such as plant growth-promoting rhizobacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) has gained popularity in recent years as a sustainable approach to boost yield as well as the quality of produce. The beneficial effects of microbial biostimulants have been reported numerous times. However, information is missing concerning quantitative assessment of the overall impact of microbial biostimulants on the yield and quality of vegetable crops. Here we provide for the first time a comprehensive, semi-systematic review of the effects of microbial biostimulants allowed by Regulation (EU) 2019/1009, including microorganisms belonging to the AMF (phylum Glomeromycota), or to Azospirillum, Azotobacter and Rhizobium genera, on vegetable crops’ quality and yield, with rigorous inclusion and exclusion criteria based on the PRISMA method. We identified, selected and critically evaluated all the relevant research studies from 2010 onward in order to provide a critical appraisal of the most recent findings related to these EU-allowed microbial biostimulants and their effects on vegetable crops’ quality and yield. Moreover, we highlighted which vegetable crops received more beneficial effects from specific microbial biostimulants and the protocols employed for plant inoculation. Our study is intended to draw more attention from the scientific community to this important instrument to produce nutrient-dense vegetables in a sustainable manner. Finally, our semi-systematic review provides important microbial biostimulant application guidelines and gives extension specialists and vegetable growers insights into achieving an additional benefit from microbial biostimulant application.

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“…For example, proline can also play a key role in ROS scavenging [62]. It, even being an amino acid accumulated under osmotic stress as an osmolyte, has been found able to act as a ROS scavenger, protect and stabilize membranes and macromolecules, and promote the expression of stressresponsive genes presenting elements responsive to proline [9].…”

Section: Osmolytes Phenolics and Rwcmentioning

confidence: 99%

“…Three treatment levels including 100% full irrigation, 75%, and 50% deficit irrigation were applied through the drip irrigation system simultaneously during the growing season. To calculate the water requirement, the FAO method was used, which was explained by Gholami et al [9]. Irrigation of trees was done once every 3 days and total of 10 times per month.…”

Section: Experimental Site Layout and Drought Impositionmentioning

confidence: 99%

“…The consequent water scarcity causes the accumulation of salts in the upper layers of soil further decreasing the capacity of plants to absorb water and nutrient from soil, in particular K + and Ca. 2+ , thus reducing cell turgor pressure [9]. Water stress and disturbance of ions homeostasis do not only impair transpiration causing photosynthetic disfunction but cause overproduction of reactive oxygen species (ROS) and oxidative stress, which damages lipids, nucleic acids, and proteins and destroys the membrane integrity [10].…”

Section: Introductionmentioning

confidence: 99%

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Effect of three water-regimes on morpho-physiological, biochemical and yield responses of local and foreign olive cultivars under field conditions

et al. 2022

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Background Drought stress is among the most serious threats jeopardizing the economic yield of crop plants in Iran. In particular, in response to withholding irrigation, the reduction in performance and quality of a precious plant such as the olive tree is remarkable. Therefore, the selection of cultivars that are resistant or tolerant to drought has been recognized as one of the most effective long-term strategies for sustainably alleviating the adverse effects of this stress. In this view, our study evaluated the response of 8 olive cultivars including 4 elite native cultivars (Zard Aliabad, Roughani, Dezful, and Shengeh) and 4 foreign cultivars (Manzanilla, Sevillana, Konservolia, and Mission) to water shortage in the Dallaho Olive Research station of Sarpole-Zahab in Kermanshah province in 2020. Olive trees underwent 3 levels of irrigation treatment including 100% full irrigation (control), 75%, and 50% deficit irrigation. Results Based on the results, 50% deficit irrigation decreased both growth and pomological traits, but determined the highest dry matter percentage. As the severity of drought stress increased, with an accumulation of sodium and malondialdehyde, an incremental increase in osmolytes was observed, as well as an enhancement of the activity of antioxidant enzymes (peroxidase and catalase). In contrast, full irrigation led to an increase in photosynthetic pigments, calcium, and potassium. Dezful and Konservolia cultivars revealed a significantly higher growth rate, correlated in the former to higher levels of chlorophyll, compatible compounds, total phenolic content, relative water content, potassium to sodium ratio, catalase, and peroxidase activities compared with other cultivars. Konservolia showed the best yield parameters under 75% and 100% irrigation regimes, correlated to higher chlorophyll, potassium, and total phenolic content (in particular at 75% ET). Conclusions Generally, the selection of more resilient or tolerant cultivars to sustain water scarcity stress is a widely operative solution to extend rainfed orchards in semi-arid environments. Our study showed that Dezful and Konservolia had the best adaptive mechanisms to cope with the detrimental effects of drought stress.

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Melatonin alleviates the adverse effects of water stress in adult olive cultivars (Olea europea cv. Sevillana & Roughani) in field condition

Cited by 30 publications

References 78 publications

Morpho-Anatomical, Physiological, and Mineral Composition Responses Induced by a Vegetal-Based Biostimulant at Three Rates of Foliar Application in Greenhouse Lettuce

Morpho-Anatomical, Physiological, and Mineral Composition Responses Induced by a Vegetal-Based Biostimulant at Three Rates of Foliar Application in Greenhouse Lettuce

The Effects of the Microbial Biostimulants Approved by EU Regulation 2019/1009 on Yield and Quality of Vegetable Crops

Effect of three water-regimes on morpho-physiological, biochemical and yield responses of local and foreign olive cultivars under field conditions

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