Ecological foliar fertilization effects on essential oil composition of sweet basil (Ocimum basilicum L.) cultivated in a field system

Onofrei, Vasilica; Benchennouf, Amina; Jancheva, Magdalena; Loupassaki, Sofia; Ouaret, Walid; Burducea, Marian; Lobiuc, Andrei; Teliban, Gabriel-Ciprian; Robu, Teodor

doi:10.1016/j.scienta.2018.05.021

Cited by 18 publications

(12 citation statements)

References 22 publications

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“…However, the total amount of the mentioned bioactive compounds recorded in dry basil leaves was highest under organic and chemical fertilization, as well as the microorganisms application. Consistently with our findings, previous authors [55,56] reported that the synthesis of phenolic compounds in plants depends upon environmental conditions, cultivar and farming practices; among the latter, the application of microorganisms [30] and fertilizers [57] play a significant role. However, the antioxidant synthesis can be encouraged by different types of fertilization [16] and, indeed, the increased content of polyphenols, flavonoids and anthocyanins recorded in the present study under the unconventional fertilized treatments (biosolids, organic and microorganisms), was presumably due to their stimulation effect on secondary metabolism [58].…”

Section: Discussionsupporting

confidence: 93%

Biochemical, Physiological and Yield Characteristics of Red Basil as Affected by Cultivar and Fertilization

et al. 2020

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Unconventional fertilizers can act as elicitors to encourage the synthesis of phyto-pharmaceuticals in aromatic plants. In the present research, the effects of factorial combination between two red basil cultivars, ‘Opal’ and ‘De Buzau’, and four fertilization types, biosolids, organic, microorganisms and chemical, plus an unfertilized control, were assessed on fresh and dry yield, biometrical parameters, soil plant analysis development (SPAD) and antioxidant compounds and activity. Chemical fertilization increased fresh yield compared with the control, with no difference in organic and microorganism fertilization regarding dry weight. ‘De Buzau’ enhanced the number of lateral stems and plant height, the latter being better affected by chemical and microorganisms compared to the control. Chemical fertilization showed the highest leaf dry matter, nitrate content and SPAD, whereas the control showed the lowest. Compared to the unfertilized control, biosolids increased total phenolics in ‘Opal’; microorganisms, organic and biosolids enhanced total flavonoids in ‘Opal’, with the same effect under microorganisms and organic treatments in ‘De Buzau’. Total anthocyanins showed the highest content in ‘Opal’ under organic fertilization. The highest antioxidant activity in the basil extracts was detected under microorganisms and organic applications in ‘Opal’. The present investigation results demonstrate that unconventional fertilizers increase the synthesis of antioxidants and represent a sustainable alternative to chemical fertilization for growing red basil.

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Section: Discussionsupporting

confidence: 93%

Biochemical, Physiological and Yield Characteristics of Red Basil as Affected by Cultivar and Fertilization

et al. 2020

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“…However, considering that the two molecules linalool and eucalyptol have the same precursor (geranyl pyrophosphate (GPP)), the conversion to linalool and eucalyptol is mediated by specific enzymes (linalool synthase (LIS) and 1,8-cineol synthase), as suggested by Chang et al [ 51 ], but could also be influenced in a genotype × environment interaction, since the different enzymatic activities are highly sensitive to environmental conditions [ 52 ]. In addition to the genetic and environmental component, plant nutrition is to be considered a further liable factor to quanti-qualitatively modify the aromatic profile [ 53 ]. The different concentrations of macronutrients in nutrient solution significantly influenced the content of trans-2-hexenal, α-bergamotene and eugenol.…”

Section: Discussionmentioning

confidence: 99%

Sweet Basil Functional Quality as Shaped by Genotype and Macronutrient Concentration Reciprocal Action

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El‐Nakhel

et al. 2020

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Basil (Ocimum basilicum L.) is among the most widespread aromatic plants due to its versatility of use and its beneficial health properties. This aromatic plant thrives in hydroponics, which is a valid tool to improve the production and functional quality of crops, but nevertheless, it offers the possibility to de-seasonalize production. A floating raft system was adopted to test the production and quality potential during autumn season of three different genotypes of Genovese basil (Aroma 2, Eleonora and Italiano Classico) grown in three nutrient solutions with crescent electrical conductivity (EC: 1, 2 and 3 dS m−1). The aromatic and phenolic profiles were determined by GC/MS and HPLC analysis, respectively. The combination Aroma 2 and the EC 2 dS m−1 resulted in the highest production, both in terms of fresh weight and dry biomass. The 2 dS m−1 treatment determined the major phenolic content, 44%, compared to the other two EC. Italiano Classico showed a higher total polyphenolic content in addition to a different aromatic profile compared to the other cultivars, characterized by a higher percentage of Eucalyptol (+37%) and Eugenol (+107%) and a lower percentage of linalool (−44%). Correct management of the nutritional solution combined with adequate genetic material managed an improvement in the production and the obtainment of the desired aromatic and phenolic profiles.

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“…Due to its intrinsic genetic variability, the myriad species of basil identified by researchers and botanists, differ in morphological traits (e.g., color and shape) and in chemical and aromatic composition [1,3]. Hence, making it a multifaceted vegetable highly demanded by the pharmaceutical, cosmetic, and food processing industries [4]. Native to the Asian continent (India, Pakistan, Iran, and Thailand), nowadays basil is widespread and cultivated worldwide [5,6].…”

Section: Introductionmentioning

confidence: 99%

Successive Harvests Modulate the Productive and Physiological Behavior of Three Genovese Pesto Basil Cultivars

et al. 2021

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In the Italian culinary tradition, young and tender leaves of Genovese basil (Ocimum basilicum L.) are used to prepare pesto sauce, a tasty condiment that attracts the interest of the food processing industry. Like other leafy or aromatic vegetables, basil is harvested more than once during the crop cycle to maximize yield. However, the mechanical stress induced by successive cuts can affect crucial parameters associated with pesto processing (leaf/stem ratio, stem diameter, and dry matter). Our research accordingly aimed to evaluate the impact of successive harvests on three field-grown Genovese basil cultivars (“Aroma 2”, “Eleonora” and “Italiano Classico”) in terms of production, physiological behavior, and technological parameters. Between the first and second harvest, marketable fresh yield and shoot dry biomass increased by 148.4 % and 172.9 %, respectively; by contrast, the leaf-to-stem ratio decreased by 22.5 %, while the dry matter content was unchanged. The increased fresh yield and shoot dry biomass at the second harvest derived from improved photosynthetic efficiency, which enabled higher net CO2 assimilation, Fv/Fm and transpiration as well as reduced stomatal resistance. Our findings suggest that, under the Mediterranean environment, “Italiano Classico” carries superior productive performance and optimal technological characteristics in line with industrial requirements. These promising results warrant further investigation of the impact successive harvests may have on the qualitative components of high-yielding basil genotypes with respect to consumer expectations of the final product.

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Ecological foliar fertilization effects on essential oil composition of sweet basil (Ocimum basilicum L.) cultivated in a field system

Cited by 18 publications

References 22 publications

Biochemical, Physiological and Yield Characteristics of Red Basil as Affected by Cultivar and Fertilization

Biochemical, Physiological and Yield Characteristics of Red Basil as Affected by Cultivar and Fertilization

Sweet Basil Functional Quality as Shaped by Genotype and Macronutrient Concentration Reciprocal Action

Successive Harvests Modulate the Productive and Physiological Behavior of Three Genovese Pesto Basil Cultivars

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