Fertilization and Colors of Plastic Mulch Affect Biomass and Essential Oil of Sweet-Scented Geranium

Silva, Anderson de Carvalho; Blank, Arie Fitzgerald; Santos, Wallace Melo dos; Prata, Paloma Santana; Alves, Péricles Barreto; Arrigoni-Blank, Maria de Fátima

doi:10.1155/2014/828259

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…During both the years, plant height was significantly higher under black polyethylene mulch (129.9and 139.1 cm), as compared to control. Results were in accordance with the studies of sweet-scented geranium and stevia in which plant height increased in mulched conditions as compared to control [20,21]. This is due to increased temperature under black polyethylene mulch that has enhanced the microbial activity of nitrifying bacteria that access the nitrification and nitrate to plant roots under soil [22,23].…”

Section: Resultssupporting

confidence: 88%

Effect of shade level and mulch type on growth, yield and essential oil composition of damask rose (Rosa damascena Mill.) under mid hill conditions of Western Himalayas

2019

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A field experiment was conducted at the experimental farm of CSIR-Institute of Himalayan Bioresource Technology, Palampur, India for two consecutive years (2015–16 and 2016–17). The aim of the study was to test the hypothesis whether different shade level and mulch type would influence the growth, flower yield and essential oil profile of R . damascena . Yield attributes viz ., numbers of flowers plant -1 , fresh flower weight plant -1 , flower yield, and essential oil yield were significantly higher under open sunny conditions as compared to 25% and 50% shade levels. However, plants grown under 50% shade level recorded significantly higher plant height (cm), plant spread (cm) and the lowest numbers of branches as compared to control. Among mulches, black polyethylene mulch recorded significantly higher growth, and yield attributes of damask rose as compared to other mulches. Black polyethylene mulch recorded 74.5 and 39.2% higher fresh flower yield as compared to without mulch, during 2015–16 and 2016–17, respectively. Correlation studies showed a positively significant correlation between quality and quantity traits. A total of twenty-six essential oil compounds were identified which accounted for a total of 88.8 to 95.3%. Plants grown under open sunny conditions along with the applications of black polyethylene mulch produced a higher concentration of citronellol and trans -geraniol. Damask rose planted in open sunny conditions and mulched with black polyethylene sheet recorded significantly higher flower yield.

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Section: Resultssupporting

confidence: 88%

Effect of shade level and mulch type on growth, yield and essential oil composition of damask rose (Rosa damascena Mill.) under mid hill conditions of Western Himalayas

2019

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“…Fertilization is a common and effective method to increase plant biomass [27][28][29] and has a certain impact on the composition and biological activity of plant essential oil [30]. Fertilization can not only promote the growth of plants, but also modulate the composition of essential oil, thus changing the EO biological activity, to some extent [31].…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis of Fertilization Effects on the Biosynthesis of Sesquiterpenes in Essential Oils from Phoebe Bournei Twigs and Leaves

Liu¹,

He²,

Xu³

et al. 2021

Preprint

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Background: Phoebe bournei is a potential medicinal plant whose essential oil (EO) from leaves has potential inhibitory activities against some bacterium, tumor, and has a certain potential for hypoglycemic activity. Fertilization is a common and effective method to increase plant biomass, which can increase the raw material of essential oil, but has a certain impact on the composition and biological activity of plant essential oil. Results: The main components are sesquiterpenes in the essential oils from leaves and twigs. The yield of the essential oils and the content of their main components can be modulated by compost and compound fertilizer, to different degrees, and minor differences were registered among the categories of the components in essential oils. However, changes were strongly mirrored in some main components of essential oils. The content of the primary (+) - calarene in the leaf EO were strongly increased by compost, but the opposite happened by compound fertilizer. On the contrary, the effect of compound fertilizer was more significant on the main components of twig essential oil than compost. The transcriptome sequencing results of P. bournei showed that the total number of DEGs in twigs and leaves treated with compost were significantly more than that with compound fertilizer. No change was found in the expression of genes regulating principal components. However, the expression of several key genes regulating the upstream substrates for the synthesis of the sesquiterpenes was significantly changed: the expression of two key speed limiting enzymes genes (DXS and HMGR) and two important branch-point enzyme genes (FPPS and GGPPS) was significantly down regulated, while the expression of gene (HMGS) was significantly up-regulated.Conclusion: The expression levels of genes (DXS2, HMGR, FPPS and GGPPS) were significantly down regulated in leaves treated with compost, resulting in the changes of the yield and main components of the leaf essential oil. The effect of compost was more significant on the synthesis of the essential oil from P. bournei leaves than that of compound fertilizer.

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Plastic Mulching or Conventional Cultivation of Lavender Flower: What Influence on the Yield, Essential Oil and Their Neuroprotective Effects?

Şekeroğlu

CİMEN

Kulak

et al. 2022

Trakya University Journal of Natural Sciences

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Lavender (Lavandula angustifolia Mill.) flowers and its distilled products are of major raw materials for cosmetic, perfumery, medicine and cleaning industries. Lavender flower production, essential oils and their qualities are affected by growing conditions and used agricultural methods. Mulching is a cultural application used for horticultural production in order to combat weeds, keep the soil temperature constant, eliminate soil moisture evaporation, provide favourable growth conditions for ample flower production, and improve the quality essential oil production. In this sense, plastic mulch application is the mainly preferred method by the growers, due to its low costs and durability. In the present study, two-year field (2014)(2015) studies were carried out to evaluate the lavender flower production, essential oil yield in both conventional (without mulch) and plastic mulching systems in city of Kilis-Turkey. The individual essential oil compounds were identified using Gas Chromatography-Mass Spectrometer (GC-MS). Essential oils obtained from dried flowers were assayed for their neuroprotective effects. According to the results, fresh and dry inflorescence yields, dry flower yields, flower essential oil contents and compositions were affected by different growing methods, including (1) plastic mulching system and (2) conventional (without mulch) system. Considering the fresh inflorescence changes, mulching increased the yield by 147.84% in the first year while no significant changes were noted between treatments. Interestingly, dry inflorescence yield did not show a significant increase for both growing systems at first year but mulching enhanced the yield by 9.87% in the second year, in related to the traditional treatment. The results revealed that dry flower was not affected by both growing systems corresponding to the years. As for essential oil content, no changes were noted for both growing systems in the first year, whilst mulching increased the content by 13.73% in the second year. As the case of agricultural yield, the neuroprotective activities of essential oils obtained from mulching conditions exerted higher inhibitory roles against Acetyl-cholinesterase (AChE), butyryl-cholinesterase (BChE), and tyrosinase (TYRO) enzymes, in relative to the traditional treatments by 81.62%, 84.12%, 73.34% in the first year and by 76.15%, 79.80% and 68.02% in the second year. Such a high variation in neuroprotective activities can be explained by changes in essential oil contents, as observed for the percentage of the compounds. Consequently, these findings reveal that mulching application significantly contributes to the increase of agricultural yield and the growing of medicinal and aromatic plants that are more resistant to changing environmental conditions and biotic stress factors.Özet: Lavanta (Lavandula angustifolia Mill.) çiçekleri ve distile ürünleri kozmetik, parfümeri, ilaç ve temizlik endüstrilerinin başlıca hammaddesidir. Lavanta çiçeği üretimi, uçucu yağlar ve nitelikleri, yetiştirme koşullarından ...

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Fertilization and Colors of Plastic Mulch Affect Biomass and Essential Oil of Sweet-Scented Geranium

Cited by 3 publications

References 34 publications

Effect of shade level and mulch type on growth, yield and essential oil composition of damask rose (Rosa damascena Mill.) under mid hill conditions of Western Himalayas

Effect of shade level and mulch type on growth, yield and essential oil composition of damask rose (Rosa damascena Mill.) under mid hill conditions of Western Himalayas

Transcriptomic Analysis of Fertilization Effects on the Biosynthesis of Sesquiterpenes in Essential Oils from Phoebe Bournei Twigs and Leaves

Plastic Mulching or Conventional Cultivation of Lavender Flower: What Influence on the Yield, Essential Oil and Their Neuroprotective Effects?

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