Path analysis of the essential oil‐related characters in <i>Mentha</i> spp.

Mirzaie-Nodoushan, H.; Rezaie, Mohammad‐Bagher; Jaimand, Kamkar

doi:10.1002/ffj.1007

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…This means that there is a positive direct relationship between stem girths and phylloclades in terms of oil yields whereby young and small growing stem girths with associated phylloclades can produce a low amount of oil while old and large stem girths with associated phylloclades can produce a high amount of oil. The obtained results were in agreement with the results of Mirzaie-Nodoushan et al. (2001) which reported that stem diameter was among the factors that had a positive direct effect on leaf essential oil yield in Mentha spp .…”

Section: Discussionsupporting

confidence: 92%

Oil yield from Euphorbia tirucalli as an alternative bioenergy source in Tanzania

Nchimbi

2021

Heliyon

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Due to the worldwide increase in the demands for bioenergy sources to replace fossil fuels. Euphorbia tirucalli oil produced by stems and modified leaves (phylloclades) is a valuable liquid fuel as an alternative energy source for biofuel production. In this study, E. tirucalli oils were extracted from stem barks with varying stem girths (20cm–80cm) and fully grown apical phylloclades. Soxhlet apparatus was used in oil extraction according to Luque de Castro and García (2000). The percentage (%) oil yield was calculated by the weight of extracted oil to the total weight of the dried sample (20g). The study hypothesized that significantly higher oil yields would be obtained from larger stem girths than phylloclades of the same trees in different Agro-Ecological Zones (AEZs). Likewise, the difference in oil yields was higher in the Semi-arid AEZ than in the Southern highland and the Coast AEZs (p > 0.05). Results showed slightly higher oil yields from large stem girths [16.47% ± 0.34%/(20g) max ≡ 82.35% ± 0.34%/(100g) max] than phylloclades [15.7% ± 0.49%/(20g) max ≡ 78.5% ± 0.34%/(100gmax] in different AEZs. Oil yields from Semi-arid [82.35% ± 0.34%/(100g) max and 78.5% ± 0.49%/(100g) max] were slightly higher than Southern highland [79.0% ± 0.34%/(100g) max and 76.4% ± 0.49%/(100g) max] and the Coast [76.4% ± 0.34%/(100g) max and 70.25% ± 0.49%/(100g) max] AEZ. But the difference in oil yields was not significant (p > 0.05). Results exhibited increasing patterns in the percentage (%) oil yields from low (20cm) to larger (80cm) stem girths. High oil yields between stem girths (82.35%) and phylloclades (78.5%) suggest that E. tirucalli oil is suitable for liquid biofuel production as an energy source in Tanzania.

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Section: Discussionsupporting

confidence: 92%

Oil yield from Euphorbia tirucalli as an alternative bioenergy source in Tanzania

Nchimbi

2021

Heliyon

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“…Although the yield of most crops, particularly medicinal plants, has increased over the past decades, but the morphological and physiological processes underlying this increase of yield are not well identified 57 . Researches revealed the positively correlation between the physio morphological traits and yield of medicinal plants including Mentha pulegium , Peppermint ( Mentha piperita ) and Thymus vulgaris 58 , 59 . It has been reported that the application of 30 t ha −1 of manure under Eco environmental scenario caused high availability of N, P nutrients for plant, and improved crop productivity.…”

Section: Discussionmentioning

confidence: 99%

An exploratory method to determine the plant characteristics affecting the final yield of Echium amoenum Fisch. & C.A. Mey. under fertilizers application and plant densities

Amiri

Jahan

Moghaddam

2022

Sci Rep

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Employing of advanced statistical methods to quantify agricultural information has helped to carry out targeted planning to alleviate the problems of farmers, researchers and policy section. One of these exploratory methods, is multivariate statistical analysis that examines and models the relationship between variables. Considering the importance of Echium amoenum and its use growing trend in traditional medicine and the pharmaceutical industry, also the lack of information on the correlations between its yield and morpho physiological traits, the objective of this study was to determine the causality path in which the Echium amoenum characteristics affects the yield of Echium amoenum as regards of application of organic and chemical fertilizers under different plant densities. The employed method revealed that organic fertilizers increased flower yield compared with the control. The flower yield as a result of application of compost, vermicompost and cattle manure were increased by 25, 28, and 27% compared with the control, respectively. The results of multiple regression showed that variables of plant height, shoot dry weight, flower number per plant were the main factors affected the flower yield. The relative contribution of shoot dry weight was 16 and 25% more than plant height and flower number per plant, respectively. Causality analysis identified that shoot dry weight per plant had indirect effect on flower yield in different paths, as mainly was imposed through plant height considering the path coefficients. This study suggests that optimum production of Echium amoenum with application of ecological inputs along with effective agronomical managements of the causal paths of flower yield forming, including increase in shoot yield and plant height could be achieved through an ecological cropping system with reduced costs and no health concerning due to agrochemicals residual.

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“…Khadivi-Khub et al [19] reported that the most variable morphological characteristics among the studied populations of S. lavandulifolia were inflorescence length, internode length, leaf shape, crown color, and flower bowl shape. Also, Mirzaie-Nodoushan [20] reported significant differences in morphological characteristics (plant height, stem diameter, number of branches, leaf length, and width) on different species of mint (Mentha spp. ), quite similar to our findings.…”

Section: Discussionmentioning

confidence: 99%

Stachys lavandulifolia Populations: Volatile Oil Profile and Morphological Diversity

et al. 2022

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The morphological and essential oil diversity of Stachys lavandulifolia populations from the west and northwest of Iran were evaluated. The results showed a significant difference between the populations for nearly all the evaluated traits. The broadest variation ranges were recorded for the auxiliary shoot length, leaf length in the main branch, and the number of flowers in the inflorescences. Furthermore, cluster analysis divided 13 populations into four separate groups. GC/MS analysis verified the presence of 28 components comprising up to 94/4% of the oils. The dominant constituents were α-pinene (1.07–34.87%), (E)-caryophyllene (0.45–25.99%), germacrene D (3.36–20.61%), Δ-cadinene (2.82–19.90%), bicyclogermacrene (1.72–12.08%) α-terpineol (0–11.86%), α-muurolol (0.31–11.50%), p-cymene (0.67–9.67%), β-elemene (0.63–9.31%), and sabinene (0.32–6.29%). The results revealed that natural habitats and the related geo-climatological cues influenced morphological traits and oil composition. Considering the substantial environmental variations and the broad diversity, there would be a rich selection pool for the traits of interest. The populations are a step forward in the breeding programs for the highlighted essential oil constituents needed by the pharmaceutical and related industries. Furthermore, with the future comparative study of the populations from all Iranian territories and the neighboring countries, we will have a realistic idea of the coming conservational and exploitation programs.

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Path analysis of the essential oil‐related characters in Mentha spp.

Cited by 14 publications

References 6 publications

Oil yield from Euphorbia tirucalli as an alternative bioenergy source in Tanzania

Oil yield from Euphorbia tirucalli as an alternative bioenergy source in Tanzania

An exploratory method to determine the plant characteristics affecting the final yield of Echium amoenum Fisch. & C.A. Mey. under fertilizers application and plant densities

Stachys lavandulifolia Populations: Volatile Oil Profile and Morphological Diversity

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