Showing 6 results for Mint
H. R. Roosta, A. R. Sajjadinia,
Volume 1, Issue 3 (12-2010)
Abstract
Aquaponic is a combination of fish and plant cultivated in recirculating systems. Fish culture in closed recirculating systems causes organic waste accumulation in the system. If these metabolites are used for plant nutrition, they are not mere waste, but have economical value and however benefit the fish production systems. Most aquaponic systems are designed as perlite-filled media, thin layer of nutrient solution, or Raft system. Photosynthesis parameters and water relations are good indexes for recognition of healthy plants and are used as tools for studying physiological conditions of plants. In this experiment, mint plants were cultivated in Raft aquaponic system and perlite medium. In Raft system, plant roots were suspending in water and absorbed water from pot bottom. Whereas in perlite system, roots were in the perlite medium and irrigation water was applied from top of the pots. The plants grown in Raft system showed mineral elements’ deficiency as leaf chlorosis. Photosynthesis and water parameters analysis showed that photosynthesis rate, stomatal conductance, transpiration, mezophyll efficiency, water use efficiency and photosynthesis active radiation were higher in the plants grown in perlite than in raft aquaponic system. On the other hand, stomatal conductance, leaf temperature and sub-stomatal CO2 were higher in the raft aquaponic system than perlite medium. Thus, due to better physiological conditions of mint plants, perlite medium might yield better results compared to raft aquaponic system.
H. R Roosta, F. Ghorbani,
Volume 2, Issue 3 (12-2011)
Abstract
Abstract
Aquaponic is the combined culture of fish and plants. This experiment was arranged as a factorial in the framework of completely randomized design with two factors of growing system (aquaponics and hydroponics) and plant species (Mentha piperita and Mentha sativa) with 3 replications. The results showed that most growth factors of the two species were higher in hydroponics compared to aquaponics. Aerial parts and root fresh and dry mass, leaf area and number of nodes were higher in hydroponics compared to aquaponic culture. SPAD index was influenced by the culture system and its value was higher in hydroponic system. Essential oil content of M. sativa was higher in hydroponics and of Mentha piperita was higher in aquaponics. Lower amount of Mn and Mg in Mentha sativa shoots and N, P, Mg and Mn in Mentha piperita was the probable reason for growth reduction of plants in aquaponics as compared to hydroponics.
M. Mahmoudzadeh, M.h. Rasouli Sadaghiani, H. Asgari Lajayer, F. Sefidkon,
Volume 7, Issue 2 (8-2016)
Abstract
This experiment was carried out to study the effect of plant growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF) on essential oil content, yield and composition of shoots in peppermint (Mentha piperita L.), based on completely randomized design with three replications, in the Research Greenhouse of Faculty of Agriculture, Urmia University, in 2010. Inoculation with three species of PGPR (Azotobacter, Bacillus and Pseudomonas) and three species of AMF (Glomus mosseae, Glomus intraradices and Glomus fasciculatum) and control (no bacterial or mycorrhizal inoculation) were the experimental treatments. Results revealed that the highest essential oil content (2.77%) and yield (0.259 ml per pot) was obtained in Glomus fasciculatum and Pseudomonas treatment, respectively. Chemical analysis of the essential oil showed that in all the treatments, the main components of the oil were menthol, menthone, isomenthone, 1,8- cineole, pulegone and menthofuran. The highest values of menthol (42.27%), menthone (19.33%), isomenthone (16.77%), 1,8- cineole (10.16%), pulegone (7.34%) and menthofuran (6.61%) were obtained in control, Glomus mosseae, Bacillus, Azotobacter, Glomus intraradices and Pseudomonas, respectively. Comparison of terpenoids content indicated that the amount of oxygenate monoterpene increased with application of Glomus mosseae, Glomus fasciculatum, Bacillus and Pseudomonas and hydrocarbonate monoterpene with Glomus fasciculatum, Glomus intraradices and Azotobacter. Total amount of monoterpene and hydrocarbonate sesquiterpene increased in all the treatments. In general, the results showed that different bacterial and fungal treatments have different effects on chemical composition of the essential oil of peppermint. Therefore, to achieve the needs of different industries for specific chemical profile of peppermint essential oil, it can be suggested that this plant be inoculated with bacterial and fungal treatments to get the desired chemical components.
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Volume 8, Issue 1 (4-2017)
Abstract
To study the effects of drought stress and soil application of beet bagasse on biochemical characteristics, photosynthetic pigments content and antioxidant activity of peppermint (Mentha piperita L.) leaf, a pot experiment was conducted in 2015 at Ferdowsi University of Mashhad. The experiment was carried out as a factorial experiment based on completely randomized design with four treatments of drought stress (30, 50, 70 and 90% of field capacity) and three levels of soil application of beet bagasse (0, 10, 20% by volume) in 3 replications. The results showed that the highest amounts of chlorophyll a, chlorophyll index, ratio of chlorophyll a/b, carotenoid and relative water content were obtained in 90% stress of field capacity and 20% application of beet bagasse, so that increasing stress levels reduced the aforementioned characteristics. Furthermore, the application of bagasse created significant changes in the above characteristics. The highest contents of chlorophyll b, total chlorophyll, antioxidant activity and electrolyte leakage were obtained in 30% drought stress of field capacity and without use of sugar beet bagasse treatment, so that was equal to 47/19, 49/48 mg/kg fresh weight, 91/2% and 75/93%, respectively. Application of beet bagasse at this level of drought stress caused a significant reduction in these traits. Based on the results obtained, it is clear that application of beet bagasse in the medium due to high water absorption and retention, improves biochemical traits and photosynthetic pigments in the peppermint.
M Parsa, B Yousefi, R Kamaei,
Volume 11, Issue 2 (8-2020)
Abstract
In order to evaluate the effect of various irrigation regimes and different fertilizer combinations on some morphological and physiological traits of Mentha piperita, a greenhouse experiment was carried out at the research greenhouse of Ferdowsi University of Mashhad, during growing season 2017-2018. The experiment was conducted in factorial experiment based on completely randomized design with three replicates. Factors were consisted of different irrigation regimes levels: 100% FC, 75% FC and 50% FC, and different biological and chemical fertilizers combinations including:1-biochemical bacterial NPK + NPP, 2- NPP bio-fertilizer, 3-NPK, 4-micronutrient fertilizer (MIC), 5-MIC + amino acid fertilizer (AP). The results showed that interaction of irrigation regimes and different biofertilizers on leaf area, height, branch number and stomatal conductance and RWC had different significant at 1% and 5% level respectively. The highest leaf area (1353 centimeters square), Maximum height (42 cm) and the highest number of branches (37) were obtained in irrigation of 100% FC and NPK + NPP combination fertilizer treatments and the highest stomatal conductance (99 mmoles per second) and the highest RWC (82.6%) were obtained in 100% FC irrigation and NPP fertilizer treatments. Also, the results of variance analysis showed that the main effects of irrigation regimes and fertilizer types on dry weight, electrolyte leakage, spade number and essential oil percentage were significant at 1% level, but their interactions were not significant. The highest dry weight (17.7 g) and spade (49.8) were observed in FC 100% irrigation and NPK + NPP combination treatment, the highest electrolyte leakage (70.2%) and percentage of essential oil (2.9%) were observed in irrigation of 50% FC and NPK + NPP combination fertilizer treatments. The results of this study showed that the use of bacterial and chemical fertilizers in the complete irrigation regime increased morphological and physiological traits. Also, the results showed that the use of biofertilizers less increased the amount of electrolyte leakage under drought stress compared to other fertilizer treatments.
M. Yaghobvand, H. Mumivand, A. Banan, M.r. Raji,
Volume 12, Issue 3 (12-2021)
Abstract
The present study was conducted with the aim of symbiotic integration of Cyprinus carpio and five species of mint in the aquaponics system. The experiment was performed as a split plot design in time. Mentha species including Mentha aquatica, Mentha pulegium, Mentha spicata, Mentha suaveolens and Mentha piperita were considered as the main plot and harvest times (first and second) were used as sub-plots. The highest leaf number, internode length, number of stolon and leaf area were belonged to M. aquatica. On the other hand, M. aquatica, M. piperita and M. pulegium showed the highest shoot dry weight and stem diameter, while, the highest dry weight of stem and plant height were obtained in M. pulegium. The highest leaf/stem ratio was also observed for M. suaveolens, M. spicata and M. aquatic, respectively The highest relative water content (RWC) was related to M. piperita, which was not significantly different from those of M. aquatica, M. spicata and M. suaveolens. The highest greenness (SPAD) index was obtained in M. aquatica and M. piperita. Almost all of the studied traits including leaf fresh weight, stolon fresh weight, shoot fresh weight, leaf number, plant height, number of stem, leaf area, RWC and SPAD index were higher in the second harvest of mint species. Overall, M. aquatica and M. piperita showed a better performance than other species in terms of most of the studied traits and may be recommended for cultivation in the aquaponics system.
