S.R. Tabaei-Aghdaei; M. Abootorabi Najafabadi; M.H. Lebaschi; A. Najafi-Ashtiani; A.A. Jafari; F. Sefidkon; L. Mirjani
Abstract
To evaluate biomass and oil percentage at flowering stage in different accessions of medicinal plants Satureja spicigera (C. Koch) Boiss. (spic1, spic2, spic3)and S. sahendica Bornm. (sah1, sah2, sah3, sah4, sah5, sah6)under dry farming condition, an experiment was carried out based on three-replicated ...
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To evaluate biomass and oil percentage at flowering stage in different accessions of medicinal plants Satureja spicigera (C. Koch) Boiss. (spic1, spic2, spic3)and S. sahendica Bornm. (sah1, sah2, sah3, sah4, sah5, sah6)under dry farming condition, an experiment was carried out based on three-replicated randomized complete block design in Damavand, Iran in 2014. Variance analysis showed significant differences (P<0.01) between two species for all the traits with the higher values for S. spicigera. Based on means comparison, higher dry shoot weight per plant(108.5 g) was detected in S. spicigera compared to S. sahendica with 25.82g. The highest amount of dry shoot weight per plant was obtained from spic2 accession (183.5g) in S. spicigera and from sah2 (45.51 g) in S. sahendica.Also, S. spicigera showed higher oil content (2.65%) compared to S. sahendica with 1.34%. Spic2 with the highest amount of oil (2.90%, 36.10 kg/ha) could be the best accession for cultivation under dry farming condition of Damavand. Considering lower plant canopy diameter in S. sahendica (32.19 cm) compared to S. spicigera (54.90cm), biomass and oil yield increase is possible with higher plant density. Furthermore, considering dry shoot weigh, plant height, plant canopy and day to flowering as selection indices, sah2 could be proposed as superior genotype of S. sahendica for dry land farming in Damavand or similar climates.
Z. Nemati Lafmajani; S.R. Tabaei-Aghdaei; M.H. Lebaschi; A.A. Jafari; A. Najafi Ashtiani; M. Daneshkhah
Abstract
In this research, effects of different traits on flower yield of 12 Rosa damascena Mill. accessions from different regions of Iran were analyzed under irrigation (control) and non-irrigation with and without mulch conditions. Randomized complete block designs were applied with three replications at Research ...
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In this research, effects of different traits on flower yield of 12 Rosa damascena Mill. accessions from different regions of Iran were analyzed under irrigation (control) and non-irrigation with and without mulch conditions. Randomized complete block designs were applied with three replications at Research Station of Homand Absard, Damavand, Iran. Flower weight, flower number, flower dry matter percentage, oil percentage, oil yield (per ha), petal weight, plant height and canopy cover were recorded. According to the correlation analysis, flower yield positively correlated with petal weight under non-irrigation with mulch, irrigated (control) and non-irrigation without mulch conditions. The statistical multivariate methods were also applied included multivariate linear regression and path analyses. Using three separate stepwise-regression analysis made it possible to determine the traits with most important impacts on the flower yield, under irrigation (control) and non-irrigation with and without mulch conditions. Flower number, petal weight, oil yield, and oil percentage under non-irrigation without mulch totally explained 91.7% of the variation among genotypes in the regression model. Petal weight, plant cover, and diameter of the species under irrigation (control) totally explained 98.6% of the variation among genotypes in the regression model. Oil percentage, oil yield, petal weight, plant height and flower number per ha under non-irrigation with mulch totally explained 90.6% of the variation among genotypes in the regression model. The results indicated that petal weight has the most direct impact on flower yield based on the path analysis and oil yield showed a negative direct effect on the flower yield under non-irrigation (without mulch) condition. Oil percentage, oil yield, petal weight, plant height and flower number per plant under non-irrigation with mulch, irrigated (control) and non-irrigation without mulch totally explained 95/5% of the variation among genotypes in the regression model. Petal weight had the highest direct impact on flower yield based on the path analysis under irrigation and non-irrigation conditions. Therefore, it is possible to consider petal weight as a magnificent character to improve flower yield of Rosa damascene.
A. Najafi Ashtiani; M.H. Lebaschi
Abstract
Due to correction of dry farming system and possibilities for replacement of low efficient plants, Fennel as a domestic, tolerant and valuable medicinal plant was used. Fennel (Foeniculum vulgare) is a perennial medicinal plant, which grows in 7 month per year. Its values are for medical, spice, health ...
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Due to correction of dry farming system and possibilities for replacement of low efficient plants, Fennel as a domestic, tolerant and valuable medicinal plant was used. Fennel (Foeniculum vulgare) is a perennial medicinal plant, which grows in 7 month per year. Its values are for medical, spice, health and soil conservation effects. One of the important components of Fennel is Trans-anethol, which is in the seeds. This experiment was carried out in Damavand dry land region with using a Complete Randomized Blocks Design (CRBD), in three replications. The treatments were three geographic orients with 50–55% slopes. The result shows a significant different among the seed yield which planted in the different orients. The highest yield obtains at third year with 1527 Kgha-1 in north orient and the lowest yield with 196 Kgha-1, which was related to the south orient in the first year. The north orient produced most seed yield with 1170 Kgha-1 in mean three years which was significant different with south orient. The 3 years growth of Fennel in Damavand region shows its dry farming possibility. Thus, Foeniculum vulgare could be cultivated in dry farming system as a tolerant medicinal plant, which produces economic seed yield.
K. Jaimand; M.B. Rezaee; A.N. Ashtiany
Abstract
Phenolic compounds in olive fruits are important factors to consider. These compounds are partly responsible for auto-oxidation stability and organoleptic characteristics. Moreover, they have pharmacological properties and are natural antioxidants and inhibit gram- positive microorganisms involved in ...
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Phenolic compounds in olive fruits are important factors to consider. These compounds are partly responsible for auto-oxidation stability and organoleptic characteristics. Moreover, they have pharmacological properties and are natural antioxidants and inhibit gram- positive microorganisms involved in the fermentation of olive fruits. Oleuropein, the main component that produced bitterns in olive, is a heterosidic ester of elenolic acid and 3,4-dihydroxyphenylethanol. In this study we have collected two samples in summer 2004 from washing exude of fruits Olea europaea L., after procedure for the separation of phenolic compounds extracted. Identification and determination of oleuropein compound was done by HPLC. The results showed the quantity of oleuropin in the salt water sample was 0.0010% mg/ml and in NaOH sample was 0.0016% mg/ml.
S.R. Tabaei-Aghdaei; M.B. Rezaee; A. Najafi Ashtiani
Volume 19, Issue 4 , January 2004, , Pages 349-366
Abstract
This study was conducted in a greenhouse located at the Research Institute of Forests and Rangelands. The responses of genotypes of 3 Mentha species to salinity stress regarding rooting ability as well as other growth parameters, were evaluated, using a completely randomized design, based factorial design ...
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This study was conducted in a greenhouse located at the Research Institute of Forests and Rangelands. The responses of genotypes of 3 Mentha species to salinity stress regarding rooting ability as well as other growth parameters, were evaluated, using a completely randomized design, based factorial design in 3 replications. Stem cuttings of 6 Mentha genotypes, including 28 and 3 (M. piperita L.), 6 and 31 (M. aquatica L.), and 11 and 17 (M. spicata L.) were grown in 0, 50, 100, 150 and 200 mM NaCl solutions. Rooting percentage, maximum root length, average root length, plant vigor, bud induction in saline water, maximum shoot length and shoot bud induction were measured 14, 21 and 28 days after cutting. The results showed that all of the above parameters were reduced with increase in NaCl concentration. However, there was a considerable variation for salt stress responses. All of the characteristics, particulary rooting percentage showed to be singificantly different in the salt treated genotypes, with the highest rooting ability in genotype 6 under 200 mM NaCl. Also, a positive correlation was observed between rootig percentage, as well as between the other parameters. The variation in growth components detected between genotypes, and the correlation between the traits, support a suggestion for breeding of mentha species of higher salt tolerance for cultivation under salinity stress.
