جستجوی مقالات مرتبط با کلیدواژه "آویشن (thymus vulgaris l" در نشریات گروه "باغبانی"

In order to evaluate the effects of medicinal plants (Thymus vulgaris L., Rosmarinus officinalis L., Lavandula angustifolia Mill., Mentha piperita L.) with melon intercropping on pests control and fruit yield in melon, and to reduce the use of chemical pesticides, a factorial experiment was performed based on a completely block randomized design with three replications in 2017. Experimental factors included two melon cultivars ("Khatoni" and "Khaghani"), chemical control and four medicinal plant species (thyme, rosemary, lavender, and peppermint) that were cultivated as additive intercropping among melon bushes. The ANOVA results showed that the effects of cultivar on weevil (Acythopeus curviostris) population, number of healthy and damaged fruit and fruit weight, the effects of intercropping on weevil, whitefly and aphid population, number of healthy and damaged fruit and fruit weight, and the interaction effects of two factors on weevil and aphid population and number of healthy and damaged fruit were significant at 5% probability level. Based on the results of the experiment, chemical control had the greatest effect on pest population control in both melon cultivars. Among the intercropping treatments, peppermint had the greatest effect in reducing the weevil population in both melon cultivars. Moreover, intercropping of "Khatoni" with peppermint and "Khaghani" with peppermint, lavender, and rosemary had positive effects on reducing the aphid population. However, intercropping of both melon cultivars with all four medicinal plant species had no effect on whitefly population control. Based on the results of this study, and in order to keep the sustainability of crop ecosystems, intercropping of melon with some medicinal plants such as peppermint can be considered to reduce the population of some pests on melon.

The tuberose (Polianthes tuberosa L.) is an ornamental plant related to the agaves, planted around the word. The main purpose of this study was to investigation of various concentrations of Thymus vulgaris L., Rosmarinus officinalis L., and benzyl adenine on longevity and durability of tuberose cut flowers. After extracting herbal extract and GC analysis, cut flowers were transferred to vessels containing preservative solutions. Then flowers were located in the controlled room. A factorial experiment in randomized complete block design with three replications was carried out in this research. Design include effects of treatments on quality of flowers, percent of total dissolved solids, water absorbance, stem bending, flower diameter, fresh weight and dry weight. GC analysis indicated that there were some compounds in the extracts increasing the shelf life of cut flowers. The most longevity (13.75 days) was related to treatment of interaction of thymus extract (10%) and 50mg/l benzyl adenine. In conclusion, treatments of benzyl adenine and thymus extract inhibited the growth of microorganisms in preservative solutions that resulted in increased post-harvest longevity.

In this study, the effect of probiotics, extract powder of thyme (Thymus vulgaris L.) and licorice (Glycyrrhiza glabra L.) were investigated on blood parameters, immune response, carcass characteristics and performance of broilers. Three hundred and thirty six broiler chicks (Ross 308) were housed in a completely randomized design with six treatments, four replicates and 14 birds in each experimental unit and reared on litter for 42 days. The treatments consisted of 1) basal diet probiotic Hyprozyme, 2) basal diet Bactocell, 3) basal diet Prophyt (extract powder thyme Hyprozyme licorice), 4) basal diet Phytobiotic (extract powder thyme licorice), 5) control and 6) basal diet antibiotic. The experimental diets were fed from day one until end of the experiment (day 42). Statistical analysis of data showed significant difference (P≤0.05) of FCR in probiotic Hyprozyme group ratio compared to the control group. Feed consumption was lowest (P≤0.05) in treatment 1 compared to others. The treatments had no significant effect on carcass characteristics. The relative weight of bursa Fabricius in antibiotic supplemented group was significantly different with treatment 3 (P≤0.05). Statistical analysis of the results showed significant difference (P≤0.05) of serum cholesterol in Bactocell group compared to control group. Addition of Haprozym to basal diet significantly increased (P≤0.05) the total protein and triglyceride levels compared to control group. Serum globulin was statistically higher (P≤0.05) in treatments 1, 3 and 4 compared to control group. The highest antibody titer against SRBC was observed in Bactocell group compared to control group (P≤0.05). Overall, it can be stated that the use of resources such as hypro-zyme (732gr/ton) and phytobiotic can be introduced as antibiotic alternatives in poultry production.

Water deficit stress, permanent or temporary, limits the growth and the distribution of natural vegetation and the performance of cultivated plants more than any other environmental factors. Mechanism involved is still not clear. Thyme (Thymus vulgaris L.) is an important medicinal plant in perfume and medical industry. In this research, the effects of water deficit stress on growth, yield, metabolites compatible (prolin) and oil composition of thyme (thymol) were studied. Complete randomized block design with 4 treatments and 4 replications have been used in 2006. Water deficit levels included control (100% field capacity), mild stress (85% field capacity), medium stress (70% field capacity) and severe stress (55% field capacity). The statistical analysis showed that water deficit had significant effect on growth parameters, yield biomass, prolin and thymol. Water stress decreased plant height, number of secondary branches, dry and fresh weight growth and root mass, dry and fresh weight root and length root. In addition, thymol percentage and prolin content increased with severe stress (55% field capacity). Morphological yield with secondary metabolites prolin and thymol were obversed with water deficit changes.

The present study was designed to evaluate comparison of the effects on the intestinal microflora population and immune system of broilers of three commercial herbal extracts and virginiamycin antibiotic. A total four hundred and eighty 1-day old male broiler chicks were assigned to the basal diet (control) and basal diet supplemented with 150 ppm virginiamycin, 0.1% extract of thyme (Thymus vulgaris L.), coneflower (Echinacea purpurea (L.) Moench.), garlic (Allium sativum L.) and blend of extracts with the same dose. The colony forming units of Escherichia coli in digesta of ileo-cecum in the blend group showed a significantly lower number compared with control group. However, there was no difference in E. coli counts between blend group and others except control. The lactic acid bacteria counts in the thyme group increased compared with other groups except coneflower (p<0.05). Relative weights of immune organs (spleen and bursa of Fabricious) as two immune indexes were compared among different groups. Relative weight of bursa of Fabricious in the Garlic group showed a significantly increase compared with other groups, but relative weight of spleen was unaffected by treatments. Cutaneous basophils hypersensitivity response (to phytohemagglutinin injection) and antibody responses to sheep red blood cells were higher in coneflower group (p<0.05). Antibody responses to Newcastle vaccine (Lasota) was unaffected by treatments but coneflower group improved antibody levels (p>0.05).