فهرست مطالب

گیاه و زیست فناوری ایران - سال یازدهم شماره 3 (پاییز و زمستان 1395)

فصلنامه گیاه و زیست فناوری ایران
سال یازدهم شماره 3 (پاییز و زمستان 1395)

  • تاریخ انتشار: 1395/12/15
  • تعداد عناوین: 6
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  • Ali Badragheh * Page 5
    The present study aimed to investigate the empowerment of rural women in the application of risk management in the city of Semnan. This study is an applied research and experimental variable is the degree of control. Also in terms of data collection as descriptive research -Pymayshy (a. Due to the low N = 178) 1392 shall be considered. Due to low The number of samples in this study used census and the population as were selected. In order to determine the reliability of Cronbach's alpha was used, of the94 ratio, respectively. The results showed that the ability to risk management with risk-taking skills. Making decisions, poultry familiar with the sources of risk, communication channels there is no significant relationship at 99%. Results Showed that the variables (risk-taking skills in making decisions, poultry familiar with the sources of risk, communication channels) 5/73% (735/0 = The coefficient of determination R2) of the variation in the dependent variable (the risk management capabilities farms) will be determine the rest related to other factors.
    Keywords: Competence, Risk management, Poultry, The sity of semnan
  • Elham Moltallebi *, Fariba Yosefi Page 15
    Sustainable agriculture is an optimal solution to overcome the problems caused by the consumption of fertilizers is the aim of eliminating or significantly reducing the use of chemical inputs. The vermicompost is one of the most important biological fertilizers play an important role in increasing the quality and quantity, and oday will be special attention to sustainable agriculture. To evaluate the effect of vermicompost on growth parameters and chlorophyll content of strawberry plants, a factorial experiment was conducted in a completely randomized design stage. The treatments were zero, 40, 60 and 80% vermicompost with the garden soil. The results showed that the use of 40% vermicompost with garden soil, causing the efficacy and yield in strawberry plants so that all indicators of growth at 1% and the amount of chlorophyll in the level of 5% in the presence of vermicompost meaningful were.
    Keywords: Chlorophyll, Growth indices, Strawberry, Vermicompost
  • Hossein Nori *, Metanat Najafi Page 23
    One of the most important factors that affect on the toxic solution is water quality. Water makes up 95 percent or more of the toxic solution. In this study, water samples of Mazandaran Province - Noor, Fars Province - Shiraz, Isfahan Province - Shahin Shahr city, Markazi province - Mamuniyeh City, Gilan Province - Amlash City, Qazvin Province - Farsian region, Kerman Province - Kerman city, Hossein-Abad region and water piping of Shahrak, Khorasan razavi Province – Bakharz region, Chahar tagh village, Yazd Province – Yazd city and Tehran province – Shahriyar city were collected. Three common formulations in the country were studied. The formulations include, WP formulation (Captan fungicide), WG formulation (Tribenuron- methyl herbicide) and SL formulation (Glyphosate herbicide). In laboratory parameters, including water hardness, pH and EC were measured in samples of water collected. Physicochemical parameters of quality control on toxic solution consisting of all water samples and formulations were measured. Water sample, Code W-10 with hardness 2255 ppm has the highest and water sample code W-7 with hardness 60 ppm has the least water hardness.
    Keywords: Formulation, Poisons, Water hardness
  • Seyyedvahid Farhangi *, Arman Avand-Faghih, Reza Shahsavari, Babak Gharali Page 35
    European grapevine moth, Lobesia botrana (Denis & Schiffermüller) (Lep.: Tortricidae), is the main pest of grapes in Iran. Several insecticide applications are necessary for the chemical control of the pest causing severe hazards for environment and human being health. Therefore, the efficiency of mating disruption, at a rate of 500 dispensers per hectare (Isonet® L dispensers, Shin Etsu, Japan), was compared with insecticide treatment (control) during 2013 in the vineyards of Qazvin province (Iran). The capture of monitoring traps and the number of infested clusters were monitored in mating disruption and control plots. The percentages of infestations in the plots with different treatments were statistically compared by General Linear Model, χ2 and binomial distribution tests. The monitoring-trap capture rate and the percentage of infested clusters in mating disruption plot were respectively 97% and 100% less than those in control plot. The percentage of infested clusters in mating disruption plot (0%) was significantly less than that in control plot (4%) where chemical insecticides were used 2 times. The percentages of infested clusters in the centre of maiting disruption plots were either significantly less than those in the centre of control plots or there was not any significant difference between them. But in some cases the percentages of infested clusters in the borders of maiting disruption plots were significantly more than that in the borders of control plots. So mating disruption was more efficient in the centre of plots than in the borders for controlling the pest damage. The much lower population density of the pest was the principal reason for the higher efficiency of mating disruption in the region.
    Keywords: European grapevine moth, Grapevine, Lobesia botrana (Denis, Schiffermüller), Mating disruption
  • Maryam Ravanbakhsh, Shiva Azizinia *, Mahmoud Lotfi Page 45
    Fresh fruit consumption of cucumber reqired developing and breeding new cultivars bearing high fruit quality in terms of shape, flavor and taste along with storage quality to meet market demands. In order to determine and evaluate fresh cucumber quality related traits a study was conducted using randomized complete block design with three replications. 27 cucumber genotypes including seven greenhous hybrids, five opendoor hybrids, three elite lines and 12 Iranaian local gernpelasm were selected. Some quality related characters such as size, firmness and other texture mechanical properties, dry matter content, potassium content, sugar content etc. were measured. Effects of each genotype on measured characters were significant except for fruit weight, thoughness, dry matter and ash content. Deltagreen hybrid was rated as the best score for the quality of flavor and texture. Principal components analysis showed that eithty percent of the observred variability was explaimed by the first four components. PC1 reperesented mainly mechanical properties; PC2 explains chemichal and physical properties; PC3 reperesemtes mainly physical properties. In sum based on the results of current experiment, the higher quality of flavor and texure were observed in genotypes with high ratio of fruit length to fruit diameter (L/D), low ratio of fruit diameter to pelacental diameter ratio (FD/PD), moderate content of potassium, polysaccharide and soluble sugars and low firmness.
    Keywords: Cucumber, Flavor, Principal components analysis, Texture
  • Maryam Mogharehi, Vahid Abdossi * Page 55
    Carnation flower is considered one of the most important flowers due to its area under plantation and production of cut flowers. Since its vase life, under ideal conditions of preservation, is less than 10 days, from perspectives of consumers, sellers and exporters, increasing long life of flower seems to be necessary. Nowadays lots of research have been made on the effects of plant growth regulators on improvement of production, and reduction of plant wastes after flower harvest. This research was accomplished with the objective of studying the effect of different concentrations of methyl jasmonate on quantitative and qualitative features and also vase-life of postharvest miniature carnation cut flowers. The research utilized 200, 100, 50, 25 ppm levels of methyl jasmonate and sucrose 3% in three repetitions; each repetition including 5 branches and totally six treatments. The studied attributes included flowering percentage, durability, solution attraction, relative wet weight, relative water content, cell membrane stability index, total leaf chlorophyll, petal antocyanin, and superoxide dismutase (SOD) enzyme activity. Data mean comparison was made by Duncan multiple range test. The results of research explained significant difference in the measured attributes under the influence of methyl jasmonate 25 ppm compared to other treatments; also, in 200 and 25 ppm concentration a significant difference was observed. According to the obtained results, utilizing higher concentrations of methyl jasmonate is not suggested due to lower durability and long life of this flower.
    Keywords: Methyl jasmonate, Miniature carnation, Sucrose, Vase life