فصلنامه گیاه و زیست فناوری ایران
سال نهم شماره 3 (پاییز و زمستان 1393)

For study the effect of silisum spray in rosa flowers, experiment in a completely randomized design with 7 treatments included 3 replications and each replications with 3 pots were conducted. Treatments include sodium silicate, calcium silicate and potassium silicate, each with two levels of 25 and 50 ppm and the pot was considered as control without spraying. Pots, two times in the first week of spraying was conducted on the same basis. Morphological traits such as flower fresh weight, flower dry weight, flower diameter, stem diameter and flowers stem lenght were evaluated. The results showed that the treatment of CaSi 50 ppm had the greatest effect on correction the traits. Result at 1% statistical level had significant effect.

Chrysanthemums with scientific name, Chrysanthemum a plant of the Asteraceae/ Compositae family and spray carnation with scientific name, Dianthus Caryophyllus of the Caryophyllaceae in Iran and the world of high economic value. Flower stem solidity, importance in longevity and marketing goals and improve their quality. Pre harvest spraying Nano Ca and Nano Si have a important role in Flower stem solidity. In this research, Nano Ca and Nano Si, each with tree levels of 10,20 and 40 mM and the pot without spraying was considered as control. Pots, tree times in the week of spraying was conducted on the same basis. quantitative and qualitative traits such as flowers longevity on plant, flower fresh weight and dry weight, phenyl alanin amonialyase and superoxid dismutase activity, leaf si and ca, were evaluated. The results showed all of evaluated traits at 1% statistical level had significant effect.

The aim of this study was investigation the effects of garbage leachate compost on concentration of some soil solution anions in the different irrigation methods. The research was done by Split Split plot statistical design in randomized complete blocks design with three main treatments (irrigation) and two sub treatments (depth) and three times in the six-month periods. Main treatments include N: irrigation with well water such as control, I: Periodicity of irrigation with leachate and well water, C: mixing leachate and well water (25% leachate 75% well water) and sub treatments was including DI: surface drip irrigation and SDI: sub-surface drip irrigation. For targeted irrigation, in the plots building, planted the 36 Seedlings of PlatanusOrientalis and Robinia Pseudoacacia Umbraculifera with 2 years old randomly in the land with dimensions of 38 × 10 meters to the edge of the earth, and every tree seedlings were planted 2 meters and treatment operations began 4 months after the plants. The results showed a significant difference between periodicity and complex treatments with control one in the time duration, depth of applied leachate and irrigation management at the 5% level of Duncan test. The maximum amount of HCO3 -, SO4 2-, Cl- and Na in the mixing leachate and well water treatment compared to control treatment respectively achieved 10.8, 45.5, 56.6 and 25.82 percentages. Test results also showed that the amount of potassium in periodicity and complex treatments respectively 3.5 and 1.5 times increased compared to control. According to the results, the incorporation of compost leachate with irrigation water in the root zone of the plant to provide better environmental conditions, water and nutrition’s need in this zone and soil quality modification in the land space belt of cities with subsurface drip irrigation method seemed appropriate.

Gerbera with scientific name Gerbera jamesonii belong to compositae family most important cut flowers all over the world. In recent years production and attention to it in Iran and world markets has increase. Amino acids biostimulative role in plant growth, shoot growth, increase plant resistance in the event of environmental stresses, accelerating the formation and development of organs, increase nutrient absorption, increase chlorophyll and chlorophyll production play. In the present study, the effect of the amino acids Glutamin, Arginin and Phenylalanin on physiological characteristics, morphological and enzymatic were evaluated gerbera flower pot c.v sorbet. In this experiment Glutamine, Arginin and Phenylalanin each with two doses of 50 and 100 ppm was use. The treatments were compared with control treatment(distilled water). This experiment, A completely randomized experimental design with 7 treatments, 3 replication, each replication contains 3 units on gerbera flower pot c.v sorbet was performed. Trait evaluated include the fresh weight, dry weight, number flower, leaf surface, cell membrance stability index, anthocyanine content, activity of enzymes phenyl alanine ammonia lyase(PAL) and longevity of flowers on the plant. this study in the summer of 2016 in commercial greenhouse located in the city PAKDASHT with an average daily temperature of 18° C and 28° C at night, relative humidity 60% and light intensity was 300 foot candle was performed. The results of the research and analysis of variance table 1 showed that the effect of treatments on all traits evaluated at different concentrations treatment is significant at 1% level. Glutamine 100ppm treatment and control treatment showed statistically significant difference with other treatments Duncan grouping. The result showed that the glutamin treatment 100ppm the greatest effects on improving all the traits than other treatments. Flower longevity on plant in glutamin 100ppm 20 days and in the control 14 Days. The results of this study indicate that the use of glutamine as a source of organic nitrogen plays a role in growth and differentiation of plant cells that eventually leads to more fresh weight, dry weight and number of flowers was. The use of glutamine induced physiological changes in gerbera flowers that stimulate plant growth, increase cell membrane stability index and petal anthocyanins. N also the top supplier of high intensity of photosynthesis and thus faster growth rate and ultimately increase the leaf surface. Glutamine also increases the PAL activity, which ultimately increases the strength and durability of gerbera stem on the plant.

The effects of pulse Putrescine, spermine and spermidine, on cut Rose was studied. Putrescine, spermine and spermidine in the two levels 100 and 200 mg 1- were tested. This study was conducted in a factorial experiment with complete randomized design on 120 Rose cut flowers in horticulture laboratory of agriculture faculty of Islamic Azad University, Science and Research Branch branch. The recorded traits included vase life, protein content, anthocyanin and water absorption. The results showed that 200 mg 1- spermine treatments increased cut flower vase life, protein content, anthocyanin and water absorption.

This paper reported the effectes of salicylic acid (SA), sucrose and citric acid on the vase life of cut Gerbera jasmesonii.In this paper salicylic acid (1.5,2.5 and 3.5 mM), citric acid (0 and150 mg-1) and sucrose (0, 3%) were prepared to make up fresh-keeping agents. The effects of salicylic acid on the total vase life, MDA and ACC-Oxidase were investigated. The experimental results showed that SA treatment were good at maintaining cut-flower water, descrease MDA and ACCoxidase, increase the fresh weight, reduce the membrane premeability, delayed senescence and reduction in peroxidation of lipids. Maximum of flower vase life was related with 2.5 mM SA 150 mg-1 citric acid sucrose (3%) in compared to control. In treatments which had more longevity, increasing of fresh weight and water uptake were more and there was a direct relationship between them.