Journal of Ornamental Plants
Volume:5 Issue: 1, Winter 2015

Carnation is an important traded crop in many countries. Postharvest senescence is a major limitation to the marketing of many species of cut flowers and considerable effort has been devoted to developing postharvest treatments to extend the marketing period. The split-plot experiment was executed based on two factors randomized complete block design with three replications to examine the effect of reflected light from the stain walls in vase life room and various concentrations of nanosilver on the longevity of cut carnation «Express». The first factor included four colors of walls (red, brown, blue, and white) and the second factor was in three different concentrations of nanosilver (0, 5 and 10 mg/l). Some traits such as vase life, °Brix, flower opening, population of bacteria in solution, water uptake, reduced dry weight, chlorophyll index, weight loss and content of anthocyanins was measured. The results showed that the color of wall has significant effect on vase life, °Brix, water uptake, flower opening, and content of petal anthocyanins (P

Oriental hybrid lily “Arabian Red” mother scales were stored in moist cocopeat and perlite (1:1) for 3 or 5 months at 25 ˚C. The numbers of scale bulblets per mother scale were nearly identical in two durations. Increasing storage duration promoted the growth of roots (number and length) and No. scales per scale bulblets. And, diameters of scale bulblets were more in longer storage duration (5 months) than 3 months. Therefore, storage duration affects size, no quantity of scale bulblets in “Arabian Red” lily. This can cause with giving opportunity to scale bulblet for more consuming the reserves of parent scale and extending the root growth, then produce greater bulblet. The results show that scale bulblets had more sucrose and glucose in 5 months, the content of fructose did not change in development process nevertheless, it seems, that has not any effect on the sprouting bulblets.

Present experiment was carried out to check the effect of different concentrations of sucrose (2, 4, 6%), GA3 (25, 50, 75 ppm) and combination of sucrose and CuSO4 (2% 200, 4% 300, 6% 400 ppm), sucrose and GA3 (2% 25 ppm), (4% ppm), (6% ppm) on keeping quality and vase life of carnation cv. ‘Eskimo’. Some postharvest characteristics such as vase life, total soluble solids (TSS), water uptake and quality change were evaluated. The experiment was laid out according to RCD (Randomized Complete Design) with three replications while for quality change it was two factor factorial. Maximum vase life in term of days was recorded in treatment T6 and T13 (8 days) followed by T4 (7.7 days). T5 & T12 were at par (7 days). Maximum water uptake was also observed in T13 (56.7 ml) followed by T6 (49.7 ml) and T8 (45 ml). Maximum TSS were found in T13 (8.3 %) followed by T6, T11 and T12. Keeping quality characteristic of T6 was deteriorated slowly as compared to other treatments. Hence, T6 was found superior in overall respects.

Narcissus is one of the very popular flowers among Iranians. This flower has a short life. To investigate the increasing of vase life of cut Narcissus, sour orange fruit extract in concentrations of 2.5, 4, 5.5 and 7 ml L-1 and sucrose in concentrations of 3, 4, 5 and 6% were used. In addition, distilled water was used as a control treatment. In this experiment, characters of vase life and percentage of unopened buds were evaluated in end of experiment, but the relative fresh weight, water absorption, soluble solids of petals and stems were measured from first to 29th day. The longest vase life was obtained in the treatment of sour orange fruit extract with concentration of 4 ml L-1 with 30.33 days and the shortest life of control was obtained with 18.33 days. Also, the least and highest percentage of unopened buds were observed in treated flowers with sour orange fruit extract of 4 ml L-1 and sucrose of 6%, respectively. The maximum amount of fresh weight, solution absorption, soluble solids of petals and stems were obtained in concentration of 2.5 ml L-1 of sour orange fruit extract. In general, results show that sour orange fruit extract and sucrose in low concentrations can be used as healthy, cheap and easy access compounds in vase solution of cut flower of Narcissus.

This review article investigates a comprehensive description of the factors, methods, strategies, approaches and prerequisites influencing in vitro micropaopagation and the amount of their use across the world. The findings presented here are the results of the study of several hundred papers published all over the world. Tissue culture techniques are routinely used for micropropagation. Enhancement of efficiency and efficacy of plant regeneration are primary goals of micropropagation. In this article, maximum and minimum use of some basic issues concerned with plant tissue culture in vitro especially micropropagation such as types of explants, types of culture media, types of sterilizing agent for explants, types of plant growth regulators (PGRs) for general studies of miropropagation, shoot and root induction, somatic embryogenesis (SE) and callus induction have been considered. Maximal application for explants, culture media and sterilizing agent are single node, Murashige and Skoog (MS) and sodium hypochlorite (NAClO), respectively. BA and NAA are the most application among cytokinins (CKs) and auxins for general studies of miropropagation. Among all PGRs used for general studies of miropropagation, NAA is on the top. BA and IBA are the most use among CKs and auxins for shooting and rooting of explants, respectively. 2,4-D, NAA and TDZ are used more than the other PGRs for induction of SE. Among all types of auxins and CKs used as singular or in combination with them for callus induction, 2,4-D is at the top level. Combination of BA and NAA is the maximum for general studies of miropropagation. This review article can help to the future studies on micropropagation due to the correct selection of the treatments.

The main purpose of this study was to determine the factors affecting the export of flowers in Iran. After data collection using by the index of Revealed Comparative Advantage (RCA), the condition of business of flowers in Iran was compared with a number of countries exporting the product. According to the results of study, the small elasticity of the exportation price in the function of export demand is negative and smaller than one, and it indicates that flowers are inelastic goods; moreover, the income from its export could be increased by increasing the price. It can be concluded that the domestic price increase will lead to a decrease in exports due to the high elasticity and negative of export supply in comparison with the domestic price. Partial elasticity obtained for the variable of the value of domestic production of flowers in the export supply function in this study indicates that uncontrolled increase production by increasing the acreage under cultivation makes the decrease of exportation price of flowers, and at the most it causes reducing of exportation income because of higher effect of low price in comparison with the effect of an increase in demand; thus, the income from the export of flowers can be increased by controlling the production and the value of export.

Salicylic acid ( SA) plays a key role in plant disease resistance and hypersensitive cell death but is also implicated in hardening responses to abiotic stress. The aim of this study is to examine the effects of salicylic acid on the growth, eco-physiological and biochemical characteristics in Zinnia elegans plant exposed to copper stress. Effects of copper (Cu) on biomass, root length and shoot height and Cu uptake are also discussed. This experiment was arranged as a factorial experiment based on completely randomized design with four replications in greenhouse conditions. The experimental treatment consisted of four levels of Cu (0, 100, 200, and 400 mg/kg in potted soil) and three levels of salicylic acid (0, 1, 2 mM) as foliar spray and chelate to soil. Results showed that with increasing levels of copper, reductions in shoot and root growth, leaf area and leaf number were statistically significant (p

This research was conducted to evaluate the possibility using peanut shells compost as a suitable medium in cultivating ornamental plants. Effect of peanut shells composts on the growth of Viola tricolor and marigold was investigated during seven months. Peat perlite (with a ratio of 2:1) used as control treatment and peat replaced by 25, 50, 75 and 100 % v/v of peanut shells compost. Plant growth indices, including height, stem, leaf fresh weights, stem and leaf dry weights were measured in marigold and Viola tricolor plants. Results showed that peanut shells compost had more effects on growth properties like height, stem and leaf dry weigh in comparison to control. The lowest growth was related to 100% peanut shells and control treatments. The most growth of Viola tricolor and marigold plants resulted respectively in 25% and 75% peanut shells compost, respectively. Results showed that increasing compost peanut shells as well as reducing the use of peat, can be effective on the growth of Viola tricolor and marigold plant.