Monire Maroof; Abdollah Hatamzadeh; Homaion Kave
Volume 11, Issue 3 , September 2021, , Pages 197-207
Abstract
Urban parks and green spaces, like other urban spaces, are subject to erosion and need repair to sustain their environmental and social services. Citizens' priorities should be studied when improving urban green spaces. This study aims to identify the priorities and needs of citizens regarding the improvement ...
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Urban parks and green spaces, like other urban spaces, are subject to erosion and need repair to sustain their environmental and social services. Citizens' priorities should be studied when improving urban green spaces. This study aims to identify the priorities and needs of citizens regarding the improvement of parks and public green spaces in Gorgan, Iran. The documentary and analytical survey in which data were mostly collected by distributing questionnaires among the residents of Gorgan. The results showed that the preferences of citizens varied with demographic variables and their socio-economic characteristics in some areas so that each group had its own needs. However, according to the citizens, the plant species of the parks and green spaces in Gorgan generally need to be diversified and this should be achieved by using all types of plants (broadleaf, coniferous, cover, and seasonal plants). Most people prioritized improving sanitation, supplying drinking water, and providing children's play equipment. Also, considering the needs of the disabled in the improvement of parks was the highest priority, and stone sidewalks were the most popular.
Mohammad Reza shafiei; Abdollah Hatamzadeh; Pejman Azadi; Habibollah Samizadeh Lahiji
Volume 9, Issue 2 , June 2019, , Pages 143-151
Abstract
Chrysanthemum is one of the ornamental plants that cultivated widely in worldwide. This flower is one of the most important cut and pot flowers in the world due to its high diversity of colors and shapes. The creation of mutation is an important method for the production of new cultivars, and many cultivars ...
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Chrysanthemum is one of the ornamental plants that cultivated widely in worldwide. This flower is one of the most important cut and pot flowers in the world due to its high diversity of colors and shapes. The creation of mutation is an important method for the production of new cultivars, and many cultivars have been produced through spontaneous and induced mutations. In this study, explants of leaf pieces from three most cultivated chrysanthemum varieties were irradiated with different gamma rays. This experiment was conducted as factorial in randomized complete block design with three replications. The results showed that an appropriate dose of gamma ray to produce a mutation in the varieties used in this experiment, is 25 G-ray. The obtained results showed that the 25 G-ray in purple cultivar produced the greatest change in petal color with a mutation rate of 54.56%. Meanwhile, the maximum number of new colors belonged to the purple group. Also, in the pink cultivar, the highest number of colored flowers was observed with a change of 32.11% in the 25 G-ray treatment. Based on the results of this study, four new cultivars will be introduced to the Iranian flower industry as a new cultivar.