List of Articles گونه گیاهی

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  1 - Plant behaviors in response to cold stress
  maryam karimi alavijeh abdolkarim zarei
  Environmental stresses are among the main factors limiting growth and reproduction of the plants. Cold stress is one of the most important environmental stresses which incurs serious losses to different plant products and is considered as a threat to sustainable plant p More

  Environmental stresses are among the main factors limiting growth and reproduction of the plants. Cold stress is one of the most important environmental stresses which incurs serious losses to different plant products and is considered as a threat to sustainable plant production. A set of morphological, physiological, biochemical, and molecular changes that occur during the autumn acclimates plant species to the low winter temperatures. Investigation of cold tolerance mechanisms at the cellular levels is a vital step in genetic manipulations for the purpose of improving plants’ resistance against cold. The occurrence of sudden low temperatures either in early autumns or late springs incurs various damages to plants. Cold acclimation during the autumn is necessary for plants to tolerate the low temperatures in winter. Although the overall adaptive process through which plants become tolerant to the low temperature is similar, this phenomenon varies slightly according to the plant species and climate condition. Moreover, when experiencing cold stress, different plant organs show various degrees of injuries, which can be minimized following proper agricultural practices through plant reinforcement. In fact, in time strengthening of the plant and avoiding any stress source can minimize the cold stress damages to the plant. An overview of the causes of cold stress injuries and plant response mechanisms can be helpful in reducing a part of low temperature detrimental effects. Manuscript profile
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  2 - Estimation of the water requirement of several species of shrubs in the green space of Shiraz using the landscape plant factor
  Majid Abasizadeh mohammad shokrollahzadeh
  Today, the importance of water in maintaining life, especially in arid and semi-arid areas, is not hidden from anyone,.. There are various techniques to determine evaporation and transpiration, which include the use of empirical formulas, lysimeters, remote sensing and More

  Today, the importance of water in maintaining life, especially in arid and semi-arid areas, is not hidden from anyone,.. There are various techniques to determine evaporation and transpiration, which include the use of empirical formulas, lysimeters, remote sensing and satellite methods. It is micro-climatic technologies and methods of using plant transpiration coefficient. This research started in April 2014 and was completed by the middle of September 2014. Studies were conducted on three species of bay leaf (Laurus nobilis L.), rosemary (Rosmarinus officinalis L.) and oleander (Nerium oleander L.) located in the parks and boulevards of all 9 districts of Shiraz municipality. To calculate the rate of evaporation and transpiration of the target plant, first the rate of evaporation and transpiration of the reference plant was calculated using the data of the Shiraz synoptic station and the standard Penman-Mantis-FAO method, and then the coefficient (KL) was calculated based on the California method. This coefficient is the key factor in estimating the water requirement of green space. The highest rate of reference evaporation and transpiration is related to the months of August and July, respectively, and the lowest is related to the months of Bahman and January. . The highest water requirement is between June and October. In order to solve a large part of the lack of water resources mentioned, methods such as recycling and reuse of returned water, using non-conventional water sources (sewage, sewage, gray water, etc.) and surface water and runoff are suggested as solutions. Manuscript profile