Shahram Sedaghathoor- Professor
- Professor at Islamic Azad University Rasht Branch
Shahram Sedaghathoor
- Professor
- Professor at Islamic Azad University Rasht Branch
About
90
Publications
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Introduction
Shahram Sedaghathoor’s research includes different aspects related to horticultural science. First, he was tea plant researcher. Shahram was obtained his Bachelor of Science and Master of Science degree at Tabriz University (Iran). He received his PhD in Horticulture at the Science and Researches branch, Islamic Azad University, Tehran, Iran. He is currently Professor of Horticultural Science at Rasht branch, Islamic Azad University.
Current institution
Publications
Publications (90)
This research was conducted to compare the quality and nutritional profile of temperate fruits cultivated in conventional and organic orchards. Sampling was done in Iran from four orchards (two organic and two conventional). Ten fruits were sampled in three replicates in each of the organic and conventional orchards. Some traits such as the content...
Plants and animals contain many steroid compounds that act as signaling molecules during complicated growth and development processes. Mammal sex hormones (MSHs), such as progesterone, estrogen, and testosterone, are another class of steroids. These hormones play an important role in regulating the mammals’ growth and reproduction processes as well...
i>Cephalanthera rubra (L.) Rich. is an orchid species in danger of extinction. In vitro conservation of this species has not been reported earlier. The aim of this study was to evaluate the effect of encapsulation-dehydration pretreatment on the survival percentage of cold preserved and cryopreserved shoot tips. Plant cryopreservation at ultra-low...
The current status of environmental pollution by heavy metals (HMs) will affect the entire ecosystem components. The results obtained so far indicate that some plants can be effective in removing toxic metals from the soil. For this purpose, the phytoremediation ability of three fleshy ornamental plants; cactus (Opuntia humifusa), kalanchoe (Kalanc...
One of the effective approaches to reduce heavy metals (HMs) contamination is phytoremediation. The concentration of 10 HMs was measured in 10 ornamental plants grown in the city of Bushehr, located in southern Iran. The concentration of HMs was determined by ICP-MS. Some physiological parameters and antioxidant enzymes activity were measured. Boug...
One of the most important abiotic stresses and limiting factors (closing pores, lack of CO2 entry, reduced photosynthesis, and reduced yield) of plant products around the world is water-deficit stress. This study aimed to examine the water deficit stress and foliar application with anti-stress compounds (ASC) on characteristics of Viola odorata. The...
Today, the excessive use of chemical fertilizers and drought stress are the biggest challenges of agriculture. New research has shown that the alternative use of amino acids reduces the harmful effects of using chemical fertilizers. Hence, the effect of elicitors was studied on the physiological traits of marigolds in a two-factor factorial experim...
Most fruit trees in temperate regions are exposed to chilling, which causes extensive economic losses. Low temperatures reduce biosynthesis activity of plants and the functioning of physiological processes, impose irreparable injuries, and finally, destroy the plants. So, to study chilling tolerance of three genotype of persimmon by electrolyte lea...
Asparagus umbellatus is one of the most popular cut foliage plants that widely used in decorations and bouquets. However, there was a lack of information concerning Asparagus postharvest handling. Therefore, in this study, two growth regulators gibberellic acid (GA) and salicylic acid (SA) on concentrations of 0, 100, 200, and 400 μM were applied i...
Drought stress is the most important factor limiting the successful production of agricultural crops worldwide. The response of some almond cultivars grafted on GF677 rootstock was studied to drought stress at a research greenhouse in the Horticultural Science Research Institute of Karaj, Iran, in the 2016-2017 growing season. The plant materials i...
Prunus avium L. is one of the most important temperate zone fruits in the world. Most of the cherry cultivars always have difficulties of fertilization and fruit set due to self-incompatibility, so they need suitable and compatible pollinizers for commercial fruit production. In this experiment, pollination compatibility of cherry cultivars of ‘Nap...
Olea europaea L. is a tree that is adapted to different soil conditions and can grow and produce fruits in relatively saline soils so that it has been mentioned as a plant species that is semi-resistant to salinity. Today, attention is increasingly drawn to the use of organic fertilizers to enhance yields with no environmentally destructive impacts...
Citrus growth is often constrained by salinity, but citrus rootstocks respond to salinity differently. A greenhouse study was carried out in a completely randomized design with three cultivars of mandarin (‘Younesi,’ ‘Clementine,’ and ‘Yashar’) and four levels of salinity (control, 1, 3, and 5 dS/m) in three replications to explore the mechanism by...
Olives are evergreen trees with a low growth rate that are cultivated in semi-tropical climates. The biochemical properties of three olive cultivars were explored under the foliar application of amino and organic acids in a two-factor factorial experiment based on a randomized complete block design with three replications in Rudbar County, Iran. Th...
BACKGROUND: The strawberry is an important commercial crop, the improvement of its yield and quality is an imperative task. OBJECTIVE: The present research aimed to study the effect of colored netting and foliar application of amino acids on the physiological characteristics of strawberries subjected to different irrigation intervals. METHODS: The...
Tulip (Tulipa sp.) is of the highest economic importance and cultivated area among all bulbous ornamental species. The spray of alcohol is regarded as a proper strategy to improve plant yields in sustainable agriculture systems. This study aimed to investigate the effect of different rates of ethanol and methanol on the traits of the tulip in a fac...
Salinity is one of the most important limiting factors in plant growth. It is also a predominant constraint that impairs grass growth and quality. Plant hormones play important roles in the capability of plants to adapt to environmental stresses. Hence, the impact of two plant growth regulators (PGRs) i.e. salicylic acid (SA) and progesterone (P4)...
Phalaenopsis amabilis Blume var. grandiflora Bateman is economically important as cut and pot flower. Polyploidy is considered as a valuable tool in improvement and evolution of ornamental plants. Protocorm-like bodies (PLBs) of P. amabilis were cultured on Murashige and Skoog medium containing 0.20 mg L-1 IBA together with 2.00 mg L-1 KIN and 1.00...
Some data presented in Table 2 in the original publication are incorrect, and the author would like to correct Table
The green space of parks with its vegetation population of trees and shrubs plays a key role in air purification and the absorption of air pollutions, thereby contributing to the alleviation of environmental pollutions. The present factorial experiment was carried out in urban parks with 18 treatments. The leaf samples of 18 ornamental species were...
Trees and shrubs of green spaces can tolerate some physiological parameters. They can adapt to climatic conditions, hence, reduce air pollution and can be used as biological indicators in various researches. The present study aimed to explore the impact of urban air pollution on some parameters such as fresh, dry and turgor weight, amounts of chlor...
Impatiens hawkeri is among the three important bedding plants in the world. There is no efficient protocol for fast micropropagation of Impatiens hawkeri cv. Sweeties Blue Star. Single nodes were germinated on Murashige and Skoog (MS) medium supplemented with 1-naphthaleneacetic acid (NAA; 0.00, 0.10 and 0.50 mg l-1), 6-benzyladenine (BA; 0.00, 0.1...
In planning for sustainable development of urban green space at the macro and regional levels, it is imperative to examine plant species of urban green spaces and to introduce new species considering climatic conditions, environmental pollution, industrial lifestyle, and resource limitations. The present study employs multi criteria decision making...
The effect of different substrates and deficit-irrigation intervals were explored on the physiological parameters of 3 Cordyline terminalis cultivars in a factorial experiment with 3 factors including 4 substrates, 3 irrigation intervals (2, 7, and 10 days) and 3 cultivars (green, red, and tricolor) in 3 replications. The results showed that plants...
Wild population of Fritillaria imperialis Lubra Maxima is at the risk of extinction, mainly because of many harvesting and pest and pathogens infestation. Therefore, this plant needs urgent protection. Here and for the first time, this study aimed to evaluate the efficiency of in vitro storage techniques (cold preservation and cryopreservation by e...
The effect of silver thiosulfate (STS) and putrescine was studied on the vase life and quality of cut chrysanthemum in a factorial experiment based on a randomized complete block design. The experimental factors were composed of silver thiosulfate at four levels (0 or control, 0.02, 0.05 and 0.1 mM) and putrescine at three levels (0 or control, 150...
The effect of salicylic acid (SA) and progesterone (P4) on physiological and biochemical parameters of Kentucky bluegrass under salinity stress was assessed. A factorial experiment was established based on a randomized complete block design with four replications, under greenhouse conditions. The experimental treatments included four levels of sali...
Kentucky bluegrass (Poa pratensis L.) was exposed to salinity in the factorial study with 2 factors including salinity [irrigation with tap water and saline water with the EC (Electrical Conductivity) of 2, 4, and 6 dS/m] and progesterone and SA (no hormone, 1 mg/L progesterone, 10 mg/L progesterone, 1 mM SA, 3 mM SA, 1 mg/L progesterone + 1 mM SA)...
The productivity of plants is generally influenced by the environment, the physiology of plant species and their management, species genetics, and their interactions. The present research aimed to assess the effects of various pollen sources ('Boliba' , 'Gerche' , and 'Daviana') on physical and chemical traits of nuts in some dominant cultivars ('G...
The effect of salinity and drought stresses on three hedge shrubs was studied in a factorial experiment based on a Randomized Complete Block Design with three replications. The studied treatments included salinity at four levels (tap water, 100 mM NaCl, 150 mM NaCl, and Sea water), irrigation at three levels (irrigation intervals of 3, 7 and 10 day...
The foliar application of nutrients is prevailing in most orchards and it has noticeable favorable effects on vegetative traits, yield and fruit quality. The effect of foliar application of zinc (Zn) and boron (B) on qualitative traits of hazelnut fruits was explored in a factorial experiment based on a randomized complete block design with 12 trea...
A new group of colored shade net has been developed that can influence the quality and quantity of the light intercepted by the plants. To explore the effect of applying colored shade nets on physiological traits of marigold and violet plants, a split-plot experiment was carried out. The trial was done with two factors including colored shade net a...
Today, environmental pollution, especially heavy metal pollution, is known as a new and possibly more dangerous pollutant than other environmental ones. For this purpose, the uptake of four aquatic plants in different environments was chosen. In this experiment, four macrophytes, i.e., umbrella palm (Cyperus alternifolius), duckweed (Lemna minor),...
The use of animal sex hormones in plants does not have a long history, but the presence of these hormones in plants has been proven. The aim of the research was to investigate the effects of gibberellic acid and progesterone on growth and development of Zinnia elegans flower in a factorial experiment based on a completely randomized design with thr...
The main objective of the present study was to explore preferences and eumotion perceptions of people in Rasht and Ardabil (Iran) to some ornamental plants in order to help designing appropriate urban green landscapes. The study surveyed urban park users in the two cities in 2017 to identify and compare the most important factors
underpinning the v...
The effect of rooting hormones, substrate and bottom heat was studied on the rooting of the cuttings of Picea abies. The treatments included bottom heat at two levels, hormones at six levels and rooting substrate at three levels. The recorded traits included rooting percentage, the number of roots; root length and root dry weight. It was found that...
Caucasian whortleberry (Vaccinium arctostaphylos L.), locally named Qare-Qat, is a shrub native to humid Caucasus area including northwest of Iran. It is a medicinal plant which has been intensively utilized in Iranian folk medicine as an antihypertensive and antidiabetic agent for many years. In order to determine the pomo-logical and phytochemica...
The impact of various rates of benzyladenine (BA) and epibrassinolide (EPL) was explored on antioxidant capacity and pigment biosynthesis of marigold in a factorial experiment on the basis of a Randomized Complete Block Design with two factors including benzyladenine (BA) and epibrassinolide (EPL), both at four rates of 0, 1, 5 and 10 mg/L with thr...
This pot study was carried out as a factorial experiment. The foliar application of salicylic acid (SA) and jasmonic acid (JA) both, at three levels and salinity stress at four levels were applied. The results showed that salinity resulted in a significant loss of most morphological traits, protein, total chlorophyll, and catalase activity, whereas...
The application of plant hormones has been long considered in the production of the plants, but the use of a whole new set of plant growth regulators including brassinosteroids and human hormones including progesterone and estradiol has been an interesting field of study for plant researchers in recent decades. The present study aimed to explore th...
Cutting has mentioned one of Beaucarnea’s propagation methods in some scientific references, but it is hard-to-root plant. This experiment carried out to try rooting of shoot cutting of this species. For this purpose, Ponytail palm tip shoot cuttings were treated by 4 concentrations of Indole butyric acid (IBA) including: 0, 1000, 2000 and 4000 mg/...
Nowadays, Orchids are one of the most commercial products in flower markets. One of the propagation methods for Cymbidium is using old pseudobulbs that are thrown out after flowering period. This research carried out using standard Cymbidium back-bulbs based on randomized complete block design with 5 treatments in 3 replications. The trial traits w...
Cacti are thorny plants originated from America that grow in most parts of the world. It isused as an ornamental plant thanks to its unique fleshy and beautiful appearance. The fruitsof Opuntia are rich in antioxidants, which makes it possible for this species to tolerategrueling adverse environments. The biochemical properties of fruits and stems...
The effect of different concentrations of salicylic acid (SA) and epi-brassinolide and different substrates was examined on increasing the yield of Aloe maculata All. and improving its vegetative quality in a factorial study based on a Randomized Complete Block Design with three factors, three replicates and 27 treatments. The first factor (A) was...
Introduction. Grafting onto kiwifruit seedlings is a common method for propagation. Grafting success rate depends on both the rootstock and grafting type. Materials and methods. The present study examines the effect of three grafting types on two locally prevailing rootstocks of the kiwifruit 'Hayward' in a factorial experiment based on a randomize...
Aim of study: The effect of planting substrate and concentrations of indole-3-butyric acid (IBA) and naphthaleneacetic acid (NAA) hormones was studied on the rooting of mugo pine cuttings.
Area of study: The research was carried out in Rasht city, Guilan province, Iran.
Material and Methods: Both hormones (IBA and NAA) were applied at four concen...
Accumulation of sawdust and sugarcane bagasse can cause serious problems for the environment. In this study, we examined the growth and reproductive performance of Eisenia foetida in cow manure, cow manure + sugarcane bagasse (4:1, V/V) and cow manure + sawdust (4:1, V/V) waste and its effects on CO2 evolution. The results showed that the weight ga...
Application of safe organic compounds for the environment is an important approach to increase the longevity of cut flowers. Essences and herbal extracts are compounds having antimicrobial properties, thereby increasing the post-harvest life of cut flowers. Mechanical treatments such as splitting in the stem end also increase longevity of cut flowe...
The effect of concentration and application method of chlormequat (cycocel), a plant growth retardant, on plant height and some other traits in Brassica oleracea cultivars 'Kamome White' and 'Nagoya Red' was assessed. Plant growth retardants are commonly applied to limit stem elongation and produce a more compact plant. The experiment was done as a...
To evaluate the possibility cultivating Strelitzia Reginae in the regions having inappropriate quality of irrigation water, an factorial experiment (two factors) was conducted in different growth media containing soil and cow manure compost with or without inorganic fertilization under different salinity of irrigation water base on randomized compl...
Quality and quantity improvement of crops using organic matter and low-cost
method in the field is very important. Bio-fertilizer nitroxin and humic
acid can increase root and shoot biomass through improved intake of
nutrition and they can lead to quality and quantity improvement of product.
An experiment was carried out as a completely randomized...
An experiment was conducted with three types of essence. Chemical and organoleptical changes in tea quality were evaluated during one-year storage time. The trial was conducted as a Factorial experiment with two factors and three replications. The essences were distributed in four levels including: without essence, cardamom essence, bergamot essenc...
The magnetic fields influence the biological systems by several mechanisms. The magnetic field induces the translation and rotation movements of the electric charges. The effects of a stationary magnetic field on the germination and initial stages of growth of Lettuce seeds (Lactuca sativa var.longifolia) have been studied. The seeds were exposed t...
Crop production is limited by environmental stresses, their impact and severity. Amongst the environmental stresses, the adverse effects of salinity on crop production are more drastic. Identifying resistant plants to salinity is vital. The aim of this trial was to investigate the changes in the chemical composition of the essential oils of rosemar...
To evaluation of effect of NAA on vase life andpostharvest characters of cut Alstroemeria hybrida, a completely randomized design experiment with 3 level of NAA (0,10 and 20 mg L -1) and 3 replications was carried out. Analysis of variance showed that effectof NAA on vase life, chlorophyll b content and loss obrix was significant (p≤0.05).Results s...
Iron is a necessary element for plant ' s growth and since the formation of chlorophyll is not possible without the presence of iron, therefore plants deficiency or deactivation of iron show with chlorosis of their leaves. This research was carried out to determine suitable type of iron fertilizer and use method from it for Spathyphyllum ornamental...
To investigation on the effect of boric acid on vase life and postharvest qualitiy of cut carnation cv. 'Nelson', an experiment carried out based on complete randomized design with four levels of boric acid (0, 100, 200 and 300 mg l -1) and 3 replications. The results indicated that significant effect of boric acid on measured traits (p≤0.05). Mean...
wood reduces and this as will causes a performance reduction, fruit quality degradation and an intensified
alternate-bearing. From that time on, the rejuvenation program should be initiated. This study was
conducted from February 2011 to July 2013, in an old olive grove located in Tarom city, Zanjan province,
Iran. The experiment was performed in t...
The effects of different levels of naphthalene acetic acid were investigated on vase life and postharvest quality of cut Alestroemeria flowers in Islamic Azad University, Rasht Branch (Iran). Experiment carried out based on completely randomized design with naphthalene acetic acid (NAA) at 3 levels (0, 10 and 20 mg L -1) in 3 relplications. Analysi...
Rosemary (Rosmarinus officinalis L.) is a member of the Lamiaceae family, it is used for ornamental
and many medicinal purposes. Increasing of saline lands and the shortage of agricultural lands, identification
and improvement of salt tolerant plants particularly medical and ornamental is important. Purpose of this trial
is investigation of differe...
The factorial experiment (2×2×3) was done over five years to survey the best planting and density patterns of two
cultivars of soybean in a cleanly pruned tea plantation. The effects of these three factors were studied on soybean and tea
yield and yield ingredients. The first factor (i.e., soybean cultivars) was distributed in two levels including...
Biofertilizers have some microorganisms which convert elements to available nutrient for plant’s roots. This study is conducted to compare the effects of biofertilizers and chemical fertilizers on growth indices of Spathiphyllum illusion. This trial was carried out in a Randomized complete block design (RCBD) in 3 replications. Treatments were: con...
Chlormequat (cycocel or CCC), the plant growth retardant, was evaluated for its ability to control plant height in Brassica oleracea cultivar 'Kamome White' and 'Nagoya Red'. Different concentrations of CCC (0, 500, 1000 and 1500 mg/L) were sprayed and drenched on plants 40 days after transplanting. Data were recorded the 60 and 90 days after trans...
Effects of sowing date and plant population on seed yield of Cucurbita pepo L. were investigated. The experimental treatments included plant population at three levels (0.6, 1.3 & 2.2 plant m -2) as the main plot and sowing date at three levels (April 18, 29 & May 9) as the sub-plot. Seed yield per unit area, the number of seeds per fruit, fruits p...
Enzymatic browning arises by peroxidase in fruits. However, essential oils are recognized as natural antioxidant agents. So in this study, the effect of thyme, coriander and rosemary essential oils were evaluated on the reduction of peroxidase activity in apples (Malus domestica Mill. cv Golden delicious), (M. domestica Mill. cv Red delicious) and...
Based on the antioxidant property of essential oils, the effect of thyme, coriander and rosemary essential oils on reduction of peroxidase in celery (Apium graveolens var. dulce), spinach (Spinacia oleracea L.) and romaine lettuce (Lactuca sativa var.longifolia) were evaluated. For this reason, 50, 75, 100, 200 μl/100 ml and pure concentrations of...
Based on the antioxidant properties of essential oils, the effect of thyme, coriander, and rosemary was evaluated on the reduction of peroxidase in white cabbage “Brassica oleraceae var.capitata f. alba” and red cabbage “B. oleraceae var. capitata f. rubra”. To do this, pure, 50, 75, 100 and 200 μl/100 ml concentrations of essential oils were appli...
Water uptake and chlorophyll content are two important factors in postharvest quality of cut carnations (Dianthus caryophyllus L.). 1-MCP (1-methylcyclopropene), as a gaseous inhibitor of ethylene action, increased water uptake and chlorophyll content of cut carnation. The effects of 1-MCP depend on concentration and time duration. In this experime...
Plant leaves are major source of photosynthesis and obtain assimilates for growing parts. Effects of different levels of defoliation studied on maize's growth and yield. The study was conducted as completely randomized block design with 8 treatments in 4 replications. The treatments were: T1= control (without leaf removal), T2= removing of ear leaf...
Cryopreservation of germplasm at liquid nitrogen (-196°C) is a perfect method for the long-term conservation of plant genetic resources. A cryopreservation process using dehydration was performed for seeds of lily [Lilium Iedebourii (Baker) Bioss]. Seeds were subjected to a rapid freezing protocol in liquid nitrogen following dehydration and treatm...
Water relation and chlorophyll content are two important factors on the postharvest quality of cut flowers. 1-MCP (1-methylcyclopropene), as a gaseous inhibitor of ethylene action, significantly delayed the wilting of cut carnation (Dianthus caryophyllus L.). The effects of 1-MCP depends on concentration, time duration and temperature. In this stud...
Prunus genus is economically very important and many species are cultivated worldwide for their fruits. There are about 75 native varieties of plum and prune in Iran. Guilan province is one of the important areas where fruits of some cultivars mature early in spring. The purpose of this study was to compare the morphological and pomological charact...
Plant density can affect development and yield of bell pepper (Capsicum annuum L.). Information on the optimum plant density of different types of peppers in the Caspian Sea region is limited. The experiment was arranged in a randomized complete block with three plant densities (30,000, 42,000, and 78,000 plants·ha−1) with an in-row spacing of 0.45...
To improve quality and yield of Iranian tea, this experiment was projected and effects of nitrogen (N), potassium (K), magnesium (Mg) and micronutrients (Zn and Cu) fertilizers was studied on yield and quality of tea. The trial conducted by using factorial split-plot design, with three factors in three replications in RCBD. Nitrogen and potassium f...
The aim of this study is to evaluate effect of cane molasses on total nitrogen and C/N ratio of municipal wastes compost and cattle manure. Treatments included different amounts of molasses with municipal decomposable wastes and cattle manure that were added to organic wastes in 2 and 4 weeks after composting start (first and second stages). Each o...
The extraction of succulent leaves of Aloe vera L., have broad application in medicinal and cosmetic industry. In this study, shoot tips of Aloe vera L. was cultured. This experiment have 4 separated stages. In first stage, 0.5 and 1 mg l-1 NAA and 0.5, Vand 2 mg l-1 BA conducted in factorial experiment based on complete randomized block design wit...
Iranian tea industry is facing problems in the market. Low quality of Iranian black tea and change in sense of consumers taste is one of the reasons. Various teas are produced to attract consumer opinion. Using permissible additives is not usual in Iranian tea industry (before packaging). One of the natural additives of black tea is Qare-Qat (Vacci...
Iranian Vaccinium or Qare-Qat (Vaccinium arctostaphylos L.) belongs to Ericaceae and produces abundant seeded berries. Seed morphology and micrographs of seed surface and shape prepared using Scanning Electron Microscope (SEM) were studied in this experiment. To evaluate the Qare-Qat seed dormancy and to assess the best conditions for seed germinat...
Seed morphology and micrographs of seed surface and shape of Vaccinium arctostaphylos L. prepared using Scanning Electron Microscope (SEM) studied in this experiment. To evaluation of Qare-Qat seed dormancy and assessment of the best conditions for seed germination, the experiment carried out using factorial design with three factors in three repli...
Intercropping of agricultural crops is one of the considerable approaches to increase agricultural efficiency. To optimize use of Guilan (Northern Province of Iran) rice lands in time unit, sequential cropping of rice and soybean was assessed. In this experiment, rice and soybean were planted as a main crop and second crop, respectively. Soybean se...
Amelioration of acid soils with liming materials is a common practice. Some industrial byproducts are also being used as liming agent. The most important byproduct in amending acid soils is steelmaking basic slag. In this research, the possibility of using converter slag, as a soil amendment was investigated in three acid soils. Slag compound conta...
Qare-Qat or Iranian Vaccinium (V.arctostaphylos L.) is a shrub that grows in the north of Iran. The fruits of Qare-Qat were collected from natural habitats and examined for chemical composition such as minerals. The results showed that the ripe fruit of V.arctostaphylos L. had 30.6% sugars, 15.5% protein, 1.5% total fat and 2% soluble solids. Dry m...
