List of Articles Growth characteristic

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - The effect of potassium on the yield and concentrations of microelements in cowpea (Vigna unguiculata L. Walp.) under drought stress
  seyed morteza zahedi Farzad Rasoli Gholamreza Gohari
  In order to study the effect of drought stress and application of potassium on seed yield, some biochemical characteristics, and the content of micronutrients such as copper (Cu), zinc (Zn) and manganese (Mn) in cowpea, a factorial experiment was carried out in randomiz More

  In order to study the effect of drought stress and application of potassium on seed yield, some biochemical characteristics, and the content of micronutrients such as copper (Cu), zinc (Zn) and manganese (Mn) in cowpea, a factorial experiment was carried out in randomized complete block design with three replications in the greenhouse of the Faculty of Agriculture, University of Maragheh, Iran in 2016. Treatments were water stress at two levels (normal or 100% and 50% field capacity) as the first factor and potassium at five levels (0, 30, 60, 90, and 120 mg/kg) as the second factor. Results showed that drought stress reduced the growth parameters and the concentration of the elements in plants while application of different levels of potassium increased shoot dry weight, yield, and carbohydrate by adjusting the effects of drought stress. Also, application of 120 mg potassium in stress conditions caused an increase in the concentration of Cu, Zn and, Mn. Findings seem to suggest that potassium improves growth characteristics in cowpea by decreasing the undesirable consequences of drought stress. Therefore, application of potassium sulfate is recommended as a strategy to mitigate the effects of draught stress in cultivation of cowpea.  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - The effect of different media cultures on some growth characteristics of pot marigold (Calendula officinalis L.) plants under drought stress
  Mahsa Bahrampour Maryam Dehestani-Ardakani Mostafa Shirmardi Jalal Gholamnezhad
  Drought is one of important environmental stresses that cause decreasing of production and yield in arid and semi-arid areas. Aim of this study was using of some amendment compounds in soil to increase marigold plant (Calendula officinalis L.) resistance to drought stre More

  Drought is one of important environmental stresses that cause decreasing of production and yield in arid and semi-arid areas. Aim of this study was using of some amendment compounds in soil to increase marigold plant (Calendula officinalis L.) resistance to drought stress. Experiments were performed in factorial according a completely randomized design with three replications. Treatment were consisted of six amendment compounds (control (only soil), 1 and 2 g/kg nano- potassium fertilizer, 30% of vase volume cocopeat, 30% of vase volume palm peat and 30% of vase volume madder plant residues) in three levels of drought stress (40, 60 and 80% of field capacity). According to the results by increasing the drought level, fresh and dry weight of flower and root significantly decreased. While peroxidase enzyme activity significantly increased. The highest fresh and dry weight of flower and root was obtained in plants were treated by madder plant residues. The lowest fresh and dry weight of flower and root in all drought levels obtained in plants were treated by palm peat. Plants were treated by palm peat in all three levels of drought did not show reproductive phase and flower. Fresh weight of flower had significant correlation by dry weight of flower, fresh and dry weight of root and phosphorus uptake. Generally, results showed that madder plant residues in compare to other treatments increased marigold resistance to drought stress and could be introduce as a suitable organic compound of media culture. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Investigation of morpho-physiological responses to salinity stress in three promising hybrid genotypes of Iris (Iris germanica L.) inoculated with mycorrhizal fungi
  Zahra Ziaei Maryam Dehestani-Ardakani Mostafa Shirmardi Mohammad Hosein Azimi
  10.30495/iper.2021.679539
  Iris germanica L. is one of the most majestic and popular perennials used in landscape. The aim of this study was comparison of salinity tolerance in three new hybrids genotypes of Iris germanica L. inoculated with mycorrhizal fungi. Treatments consisted of four levels More

  Iris germanica L. is one of the most majestic and popular perennials used in landscape. The aim of this study was comparison of salinity tolerance in three new hybrids genotypes of Iris germanica L. inoculated with mycorrhizal fungi. Treatments consisted of four levels of water salinity (1, 4, 8, and 12 ds/m), three levels of mycorrhizal fungi (0, 15, and 25 g/kg) and three promising genotypes of iris (OPRC-122, OPRC-125, and OPRC-S54). Experiment was conducted based on a factorial and completely randomized design (CRD) with three replications in 2018-2019 in Ardakan University. Some morphological and physiological traits were evaluated. Application of 25 g/kg mycorrhizal fungi at 12 dS/m salinity level increased root length in OPRC122 and OPRCS54 genotypes by 83.77% and 65.38%, respectively compared with control. In OPRCS54 genotype under 8 dS/m salinity, using 25 g/kg mycorrhizal fungi increased the ratio of shoot to root fresh weights by 52.83%. Application of 15 and 25 g/kg mycorrhizal fungi at 12 dS/m salinity in OPRC122 genotype increased P uptake by 341% and 480%, respectively. The use of 15 g/kg mycorrhizal fungi in OPRC125 genotype reduced Na uptake by 32% at 12 dS/m salinity. In OPRCS54 genotype under the same level of salinity, application of 15 and 25 g/kg mycorrhiza fungi decreased sodium uptake by 63.51% and 55.24%, respectively. In general, using mycorrhizal fungi in all three genotypes at salinity level of 8 dS/m reduced the effect of salinity and increased plant yield. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  4 - Trichoderma harzianum and Fe Spray Improve Growth Properties of Spathiphyllum sp.
  Zahra Jalali Mahmood Shoor Sayed Hosein Nemati Hamid Rouhany
  Effects of Fe and Trichoderma harzianum Bi strain on plant growth and development of Spathiphyllum were investigated. Experiments were carried out in an glasshouse and in pots filled with soil, perlite and coco peat (1:1:1) were used as the growing medium. Plant roots ( More

  Effects of Fe and Trichoderma harzianum Bi strain on plant growth and development of Spathiphyllum were investigated. Experiments were carried out in an glasshouse and in pots filled with soil, perlite and coco peat (1:1:1) were used as the growing medium. Plant roots (seedlings with three leaves) were inoculated with Trichoderma (0 and 8% w/w) as media mixture. Fe spray (0, 0.75, 1.5, 3 g/L), was applied 3 times on a month interval after Trichoderma inoculation. Factorial experiment was conducted in a completely randomized design with 3 replications. After six months, the plants were sampled for growth comparisons. Based on results Trichoderma improved morphological characteristics (P≤0.01). There were differences between the untreated control and the treatments for all of the growth parameters with the exception of spathe area and number of flowers. Fe spray and intraction between Trichoderma and Fe significantly increased all morphological growth parameters with the exception of spathe area, leaf area and number of flowers. By applying Terichoderma sucker number (400%), leaf number (586%), sucker fresh weight (386 %) and sucker dry weight (583%) significantly increased compared with control. The data obtained from the experiment showed the potential of Tichoderma and Fe spray to enhance growth and development of Spathiphyllum sp. in greenhouse conditions. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  5 - Ecological and Phenological Study on Ferulago angulata in the Hezar Mountains and Bondar Henza, Kerman, Iran
  Vahid Ebrahimian, Reza Bagheri Mohsen Mohseni Ahmad Poormirzaei
  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  6 - Effect of seed priming on improvement of safflower (Carthamus tinctorius L.) yield and its components under water stress
  samaneh ghorbi chalaki امیررضا صادقی B. Pasban حمید محمدی
  In order to study the effects of seed priming and water stress on safflower (Carthamus tinctorius L.) yield and its components, an experiment was conducted in 2014 at the Research Farm of the Faculty of Agriculture, Shahid Madani University of Azarbaijan, Iran. Experime More

  In order to study the effects of seed priming and water stress on safflower (Carthamus tinctorius L.) yield and its components, an experiment was conducted in 2014 at the Research Farm of the Faculty of Agriculture, Shahid Madani University of Azarbaijan, Iran. Experiment was as a factorial based on a randomized complete block design with three replications. Seed priming was considered at 4 levels (hydro-priming, auxin solution, nitroxin solution and without priming) and water stress at 3 levels (no-water stress, stresses at the shoot growth stage and seed filling stage). Results showed that plant growth rate, plant height, number of branches, head diameter, head number, 1000-seed weight, yield and the percentage of seed kernel weight were significantly affected by seed priming and water stress. Yield indicated positive correlation with measured growth characteristics, but the highest observed with the percentage of seed-kernel weight. Maximum yield obtained from auxin and nitroxin seed priming by 1852.8 and 1818 kg.ha-1, respectively. Totally, seed priming caused to improve in growth characteristics, but auxin and nitroxin effects were better than hydro-priming. Also, no-water stress had the highest yield by 1846.8 kg.ha-1 in comparison with water stresses. Generally, results showed that priming in normal irrigation conditions caused to maximum yield. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  7 - The Evaluation of Three Commercial Pistachio Cultivars on UCB1-hybride Rootstock under Field Conditions
  M. Ahmadi Kouhbanani A. Taj Abadi Pour D. Abadikhah
  10.22034/jon.2016.527097
  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  8 - Effects of Vermicompost and Manures on Growth Characteristics and Yield Components of Purslane (Portuleca oleracea L. var Behbahani)
  NILOFAR RAHBAR HOSSEIN ALI ASADI-GHARNEH
  Manuscript profile