List of Articles کلروفیل b

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  1 - Study some of Garden Cress (Lepidium sativum L.) Physiological Traits at Levels of Irrigation and Ascorbic Acid
  Zohre Akbari Mansour Fazeli Rostampour Leyla Zeya ebrahimi Mohamad Reza Naroeirad
  Drought seriously reduces the quality and quantity of agronomic and horticultural plants. In such condition, using factors to reduce these effects on plants is indispensible. To evaluate the effect of water stress and different levels of ascorbic acid on the leaf relati More

  Drought seriously reduces the quality and quantity of agronomic and horticultural plants. In such condition, using factors to reduce these effects on plants is indispensible. To evaluate the effect of water stress and different levels of ascorbic acid on the leaf relative water content, pigments, canopy temprature and dry matter of cress (Lepidium sativum L.) a split plot experiment based on randomized complete block design with three replications at the Agricultural Research Station of Zahak was conducted in 2014 where three irrigation levels (at 100, 80 and 60 percent of field capacity) assigned to the main plots and three levels of ascorbic acid (0, 5 and 10 micromolar) to the  sub-plots. The results showed that the effect of irrigation regimes, ascorbic acid and their interaction was significant on the traits under evaluation. Irrigation based on 60% of field capacity as compared with that of 100% F.C. reduced relative water content, chlorophyll a and b, carotenoids and dry matter weight by 20.89, 0.06, 0,034, 0.04 and 57.8 percent respectively and a 20% increase in canopy temperature, while applying of 10 micromolar ascorbic acid relative to control increased 12.22, 0.075, 0.15, 0.05 and 57.8 percent on traits mentioned above respectively and a 3% decrease in canopy temperature. Regression model revealed that application of ascorbic acid at irrigation in 100% field capacity was not effective on these traits, except on chlorophyll b and carotenoids contents, but in irrigation at 60 and 80% percent field capacities, increased amount of relative water content, chlorophyll a, chlorophyll b, carotenoids and dry matter. Although ascorbic acid could not reduce the negative impacts of 20% decrease in irrigation but application of 10 micromolar ascorbic acid in 60% and 80% irrigation at field capacities increased dry matter significantly, as compared to that of ascorbic acid under these conditions. Manuscript profile
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  2 - Investigation of the effect of silica spraying and salinity stress on some physiological traits of Camelina sativa oil plant
  Ebrahim Fani Shokoofeh Hajihashemi
  10.30495/iper.2022.1954207.1780
  In order to investigate the effects of salinity stress and foliar application of silica on Camelina sativa oil plant, a factorial study was carried out in the growth chamber of the laboratory of the Department of Biology, Behbahan Khatam Alanbia University of Technology More

  In order to investigate the effects of salinity stress and foliar application of silica on Camelina sativa oil plant, a factorial study was carried out in the growth chamber of the laboratory of the Department of Biology, Behbahan Khatam Alanbia University of Technology, in 3 replications based on a completely randomized block design. Treatments included salinity stress at two levels (0 and 100 mM NaCl) and potassium silicate solution at two levels (0 and 5 mM). The physiological and biochemical traits of Camelina sativa under salinity stress were evaluated along with the role of osmotic substances such as soluble sugar and soluble protein in reducing the harmful effects of salinity stress. Results showed that salinity stress significantly reduced the amount of chlorophyll a, b, and total in Camelina sativa, while silica treatment significantly reduced the harmful effects of salinity. Soluble sugar content of leaves in response to salinity stress was 46% lower than in the control plant. Salinity stress combined with silica increased the amount of soluble sugar 27% more than the control plant. Results also showed that in the treatment with silica under 100 mM salinity level, the amount of leaf proteins was almost 10% less than the control plants. The results of measuring the plant’s antioxidant capacity of FRAP showed that in response to silica treatment without salinity, no significant difference was observed in the amount of antioxidant capacity of FRAP, while in the combined treatment of salinity stress + silica it decreased by 9% compared with the control plants. The results of this study supports the beneficial role of silica as an environmentally friendly compound to increase plant resistance to salinity stress. Manuscript profile
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  3 - تاثیر محلول پاشی اسید سالیسیلیک بر میزان اسمولیت‌ها و رنگدانه‌های فتوسنتزی گیاه بادمجان (Solanum melongena L.) تحت تنش سرما
  محسن فرزانه مژگان قنبری علیرضا افتخاریان جهرمی شورانگیز جوانمردی
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  4 - The effect of salicylic acid and ascorbic acid foliar application on forage yield, RWC and leaf chlorophyll of corn under drought stress
  navvab haji hassani asl farhad farah vash mohsen roshdi Bahram mir shekari mehdi gaffari
  To study the effect of salicylic acid and ascorbic acid foliar application on yield and specification of corn under drought stress, an experiment was performed in Khoy in 2013-14 as split plot with basis of randomized complete block design in four replications. Main fac More

  To study the effect of salicylic acid and ascorbic acid foliar application on yield and specification of corn under drought stress, an experiment was performed in Khoy in 2013-14 as split plot with basis of randomized complete block design in four replications. Main factor: drought stress doing through irrigation after 75±5 and 150±5 mm evaporation on Pan. Sub factor was including of foliar application of ascorbic acid and salicylic acid in 100, 200 and 300 mg/lit and control treatment (non- foliar application). Effect of year was significant only on RWC. Drought stress had significantly effect on fresh forage yield, chlorophyll a, b and chlorophyll a+b. Foliar application had significantly effect on all characters. Interactions effect of year and foliar application were significant on fresh forage yield and chlorophyll a. 100 mg/lit salicylic acid foliar application in 2013 year treatment with average of 74.46 ton/ha and non- foliar application in 2014 year treatment with average of 59.47 ton/ha had maximum and minimum of fresh forage yield. Maximum and minimum of chlorophyll a seen in 300 mg/lit ascorbic acid foliar application in 2014 year and non-foliar application in 2013 year. Interaction of drought stress and foliar application had significantly effect on fresh forage yield, only. 100 mg/lit salicylic acid foliar application in normal irrigation treatment (80.82 ton/ha) and non- foliar application in drought irrigaton treatment (52.74 ton/ha) had maximum and minimum of fresh forage yield, respectivly. Manuscript profile
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  5 - Effect of salt stress on antioxidant enzymes, photosynthetic pigments and proline in commercial varieties of maize (Zea mays L.)
  Davar Molazem
  10.22034/aej.2015.514347
  This study was conducted to determinethe effect of different levels of salinity on some physiological traits in eight cultivars of corn in factorial experiment based on  randomized complete block design in three replication and  several traits of sodium ion (N More

  This study was conducted to determinethe effect of different levels of salinity on some physiological traits in eight cultivars of corn in factorial experiment based on  randomized complete block design in three replication and  several traits of sodium ion (Na+)concentration in leaf, chlorophyll a, and b, proline and antioxidant enzymes were measured. K3653/2 cultivar was blighted in salinity concentration of 50 mM which showed its sensitivity to salinity and was removed from the study. There was a significant difference between different salinity on chlorophyll a and b, the content of sodium in leaf, ascorbate peroxidase and superoxide dismutase. The highest amount of chlorophyll a was obtained in K3615/1 in normal condition. The amount of superoxide dismutase increased with increasing salinity and the highest amount of this enzyme was observed in salinity concentration of 100 mM. There wasn't any significant difference among cultivars in terms of superoxide dismutase in salinity concentration of 100 mM. The increase of salinity concentration level increased the amount of proline in most cultivars. The highest level of \proline was obtained from K3545/6, Zaqatala, SC302 and SC704 cultivars in salinity concentration of 100 mM. The maximum amount of ascorbate peroxidase enzyme was obtained from SC302 and Waxy cultivars in normal conditions. There wasn't any significant difference among cultivars in terms of Na+ content in normal condition. Two cultivars of  Zaqatala and SC704 showed more resistance to salinity, Therefore they can be used in breeding programs. Manuscript profile