List of Articles Lawn

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  1 - The Effect of Humic Acid Concentration on Alkalinity and Soil Elements Release, Germination and Growth Index in Lawn
  jasem toamehzadeh Ali Gholami Mehdi Nourzade hadad akbar hassani kamran mohsenifar
  10.22034/jest.2019.44326.4666
  Background and Objectives: Development of sustainable land scape requires the identification of appropriate strategies. In this research, humic acid is used as an alkalinity reducer and increasing nutrient availability in the soil and improving lawn growth. Materials an More

  Background and Objectives: Development of sustainable land scape requires the identification of appropriate strategies. In this research, humic acid is used as an alkalinity reducer and increasing nutrient availability in the soil and improving lawn growth. Materials and Methods:  The study run as completely randomized block design (CRBD) with 30 plot for cold region and tropical lawn with five concentrations of humic acid (0, 3, 6, 9 and 15mg /liter) with three replicates for each concentration at a ten day intervals. Then, physical and chemical properties (nutrients, salinity and alkalinity of soil in these plots were investigated. Findings: Results showed that with increased application of humic acid, the release of nutrients such as N,P,K, Ca, Mn, S, Fe, Zn, Cu, Mg, B and Mo increase in soil. Spearman correlation coefficient between two variables of acid concentration and nutrients content was 0.949. Given that this value is positive, it can therefore be said that these two variables have a direct relationship with each other. The results of studying lawn seed germination percentage in petri dish with five concentrations indicated that germination percentage decreased with increasing humic acid concentration. In this research, lawn root and length and weight of stem increased with increasing humic acid concentration. Discussion and Conclusion: Application of humic acid reduces the alkalinity and release nutrients in the soil and improves the condition of lawn in terms of nutrient uptake, growth rate, vegetation and resistance to environmental conditions. Manuscript profile
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  2 - Investigating the type of seed explant and carbon source on optimization of in vitro production of Festuca araundinacea callus
  Matin Dolati Mostafa Khoshhal Sarmast Seyyed Javad Mousavizadeh
  10.30495/iper.2022.688803
  Tall fescue is an open pollinated cool season turf grass. Micropropagation and genetic transformation of monocot species have always experienced low genetic transformation efficiency. Therefore, evaluation of explant types and carbon source in media, likely through call More

  Tall fescue is an open pollinated cool season turf grass. Micropropagation and genetic transformation of monocot species have always experienced low genetic transformation efficiency. Therefore, evaluation of explant types and carbon source in media, likely through callus optimization would lead to the genetic transformation improvement which is the goal of this experiment. After surface sterilization of tall fescue seeds, different seed explants with or without embryo, have used to evaluate callus induction ability. Normal sugar, maltose and equal amount of sugar and maltose were also used as a different source of carbon in a completely randomized design with three replications. Finally, embryogenic calli, induced to produce shoots in MS media supplemented with 10 mg/L 2,4-D and 0.05 mg/L BA. The presence of embryo on explant is a necessity for callus induction. Explant without embryos which were cut differently failed to produce callus. The assessment of three carbon source during the course of multiplication under in vitro culture indicated that sucrose and maltose significantly improved total chlorophyll and carotenoid content in regenerated shoots while MS media with equal amount of both aforesaid carbon sources were not effective. The results gained in the present experiment indicated that embryo-contained cross section of seeds and using maltose was the best explant and the best carbon source for callus induction and shoot proliferation respectively. Manuscript profile
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  3 - ارزیابی کیفی چمن با استفاده از روش نمره دهی بر اساس تصویر و روش ارزیابی ملی چمن (NTEP)
  فاطمه کاظمی محمودرضا گلزاریان فاطمه نعمت الهی
  روش‎های کنونی ارزیابی چمن اغلب بر پایه روش­های مبتنی بر ارزیابی انسانی هستند. با این حال، حذف خطاهای ذهنی (شخصی) از چنین ارزیابی اغلب غیرممکن است. این تحقیق صحت روش‎های مبتنی بر ارزیابی انسان را در مقایسه با روش‎های مبتنی بر پردازش تصویر بررسی می‎کند More

  روش‎های کنونی ارزیابی چمن اغلب بر پایه روش­های مبتنی بر ارزیابی انسانی هستند. با این حال، حذف خطاهای ذهنی (شخصی) از چنین ارزیابی اغلب غیرممکن است. این تحقیق صحت روش‎های مبتنی بر ارزیابی انسان را در مقایسه با روش‎های مبتنی بر پردازش تصویر بررسی می‎کند. چهار کرت چمن با استفاده از دو روش ذکر شده مورد بررسی قرار گرفت. در روش مبتنی بر ارزیابی انسان، 20 ارزیاب (10 زن و 10 مرد) و در روش مبتنی بر تصویر، یک دوربین دیجیتال با منبع نور مصنوعی و کنترل شده استفاده شد. این آزمایش برای اولین بار دو فاکتورکیفی بافت چمن و تحمل به رشد علف‎های هرز را با استفاده از یک تکنیک مبتنی بر پردازش تصویر و روش رایج مبتنی بر ارزیابی انسانی بررسی کرد. علاوه بر این، پوشش‎دهی کل چمن، و رنگ و پوشش زنده چمن‎ها در دو روش اندازه‎گیری مقایسه شدند. نتایج روش ارزیابی مبتنی بر انسان نشان‎دهنده دامنه وسیع‎تر و انحرافات استاندارد بالاتر نسبت به روش پردازش تصویر بود که به نظر می‎رسد به دلیل تفاوت­های بین ارزیابی‎کنندگان انسانی و خطاهای ناشی از ذهن انسان است. نتایج همچنین بر دقت و سهولت استفاده از روش مبتنی بر پردازش تصویر تأکید کرد. این نتیجه می‎تواند کاربردهایی برای توسعه یک سیستم مکانیزه برای ارزیابی کیفیت چمن در سراسر جهان داشته باشد. Manuscript profile
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  4 - Evaluation the Effects of Superabsorbent on Qualitative Characteristics of Lawn
  F. Sheikhmoradi I. Argi V. Abdosi A. Esmaeili
  Water sources optimizing required a suitable irrigation program. Different material can use to increase water use efficiency. Superabsorbent is one of the materials where used in around the world. These materials put in the soil and absorb water so that reserved water i More

  Water sources optimizing required a suitable irrigation program. Different material can use to increase water use efficiency. Superabsorbent is one of the materials where used in around the world. These materials put in the soil and absorb water so that reserved water is usable by plant in the time of drought stress and they can reduce stress and lead to prevent yield loss. Therefore, the experiment was conducted to evaluate effects of different superabsorbent and irrigation cycles on lawn. A split plot experiment based on randomized block design with three replications was used. Irrigation cycles and superabsorbent amounts used as main-plot and sub-plots respectively. Four irrigation periods (1, 2, 4 and 6 days) and four superabsorbent amounts (0, 20, 25 and 30 g/m2) were used as experimental treatments. One-day irrigation interval and zero superabsorbent amounts were used as control. Lawn water requirement was calculate by evaporation from a pan class. Results showed that superabsorbent amount had significant effect on shoot height, total chlorophyll and plant density. Results showed that lawn performance was higher in 30 g/m2 of superabsorbent amount at two-day irrigation cycle. Manuscript profile
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  5 - Effect of Fertilizer and Soil Compactness Interaction on N, P and K in the Culture of Lawn
  S. Javahery H. Zarei S. A. R. Movahedi Naeini G. Roshani M. Eftekhari
  Under favorable soil conditions such as existence of easily destructible organic compounds, balanced heat and moisture, adequate ventilation and abundant nutrients, organic materials are mineralized. Once mineralizing occurs, mineral elements like P, S, Ca, Mg, K and ot More

  Under favorable soil conditions such as existence of easily destructible organic compounds, balanced heat and moisture, adequate ventilation and abundant nutrients, organic materials are mineralized. Once mineralizing occurs, mineral elements like P, S, Ca, Mg, K and other cations are released. A related study was conducted to determine the effect of seven organic fertilizers (Leaf Mold (LM), Rice Husk (RH), manure, Spent Mushroom Compost (SMC), mixture of LM, RH and SMC (M1), mixture of LM, RH and manure (M2) with the ratio of 1: 1: 1 and control) at three levels of soil compactness (roller weight of 36, 56 and 76 kg) on N, P, K content of soil and aril parts of sport lawn. Treatments were applied as strip plot design in three replications, in research farm of Gorgan University of Agricultural Sciences and Natural Resources during 2008-2009. According to the results of this study, in all three compactness levels, treatments containing manure and SMC showed more N and K in contrast to control treatment. The most content of soil P in each compactness level was observed in plots fertilized with manure. The manure and control treatments showed the most and the least amount of plant nitrogen in all compactness treatments respectively. The manure and SMC treatments and also treatments containing these organic matters increased plant phosphorus content in compare with RH, LM and control treatments. Also in three compactness, manure and SMC treatments showed more plant potassium in contrast to control. Manuscript profile