List of Articles lolium

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  1 - Effects of foliar application of salicylic acid on growth characteristics of lolium grass under salt stress condition
  Masoud Moghadam Yar Mohammad Kazem Souri Elham Motalebi Mahmoud Reza Rouzban
  10.22034/jest.2019.13707
  Background and Objective: in agriculture, increase of water and soil salinity represents a main challenge. Salinity affects plant growth and productivity in various ways. On the other hand, compounds such as salicylic acid through signaling systems, can result in some r More

  Background and Objective: in agriculture, increase of water and soil salinity represents a main challenge. Salinity affects plant growth and productivity in various ways. On the other hand, compounds such as salicylic acid through signaling systems, can result in some resistance in plants. In this study, the effects of foliar application of salicylic acid with different concentrations on lolium growth and development were investigated under various salinity levels. Method: This study was done as a factorial based on completely randomized design. Salicylic acid was sprayed on plants in 4 concentrations of 0, 100, 200 and 300 mg/L, and soil salinity was applied at 3 levels of 3-4, 6-7 and 9-10 dS/m using NaCl. Different plant growth and development factors were evaluated at two periods of middle and end of experiment. Findings: The results of present experiment showed that salinity as well as spray of salicylic acid was effective on many morphological and physiological traits of lolium plants. At the first harvest, the highest shoot fresh and dry weight were observed in treatments with high salinity, while chlorophyll index and plant height decreased by increasing salinity levels. In the second harvest, plant height and other growth-related traits were distinctly decreased by increasing salinity levels. Spray of salicylic acid resulted in higher root fresh and dry weight as compared to control plants, while it showed no effects on shoot fresh and dry weight. Discussion and Conclusion: It was concluded that application of salicylic acid could reduce salinity effects on lolium plants. Manuscript profile
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  2 - Apple orchard weeds management by grasses perennial cover crops
  بتول صمدانی hekmat Esfandiyari
  Planting permanent cover crops is an eco-friendly approach for reducing weed problems without use of chemical. In order to study effect of perennial cover crop, in comparison with annual cover crops, on weed control and weed community structure this research was conduct More

  Planting permanent cover crops is an eco-friendly approach for reducing weed problems without use of chemical. In order to study effect of perennial cover crop, in comparison with annual cover crops, on weed control and weed community structure this research was conducted in an apple orchard interrows for 2 yr in Gazvin province. Treatments were: Festuca ovina, Festuca arundinacea, Lolium perene, Bromus inermis with replant and without replant, Secale cereal and control (without weed control). In the first spring, perennial cover crops and S. cereal reduced weeds dry weight 70 and 100%, respectively, and in the second spring perennial cover crops in average and S. cereal reduced weeds dry weight 58 and 94%, respectively. In the second year Bromus inermis and Festuca ovina reduced weeds dry weight 10 and 30% more than other perennial cover crops. Replant needed for establishment of perennial cover crops. Cover crops treatments had effect on weed community structure, as weed composition in the end of second year in Bromus inermis and Festuca arundinacea was different from control. However, weed composition in Lolium perene and F. ovina was same as control. Perennial cover crops can be an effective weed management in organic orchards. Manuscript profile
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  3 - بررسی اثر تیمارها ی شیمیایی ( جیبرلیک، اسکوربیک و سالیسیلیک اسید) بر ویژگی های جوانه زنی بذر گونه های Lolium rigidum Gaudin. ،Lolium prenne L.
  رقیه حبیب زاده جلال محمودی بهرام ناصری
  10.30495/jsr.2023.1981390.1250
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  4 - بررسی اثر تیمارها ی شیمیایی ( جیبرلیک، اسکوربیک و سالیسیلیک اسید) بر ویژگی های جوانه زنی بذر گونه های Lolium rigidum Gaudin. ،Lolium prenne L.
  رقیه حبیب زاده جلال محمودی بهرام ناصری
  10.30495/jsr.2023.1981390.1250
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  5 - بررسی تنوع ژنتیکی و آنالیز کاریوتیپ در 13 اکسشن از Lolium multiflorum
  سوسن عباس زاده علی اشرف جعفری هوشمند صفری هومن شیروانی
   تنوع ژنتیکی 13 اکسشن از گونه Lolium multiflorum بر اساس خصوصیات کاریوتیپی مورد بررسی قرار گرفت. برای هر اکسشن، کاریوتیپ 5 سلول متافازی تهیه شد و صفات طول کل کروموزوم (TL)، طول بازوی بلند (LA)، طول بازوی کوتاه (SA)، شاخص سانترومری (CI) و نسبت بازوها (َAR) با استفاد More

   تنوع ژنتیکی 13 اکسشن از گونه Lolium multiflorum بر اساس خصوصیات کاریوتیپی مورد بررسی قرار گرفت. برای هر اکسشن، کاریوتیپ 5 سلول متافازی تهیه شد و صفات طول کل کروموزوم (TL)، طول بازوی بلند (LA)، طول بازوی کوتاه (SA)، شاخص سانترومری (CI) و نسبت بازوها (َAR) با استفاده از نرم افزار micromeasure  محاسبه گردید. شش اکسشن دیپلوئید و هفت اکسشن تتراپلوئید بودند و تعداد کروموزم پایه برای کلیه اکسشن­ها x=7 بود، همچنین تعداد ماهواره از سه تا شش، در بین اکسشن­های دیپلوئید و تتراپلوئید متغیر بود. نتایج تجزیه واریانس (ANOVA) بر پایه طرح کاملا تصادفی (CRD) نشان داد که در بین اکسشن­های مورد بررسی برای کلیه صفات کاریوتیپی اختلاف معنی­داری در سطح یک درصد وجود دارد. دیاگرام حاصل از پراکنش اکسشن­ها براساس شاخص­های نامتقارن بودن درون کروموزومی (A1) و نامتقارن بودن بین کروموزومی (A2) و نتایج تجزیه کلاستر اکسشن­ها به روش Ward نشان داد که اکسشن­های مورد بررسی در سه گروه قرار گرفتند. نتایج حاصل از تجزیه به مؤلفه­های اصلی (PCA) نشان داد که دو مؤلفه اول به ترتیب 647/48 و 726/35 درصد از کل واریانس موجود را بر اساس صفات کاریوتیپی در بین اکسشن­ها بیان نمودند. در مجموع 373/84 درصد از تنوع موجود بین اکسشن­های مورد مطالعه با دو مؤلفه اول بیان شد. دیاگرام پراکنش اکسشن­ها بر اساس دو مولفه اول، اکسشن­ها را در چهار گروه قرار داد. Manuscript profile
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  6 - The effect of water salinity on some growth parameters of four grasses in Sistan region
  Ramin Babadaei Samani mahdie salari
  Today, grass is widely used in landscape. So, it is important to understand the various environmental stresses such as salinity. Thus an investigation was performed as factorial based on completely randomized design with three replications. The studied factors included More

  Today, grass is widely used in landscape. So, it is important to understand the various environmental stresses such as salinity. Thus an investigation was performed as factorial based on completely randomized design with three replications. The studied factors included four type of lawn, namely: Poa pratensis, Cynodon dactylon, Lolium perenne and Festuca rubra with different levels of sodium chloride (0, 0.5, 1, 1.5 and 2 percent equal to 0, 6.25, 12.5, 18.75 and 25 dS/m). The results showed that all plant growth indices (shoot fresh and dry weight. stem height, tiller number and root length and weight) were decreased by increasing salt concentration. In this case, plants had the lowest growth at 2% salinity. Salinity had minimal effect up to 0.5 % and in most cases, there was no significant difference compared with the control plants. But from 1% of salinity and above all indices were affected by salinity stress and were significantly decreased compared with 0%. In most cases, Poa and Lolium growth parameters were not significant and almost had the same growth. In all cases Cynodon had the highest growth parameters. In addition, it significantly differed from three other genera. Furthermore, the findings of this study showed that Cynodon had greater growth parameters rate than the other three lawns in all salinity levels. Manuscript profile