Journal of Agroecology最新文献

{"title":"تأثیر رژیم آبیاری و عمق کاشت بر عملکرد و اجزاء عملکرد گیاه دارویی و صنعتی موسیر (Allium altissimum Regel.) در شرایط آب و هوایی مشهد","authors":"میلاد شریف روحانی, محمد علی کافی, احمد نظامی","doi":"10.22067/jag.v6i2.39364","DOIUrl":"https://doi.org/10.22067/jag.v6i2.39364","url":null,"abstract":"Shallot (Allium altissimum Regel.) is a medicinal, industrial and perennial plant that has underground tubers. It is one of the most important Allium species in Iran, which normally grows in semi-cold to very cold highlands. Because of being a wild plant, shallot is encounter with water deficit during its growth season. Therefore evaluation of water requirement of shallot is important. In order to assess the effects of different irrigation regimes and planting depth, a factorial experiment based on randomized complete block design with three replications was conducted at Agricultural Research Station Ferdowsi University of Mashhad, faculty of Agriculture. Treatments were five irrigation levels: no irrigation (I1), irrigation after 80±5 mm evaporation from pan evaporation (I2), irrigation after 60±5 mm evaporation from pan evaporation (I3), irrigation after 40±5 mm evaporation from pan evaporation (I4) and irrigation after 20±5 mm evaporation from pan evaporation (I5, control) and two levels of sowing depth of 5 cm (D1) and 10 cm (D2). Results showed that dry bulb yield, biological yield, harvest index and plant height were reduced by increasing irrigation intervals. Sowing depth had no significant effect on the parameters studied. Also the interaction between irrigation levels and sowing depth reduced plant height, dry bulb yield and harvest index. The interaction between irrigation and sowing depth was significant in leaf area index and crop growth rate. Shallot reacts to the amount of available water positively, but sowing depth of 10 cm has no effect on the bulb.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128229378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"مطالعه کمی و کیفی تولید علوفه در کشت مخلوط کوشیا (Kochia scoparia L.) با ارزن پادزهری (Panicum antidotale Retz.) تحت شرایط آبیاری با آب شور","authors":"محمدعلی فرجیان مشهدی, محمد علی کافی, احمد نظامی","doi":"10.22067/JAG.V5I2.24494","DOIUrl":"https://doi.org/10.22067/JAG.V5I2.24494","url":null,"abstract":"Salinity of soil and irrigation water creates major problems for forage production. This study was aimed to evaluate the quality and quantity of forage production in intercropping of kochia (Kochia scoparia L.) with blue panic grass (Panicum antidotale Retz.) under irrigation with saline water (4.9 dS.m-1). The study was performed based on randomized complete block design with three replications during growing season 2010-2011 at Salinity Research Field, of Ferdowsi University of Mashhad. Treatments were five different levels including 100, 75, 50, 25 and 0 percentage of relative composition of the two species. Treatment of 50% blue panic grass and 50% kochia with an average of 1408 g.m-2 produced the highest dry matter yield followed by 25% blue panic grass + 75% kochia and 75% blue panic grass + 25% kochia produced 1317 and 993 g.m-2, respectively. Due to lower growth rate of blue panic grass in the first year, a large proportion of dry matter in the mixture was associated with kochia and land equivalent ratio was less than one in all intercropping treatments. In the first and the second clippings, there was no significant difference between intercropping treatments in terms of crude protein, ash, NDF and ADF.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"21 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132511979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"بررسی اثر کودهای بیولوژیک و آلی بر برخی صفات کمّی و مقدار اسانس گیاه دارویی مرزه (Satureja hortensis L.)","authors":"پرویز رضوانی مقدم, افسانه امین غفوری, سارا بخشایی, لیلا جعفری","doi":"10.22067/JAG.V5I2.24460","DOIUrl":"https://doi.org/10.22067/JAG.V5I2.24460","url":null,"abstract":"Plant growth promoting bacteria with various mechanisms such as an increase in uptake and availability of nutrients can improve plant growth. In order to evaluate the effects of biofertilizers and Vermicompost on quantitative characteristics and essential oil content of vegetative parts of summer savory, a field experiment was conducted during growing season of 2008- 2009 at Agriculture Research Station, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran. A randomized complete block design with three replications was used. Treatments included: Nitragin, Nitragin+Vermicompost, Nitragin+Nitroxin, Nitragin+Phosphate solublizing bacteria, Nitragin+Phosphate solublizing bacteria+Vermicompost, Nitragin+Phosphate solublizing bacteria+Nitroxin, Nitragin+Nitroxin+Vermicompost and control. Plants were harvested twice at 10% flowering stag. The result showed that biofertilizers and Vermicompost had significant effects (p≤0.01) on plant height, percentage of leaf and stem, biological yield and essential oil contents of leaves in both harvests. The combination of Nitragin + Nitroxin and Vermicompost and control treatments had the highest and the lowest plant height, percentage of stem and leaf, and biological yield. It seems that seed inoculation with biofertilizers enhanced root development and hence availability of moisture and nutrients, particularly nitrogen and phosphorus. Therefore, summer savory inoculation with biofertilizers could improve some quantitative and essential oil contents.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113959375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"بررسی تأثیر کودهای بیولوژیک و حجم های مختلف آب در هر نوبت آبیاری بر خصوصیات رویشی و عملکرد دانه کنجد (Sesamum indicum L.)","authors":"دل سرورخرم, پرویز رضوانی مقدم, افسانه امین غفوری, جواد شباهنگ","doi":"10.22067/JAG.V5I2.24461","DOIUrl":"https://doi.org/10.22067/JAG.V5I2.24461","url":null,"abstract":"In order to study the effects of biofertilizers and different water volume per irrigation on vegetative characteristics and seed yield of sesame (Sesamum indicum L.), an experiment was conducted at the Research Greenhouse of Faculty of Agriculture, Ferdowsi University of Mashhad, during 2009. This experiment was conducted as factorial based on randomized complete block design with three replications. The first and the second factors were biofertilizers (Nitragin, Nitroxin, bio-phosphorus and control) and water volume per irrigation (100, 200 and 300 ml), respectively. The results showed that the simple effects of biofertilizer and irrigation volume were significant (p≥0.05) on plant height, the first internode length, number and dry weight of leaves, dry weight of stem, chlorophyll content and relative water content (RWC) of sesame. Also, interaction between biofertilizer and water volume per irrigation was significant (p≥0.05) plant height and RWC. The maximum and the minimum sesame seed yield were observed in Nitragin and control with 204.4 and 100.0 kg.m-2, respectively. The highest seed yield was observed in 100 ml (202.1 kg.m-2) and the lowest was achieved with 300 ml (170.1 kg.m-2) per irrigation water. Application of biofertilizers enhanced root development and hence availability of moisture and nutrients, particularly nitrogen and phosphorus. On the other hand, since these fertilizers are promote of growth regulator and hence in basement of growth and photosynthesis of sesame. With increasing irrigation volume from 100 to 300 ml, growth of sesame was decreased. Therefore, sesame application of biofertilizers could improve its vegetative characteristics in dry and semi-dry regions.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116814980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"امکانسنجی استفاده از سوپر جاذب رطوبت بهمنظور کاهش تنش خشکی وارده به ذرت (Zea mays L.) در یک نظام زراعی کمنهاده در شرایط مشهد","authors":"محسن جهان, نفیسه کمایستانی, فاطمه رنجبر","doi":"10.22067/JAG.V5I3.28999","DOIUrl":"https://doi.org/10.22067/JAG.V5I3.28999","url":null,"abstract":"In order to investigate the effects of super absorbent polymer application on reduction of drought stress to corn, a split plot arrangement based on randomized complete block design with three replications was conducted at Research Field of Agriculture Faculty of Ferdowsi University of Mashhad during growing season of 2010-11. The main plot treatments were 1) application of 40 kg.ha-1 super absorbent, 2) application of 80 kg.ha-1 super absorbent and 3) no application of super absorbent polymer. Three irrigation intervals (7, 10 and 14 days) assigned to sub plots. The results showed that super absorbent application affected plant height (H), and dry matter production (DM) as the highest of these traits resulted from level 2 of super absorbent application (140.5 cm, and 144.5 g.m-2, respectively). H, DM, canopy temperature (CT), cob number (N), fresh yield (FY), economic yield (EY) and 100-seed weight affected by irrigation intervals. There was no significant difference between 10 and 14 days irrigation interval as H, DM, CT, harvest Index (HI) and 100-seed weight, these results could be important concerning to reduce used water to irrigate corn. As experimental treatments did not have any effect on Leaf Area Index (LAI), and HI, it seems the positive effects of treatments revealed due to improved soil water holding capacity, soil physical properties improvement and reduction of drought stress. Interaction between super absorbent and irrigation intervals indicates that by level 2 super absorbent applications there are no significant differences between 14 and 10 days irrigation intervals, considering all traits. The same interaction just as before happened for 7 and 14 days irrigation intervals, except of EY and DM. In the other hand, by increasing application of super absorbent it could be possible to increase corn irrigation intervals from 7 to 14 days in Mashhad conditions without any reduction in yield and yield components. In general, these results indicate that super absorbent application could increase soil water holding capacity, reduce drought stress and partially supply corn water requirement during the growing season without any reduction in yield.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116079178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ارزیابی تأثیر همزیستی با میکوریزا بر عملکرد، اجزای عملکرد و اسانس دو گونه دارویی رازیانه (Foeniculum vulgare Mill.) و زنیان (Carum copticum L.) تحت تأثیر مقادیر نیتروژن","authors":"جواد شباهنگ, دل سرورخرم, رحمت الله قشم","doi":"10.22067/JAG.V5I3.29001","DOIUrl":"https://doi.org/10.22067/JAG.V5I3.29001","url":null,"abstract":"In order to investigate the effects of mycorrhiza symbiosis and different nitrogen levels on yield, yield components and essential oil content and yield of fennel (Foeniculum vulgare Mill.) and ajowan (Carum copticum L.), a field experiment was arranged in a factoriel based on a randomized complete block design with three replications at the Agricultural Research Station, Ferdowsi University of Mashhad during growing season 2009-2010. The first and the second factors were inoculation with mycorrhiza (with and without inoculation) and nitrogen levels as Urea (0, 50 and 100 kg.ha-1), respectively. Inculated soil with 200 g mycorrhiza (Glomus intraradaices) was applied at planting time. Urea was used in two stages such as plating time and one month after that. Ceriteria such as yield components (including number of branch, umbel, umbellet, seed and seed weight), biological and seed yield, harvest index and essential oil content and yield of fennel and ajowan were measured. Results showed that yield components, seed yield, biological yield, harvest index, essential oil content and yield of fennel and ajowan were affected by mycorrhiza and nitrogen level. Mycorrhiza increased fennel and ajowan seed yield (with 35 and 85%, respectively) and essential oil content (with 34 and 30%, respectively). The highest and the lowest 1000-seed weight of fennel and ajowan obsevered in inoculation (2.9 and 0.3 g) and control (2.1 and 0.2 g), respectively. Nitrogen improved all growth characteristics and decreased essential oil content. There were not significant differences between mycorrhiza and nitrogen interaction. Inoculation with mycorrhiza enhanced root development and hence availability of nutrients, particularly phosphorus. Also, nitrogen is the cause of increasement of photosynthesis rate and duration which promote growth and yield, but it declined essential oil content of two species.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127302769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"بررسی رفتار جوانه زنی بذر کوشیا (Kochia scoparia L. Schard) در واکنش به درجه حرارت ها و تنش های مختلف شوری","authors":"سمیرا صبوری راد, محمد علی کافی, احمد نظامی, محمد بنایان اول","doi":"10.22067/JAG.V4I4.17803","DOIUrl":"https://doi.org/10.22067/JAG.V4I4.17803","url":null,"abstract":"Kochia (Kochia scoparia L. Schard) is an annual, halophyte and drought resistant plant that can be irrigated with saline water and a valuable source for forage under drought and saline ecosystem. In order to evaluate the germination characteristic of kochia under different temperatures and salinity stress levels, an experiment was conducted at Physiology Lab of Ferdowsi University of Mashhad, Iran during year of 2009. The experiment was conducted in a completely randomized design with four replications. Treatments included nine levels of salinity (0, 5, 10, 15, 20, 25, 30, 35 and 40 dS.m-1) using NaCl and eight temperature levels (5, 10, 15, 20, 25, 30, 35 and 400C). Analysis of variance showed that the different levels of temperature and salinity stress had significant effects (p≤0.05) on percentage of germination, mean germination time, germination index, dry weight and length of seedling and interaction between temperature and salinity stress had the same effect. The highest percentage of germination was in 250C and in control levels that didn’t show any significant effect with 5 and 10 dS.m-1. The shortest mean germination time observed at 250C (20.1, 21.1 and 11.1 days in three primary treatments) and the highest one observed in 35 dS.m-1 at 100C. The highest germination index (20.37) occurred at 250C and in control level. Also, by increasing in salinity level, dry weight and length of seedling decreased. Anyway, based on the results of the present study, kochia is able to germinate in different salinity levels and has a high ability to recover itself.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128268736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ارزیابی اثرات زیست محیطی تولید چغندرقند (Beta vulgaris L.) با روش ارزیابی چرخه حیات (مطالعه موردی: مزارع استان خراسان جنوبی)","authors":"حمزه میرحاجی, مهدی خجسته پور, محمدحسین عباسپور فرد, سیدمحمد مهدوی شهری","doi":"10.22067/JAG.V9I2.14964","DOIUrl":"https://doi.org/10.22067/JAG.V9I2.14964","url":null,"abstract":"The importance of environmental protection in modern communities is vital, the action and implementation of any program requires the sufficient knowledge and understanding of environment. One of the methods to preserve natural resources and achieving sustainable development, especially sustainable agriculture, is the environmentally evaluation of agriculture production processes. Life cycle assessment approach is an accepted method for determining the side effects of a production process on environment during its complete life cycle. In this research, the impacts of global warming, acidification, fossil resources depletion and water resources depletion of sugar beet (Beta vulgaris L.) production on environment is investigated using life cycle assessment method in Khezri Farming Company, one of the major production areas in South Khorasan province. The final environmental indices for global warming, acidification, fossil resource depletion and water resources depletion were 0.0003, 0.002, 0.025 and 0.073, respectively. In other words, the effect of water resources depletion has the greatest damaging potential on environment among others in sugar beet production in this region.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127874170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"تاثیر شدت و زمانهای مختلف میدان مغناطیسی بر رفتار جوانه زنی و رشد گیاهچه گندم(Triticum aestivum L.)","authors":"حسن فیضی, پرویز رضوانی مقدم, علیرضا جعفرزاده کوچکی, ناصر شاه طهماسبی, امیر فتوت","doi":"10.22067/JAG.V3I4.14905","DOIUrl":"https://doi.org/10.22067/JAG.V3I4.14905","url":null,"abstract":"به منظور بررسی تأثیر شدت و مدت زمان های مختلف میدان مغناطیسی بر خصوصیات جوانه زنی بذر گندم (Triticum aestivum L.) رقم پیشتاز، آزمایشی در آزمایشگاه تحقیقات عالی دانشکده کشاورزی دانشگاه فردوسی مشهد در سال 1389 انجام شد. تیمارهای آزمایشی شامل شدت و مدت زمان های مختلف میدان مغناطیسی بودند. شدت میدان مغناطیسی شامل قراردادن بذرها در معرض میدان های مغناطیسی ثابت 50، 100 و 150 میلی‌تسلا و مدت زمان در معرض قراردادن بذرها برای هر شدت شامل 10، 20 و 30 دقیقه و نیز یک تیمار میدان مغناطیس دایم با شدت سه میلی تسلا و شاهد (بدون در معرض قراردادن بذر) بودند. بنابراین، آزمایش با تعداد 11 تیمار در قالب طرح کاملا تصادفی با چهار تکرار انجام شد. نتایج نشان داد که میدان مغناطیسی بطور معنی داری بر متوسط زمان جوانه زنی (MGT) تأثیر گذاشت، به طوریکه کمترین MGT و بیشترین سرعت جوانه زنی در تیمار میدان مغناطیسی 100 میلی‌تسلا و مدت 20 دقیقه بدست آمد و MGT نسبت به شاهد 43 درصد کاهش یافت. کمترین سرعت جوانه زنی در تیمار میدان مغناطیسی 150 میلی‌تسلا در زمان های 10، 20 و 30 دقیقه بدست آمد. تیمارهای میدان مغناطیسی بر درصد جوانه زنی تأثیر معنی داری نشان ندادند. رشد ساقه چه نسبت به رشد ریشه چه بیشتر تحت تأثیر میدان مغناطیسی قرار گرفت. بیشترین طول ساقه چه در تیمار قراردادن بذرها در معرض میدان مغناطیسی با قدرت 100 میلی تسلا بدست آمد و کمترین آن در تیمار شاهد بود. تیمارهای میدان مغناطیسی بطور میانگین طول ساقه چه گندم را 27 درصد نسبت به شاهد افزایش داد. میدان مغناطیسی بر وزن خشک ریشه چه، ساقه چه، گیاهچه و شاخص بنیه تأثیر معنی داری نداشت. به نظر می رسد که در معرض قرارگرفتن بذرها در شدت میدان مغناطیسی 100 میلی تسلا به مدت 20 دقیقه اثر تحریک کنندگی و تیمارهای قوی تر اثر بازدارندگی بر صفات جوانه زنی داشتند.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132209067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"تأثیر قارچ اندوفیت Piriformospora indica بر برخی خصوصیات جو (Hordeum vulgare L.) در شرایط تنش خشکی","authors":"مهدی قبولی, فرج اله شهریاری احمدی, مژگان سپهری, سیدحسن مرعشی, قاسم حسینی سالکده","doi":"10.22067/JAG.V3I3.13558","DOIUrl":"https://doi.org/10.22067/JAG.V3I3.13558","url":null,"abstract":"اندوفیت‌های میکروبی که از مهمترین میکروارگانیسم‌های خاک محسوب می‌شوند با ایجاد تغییرات ژنتیکی، فیزیولوژیکی و اکولوژیکی در گیاهان میزبان خود، عملکرد آنها را در واحد سطح افزایش می‌دهند و امکان توسعه کشت آنها در خاک‌های شور، خشک یا اقلیم‌هایی با تنش‌های غیر زیستی و زیستی را فراهم می‌آورند. قارچ اندوفیت Piriformospora indica دارای خاصیت برانگیختگی رشد گیاه و افزایش مقاومت آن به تنش‌های محیطی از جمله خشکی، شوری و نیز بیماری‌های گیاهی می‌باشد. این پژوهش به بررسی توان قارچ اندوفیت P. indica در بهبود رشد و افزایش مقاومت گیاه جو (Hordeum vulgare L.) به تنش خشکی می‌پردازد. بدین منظور، در سال 1389، آزمایش گلخانه‌ای در گلخانه پژوهشکده بیوتکنولوژی اصفهان در قالب طرح‌ کاملا تصادفی (آزمایش فاکتوریل) با دو فاکتور شامل دو سطح قارچ (تلقیح و عدم تلقیح) و سه سطح خشکی (ظرفیت زراعی (F.C.)، 50 درصد ظرفیت زراعی و 25 درصد ظرفیت زراعی) با چهار تکرار انجام گرفت. نتایج حاصله نشان داد که قارچ P. indica سبب افزایش زیست توده اندام‌های هوایی و ریشه گیاهان تلقیح شده نسبت به گیاهان شاهد بود، بطوریکه وزن خشک اندام هوایی و ریشه در گیاهان تلقیح شده نسبت به شاهد به ترتیب 39 و 46 درصد افزایش نشان داد. همچنین در شرایط تنش محتوای نسبی آب گیاهان تلقیح شده بالاتر بود. علاوه بر فعالیت تحریک کنندگی رشد گیاه توسط قارچ نتایج حاکی از نقش موثر این قارچ در بهبود خصوصیات گیاه جو تجت شرایط تنش خشکی خصوصا در سطح F.C.25 درصد دلالت دارد. با توجه به این نتایج و نیز امکان کشت این قارچ در محیط کشت مصنوعی و بدون حضور میزبان، به نظر می‌رسد که امکان استفاده از این قارچ به عنوان عامل محرک رشد گیاه در تولید کود بیولوژیک برای انواع گیاهان زراعی وجود دارد و این قارچ می‌تواند نقش مهمی در نیل به کشاورزی پایدار ایفاء ‌نماید. همچنین با توجه به شرایط اقلیمی کشور ایران استفاده از این قارچ برای بهبود رشد و عملکرد گیاهانی نظیر جو، گندم و غیره تحت شرایط خشکی می‌تواند سودمند واقع شود.","PeriodicalId":287764,"journal":{"name":"Journal of Agroecology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126464326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}