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      • Open Access Article

        1 - Comparison of bread and durum wheat photosynthesis and yield under salt stress and salicylic applying condition
        A.R. Bagheri
        In order to investigate the effect of salicylic acid as a salinity reverse effects retardant, an outdoor pot investigation was carried out in Islamic Azad University, Eghlid branch from Nov. 2010 to May 2011. The experiment was conducted as triple factorial based on com More
        In order to investigate the effect of salicylic acid as a salinity reverse effects retardant, an outdoor pot investigation was carried out in Islamic Azad University, Eghlid branch from Nov. 2010 to May 2011. The experiment was conducted as triple factorial based on complete randomized design with three replications. The first factor comprised of two salinity levels (non saline irrigation water [EC=0] and saline irrigation water [EC=10ds/m]) and the second one consisted two morphologically similar wheat cultivars, Dena as durum and Shiraz as bread type, and the third factor was application or not the salicylic acid solute. The salt treatments were accomplished four weeks after seed sprouting. The salicylic acid treatments were applied a week prior to salinity application i.e. 3-4 leaf stage. The measured parameters were biological (BY) and grain yield (GY), photosynthetic parameters, chlorophyll content, relative water (RWC) and protein content. The results showed that salicylic acid application caused GY, BY, RWC, Chlorophyll and photosynthesis to increase, but it remains ineffective on protein content. Salinity caused reduction in BY, GY, RWC and photosynthesis, but increased protein and chlorophyll content. Bread cultivar showed higher GY amounts than durum one. Durum's GY was more susceptible to salinity than bread's. SA was more effective in durum wheat than in bred type. SA also had different effects under various salinity levels. It was more effective uner lower levels of salinity. Generally the highest and he lowest GY amounts were respectively seen in bread wheat under nonsline condition and with application of 0.5 mM SA, and in durum wheat under salinity without SA application. LTR>o  a>���( =LTR>(ZGS=13) گیاه بود. صفات اندازه گیری شده شامل فتوسنتز، میزان کلروفیل، محتوای نسبی آب، عملکرد و میزان پروتئین بودند. نتایج نشان داد که کاربرد سالیسیلیک اسید باعث افزایش BY  و GY ، RWC و میزان کلروفیل و فتوسنتز شد و روی پروتئین بی تاثیر بود. شوری باعث کاهش BY  و GY ، RWC و فتوسنتز شد و میزان پروتئین و میزان کلروفیل را افزایش داد. گندم نان عملکرد دانه بیشتری داشت. بین ارقام و مصرف سالیسیلیک اسید اثر متقابل معنی دار مشاهده شد. در حقیقت SA در گندم دوروم بیشتر از گندم نان اثر گذاشت. عملکرد دانه گندم دوروم بیشتر تحت تاثیر شوری قرار گرفت. اثر کاربرد سالیسیلیک اسید در تیمار شاهد شوری  و در تیمار 10 دسی زیمنس تا حدودی متفاوت بود.  با افزایش شوری اثر SA   کمتر شد. همچنین بین سه تیمار بکاربرده شده اثر متقابل معنی دار درجه سوم مشاهده شد. به طور کلی بیشترین عملکرد در گندم نان و در تیمار شوری شاهد با افزودن SA (5 گرم در بوته) مشاهده شد و کمترین میزان عملکرد در تیمار شوری 10 دسی زیمنس و در گندم دوروم بدون کاربرد SA مشاهده شد.   Manuscript profile
      • Open Access Article

        2 - Reaction of some sunflower genotypes to drought stress tolerance using indicators
        T. Avaz Abadian J.M Sinaki N.A. Hasani A.R. Dashtban M. Zarei
        This plan detection target of on rate tolerance to welter in condition none water to experimental   epilate stripe plat  with tree replicates  in 2011-2012 years in Damghan  city and Index welter Sensitivity, tolerance Index, Stress tolerance In More
        This plan detection target of on rate tolerance to welter in condition none water to experimental   epilate stripe plat  with tree replicates  in 2011-2012 years in Damghan  city and Index welter Sensitivity, tolerance Index, Stress tolerance Index,(GMP),(MP). Result shows that with been types proud action grain variation significant (P<0/05). In condition without stress Types 33 with 4790 kg. ha maximum production and also in stress condition type 33 wit been 2645 hg production maximum and maximum Index rate (STI) in top stress depended type. 33 type shows Maximum (MPL) (GMP) and calculation correlation index with production in normal condition and stress shows that production in stress condition YS related significant with (YP) and Index Totally except  sensitivity index in (SSI) and correlation (YP) With STI,MP,GMP, TOL significant correlation between MP with STI with GMP,STI with GMP positive significant and shows maximum correlation between MP,GMP,SSI shows related negative and non significant result In experimental shows the Index STI. MP, GMP, Index good for estimation production. Manuscript profile
      • Open Access Article

        3 - Effect of salicylic acid on physiological and biochemical parameters on resistant and sensitive chickpea (Cicer arietinum L.) genotypes under drought stress
        R. Ramezannezhad M. Lahouti A. Ganjali
        In order to study the effect of drought stress and salicylic acid on parameters of physiology (membrane stability index ) and biochemical ( photosynthetis pigments) an experiment was conducted under four drought levels, based on Field Capacity (100% FC, 75% FC, 50% FC, More
        In order to study the effect of drought stress and salicylic acid on parameters of physiology (membrane stability index ) and biochemical ( photosynthetis pigments) an experiment was conducted under four drought levels, based on Field Capacity (100% FC, 75% FC, 50% FC, 25% FC) and treatment of Salicylic acid (0 , 0.7 mM) using acompletely randomized design with three replications. The results showed increasing drought levels significantly decreased all parameters except chlorophyll a/b ratio in two genotypes. Application of salicylic acid (0.7 Mm) significantly increased membrane stability  index and carotenoids in MCC358 genotype and also increased chlorophyll b and total chlorophyll content in MCC441 genotype. It seems that inhibitory effect of drought stress in MCC441 genotype was more effective than MCC358 genotype. Also, Application of salicylic acid could not improve growth parameters in MCC441genotype. ir=RTL�� pn�~��) ir=RTL>) در چهار سطح تنش خشکی بر اساس ظرفیت زراعی ( ظرفیت زراعی، 75% ظرفیت زراعی، 50 % ظرفیت زراعی و 25% ظرفیت زراعی) و تیمار اسید سالیسیلیک با غلظت های 0 و 7/0 میلی مول به صورت فاکتوریل در قالب طرح کاملا تصادفی با سه تکرار انجام شد. نتایج نشان داد که تنش خشکی در تمام موارد به غیر از نسبت کروفیل a/b با عث کاهش معنی دار شاخص های مورد بررسی شد. تیمار اسید سالیسیلیک باعث افزایش معنی دار شاخص پایداری غشاء و میزان کاروتینوئید در ژنوتیپ MCC358 شد. اسید سالیسیلیک توانست باعث افزایش معنی دار محتوای کلروفیل b و کلروفیل کل در ژنوتیپ MCC441 شود. اما در ژنوتیپ MCC358 محتوای کلروفیل b بعد از تیمار با اسید سالیسیلیک بطور معنی داری نسبت به شاهد کاهش یافت. به نظر می رسد که تاثیر بازدارنده ی تنش خشکی بر ژنوتیپ MCC441 بیشتر از ژنوتیپ MCC358 بوده است و کاربرد اسیدسالیسیلیک با توجه به تاثیر آنتی اکسیدانی آن، اثری بر بهبود شاخص های مورد بررسی در ژنوتیپ MCC441 نداشت. Manuscript profile
      • Open Access Article

        4 - Effect of drought stress and salicylic acid on photosynthesis pigments and macronutrients absorption in two sunflower (Helianthus annuus L.) cultivars
        E. Nematollahi A. Jafari A. Bagheri
        To study the drought tolerance of different cultivars of sunflower (Helianthus annuus L.), an experiment was conducted in factorial experiment based on a completely randomized design with three replications. Two sunflower cultivars named Euroflour and Hysun 33 were used More
        To study the drought tolerance of different cultivars of sunflower (Helianthus annuus L.), an experiment was conducted in factorial experiment based on a completely randomized design with three replications. Two sunflower cultivars named Euroflour and Hysun 33 were used as main factor and different levels of drought stress (FC, - 0.3, - 0.6 and - 0.9 MPa) and foliar application of salicylic acid (0 as control and 100 μM) were used as sub factor. Results indicate that by increasing drought level, leaves macronutrients and photosynthesis pigments in both cultivars increased significantly. Maximum rate of decreasing in above parameters observed in –0.9 MPa level. Results show that Hysun33 cultivar is more drought resistance than Euoroflour. Foliar application of salicylic acid in 100 μM concentration has also significantly increase all parameters of both sunflower cultivars under drought stress. ��� ���������حلول پاشی توسط سالیسیلیک اسید (صفر و 100 میکرومولار) به عنوان فاکتور فرعی انتخاب گردیدند. نتایج حاصل از پژوهش حاکی از این است که با افزایش سطوح تنش خشکی، کاهش معنی داری در جذب عناصر غذایی ماکرو و همچنین رنگدانه های فتوسنتزی به وجود آمد. بیشترین میزان کاهش در صفات مذکور، در سطح 9/0- مگاپاسکال بود. با استناد به نتایج این پژوهش، رقم هایسون 33 در مقایسه با یورفلور، به دلیل توانایی بالاتر در جذب عناصر غذایی و همچنین محتوای بیش تر رنگدانه های فتوسنتزی برگ، به عنوان رقم مقاوم تر آفتابگردان نسبت به شرایط تنش خشکی در مقایسه با رقم یوروفلور شناخته شد. محلول پاشی سالیسیلیک اسید با غلظت 100 میکرومولار نیز از طریق افزایش معنی دار جذب عناصر غذایی ماکرو و رنگدانه های فتوسنتزی، سبب کاهش خسارت ناشی از تنش خشکی در هر دو رقم آفتابگردان گردید. Manuscript profile
      • Open Access Article

        5 - The effects of glycine betaine on yield and yield components of sunflower(Helianthus annuus L.) in saline condition
        M. Armin
        To evaluate the effects of glycine betaine (GB) on yield and yield components of sunflower (Helianthus annuus L.) in saline condition, a field experiment was conducted in Sabzevar Branch, Islamic Azad university on 2011. The experiment was in factorial arrangement on th More
        To evaluate the effects of glycine betaine (GB) on yield and yield components of sunflower (Helianthus annuus L.) in saline condition, a field experiment was conducted in Sabzevar Branch, Islamic Azad university on 2011. The experiment was in factorial arrangement on the basis of a randomized complete blocks design with 3 replications. Factors were time of GB application at 3 stage (V5( 5 leaves), R1 (forming of terminal bud)and R5(beginning of flowering) and 4 GB rate (0, 50,100 and 150 mM).The results showed that foliar application of GB at V3 had the highest economic yield, biological yield and grain number in capitul. Delay in GB application was increased potassium level in leaf. 100 seed weight was not affected by GB time application, although V5 had the highest 100 seed weight. Increasing of GB rate increased linearly yield and yield components. 150 mM foliar application of GB had maximum yield and yield components. There was not significant difference between 100 and 150 mM foliar application of GB. Na content increased 5.75% by increased GB from 100 to 150 mM. Overall in saline conditions, 100 mM foliar application of GB at V5 was found be the best treatment for achievement of maximum grain yield. �� bd������e:AR-SA;mso-ansi-font-weight:bold'> بود. مقایسه میانگین تیمارها نشان داد که بیشترین عملکرد دانه،  عملکرد بیولوژیک، تعداد دانه در طبق و درصد پتاسیم برگ در محلول پاشی در هنگام 5 برگی به دست آمد، در صورتی که تأخیر در زمان محلول پاشی سبب افزایش مقدار پتاسیم در برگ آفتابگردان شد. وزن صد دانه تحت تأثیر زمان محلول پاشی قرار نگرفت، اگرچه بیشترین وزن صد دانه در محلول پاشی در زمان 5 برگی مشاهده شد. با افزایش مقدار مصرف ﮔﻼﻳﺴﻴﻦﺑﺘﺎﺋﻴﻦ عملکرد و اجزای عملکرد به صورت خطی افزایش یافت و بیشترین مقدار این صفات در محلول پاشی به مقدار 150 میلی مولار  به دست آمد که تفاوت آماری معنی داری با مصرف 100 میلی مولار نداشت. افزایش میزان محلول پاشی از 100 به 150 میلی گرم سبب افزایش 75/5% میزان سدیم در گیاه شد. در مجموع می‌توان محلول پاشی در زمان 5 برگی به مقدار 100 میلی مولار را مناسب‌ترین تیمار برای حصول مناسب‌ترین عملکرد در شرایط شور توصیه کرد.   Manuscript profile
      • Open Access Article

        6 - Effect of application of manure and nitroxin fertilizer and gibberellin on yield and yield components of maize single cross 704
        Gh. Moafporian
        In order to investigate the effects of manure and application of Nitroxin fertilizer accompanied by gibberellin on corn (Zea mays L.) in Baiza (Fars province), a split factorial experiment arranged in randomized complete blocks design (RCBD) was conducted with three rep More
        In order to investigate the effects of manure and application of Nitroxin fertilizer accompanied by gibberellin on corn (Zea mays L.) in Baiza (Fars province), a split factorial experiment arranged in randomized complete blocks design (RCBD) was conducted with three replications. Treatments included manure(zero and 30 t ha-1) and Nitroxin fertilize (zero and 35 g a.i/ha-1) rrespectively, each at two levels  as main plots and three levels of gibberellin (zero, 100 and 200 ppm) were as sub-plots. Results showed that the effect of their interaction was not significant on many traits and characteristics but significant for single effect. The highest traits related to application of different levels of manure were obtained in treatment of 30 t of manure per hectare. The results related to Nitroxin fertilizer application of 35 g/ha-1 increased many traits. Gibberellin increased the traits but among the levels of between 100 and 200 ppm significant difference wasn’t observed on some traits. The highest grain yield was obtained in treatment of 30 t/ha-1 of manure, Nitroxin fertilizer the rate of 35 g/ha-1 plus 100 ppm gibberellin .Results showed that current conditions and the development of sustainable agriculture, use of these inputs can be beneficial and justified. Manuscript profile
      • Open Access Article

        7 - Determination of rhizobium bacteria strain for seed inoculating of bean in north of Fars
        A. Hemmati هادی Asadi Rahmani Gh.H. Masoudi
        Nitrogen is necessary for growth in plants. Symbiotic N2-fixation is the most of source nitrogen in legumes. A filed study was conducted to evaluation of 10 rhizobium strains (l-78, l-195, l-192, l-54, l-75, l-30, l-100, l-197. l-120 and l-177) and two nitrogen fertiliz More
        Nitrogen is necessary for growth in plants. Symbiotic N2-fixation is the most of source nitrogen in legumes. A filed study was conducted to evaluation of 10 rhizobium strains (l-78, l-195, l-192, l-54, l-75, l-30, l-100, l-197. l-120 and l-177) and two nitrogen fertilizers treatments (35 and 75 ppm N) with control treatment (without inoculation and N2 – fertilizer) in yield of bean in 2009-2010. Experimental design was randomized complete block (RCBD) with four replicates. The weight of dry mater, nitrogen in leaf and seed and yield of bean were calculated. In the first year, the results indicated that there was a significant different (at 5 %) in grain yield between treatments. The best seed yield and nitrogen in dry mater were obtained in L-54 strain treatment. This yield was 174 % increased to control treatments. In the second year, the results showed that there are significant different between treatments (at 5 %). The maximum yield was obtained  by     L-77 and L-54 strains with 1595 and 1511 kg/ha respectively. The yield of this treatments were 41 and 33 % increased than control treatment (without inoculate and nitrogen fertilizer). Base of the results in two years of experiment we showed that the highest yield and protein were obtained by rhizobium inoculated of bean    Manuscript profile
      • Open Access Article

        8 - The effect of nitrogen and weeds interference on millet (Panicum miliaceum) yield and yield components
        F. Izadi A.R. Bagheri H.R. Miri
        In order to consider the effects of nitrogen and weeds interference (Amaranthus retroflexus L and Chenopodium album) on millet yield and yield components, an experiment has been done in a greenhouse in Bavanat region, Fars province, in atumn 2010. The experimental desig More
        In order to consider the effects of nitrogen and weeds interference (Amaranthus retroflexus L and Chenopodium album) on millet yield and yield components, an experiment has been done in a greenhouse in Bavanat region, Fars province, in atumn 2010. The experimental design was completely randomized with a factorial treatment arrangements replicated three times. The first factor, was the rate of nitrogen from urea source including; 0, 100, 200 kg nitrogen per ha and the second factor was the competition of millet and weeds in 3 levels included a pure millet without weeds and 2 levels of millet and weeds intercropping (Pigweed and Lamsquarter). Measured traits were grain yield, biological yield, harvest index and plant relative yield (PRY). The results showed that the effects of weeds interference on  millet yield and yield components were significant. The increase of nitrogen level from 100 kg/ ha to 200 kg was not noticeably affect millet yield because of the high weeds competition; the increase of nitrogen resulted the decrease in milled yield. The effect of various nitrogen levels and various weed treatments and their effects on grain yield, biological yield and the harvest index of millet were significant. The PRY index decreases with the increase of weed density. In the mixed culture of millet and lambsquarter, PRY in lambsquarter was lower than millet and in the mix of millet and pigweed the amount of PRY was higher for pigweed. It may indicated that pigweed competed severely with millet Manuscript profile