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    • List of Articles ابوالفضل توسلی

      • Open Access Article

        1 - Effect of Organic and Inorganic Fertilizers on Quantitative and Qualitative Characteristics of Pearl Millet (Panicum miliaceum L.) and Red Bean (Phaseolus vulgaris L.) in Intercropping
        A. Tavassoli A. Ghanbari D. Ramazan S.M. Mousavi-nik
        This experiment was conducted at Agriculture Research Center of Zabol University during 2007 cropping season. The experiment was split plot, based on randomized complete block design with three replications. The main factors consisted of unfertilized (control) (F1), rec More
        This experiment was conducted at Agriculture Research Center of Zabol University during 2007 cropping season. The experiment was split plot, based on randomized complete block design with three replications. The main factors consisted of unfertilized (control) (F1), recommended fertilizer (F2), recommended manure (F3), half of recommended manure + half of recommended fertilizer (F4) and sub factors were cropping of millet (I1), 75% millet + 25% bean (I2), 50% millet + 50% bean(I3), 25% millet + 75% bean (I4) and sole crop of bean (I5). Results showed that were for these tow species the highest grain and dry matter yield and harvest index (HI) obtained from half of recommended manure + half of recommended fertilizer treatment. However, fertilizer treatments did not have significant effect on 1000-seeds weight. Highest land equivalence ratio (LER) for grain and dry matter yield was achieved from half of recommended manure + half of recommended fertilizer treatment. The highest crude protein (CP), P and K content in each of the forage crops obtained from recommended fertilizer treatment. Interrace culture different ratios treatments, for millet the highest grain and dry matter yield and P and K content achieved from sole cropping. While highest harvest index (HI), 1000-seeds weight and CP content in millet forage obtained from their intercroppings. Highest bean values for all traits in achieved from its sole cropping. Furthermore, highest LER for dry matter and grain obtained from 25% millet + 75% bean treatment. Manuscript profile
      • Open Access Article

        2 - Evaluation Nitrogen and Radiation Use Efficiency of Wheat (Triticum aestivum) under Irrigation Levels
        A. Ghanbari B. Fakheri E. Amiri A. Tavassoli
        Water and nitrogen are among the most important limiting factors controlling yield in crops. With due attention to importance this subject, in wheat a split plot experiment was carried out in the field, using randomized complete block design with three replications unde More
        Water and nitrogen are among the most important limiting factors controlling yield in crops. With due attention to importance this subject, in wheat a split plot experiment was carried out in the field, using randomized complete block design with three replications under different irrigation and nitrogen levels during the cropping season of 2009-10 in Shirvan region. The experimental treatments consisted of four levels of irrigation, I1= optimum irrigation (field capacity, FC), I2= Irrigation at 80% FC, I3= Irrigation at 60% FC and I4= without irrigation which were assign to main-plots, and four levels of nitrogen fertilizers, namely, N1= 0, N2= 100, N3= 175 and N4= 250 kg N/ha to sub-plots. The results of experiment showed that the highest amount of seed yield, biological yield, leaf area index during different growth stages, radiation use efficiency and nitrogen content in whole wheat and seed obtained from treatment of optimum irrigation (I1) and applications of highest nitrogen fertilizer level (N4), but there wasn’t significant different between this treatment with treatment of optimum irrigation and consumption of 175 kg N/ha (I1N3). The lowest values were obtained from treatment of no irrigation and nitrogen (I4N1). For nitrogen use efficiency there was two different conditions. In the first condition, nitrogen use efficiency increased under optimum irrigation (I1) and irrigation at 80% FC (I2) with increasing nitrogen level from N1 to N4. In the second condition, nitrogen use efficiency decreased under irrigation of 60% FC (I3) and without irrigation (I4) with increasing nitrogen level from N1 to N4. Generally, it can be concluded that to obtain the highest yield in region, optimum irrigation is necessary. To obtain highest nitrogen fertilizer consumption and seed yield 250 kg N/ha would be required however there wasn’t significant difference between 250 an 175 kg N/ha applications. Manuscript profile
      • Open Access Article

        3 - Effect of Sowing Date on Some Agronomic Characteristics and Seed Yield of Winter Wheat Cultivars
        A. Ganbari H. Roshani A. Tavassoli
        To evaluate the effect of sowing dates on yield, yield components and some agronomic characteristics of four winter wheat cultivars and also their phenological changes, a factorial experiment based on randomized complete block design with three replications was carried More
        To evaluate the effect of sowing dates on yield, yield components and some agronomic characteristics of four winter wheat cultivars and also their phenological changes, a factorial experiment based on randomized complete block design with three replications was carried out at the Agriculture Research Station of Ardabil (Iran) during 2009 growing season. First factor consisted of four wheat cultivars (Azar2, Sabalan, Sardari and Zagros) and second factor consisted of four sowing dates (1st, 10th, 20th and 30th of September). The results showed that sowing date had significant effect on the number of spikes, the number of seed per spike, 1000-seed weight, germination percentage, days to spike appearance, days to ripening, growing degree days, biological yield, seed yield and harvest index. The highest and lowest seed yields of wheat were obtained from sowing date of the September the first (4616 kg/ha) and sowing date of September 30th (2197 kg/ha) respectively. Delaying planting decreased the number of spikes per m2 and 1000-seed weight. Cultivars had significant effect on all of the traits measured, except leaf number, fertile and non-fertilie tillers. The highest and the lowest seed yields were obtained from Sabalan (4750 kg/ha) and Zagros (2757 kg/ha) cultivars respectively. Interaction of sowing date and cultivar were significant on all of traits measured, except stem height, the leaf number, the number of spikes, 1000-seed weight and seed yield (P<%1). On the whole, it can be concluded that the first sowing date (September the first) and Sabalan can be recommended to the farmers of Ardabil region and similar climatic conditions for higher yields. Manuscript profile
      • Open Access Article

        4 - The Effect of Vesicular Arbuscular Mycorrhizal (VAM) on Yield and Yield Components of Three Sorghum (Sorghum bicolor) Cultivars
        A. Mehraban S.M. Moussavi Nik A. Tavassoli
        To evaluate the influence of vesicular arbuscular mycorrhizal (VAM) on yield and yield components of three sorghum cultivars, a factorial experiment based randomized complete block design with four replications was carried out in 2007, at the Agricultural Research Cente More
        To evaluate the influence of vesicular arbuscular mycorrhizal (VAM) on yield and yield components of three sorghum cultivars, a factorial experiment based randomized complete block design with four replications was carried out in 2007, at the Agricultural Research Center of Zahak, Iran. The treatments were different mycorrhiza species in three levels: without mycorrhiza (M1), Glomus etanicatum (M2) and G. mosseae(M3) and three cultivars of sorghum: local cultivars (C1), KGS25 (C2) and KGS29 (C3). The results showed that all of the traits measured were increased by inoculation of cultivars with mycorrhiza. The highest plant height (165.1 cm), stem diameter (1.61 cm), flag leaf length (27.22 cm), flag leaf width (3.67 cm) and ear width (5.00 cm) was obtained by inoculation of seed with Glumus etanicatum, and highest ear length (19.21 cm), ear number (2.51), seed number per ear (10252.11), 1000-seed weight (17.56 g) and grain yield (1967.32 kg/ha) by using Glumus mossea. The highest leaf width and length belonged to local cultivar, and the highest seed yield to KGS 29 cultivar. However, differences of other traits among sorghum cultivars were not significant. Based on the experimental results it can be concluded that highest grain yield may be obtained by inoculating seeds of KGS 29 with Glumus mossea.  Manuscript profile
      • Open Access Article

        5 - The Effect Organic Fertilizer on Quantitative and Qualitative Characters of Basil (Ocimum basilicum) in Sistan Region
        Tahmineh Mir Arab Esa Piri Abolfazl Tavassoli Mehdi Babaeiyan
        To evaluation the effect of manure, compost and vormicompost on yield and yield components of basil (Ocimum basilicum), a pot experiment was carried out as completely randomized design with three replications in Zabol, Sistan, in 2013. Bio fertilizer treatments consiste More
        To evaluation the effect of manure, compost and vormicompost on yield and yield components of basil (Ocimum basilicum), a pot experiment was carried out as completely randomized design with three replications in Zabol, Sistan, in 2013. Bio fertilizer treatments consisted of seven levels: F1= control (no fertilizer), F2= 20% vormicompost, F3= 40% vormicompost, F4= 20% compost, F5= 40% compost, F6= 20% manure and F7= 40% manure. Traits measured were plant high, number of branches, number of seeds per plant, dry weight, essence content and yield. The results showed that the use of bio fertilizer significantly improved the quantity and quality basil characters. Treatments had a significant effect on most of the measured traits and increased all of the traits as compared to thos of control. Thus, with the exceotion of 1000 grain weight, highest amounts were obtained for plant height, number of branches, number of seeds per plant, dry weight, essence content and essence yield by using 40% vormicompost and lowest to those of control treatment. Our results also showed that increasing vermicompost, compost and manure from 20% to 40% increased plant height, number of branches, number of seeds per plant, dry matter and essence percent. Generally, the use of organic fertilizers, as compared with not using them, produced optimum quality and quantity of basil. As a whole, it can be said that using bio fertilizers may help to achieve sustainable agriculture goals. Manuscript profile
      • Open Access Article

        6 - Effect of Salinity on Osmotic Adjustment, Yield and Essence of Local Landraces Ajowan (Trachyspermum ammi L.)
        Isa Piri Mousa Keshtegar Abolfazl Tavassoli Mehdi Babaeian
        Ajowan is one of the most important medicinal plants in Zahedan region. Salinity and drought are the main causes of yield reduction of plants in Sistan and Balochestan. To evaluate the effect of salinity on yield and quality of ajowan a factorial experiment with randomi More
        Ajowan is one of the most important medicinal plants in Zahedan region. Salinity and drought are the main causes of yield reduction of plants in Sistan and Balochestan. To evaluate the effect of salinity on yield and quality of ajowan a factorial experiment with randomized complete block design with three replications was conducted at the greenhouse of the Payam Noor University of Agriculture in Zahedan in 2016. Treatments were two populations of ajowan: C1: local and C2: Pakistani which were considered as the first factor and five salinity levels 0, 2, 4, 6 and 8 d/ms as the second. The results of this experiment showed that highest root length, stem height, plant fresh weight and plant dry weight and yield of essence belonged to local population under saline condition. Increasing salinity levels beyond 4 ds/ms decreased quantitative traits significantly but increased essential oil content and concentrations of osmotic regulants (prolin and carbohydrate) as compared to that of control. This may indicate that ajowan is tolerant to salinity. Manuscript profile
      • Open Access Article

        7 - Effect of Using Different Levels Manure on Quality and Quantity of Rosemary (Rosmarinus officinalis L.) under Salt Stress Condition
        Issa Piri Abbas Harati Abolfazl Tavassoli Mahdi Babaeian
        To study the effects of using different levels manure under salt stress conditions on the quantity and quality of rosemary a field experiment is conducted in split plot experiment based on randomized complete block design with three replications at Zahedan during fall s More
        To study the effects of using different levels manure under salt stress conditions on the quantity and quality of rosemary a field experiment is conducted in split plot experiment based on randomized complete block design with three replications at Zahedan during fall season of 2013-2014. The experimental treatments consisted of salinity with two levels (irrigating the field with drinking water of Zahedan [EC = 1.1 ds/m (S1)] and irrigating the field with salty water of Zahedan [EC = 4.4 ds/m (S2)] considered as the main factor and using manure with four levels (M1- without manure, M2- 15 t.ha-1, M3 - 30 t.ha-1 and M4 - 45 t.ha-1) as sub factor. Traits evaluated were plant height, leaf dry weight, leaf to stem ratio, shoot dry weight, percentage and yield of essence. Experimental results showed the salt stress did not affect significantly plant height, shoot fresh weight, shoot dry weight, biomass and essence of rosemary as comparied with drinking water (non-salinity), but a decreasing effect of saline water was observed. Using 45 t.ha-1 of manure, in comparison with other manure treatments, did have beneficial effect on most of the traits under study. However, no significant difference was observed between this treatment and with that of 30 t/ha. The simple correlation showed there is a positive and significant relationship between plant biomass and all other traits. The results also showed that there was positive and significant relationship between essence percentage and essence yield. Manuscript profile