Journal of Plant Nutrition (J PLANT NUTR)

Publisher: Taylor & Francis

Journal description

This authoritative journal serves as a comprehensive, convenient source of new and important findings exploring the influence of currently known essential and nonessential elements on plant physiology and growth - offering prompt publication of outstanding original research and review papers in this vital area of plant and soil science. Includes special symposium issues that focus on essential nutrients, heavy metals, and trace elements! Refereed by an internationally renowned editorial board ensuring the high level of scholarship, the Journal of Plant Nutrition provides insightful coverage of nutritional topics, such as hydroponics nutrient requirements for greenhouse crops container production media analysis of pine bark, peat, and artificial media floriculture production vegetable crop production fruit crop production ornamental production tropical crops foliage plants agronomic crops forestry and much more!

Current impact factor: 0.49

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 0.494
2013 Impact Factor 0.536
2012 Impact Factor 0.526
2011 Impact Factor 0.641
2010 Impact Factor 0.726
2009 Impact Factor 0.512
2008 Impact Factor 0.569
2007 Impact Factor 0.593
2006 Impact Factor 0.441
2005 Impact Factor 0.497
2004 Impact Factor 0.462
2003 Impact Factor 0.43
2002 Impact Factor 0.593
2001 Impact Factor 0.577
2000 Impact Factor 0.543
1999 Impact Factor 0.48
1998 Impact Factor 0.583
1997 Impact Factor 0.385
1996 Impact Factor 0.401
1995 Impact Factor 0.422
1994 Impact Factor 0.589
1993 Impact Factor 0.53
1992 Impact Factor 0.555

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.70
Cited half-life >10.0
Immediacy index 0.07
Eigenfactor 0.00
Article influence 0.18
Website Journal of Plant Nutrition website
Other titles Journal of plant nutrition (Online), Journal of plant nutrition
ISSN 0190-4167
OCLC 50775705
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
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  • Conditions
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    • On author's personal website or departmental website immediately
    • On institutional repository or subject-based repository after either 12 months embargo
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • The publisher will deposit in on behalf of authors to a designated institutional repository including PubMed Central, where a deposit agreement exists with the repository
    • STM: Science, Technology and Medicine
    • Publisher last contacted on 25/03/2014
    • This policy is an exception to the default policies of 'Taylor & Francis'
  • Classification
    green

Publications in this journal

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Eighteen soybean genotypes differing in aluminum (Al) tolerance were used to investigate genotypic differences in Al-induced citrate exudation and its role in Al tolerance. Aluminum accumulation and localization in soybean roots were examined by analysis of total Al and hematoxylin staining. Soybean genotypes exhibited a wide range of Al tolerance. Based on relative root elongation, several Al-tolerant genotypes from Brazil such as B1, B10, and B15 were more tolerant than the Al-tolerant PI 416937 (PI) and Perry. All soybeans exuded citrate in response to Al stress, and some Al-sensitive genotypes secreted more citrate than tolerant ones, showing no correlation between the Al tolerance and Al-induced citrate exudation. Further study found that both copper (Cu) and cadmium (Cd) stimulated citrate and malate exudation in soybean, indicating that organic acid secretion is not specifically induced by Al. Aluminum concentrations were significantly higher in 2-3 and 3-4 cm of segments than that in 0-1 and 1-2 cm segments under 15 μM AlCl3. Both the root mature zone and apex were heavily stained by hematoxylin after exposure to 10, 15, or 20 μM AlCl3 (24 h), whereas root elongation zone was not stained. After exposure to 50 μM AlCl3 for 20 min, the Al-tolerant PI was less stained by hematoxylin than the Al-sensitive Young, suggesting that Al accumulation in root apices seem to be an immediate response to Al stress, and related to differential Al sensitivity. Present results suggest that citrate secretion induced by Al stress may not be a key mechanism responsible for the differential Al tolerance of some soybean genotypes and other mechanism(s) conferring Al exclusion should exist and operate immediately after exposure to Al stress.
    Preview · Article · Jan 2047 · Journal of Plant Nutrition
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    ABSTRACT: The aim of the study was to examine effect of foliar titanium (Ti) application on vigor, fruiting, and quality and fruit storability of apple (Malus domestica Borkh.) trees. The experiment was carried out during 2000–2001 on mature “Szampion” apple trees/M.26 planted in a course-textured soil with a low level of organic matter and optimal status of nutrients. The trees were sprayed with TiCl4 solution: (1) before blooming, at the stage of green and pink bud; (2) during blooming, at the beginning of flowering and the petal fall; (3) after blooming, 1 and 3 weeks after petal fall; and (4) before fruit picking, 4 and 2 weeks before commercial harvest. In each spray, Ti was applied at a rate of 2.5 g ha. Trees sprayed with water served as a control. The results showed that foliar Ti sprays had no effect on vigor, fruit set, yielding, and appearance and apple storability. Foliar Ti application after flowering increased leaf Ti 30, 60, and 90 days after full bloom. Titanium sprays before harvest enhanced status of this element in fruit and leaves 90 days after bloom. Concentrations of essential macro- and microelements in leaf and fruit tissues were not affected by foliar Ti sprays. These results indicate that foliar Ti sprays of apple trees are not beneficial under conditions of optimal nutrition.
    No preview · Article · Jan 2033 · Journal of Plant Nutrition
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    ABSTRACT: A hydroponic experiment was conducted in a greenhouse to study the effect of cadmium (Cd) on uptake, accumulation, and distribution of three microelements [zinc (Zn), copper (Cu), and iron (Fe)] in cotton during ontogenesis and their difference among genotypes, using 3 genotypes with different Cd tolerances: Zhongmian 16, Zhongmian 16-2 (relatively tolerant-genotypes); and Simian 3 (relatively sensitive-genotype) and treated with 4 Cd concentrations (0, 0.1, 1, and 10 μM). Cadmium concentration in various organs was in the order: root > petiole > xylem > fruiting branch, leaf > phloem in vegetative organs; and in the order: seed coat, seed nut > boll shell > fiber in reproductive organs, respectively. There were no significant differences in Zn, Cu, and Fe concentrations of functional leaves and petioles between 0, 0.1, and 1 μM Cd treatments, while a significant increase with highly significant genotypic difference was observed in 10 μM Cd treatment, when compared with the control. A significant reduction in aboveground vegetative organs and increase in roots were observed for Zn concentration of cotton plants exposed to 1 or μM Cd. The reduction or increase in Zn concentration by Cd differs significantly among the 3 genotypes. One and 10 μM Cd lowered Zn, Cu, and Fe concentrations in aboveground vegetative organs, while increasing concentrations in root, implying that the translocation of these elements from roots to shoots was prevented by Cd treatments. Cadmium treatment did not affect Zn, Cu, and Fe concentration in seed coat, seed, and fiber, while it decreased concentrations in boll shell for all genotypes.
    No preview · Article · Jan 2019 · Journal of Plant Nutrition
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    ABSTRACT: A field study was conducted to evaluate the nitrogen status and yield of spinach grown in soils amended with prunings of Leucaena leucocephala, (applied at a rate of 3, 5, 7 or 11 t ha−1). A ‘no fertilizer’ 0 nitrogen (N) and 150 kg N ha−1 (recommended) were the control treatments. SPAD readings were recorded for the top six leaves. Nitrogen sufficiency indices were used to indicate the N status of plants. Application of L. leucocephala prunings increased spinach yields (8.98 – 13.86 t DM ha−1) relative to the 0N treatment (1.35 t DM ha−1) and yields increased with increasing rate of pruning application. SPAD readings showed a linear increase with the increase in applied prunings. There was preferential distribution of N to upper leaves. The relationship between shoot N concentration and SPAD readings was linear and strongest for the top three leaves (r2 = 0.84 - 0.92). The results indicate the potential of chlorophyll meter readings in assessing N status of leafy vegetables grown on soils amended with different levels of legume tree prunings.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Application of plant growth regulator (PGR) may alleviate some negative effects of environmental stresses such as salinity. A controlled experiment was conducted to study barley (Hordeum vulgare L. cv. Reyhane) growth, yield, antioxidant enzymes and ions accumulation affected by PGRs under salinity stress conditions at Shiraz University during 2012. The treatments were PGRs at four levels: water (as control), cycocel (CCC, 19 mM), salicylic acid (SA, 1 mM) and jasmonic acid (JA, 0.5 mM); and four salinity levels: no-stress (0.67 dS m−1, as control), 5, 10, and 15 dS m−1; which were arranged in a factorial experiment based on completely randomized design with four replications. The results showed that salinity stress significantly decreased plant height, peduncle length, leaf area, ear length, grain number, dry weight, grain yield, harvest index, potassium (K+) accumulation, and potassium/sodium (K+/Na+) concentration ratio which were closely associated with stress severity. However, PGRs compensated some of these negative effects, so that salicylic acid (SA) foliar application had the most ameliorative effect. Salt stress also increased Na+ accumulation as well as activity of peroxidase, catalase, and superoxide dismutase (SOD). Since ions discrimination and enhanced antioxidant enzymes are associated with salt tolerance, in this experiment PGRs application may have enhanced K+ accumulation and antioxidant enzymes activity. Activity of SOD and K+/Na+ ratio were found to be useful in salt tolerance manipulation in barley plants.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition

  • No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Zinc (Zn) malnutrition can be alleviated by increasing the dietary Zn intake through Zn biofortification of edible crops. Agronomic and genetic biofortification has been suggested as better option to increase the dietary Zn. In this study we show considerable genetic variability for seed Zn concentration in six leading finger millet genotypes. External application of Zn resulted in improved Zn concentration in different plant parts; in particular there was significant increase in seed Zn concentration in all genotypes. Though genotypes GPU28 and INDAF5 showed differences in root and shoot Zn at vegetative stage but at reproductive stage there was no significant difference. Apart from that, Zn application increased the seed iron (Fe) concentration with no or minimal effect on copper (Cu) concentration.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Phosphorus (P) deficiency is one of the most yield limiting factors for dry bean (Phaseolus vulgaris) production in tropical acid soils. Dry beans are invariably grown as mono crops or as inter crops under the perennial tropical crops. Information is limited regarding the influence of phosphorus fertilization on dry bean yield and yield components and P use efficiency in tropical acid soils. A greenhouse experiment was conducted to evaluate the influence of phosphorus fertilization on dry bean growth, yield and yield components and P uptake parameters. Phosphorus rates used were 0, 50, 100, 150, 200, and 250 mg P kg−1 of soil. Soil used in the experiment was an acidic Inceptisol. Grain yield, shoot dry weight, number of pods, and 100 grain weight were significantly (P < 0.01) increased with phosphorus fertilization. Maximum grain yield, shoot dry matter, number of pods, and 100 grain weight were obtained with the application of 165, 216, 162, and 160 mg P kg−1 of soil, respectively, as calculated by regression equations. Grain yield was significantly and positively associated with shoot dry weight, number of pods, P concentration in grain and total uptake of P in shoot and grain. Phosphorus use efficiency defined in several ways, decreased with increasing P rates from 50 to 250 mg P kg−1 of soil. Maximum grain yield was obtained at 82 mg kg−1 of Mehlich 1 extractable soil P. Results suggest that dry bean yield in Brazilian Inceptisols could be significantly increased with the use of adequate rates of phosphorus fertilization.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: A diazotrophic bacterial strain denominated 11B isolated from the rhizosphere of a banana plant (Musa spp.), was characterized morphologically, biochemically and phylogenetically, whiles the symbiotic potential of the strain was assessed through tests of host range, interstrain nodulation competitiveness, capacity to synthesize indole-3-acetic acid (IAA) and phosphate solubilizing. Based on morphological and physiological–biochemical properties, as well as 16S ribosomal deoxyribonucleic acid (rDNA) sequence and phylogenetic analysis the strain 11B belonged to the genus Rhizobium with 100.0% sequence similarity with Rhizobium tropici CAF440. The optimum growth temperature and pH for strain 11B are 28°C and 7.2 respectively. This strain was able to produce IAA, solubilize phosphate and fix large amounts of nitrogen (N2) and forms effective nodules on the legumes Acaciella angustissima, Gliricidia sepium, Leucaena leucocephala, Lysiloma acapulcensis and Phaseolus vulgaris. The rhizobial strain 11B was used successfully as biofertilizer in agriculturally important legumes, forest trees and agroindustrial plants.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: A soilless pot experiment was conducted to investigate the effects of different growing substrates on vegetative and reproductive growth of bell pepper. The growing substrates consisted of: rice hull (100%), perlite (100%), coarse saw dust (100%), rice hull (75%)+zeolite (25%), perlite (75%)+zeolite (25%), saw dust (75%)+zeolite (25%), rice hull (50%)+perlite (50%), saw dust (50%)+perlite (50%), and rice hull (50%)+saw dust (50%) (by volume). Results showed that for all measured vegetative traits the highest and lowest amount was related to the plants grown in the perlite+zeolite and pure rice hull or saw dust, respectively. Results also showed that using perlite+zeolite as the media produced the highest fruit number and yield, while plant grown in the saw dust+zeolite produced the lowest fruit number. According to the results, adding zeolite and perlite to rice hull or saw dust in most cases, significantly increased the pepper yield compared with their pure treatments.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Pot experiments were conducted in the greenhouse on a calcareous soil to study the effect of nitrogen on the alleviation of boron toxicity in canola (Brassica napus L.). The treatments consisted of factorial combination of six levels of B (0, 2.5, 5, 10, 20, and 40 mg kg−1 as boric acid), and four levels of nitrogen (N) (0, 75, 150 and 300 mg kg−1 as urea) in a completely randomized design with three replicates. Boron (B) application significantly reduced the yield, whereas N addition alleviated the growth suppression effects caused by B supplements. Boron concentration increased with addition B. However, boron concentration in shoot declined with increasing N levels. Increasing N and B rates increased N concentration. Soil application of B increased proline concentration. However, the supply of N decreased it. Generally, application of B decreased potassium (K):B and calcium (Ca):B ratios, chlorophyll concentration, while N application increased them. It is concluded that N fertilization can be used effectively in controlling B toxicity in canola grown in B-affected soils.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: The method of fertilizer nitrogen (N) application can affect N uptake in tall fescue and therefore its yield and quality. Subsurface-banding (knife) of fertilizer maximizes fescue N uptake in the poorly-drained clay-pan soils of southeastern Kansas. This study was conducted to determine if knifed N results in greater N uptake than the conventional top-dress application method in a deep, well-drained soil of east-central Kansas. The experiment, conducted in a Smolan silty clay loam soil, was a split-plot with fertilizer nitrogen rates 0, 140 and 280 kg N ha−1 applied as urea-ammonium nitrate (UAN, 28% N), knifed or top-dressed. Soil inorganic N (ammonium (NH4)- and nitrate (NO3–N)) and N in roots and plant tops were measured at various times during the growing season. At final harvest, most of the knifed N (99.7%) was accounted for in plant tissue (roots and tops) and soil, with more than half of the knifed N remaining as soil inorganic N. With the top-dressed method, 27% was unaccounted for and presumed lost in gaseous form. Knifing fertilizer N in fescue fields of east-central Kansas will maximize the availability of N, reduce potential N losses, and increase forage quality.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Iron (Fe) is one of the essential micronutrient plays a crucial role in redox systems in cells and in various enzyme. The Fe-deficient plants have lower redox reaction and enzymatic activity. Intensive chemical fertilizer resulted in depletions of micronutrients especially Fe from the soil. To understand the dynamics of Fe under long-term fertilizer experiment the present study was initiated during 1972 at experimental farm of College of Agriculture CSK HPKV, Palampur in randomized block design with eleven treatments replicated thrice. The soil of the experimental area was silty loam, acidic in reaction and taxonomically classified as “Typic Hapludalfs.” Surface (0–20 cm) and subsurface (20–40 cm) soil samples collected after the harvest of maize (Kharif, 2008). The continuous use of chemical fertilizers and amendments for the last 36 years in maize-wheat system in an acid Alfisol brought out marked depletion in the pools of Fe as compared to buffer plots. All the pools of Fe were noticeably higher in farm yard manure (FYM) amended plots compared to zero-fertilized plots. Although, residual fraction was found to be the most dominant fraction but organically bound and exchangeable forms were found to play major role in the nutrient supply and crop productivity and nutrients' uptake. Highest productivity of maize (2008) and wheat (2008–09) was recorded under 100% nitrogen, phosphorus and potassium (NPK) + FYM treatment. FYM and lime treatments resulted in significantly higher uptake of all the nutrients by both the crops compared to other treatments. Organically bound fraction was found to have highest significant and positive correlation with yield and nutrient uptake of maize and wheat crops. Further, regression analysis studies too revealed that organic form was the most important pool contributing towards the variation in the above parameters. While, exchangeable and organically bound forms contributed significantly towards diethylene triamine pentaacetic acid (DTPA)-extractable Fe.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: More details have yet to be indicated on the interactions between arbuscular mycorrhizal (AM) fungi and phosphorus (P) chemical fertilization under field conditions. Accordingly, the objectives were to: 1) evaluate the combined effects of mycorrhizal fungi and chemical P fertilization on maize yield, yield components and nutrient uptake, and 2) indicate the optimum rate of P chemical fertilization (P1, P2, P3) with the use of mycorrhizal fungi (Glomus intraradices and G. mosseae). A factorial experiment using randomized complete blocks with three replicates, conducted at the Research Station of the Faculty of Agriculture, Islamic Azad University, Tabriz branch, Iran. Results indicated the significant effect of P, AM fungi and their interaction on most of the measured traits. Grain yield (7909.3 kg/ha), maize nutrient content of P (0.39%), zinc (Zn) (42.1 mg/kg), and iron (Fe) (68.3 mg/kg) and the colonization rate (47.5%) were all the highest by the interaction of G. intraradices × P2.
    No preview · Article · Feb 2016 · Journal of Plant Nutrition
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    ABSTRACT: Subsurface drip irrigation (SDI) has not only potential for water conservation, but also for improving nutrient use efficiency. Two nitrogen (N) application frequencies (every week versus every two weeks, via SDI) were compared in 2012 and 2013 on a Cozad silt loam in North Platte, Nebraska. The weekly treatment was fertigated every week for seven weeks in a row; the bi-weekly treatment was fertigated in weeks 1, 3, 5 and 7. Both treatments received the same total amount of N. There was a positive grain yield response to N application, but no advantage was found to a greater frequency of N application. Corn (Zea mays L.) grain yields and other indicators of corn growth and development (canopy-intercepted light, vegetation indices, indicators of chlorophyll content of corn plant leaves) were not affected by N application frequency.
    No preview · Article · Jan 2016 · Journal of Plant Nutrition
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    ABSTRACT: The optimum nitrogen requirement along with nitrogen uptake efficiency of finger millet (Eleusine coracana) for obtaining plants of a high phenotypic quality was studied in this research using hydroponic culture. 20 days old seedlings were transferred in nutrient solution containing all the essential macro and micro nutrients. Plants were subjected to three treatments of nitrate viz. 0.05mM, 0.1mM and 0.5mM by dissolving it in the nutrient solution. Plants grown in nutrient solution devoid of nitrate were treated as control. Plants grown in 0.5 mM nitrate conc. attained more height compared to other low nitrogen treatments (0.1 mM and 0.05 mM). Similarly plants of 0.5 mM nitrate treatments possessed more number of lateral roots, surface area of leaves, dry weight of plants and chlorophyll content compared to other low nitrogen treatments. Specific activity of nitrate reductase in plants treated with 0.5 mM concentration was found nearly 3 times higher than that of control plants; similarly specific activity of nitrite reductase in 0.5 mM treated plants was also high compared to other low nitrogen treatments followed by control. The results of the present investigation therefore indicate that nitrogen uptake efficiency as revealed by the activities of nitrate reductase and nitrite reductase was high in 0.5mM nitrate treatment. It also shows that 0.5 mM nitrate is optimum nitrogen concentration for the growth of finger millet in hydroponic condition.
    No preview · Article · Jan 2016 · Journal of Plant Nutrition
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    ABSTRACT: A two-year irrigated field study was conducted to determine the effects of plant growth promoting rhizobacteria (Bacillus subtilis OSU-142 and Bacillus mageterium M3) as biofertilizer, and in combination with a chemical nitrogen (N) fertilizer, on turf color and clipping yield, and interaction of biofertilizer and chemical N fertilizers in perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinacea L. Schreb.) and Kentucky bluegrass (Poa pratensis L.). The three turf species were tested separately in split-plot design experiments with three replications. Three fertilizer sources (ammonium nitrate only, ammonium nitrate + B. mageterium M3, and ammonium nitrate + B. subtilis OSU-142) were the main plots. Nitrogen applications with monthly applications of 0.0, 2.5, 5.0, 7.5 g N m−2 were the subplots.Color ratings and clipping yields increased with increasing chemical N fertilizers in all species. Both Bacillus species significantly increased color ratings and clipping yields in perennial ryegrass and tall fescue. However, there were no significant differences among the three fertilizer sources in color and clipping yield of Kentucky bluegrass. The experiments showed that there is a small but significant benefit from applying biofertilizers for turf color, and that N fertilization may be reduced in some turf species when biofertilization are made for this purpose.
    No preview · Article · Jan 2016 · Journal of Plant Nutrition
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    ABSTRACT: This study aims to explain the effects of silicon (Si) foliar application on gas exchange characteristics, photosynthetic pigments, membrane stability and leaf relative water content of different wheat cultivars in the field under drought stress conditions. The experiment was arranged as a split-split plot based on randomized complete block design with three replications. Irrigation regime (100%, 60%, and 40% F.C.), silicon (control and Si application) and wheat cultivars (Shiraz, Marvdasht, Chamran, and Sirvan) were considered as main, sub and sub-sub plots, respectively. This study was carried out at the Research Farm of the Collage of Agriculture, Shiraz University, Iran, during 2012–2013 growing season. The results showed that foliar application of silicon increased the leaf relative water content, photosynthesis pigments (chlorophyll a, b and total chl and carotenoids), chlorophyll stability index (CSI) and membrane stability index (MSI) in all wheat cultivars, especially in Sirvan and Chamran (drought tolerant cultivars), under both stress and non-stress conditions. However, more improvement was observed under drought stress as compared to the non-stress condition. In contrast, these parameters were decreased under drought stress. Si significantly decreased electrolyte leakage in all four cultivars under drought stress conditions. Furthermore, the intercellular carbon dioxide (CO2) concentration (Ci) was increased under drought stress. Si application decreased Ci especially under drought stress conditions. Net photosynthesis rate (A), transpiration rate (E) and stomatal conductance (gs) were significantly decreased under drought conditions. Under drought, Si applied plants showed significantly higher leaf photosynthesis rate, transpiration rate, and stomatal conductance. Intrinsic water use efficiency (WUEi) and carboxylation efficiency (CE) were decreased in all cultivars under drought stress. However, the silicon-applied plants had greater WUEi and CE under drought stress. The stomatal limitation was found to be higher in stressed plants compared to the control. Exogenously applied silicon also decreased stomatal limitation. Overall, application of Si was found beneficial for improving drought tolerance of wheat plants.
    No preview · Article · Jan 2016 · Journal of Plant Nutrition
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    ABSTRACT: One of the management operations in rangeland ecosystems for pastures restoration and improvement is fertilizer application. This study was designed to investigate the effect of fertilizer (50 kg/ha urea and ammonium phosphate fertilizers) on species diversity changes in a 100 ha experimental field of Salmechal Rangeland, Golestan Province. Plant species mean canopy cover was recorded using a 50 square meter sampling plot. Statistical analysis was performed using Excel 2007 and PAST software. Fertilizer application increased the number of species present in the region from 21 to 51 species and the plant families from 11 to 23. The forbs had the highest proportion (54.91%) and bushes and shrubs had the lowest percentage in the region. Fertilizer application increased plant diversity, uniformity and coverage of the grasses. There was a significant difference (P <0.01) between the grass and forbs coverage in before and after fertilizer treatments. The results showed that the biological and physiological growth periods of the annual and perennial plants were significantly different before and after fertilizer application (P <0.01). Also, their proportion in rangeland plant species composition significantly increased after fertilizer application.
    No preview · Article · Jan 2016 · Journal of Plant Nutrition