scholarly journals Influence of Some Rhizobium Strains on Chickpea: Nodulation, dry matter yield and Nitrogen uptake

1970 ◽  
Vol 27 (2) ◽  
pp. 61-64 ◽  
Author(s):  
ARM Solaiman ◽  
MS Talukder ◽  
MG Rabbani
Keyword(s):  
Nitrogen Fixation ◽  
N Uptake ◽  
Dry Weight ◽  
Growth Media ◽  
Standard Pattern ◽  
Rhizobium Inoculation ◽  
Positive Effects ◽  
Rhizobium Strains ◽  
Loam Soil ◽  
Positive Correlations

Four strains of Rhizobium were isolated from chickpea (Cicer arietinum) to characterize and observe the effectiveness on host legumes. In a laboratory study, Rhizobium strains showed standard pattern of reactions in respect of growth rate, colony characteristics and acid/alkali production on different growth media. The effect of Rhizobium inoculation on nodulation, growth and nitrogen fixation of chickpea was assessed by pot experiment on clay loam soil. Inoculation treatments comprised of Rhizobium strains CR1, CR2, CR3 and CR4. Rhizobium inoculation had significant positive effects on nodulation, growth and nitrogen fixation of the crop. Among the Rhizobium strains CR2 and CR3 performed better than CR1 and CR4 at 50% flowering stage of the crop. There were high positive correlations among the number and dry weight of nodules, N content and N uptake by shoot of chickpea. Keywords : Rhizobium; Nodulation; Growth; Nitrogen fixation; Chickpea DOI: http://dx.doi.org/10.3329/bjm.v27i2.9174 BJM 2010; 27(2): 61-64

scholarly journals Characterization of Some Rhizobium Isolates and Their Effectiveness on Pea

1970 ◽  
Vol 25 (1) ◽  
pp. 45-48
Author(s):  
M Solaiman Talukder ◽  
ARM Solaiman ◽  
Delowara Khanam ◽  
M Golam Rabbani
Keyword(s):  
Nitrogen Fixation ◽  
Dry Weight ◽  
Growth Media ◽  
Clay Loam ◽  
Flowering Stage ◽  
Clay Loam Soil ◽  
Cultural Properties ◽  
Loam Soil ◽  
Positive Correlations

Six isolates of Rhizobium were isolated from pea (Pisum sativum) to characterize their cultural properties and observe their effectiveness on host legume. In a laboratory study Rhizobium isolates showed characteristic pattern of reactions in respect of growth rate, colony characteristics and acid/alkali production on different growth media. The effect of inoculations of Rhizobium isolates on nodulation, growth and nitrogen fixation of pea were assessed by a pot experiment on a clay loam soil of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur. Inoculation treatments comprised of Rhizobium isolates R1, R2, R3, R4, R5 and R6. Among the Rhizobium isolates R3 and R5 of pea at 50% flowering stage had significant positive effective on nodulation, growth and nitrogen fixation of pea. There were high positive correlations among the number and dry weight of nodules, N content and uptake by shoot of pea. Keywords: Rhizobium; Pea; Nodulation; Growth; Nitrogen fixationDOI: http://dx.doi.org/10.3329/bjm.v25i1.4855 Bangladesh J Microbiol, Volume 25, Number 1, June 2008, pp 45-48

scholarly journals The Influence of Biochar and Solid Digestate on Rose-Scented Geranium (Pelargonium graveolens L’Hér.) Productivity and Essential Oil Quality

Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 260 ◽  
Author(s):  
Alessandro Calamai ◽  
Enrico Palchetti ◽  
Alberto Masoni ◽  
Lorenzo Marini ◽  
David Chiaramonti ◽  
...  
Keyword(s):  
Essential Oil ◽  
Climate Adaptation ◽  
Oil Quality ◽  
Dry Weight ◽  
Chemical Components ◽  
Growth Media ◽  
Anaerobic Digestate ◽  
Pelargonium Graveolens ◽  
Positive Effects ◽  
Leaf Chlorosis

In recent years, biochar has generated global interest in the areas of sustainable agriculture and climate adaptation. The main positive effects of biochar were observed to be the most remarkable when nutrient-rich feedstock was used as the initial pyrolysis material (i.e., anaerobic digestate). In this study, the influence of solid anaerobic digestate and biochar that was produced by the slow pyrolysis of solid digestate was evaluated by comparing the differences in the crop growth performances of Pelargonium graveolens. The experiment was conducted in a greenhouse while using three different growth media (i.e., solid digestate, biochar, and vermiculite). The results indicated that: (i) the pyrolysis of solid digestate caused a reduction in the bulk density (−52%) and an increase in the pH (+16%) and electrical conductivity (+9.5%) in the derived biochar; (ii) the best crop performances (number of leaves, number of total branches, and plant dry weight) were found using biochar, particularly for plant dry weight (+11.4%) and essential oil content (+9.4%); (iii) the essential oil quality was slightly affected by the growth media; however, the main chemical components were found within the acceptable range that was set by international standard trade; and, iv) biochar induced the presence of leaf chlorosis in Pelargonium graveolens.

scholarly journals Peningkatan Populasi, Pertumbuhan dan Serapan Nitrogen Tanaman Kedelai dengan Pemberian Azotobacter Penghasil Eksopolisakarida

2017 ◽  
Vol 45 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Reginawanti Hindersah ◽  
Neni Rostini ◽  
Arief Harsono ◽  
Dan Nuryani
Keyword(s):  
Nitrogen Uptake ◽  
Phase 1 ◽  
N Uptake ◽  
Dry Weight ◽  
Azotobacter Chroococcum ◽  
Growth Media ◽  
Two Phase ◽  
Randomized Design ◽  
Batch Fermenter ◽  
Liquid Inoculant

Nitrogen-fixing Azotobacter is widely used as biofertilizer in sustainable agriculture. The bacteria produce exopolysaccharide which might have a significant role in enhancing soybean nitrogen uptake and growth. The objective of this research was to obtain growth media of Exopolysaccharide–producing Azotobacter; and increase shoot and root growth as well as nitrogen uptake of soybean var. Anjasmoro at early vegetative phase following inoculation of Azotobacter chroococcum liquid. Research consist of two phase, 1) determination of organic-based media for A. chroococcum liquid inoculant production, and 2) pot experiment for application of liquid inoculant on soybean.  The first experiment was performed  in a series of  batch fermenter consisted of several organic media for 72 hours.  The second experiment was set in completely randomized design consisted of three density of liquid inoculant. The results verified that the best media which induced exopolysachharide production of A. chroococcum was 1% molase enriched with 0.1% NH4Cl. Liquid inoculant clearly enhanced population of Azotobacter in soybean rhizosphere, plant height, roots dry weight and N uptake of 21 day old soybean. This research implied that A. chroococcum might be used as biofertilizer at early growth of soybean. Keywords: Azotobacter chroococcum, biofertilizer, liquid inoculat

scholarly journals Effects of Tiba and Rhizobium Application on Growth, Yield and Biochemical Components of Brri Dhan-55 (Oryza Sativa L.)

2021 ◽  
Vol 50 (4) ◽  
pp. 1181-1189
Author(s):  
Nasrin Akhter Doel ◽  
Amm Golam Adam ◽  
Farhana Islam Khan ◽  
Hasna Hena Begum
Keyword(s):  
Protein Content ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Dry Weight ◽  
Grain Filling ◽  
Yield Attributes ◽  
Rhizobium Inoculation ◽  
Positive Effects ◽  
Biochemical Components ◽  
Net Assimilation

Effects of TIBA (10, 25, 50 ppm) and Rhizobium inoculation on growth, yield and biochemical components of BRRI Dhan-55 were investigated. Results showed that application of 10 ppm TIBA produced tallest plant, higher number of tillers and leaves per plant although statistically identical to control. The Rhizobium and TIBA treatments had mostly retarding effects on dry weight of leaves, shoots and roots where the lowest values was obtained from Rhizobium application. Leaf area ratio was positively affected by TIBA and Rhizobium treatments except due to 10 ppm where, significantly maximum value was noted from Rhizobium treatment. Specific leaf weight, relative growth rate and net assimilation rate were negatively responded following all treatments and the least value was also recorded from Rhizobium treatment in each cases. Yield attributes and yield of BRRI Dhan-55 were both positively and negatively influenced by Rhizobium and TIBA treatments. The highest harvest index was found in Rhizobium treated plants. The only increase in yield per plant due to 10 ppm TIBA was 2.48 % over the control but statistically similar to control. Results showed that Rhizobium inoculation had showed lowest value in protein content of leaves and seeds. Application of TIBA treatments had significant positive effects on protein content of leaves at flowering stage. However, the influence was rather negative at both tillering and grain filling stages. The 25 ppm TIBA resulted significantly maximum protein content of seeds followed by 10 ppm. Bangladesh J. Bot. 50(4): 1181-1189, 2021 (December)

scholarly journals Su Tutucu Polimer (SAP) Uygulamalarının Anadolu Sığla Ağacı (Liquidambar orientalis MİLL.) ve Biberiye (Rosmarinus officinalis L.) Türlerinde Bitki Gelişimi Üzerine Etkisi

2020 ◽  
Vol 8 (3) ◽  
pp. 721
Author(s):  
Hülya Akat
Keyword(s):  
Plant Growth ◽  
Growth Parameters ◽  
Dry Weight ◽  
Rosmarinus Officinalis ◽  
Growth Media ◽  
Super Absorbent Polymer ◽  
Positive Effects ◽  
Rosmarinus Officinalis L ◽  
Absorbent Polymer ◽  
Different Doses

Climate change caused by global warming and the increase in consumption due to rapid population growth are threatened its existence by causes decrease of water from natural resources. Since most of the usable water in the World is evaluated in agriculture, the water needs of plants need to be met in the most accurate and economical way. In this context, super absorbent polymer (SAP) application is one of the methods that provide efficient and economical usage of water. In this research, different doses of super absorbent polymer SAP A200 [0% (control), 0.2%, 0.4% ve 0.6% v/v] applications were applied in conventional (soil) and growth media conditions [peat, perlite and peat:perlite (1:1) v/v]. It was aimed to determine the effects of SAP A200 doses on plant growth of Anatolian Sweetgum Tree (Liquidambar orientalis Mill.) and Rosemary (Rosmarinus officinalis L.) species. The study was established with randomized plot design with 3 replications. In order to determine plant growth characteristics, plant height, stem diameter, root length, root thickness, fresh and dry weight values of roots and shoots were determined. For the two species used in the study, it was observed that all SAP doses had positive effects on plant growth parameters and the best results were obtained in 0.6 % SAP A200 application. It was determined that plant growth values were higher in all growth medias except soil and the best results were obtained in peat: perlite media.

scholarly journals Evaluation of the Symbiotic Efficiency of Rhizobium Strains Applied to Bituminaria bituminosa (L.) Stirton

2020 ◽  
pp. 45-55
Author(s):  
Omar Zennouhi ◽  
Abderrazak Rfaki ◽  
Mohamed El Mderssa ◽  
Jamal Ibijbijen ◽  
Laila Nassiri
Keyword(s):  
Nitrogen Fixation ◽  
Total Nitrogen ◽  
Biological Nitrogen Fixation ◽  
Dry Weight ◽  
Pastoral Systems ◽  
Plant Resources ◽  
Symbiotic Efficiency ◽  
Rhizobium Strains ◽  
Bituminaria Bituminosa ◽  
Biological Nitrogen

Aims: The study aimed to evaluate the effect of inoculation by different rhizobacteria on Bituminaria bituminosa plants grown under greenhouse conditions. Study Design: An experimental study. Place and Duration of Study: The study was carried out at the Department of Biology (Environment and valorization of microbial and plant resources Unit), Faculty of Sciences, Moulay Ismail University-Meknes, from November 2019 to February 2020. Methodology: Eleven species and/or isolates belonging to Rhizobium genus are used to inoculate B. bituminosa plants; similarly, fresh and dry crushed nodules previously collected from B. bituminosa shrubs are tested. The bacterial inoculation effects are evaluated through the estimation of inoculated plants’ fresh and dry shoots weight, root dry weight, total nitrogen, nodules number and fresh weight in comparison to non-inoculated plants. The infectivity and efficiency of the bacteria and the biological nitrogen fixation are also evaluated. Results: The results enable us to select the infective strains on the basis of their positive effect on growth and total nitrogen, in order to produce inoculum for B. bituminosa. Efficiency and biological nitrogen fixation are also very high compared to the control, especially with the B.b1 strain isolated from Bituminaria bituminosa and identified as Rhizobium tibeticum. The fresh nodules crushing is also very efficient. as inoculant. Conclusion: The use of symbiotic complex as Rhizobium tibeticum – Bituminaria bituminosa or an inoculum produced from fresh nodules are an eco-friendly alternative for the design of sylvo-pastoral systems ensuring increased soil fertility, fodder productivity and sustainable agroforestry.

Rhizobial inoculation improves seedling emergence, nutrient uptake and growth of cotton

2004 ◽  
Vol 44 (6) ◽  
pp. 617 ◽  
Author(s):  
F. Y. Hafeez ◽  
M. E. Safdar ◽  
A. U. Chaudhry ◽  
K. A. Malik
Keyword(s):  
Acetic Acid ◽  
Nutrient Uptake ◽  
N Uptake ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Growth Responses ◽  
Rhizobial Inoculation ◽  
Rhizobium Strains ◽  
Growth Promoting ◽  
Indole 3 Acetic Acid

Experiments were conducted to determine the growth promoting activities of various rhizobia in cotton (Gossypium hirsutum L.) under growth room conditions. Seeds of 4 cotton cultivars were inoculated with 4-indole-3-acetic acid producing selected (Brady) rhizobium strains and Azotobacter plant growth promoting rhizobacteria strains, included as a positive control. Growth responses to inoculation exhibited bacterial strain-cotton cultivar specificity and also included increase in rate of seedling emergence by 3–9%. Shoot dry weight, biomass and N uptake were increased by 48, 75 and 57%, respectively, due to inoculation with both the Rhizobium leguminosarum bv. trifolii E11 and Azotobacter sp. S8, whereas, strain E11 also increased root dry weight, root length and area by 248, 332 and 283%, respectively. K+ and Ca2+ uptake was also increased by 2–21% and 9–14%, respectively, due to rhizobial inoculation. The results also showed that (Brady) rhizobium strains promoted cotton growth through efficient nutrient uptake, which was mainly related to increased root growth due to the effect of IAA produced by these strains. However, growth promotion by Azotobacter sp. S8, in addition to 4-indole-3-acetic acid production, might also involve biological N2 fixation by this rhizobacterial strain at some stage during its growth.

Growth, Opium Gum Yield, and Photoperiod Response in Five Opium Poppy (Papaver somniferum L.) Cultivars

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 481d-481
Author(s):  
Z. Wang ◽  
M.C. Acock ◽  
B. Acock
Keyword(s):  
Flowering Time ◽  
Dry Matter ◽  
Dry Weight ◽  
Papaver Somniferum ◽  
Opium Poppy ◽  
Photoperiod Response ◽  
Asian Countries ◽  
Critical Photoperiod ◽  
Growth Chambers ◽  
Positive Correlations

To develop models for estimating growth, flowering time and gum yield of opium poppy, we compared variability among five cultivars (T, L, B1, B2, B3) from different latitudes in three Southeast Asian countries. Variability in the relationships between gum yield, capsule volume, and dry weight was also examined. Plants were grown in six growth chambers at a 11-, 12-, 13-, 14-, 15-, or 16-h photoperiod (PP) with a 12-h 25/20 °C thermoperiod. The main capsule was lanced for opium gum at 10, 13, and 16 d after flowering (DAF). Plants were harvested at 21 DAF and separated into leaves, stems, and capsules. Flowering time for B2 was affected least by PP and B1 the most. Flowering times for B3, L, and T were similar across the range of PPs. All cultivars showed a significant increase in flowering time from 14 to 13 h PP. Cultivars that flowered late (such as B1) had greater biomass than those that flowered earlier. However, cultivars that flowered earlier (such as L) had more dry matter partitioned into capsule than late-flowering ones. B2, B3, and L had the highest gum yields while B1 had the lowest. Positive correlations were found between gum dry weight and capsule volume (or dry weight) for T and L, but no correlations were observed between these variables for B1, B2, and B3. Our results indicated that plant dry weight varied as much as 77% and flowering time varied up to 40% even though the critical photoperiod was the same for all cultivars. The ratio of gum yield to capsule dry weight were significantly different between B1 and T.

scholarly journals Morphological and Physiological Root Traits and Their Relationship with Nitrogen Uptake in Wheat Varieties Released from 1915 to 2013

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1149
Author(s):  
Guglielmo Puccio ◽  
Rosolino Ingraffia ◽  
Dario Giambalvo ◽  
Gaetano Amato ◽  
Alfonso S. Frenda
Keyword(s):  
Durum Wheat ◽  
Root System ◽  
N Uptake ◽  
Specific Root Length ◽  
Root Traits ◽  
Wheat Breeding ◽  
N Availability ◽  
Wheat Varieties ◽  
Uptake Efficiency ◽  
Positive Effects

Identifying genotypes with a greater ability to absorb nitrogen (N) may be important to reducing N loss in the environment and improving the sustainability of agricultural systems. This study extends the knowledge of variability among wheat genotypes in terms of morphological or physiological root traits, N uptake under conditions of low soil N availability, and in the amount and rapidity of the use of N supplied with fertilizer. Nine genotypes of durum wheat were chosen for their different morpho-phenological characteristics and year of their release. The isotopic tracer 15N was used to measure the fertilizer N uptake efficiency. The results show that durum wheat breeding did not have univocal effects on the characteristics of the root system (weight, length, specific root length, etc.) or N uptake capacity. The differences in N uptake among the studied genotypes when grown in conditions of low N availability appear to be related more to differences in uptake efficiency per unit of weight and length of the root system than to differences in the morphological root traits. The differences among the genotypes in the speed and the ability to take advantage of the greater N availability, determined by N fertilization, appear to a certain extent to be related to the development of the root system and the photosynthesizing area. This study highlights some variability within the species in terms of the development, distribution, and efficiency of the root system, which suggests that there may be sufficient grounds for improving these traits with positive effects in terms of adaptability to difficult environments and resilience to climate change.

scholarly journals On the Health Benefits vs. Risks of Seaweeds and Their Constituents: The Curious Case of the Polymer Paradigm

Marine Drugs ◽  
2021 ◽  
Vol 19 (3) ◽  
pp. 164
Author(s):  
João Cotas ◽  
Diana Pacheco ◽  
Glacio Souza Araujo ◽  
Ana Valado ◽  
Alan T. Critchley ◽  
...  
Keyword(s):  
Brown Seaweed ◽  
Dry Weight ◽  
Sargassum Muticum ◽  
Human Nutrition ◽  
Health Impacts ◽  
Gracilaria Gracilis ◽  
Red Seaweeds ◽  
Positive Effects ◽  
Negative Impacts ◽  
Biomedical Potential

To exploit the nutraceutical and biomedical potential of selected seaweed-derived polymers in an economically viable way, it is necessary to analyze and understand their quality and yield fluctuations throughout the seasons. In this study, the seasonal polysaccharide yield and respective quality were evaluated in three selected seaweeds, namely the agarophyte Gracilaria gracilis, the carrageenophyte Calliblepharis jubata (both red seaweeds) and the alginophyte Sargassum muticum (brown seaweed). It was found that the agar synthesis of G. gracilis did not significantly differ with the seasons (27.04% seaweed dry weight (DW)). In contrast, the carrageenan content in C. jubata varied seasonally, being synthesized in higher concentrations during the summer (18.73% DW). Meanwhile, the alginate synthesis of S. muticum exhibited a higher concentration (36.88% DW) during the winter. Therefore, there is a need to assess the threshold at which seaweed-derived polymers may have positive effects or negative impacts on human nutrition. Furthermore, this study highlights the three polymers, along with their known thresholds, at which they can have positive and/or negative health impacts. Such knowledge is key to recognizing the paradigm governing their successful deployment and related beneficial applications in humans.

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