scholarly journals Rhizobacteria inoculation in maize associated with nitrogen and zinc fertilization at sowing

2021 ◽  
Vol 25 (2) ◽  
pp. 96-100
Author(s):  
Andréia de L. Moreno ◽  
Jorge F. Kusdra ◽  
Angelita A. C. Picazevicz
Keyword(s):  
Bacillus Subtilis ◽  
Nitrogen Content ◽  
Plant Height ◽  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Dry Weight ◽  
Stem Diameter ◽  
Wide Range ◽  
Maize Plants ◽  
Total Dry Weight

ABSTRACT Rhizobacteria have a wide range of plant growth-promoting mechanisms of action, making them an alternative and/or complementary biological input for chemical fertilizers. In this respect, the present study aimed to assess growth and nitrogen accumulation in maize plants as a function of Azospirillum brasilense, Bacillus subtilis, zinc and nitrogen application at sowing. The experiment with the ‘AL Bandeirante’ maize variety was conducted in a greenhouse, using a completely randomized design. The treatments were arranged in a 2 x 2 x 2 x 2 factorial scheme, with six repetitions, considering the presence and absence of Azospirillum brasilense (5 g kg-1), Bacillus subtilis (5 mL kg-1) and zinc (20 g kg-1) in the seeds and addition or not of nitrogen (30 kg ha-1) to the soil. The variables assessed were plant height, stem diameter, leaf, stem, shoot, root and total dry weight, and shoot nitrogen content. Nitrogen fertilization in the absence of zinc increased shoot and total dry weight as well as shoot nitrogen content. Zinc applied to the seeds improved the total and stem dry weight of maize plants in the absence of Bacillus subtilis. Inoculation with Azospirillum brasilense and Bacillus subtilis increased the stem diameter and shoot nitrogen content of maize plants when nitrogen fertilization was not performed at sowing. There was no isolated or interaction effect between factors for plant height and root dry weight.

scholarly journals RESPONSE OF GAMAL (Gliricidia sepium) AND INDIGOFERA (Indigofera zollingeriana) FORAGE ON APPLICATION OF ANORGANIC AND ORGANIC FERTILIZER

Pastura ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 33
Author(s):  
Roni N.G.K. ◽  
S.A. Lindawati
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Plant Species ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Stem Diameter ◽  
Inorganic Fertilizer ◽  
Organic Fertilizers ◽  
Total Dry Weight ◽  
Leaf Dry Weight

The productivity of forage depends on the availability of nutrients in the soil where it is grown, so fertilization to replace harvested produce is absolutely necessary. This study aims to study the response of gamal and indigofera forage on application of inorganic and organic fertilizers. Research using a completely randomized design factorial pattern of two factors, the first factor is the type of plant (G = Gamal; I = Indigofera) and the second factor is the type of fertilizer (T = without Fertilizer; A = Inorganic fertilizer NPK; K = commercial organic fertilizer; O = conventional organic fertilizer; B = bioorganic fertilizer), repeated 4 times so that it consists of 40 experimental units. The variables observed were plant height, number of leaves, stem diameter, leaf dry weight, stem dry weight, total dry weight of leaves, ratio of dry weight of leaves/stems and leaf area per pot. The results showed that there was no interaction between plant species and types of fertilizer in influencing the response of gamal and indigofera plants. Plant species have a significant effect on stem diameter, while fertilizer types have a significant effect on plant height, leaf dry weight, total dry weight of leaves and leaf area per pot. Based on the results of the study it can be concluded that the response of gamal plants is similar to indigofera, all types of fertilizers can improve the response of plants and organic fertilizers produce the same crop response with inorganic fertilizers. Keywords: gamal, indigofera, inorganic fertilizer, organic fertilizer

scholarly journals The Vegetative Growth Response of Detam Soybean Varieties towards Bacillus subtilis and Trichoderma sp. Applications as Bio-fertilizer

2021 ◽  
Vol 232 ◽  
pp. 03024
Author(s):  
Agus Miftakhurrohmat ◽  
Sutarman
Keyword(s):  
Bacillus Subtilis ◽  
Leaf Area ◽  
Plant Height ◽  
Dry Weight ◽  
Stem Diameter ◽  
Observation Data ◽  
Root Dry Weight ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Soybean Plants

This study aims to determine the effect of bacterial isolates of Bacillus subtilis Bs-Sdj-01 and Trichoderma sp. Tc-Jro-02 isolates as biological fertilizer in plant growth until the end of the vegetative phase. The experiment was arranged factorially in a Completely Randomized Design (CRD) with each factor being the application of B. subtilis consisting of and without B. subtilis and the Trichoderma application consisting of with and without Trichoderma; the experiment was repeated four times. The observed variables were: plant height, stem diameter, number of leaves, leaf area, stover dry weight, root dry weight, and B. subtilis population at the end of the observation. Data were analyzed using with ANOVA and HSD tests at the 5% level. The combination of Trichoderma sp. and B. subtilis bacteria produce the highest increase in plant height, stem diameter, number of leaves, leaf area, stover dry weight, and root dry weight of soybean plants up to 35 days after planting and increase B. subtilis population grew from 1010 CFU.g-1 to be 4.43x1011 CFU.g-1. The presence of Trichoderma supports the activity of B. subtilis in the rhizosphere of the Detam variety soybean plantation.

scholarly journals Estimates of Genetic Components for Yield and Related Traits in Cocoyam

2012 ◽  
Vol 10 (2) ◽  
pp. 127-132 ◽  
Author(s):  
KK Paul ◽  
MA Bari
Keyword(s):  
Plant Height ◽  
Dry Weight ◽  
Leaf Length ◽  
Genetic Advance ◽  
Petiole Length ◽  
Genetic Components ◽  
Wide Range ◽  
High Heritability ◽  
Total Dry Weight ◽  
Peduncle Length

In the present investigation attempts were made to estimate genetic parameters for yield and its components in 315 genotypes of cocoyam collected from thirteen aroid growing districts. Plant height, petiole length, petiole breadth, leaf number, leaf length, leaf breadth, LAI, Inflorescence length, peduncle length, spathe length, spathe breadth, corm length, corm breadth, cormel number, cormel length, cormel breadth, corm weight, cormel weight, total fresh weight, total dry weight, yield per plant were taken in this study. Presence of significant differences together with wide ranges of variation indicates wide range of variability existed among the genotypes of cocoyam. Genotypic variances and coefficient of variation for most of the characters were remarkably higher than their corresponding environmental variances, which also indicate the existence of variation in genotypic level. Plant height, petiole length, leaf length, leaf breadth for cocoyam expressed high heritability with moderate to high genetic advance signalled heritable in nature. High heritability with high genetic advance in percentage of mean was also observed for plant height, petiole length, DOI: http://dx.doi.org/10.3329/agric.v10i2.13150 The Agriculturists 2012; 10(2) 127-132

Effectiveness of Azospirillum brasilense Inoculants to Wheat (Triticum aestivum) in the Micro-region of Curitibanos (SC)

2020 ◽  
pp. 49-55
Author(s):  
William Gilberto Balbinot ◽  
André Luis Gordechuk ◽  
Géssica Rogaleski Eutrópio ◽  
Cibele Medeiros ◽  
Glória Regina Botelho
Keyword(s):  
Plant Height ◽  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Dry Weight ◽  
N Fertilization ◽  
N Accumulation ◽  
Shoot Dry Weight ◽  
Plot Area ◽  
Shoot Weight ◽  
Full Dosage

Aims: This work aimed to evaluate the effectiveness of A. brasilense inoculants to the development of wheat at the southern part of Brazil. Study Design: The experimental design was randomized block with twelve treatments, containing two liquid inoculants with the A. brasilense strains Ab-V5 and Ab-V6, with or without nitrogen fertilization and five replicates. The plot area was 4m per 6m and thirty-two rows. The seeds inoculation was performed according to the manufacturer's recommendation, and manual sowing. The top-dressing N fertilization was Urea (Super N- 45%N) at 20 days after emergence (DAE), at 120 kg ha-1 (full dosage) or 60 kg ha-1 (half dosage). Place and Duration of Study: The experiment was performed in a farm in Curitibanos county in Santa Catarina state, Brazil. The experiment was carried out on July to November 2016. Methodology: At 45 DAE, it was performed flag leaves N content Tedesco, et al. [1]. At 115 DAE, it was performed dry shoot weight, plant height, ear sizes, grain N contents and grain yield. The results were submitted to variance analysis (ANOVA) and media compared by Scott-Knot's test at 5% of significance. Results: There was no statistical difference for shoot dry weight, plant height, ear size and yield. The N leaf content was greater with Ab-V5 inoculation and half N dosage (HC5 - 109% higher than the control). The N grain content was greater with the two strains (inoculant B) without, half and full N dosage (WC56 - 51%, HCB56 - 76% and CB56 - 65%, respectively). Conclusion: A. brasilense strains had the ability to increase wheat N accumulation with lower N fertilizing, suggesting their potential as growth inducers, emphasizing the importance of further studies to confirm and understand the mechanisms involved.

scholarly journals PERTUMBUHAN BIBIT KOPI LIBERIKA TUNGKAL KOMPOSIT PADA BERBAGAI MEDIA TANAM

2019 ◽  
Vol 4 (1) ◽  
pp. 19
Author(s):  
Yulistiati Nengsih ◽  
Yuza Defitri
Keyword(s):  
Plant Height ◽  
Rice Husk ◽  
Quality Index ◽  
Peat Soil ◽  
Dry Weight ◽  
Optimal Growth ◽  
Stem Diameter ◽  
River Sand ◽  
Root Dry Weight ◽  
Total Dry Weight

Good planting media is a medium that is able to provider water and nutrients is sufficient quantities for plant growth. This can be found on soils with good air conditioning, has a solid aggregate, good water holding ability and room for sufficient rooting. Proper use of media will provide optimal growth for the plants. This study aims to determine the best planting medium to support the growth of coffe seedling Liberika Tungkal Komposit. The research was conducted in the experimental garden Pijoan, University Batanghari Jambi. From March to May 2017. The research design in this experiment was planting  medium with complete randomized environmental design (RAL). The treatment is : M0 = plant medium 100% peat soil, M1 = plant medium 100% ultisol soil, M2 = planting medium 50% untisol soil + 50% rice husk charcoal, M3 = planting medium 50% ultisol soil + 50% cocopeat, M4 = planting medium 50% ultisol soil + 50% river sand, M5 = planting medium 50% peat soil + 50% rice husk charcoal, M6 = planting medium 50% peat soil + 50% cocopeat, M7 = planting medium 50% peat soil + 50% river sand. Parameter observed were plant height, stem diameter, root length, crown dry weight, root dry weight, root canopy ratio, total dry weight, quality index, initial pH media and final pH media. The result showed that the ultisol 100% ultisol garden media gave the heighes seed growth value based on single parameter ie plant height, stem diameter, root lenght, crown dry weight, root dry weight, root canopy ratio, total dry weight, and initial media pH and treatment integrated quality index that indicates that the seed is most ready to be moved to the field.Keywords: nurseries, plantations, coffee AbstrakMedia tanam yang baik adalah media yang mampu menyediakan air dan unsur hara dalam jumlah cukup bagi pertumbuhan tanaman. Hal ini dapat ditemukan pada tanah dengan tata udara yang baik, mempunyai agregat mantap, kemampuan menahan air yang baik dan ruang untuk perakaran yang cukup.Penggunaan media yang tepat akan memberikan pertumbuhan yang optimal bagi tanaman. Percobaan bertujuan untuk mengetahui media tanam yang paling baik untuk menunjang pertumbuhan bibit kopi Liberika Tungkal Komposit. Penelitian dilakukan di Kebun Percobaan Fakultas Pertanian Universitas Batanghari di Pijoan, Muaro Jambi. Percobaan dilaksanakan pada bulan Maret sampai Mei 2017. Percobaan menggunakan rancangan lingkungan acak lengkap dan rancangan perlakuan media tanam (M) sebagai berikut: M0 = 100% gambut, M1= 100% tanah jenis ultisol, M2= 50% tanah jenis ultisol + 50% arang sekam padi, M3= 50% tanah jenis ultisol + 50% cocopeat, M4 = 50% tanah jenis ultisol + 50% pasir sungai, M5= 50% tanah gambut + 50% arang sekam padi, M6= 50% tanah gambut + 50% cocopeat, M7= 50% tanah gambut + 50% pasir sungai. Parameter yang diamati adalah pH awal dan pH akhir media, tinggi tanaman, diameter batang, panjang akar, bobot kering tajuk, bobot kering akar, nisbah tajuk akar, bobot kering total dan indek kualitas. Hasil percobaan menunjukkan media tanam 100% tanah jenis ultisol  menghasilkan pertumbuhan bibit tertinggi berdasarkan parameter tunggal yaitu tinggi tanaman, diameter batang, panjang akar, bobot kering tajuk, bobot kering akar, nisbah tajuk akar, bobot kering total dan parameter terintegrasi yaitu indeks kualitas.Kata kunci:  pembibitan, perkebunan, kopi

scholarly journals Use of Azospirillum brasilense and nitrogenate fertilization in maize crop

2020 ◽  
Vol 13 (8) ◽  
pp. 43
Author(s):  
C. H. N. Pinheiro ◽  
V. M. M. Lima ◽  
M. M. Stival ◽  
V. L. Silva
Keyword(s):  
Plant Height ◽  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Sustainable Production ◽  
Stem Diameter ◽  
Maize Crop ◽  
Randomized Block Design

Corn is highly demanding in nitrogen, but this is an onerous element, and it is necessary to seek greater efficiency in its use in this crop. This research aimed to analyze the development of this crop using nitrogen fertilization and inoculation of Azospirillum brasilense. The experiment was conducted in a randomized block design in a 2 x 5 factorial scheme, the first factor being the inoculation of Azospirillum and the second factor the nitrogen doses (0, 50, 100, 150 and 200 kg of N.ha-1) . The interaction between the inoculant and the nitrogen fertilization showed significance in the variables plant height and stem diameter. Correct nitrogen administration is essential for maize, and application in conjunction with the inoculation of Azospirillum significantly increases yields and may be an alternative to more environmentally and economically sustainable production.

scholarly journals Screening of jute and kenaf varieties for salinity tolerance

2018 ◽  
Vol 6 (2) ◽  
pp. 214
Author(s):  
Md. Isfatuzzaman Bhuyan ◽  
K M. Mehadi Hassan ◽  
Nowrose Jahan Lipi ◽  
Md Rafiq Uddin ◽  
Md Monirul Islam ◽  
...  
Keyword(s):  
Plant Height ◽  
Salinity Stress ◽  
Salinity Tolerance ◽  
Dry Weight ◽  
Germination Inhibition ◽  
Germination Test ◽  
Salinity Levels ◽  
Total Plant ◽  
Number Of Leaves ◽  
Total Dry Weight

A study was conducted in the Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh from April to August 2012 to examine the salinity tolerance of eight jute varieties (CVE-3, C-83, CVL-1, BJC-7370, O-795, O-9897, OM-1, O-72) and two kenaf varieties (HC-95 and HC-2). Initially germination of these varieties were evaluated under six salinity levels viz. 0mM, 20mM, 40mM, 60mM, 80mM, and 100mM NaCl in the seed laboratory of the Department of Agronomy. Afterwards, all the varieties was grown in pots in the net house under four salinity levels viz. 0mM, 25mM, 50mM, and 75mM. The results from the germination study revealed that under control condition (0mM NaCl) all the jute varieties showed germination more than 80% both at 7 and at 14 days after seed sowing, whereas kenaf varieties had germination a little less than 80%. Among the jute varieties, O-72 showed the highest germination (92%), which was statistically similar with those of OM-1(91%), O-795 (90%), and C-83(87%). Salinity stress decreased germination drastically in all of the jute and kenaf varieties. A salinity level of 100mM caused the highest germination inhibition (74.70%) in jute variety CVL-1, which was very close to those of BJC-7370 and O-72. On the other hand, the lowest germination inhibition (51.11%) was recorded in jute variety O-795. The results of the pot trail showed that the plant characters of jute and kenaf varieties were affected significantly by salinity stress. All the varieties produced their respective plant height, number of leaves per plant, and plant dry weight under control condition (no salinity). Among these varieties, CVE-3 produced the highest plant height (145.2cm), and total dry weight (22.55g), whereas O-72 produced the highest number of leaves per plant (24.67). All these plant characters decreased sharply due to salinity stress irrespective of variety. However, the rate of decrease of plant characters occurred differentially in the jute and kenaf varieties. The highest rate of decrease in number of leaves (74.22%) was found from the variety CVE-3, whereas the lowest one was recorded from the variety HC-2 (51.68%). Salinity stress caused the highest decrease in total plant dry weight (73.68%) in the variety CVL-1 and plant height (73.64%) also in the variety CVL-1. On the contrary, the lowest decrease in plant dry weight (50.99%) was found in the variety O-9897 and plant height also in variety O-9897 (50.88%). Based on the results from germination test and pot trail, it can be inferred that jute variety O-9897 appeared to be the most salt tolerant followed by O-795, HC-2, HC-95, CVE-3, O-72, C-83, BJC-7370, OM-1, and CVL-1.    

REDUCTION OF SPINDLINESSS OF TOMATO TRANSPLANTS GROWN AT HIGH DENSITIES

1985 ◽  
Vol 65 (3) ◽  
pp. 797-801 ◽  
Author(s):  
A. LIPTAY
Keyword(s):  
Plant Height ◽  
Growth Parameters ◽  
Dry Weight ◽  
Diameter Ratio ◽  
Stem Diameter ◽  
Fresh Weight ◽  
Air Movement ◽  
Weight One ◽  
Tomato Growth ◽  
Reduction Effect

The spindliness of tomato transplants grown at high densities in a greenhouse was reduced by an ethephon spray or intermittent vibration of the seedlings with air movement. Either treatment reduced the following growth parameters: plant height, height-to-stem-diameter ratio, stem diameter, fresh weight, and dry weight. One ethephon spray alone reduced the height and improved the stalkiness of the seedling. Vibration of the plants with air movement had an even greater height-reduction effect while a combination of the two treatments was the most effective in producing the stalkiest transplants.Key words: Lycopersicon esculentum, plant height, stem diameter, tomato, growth regulator

Carbon and nitrogen content of Laminaria saccharina in the eastern English Channel: biometrics and seasonal variations

2001 ◽  
Vol 81 (5) ◽  
pp. 727-734 ◽  
Author(s):  
F. Gevaert ◽  
D. Davoult ◽  
A. Creach ◽  
R. Kling ◽  
M.-A. Janquin ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Seasonal Pattern ◽  
Dry Weight ◽  
Early Spring ◽  
English Channel ◽  
Laminaria Saccharina ◽  
Carbon And Nitrogen ◽  
Clear Seasonal Pattern ◽  
Total Dry Weight ◽  
Carbon And Nitrogen Content

Fresh weight (FW), dry weight (DW), carbon and nitrogen content were measured for specimens of Laminaria saccharina (Heterokontophyta: Phaeophyceae) sampled in the eastern English Channel in order to conduct a biometrical study. The aim was to relate carbon and nitrogen masses of the algae to a simple and rapid morphological measurement of the total length of the sporophyte. These relationships were highly significant and appeared very useful to express the standing biomass of L. saccharina in terms of carbon or nitrogen and then to consider dynamic processes such as primary production. Variations in tissue carbon (C) and nitrogen (N) were examined over a complete seasonal cycle. Average carbon and nitrogen content ranged from 23·9 to 31·4% and 2·23 to 3·42% of the total dry weight, respectively. Variations in C/N ratio showed a clear seasonal pattern with an increase in the early spring corresponding to strong photosynthesis and growth.

scholarly journals Magnesium Sources and Inoculation with Azospirillum brasilense in the Initial Development of Maize

2019 ◽  
Vol 11 (7) ◽  
pp. 170
Author(s):  
Roberto Cecatto Júnior ◽  
Vandeir Francisco Guimarães ◽  
Lucas Guilherme Bulegon ◽  
Anderson Daniel Suss ◽  
Adriano Mitio Inigaki ◽  
...  
Keyword(s):  
Azospirillum Brasilense ◽  
Dry Mass ◽  
Stem Diameter ◽  
Mineral Fertilization ◽  
Initial Development ◽  
Maize Seeds ◽  
Seed Inoculation ◽  
Leaf Dry Mass ◽  
Maize Plants ◽  
And Control

The aim was to evaluate the initial development of maize plants when submitted to mineral fertilization with magnesium sources in the presence or absence of seed inoculation with Azospirillum brasilense. To do so, was conducted an experiment in greenhouse. In the essay was adopted a randomized blocks design, in a factorial scheme 3 × 2, represented by the magnesium sources: magnesium sulfate (MgSO4), magnesium oxide (MgO) and control without Mg fertilization, in the presence or absence of inoculation with A. brasilense. The Mg sources were supplied with a dose of 30 kg ha-1, being homogenized in the substrate before sowing the crop. The analysis were carried out in the V4 stage, evaluating: basal stem diameter (BSD); relative chlorophyll content (SPAD index), leaf dry mass (LDM), stem + sheath blade dry mass (SSDM) and root dry mass (RDM). No differences were observed for the factors interaction and for the Mg sources. When considered the seed inoculation there was increases of 7.1%; 6.61%; 19.23%; 28.32%; and 15.17 %, for basal stem diameter, SPAD index, leaf dry mass, stem + sheath blade dry mass and roots, respectively. The inoculation of maize seeds with A. brasilense increases the initial development of maize plants and the SPAD index in greenhouse conditions in the V4, while the fertilization with the magnesium sources do not interfere in the maize development.

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