scholarly journals THE EFFECT OF SALINITY TO ACTIVITY AND EFFECTIVITY PHOSPHATE SOLUBILIZING BACTERIA ON GROWTH AND PRODUCTION OF PADDY

2015 ◽  
Vol 2 (1) ◽  
pp. 609 ◽  
Author(s):  
Sri Widawati
Keyword(s):  
Bacillus Thuringiensis ◽  
Pseudomonas Fluorescens ◽  
Dry Weight ◽  
Phosphate Solubilizing Bacteria ◽  
Aerobacter Aerogenes ◽  
Randomized Design ◽  
Growth Activity ◽  
Growth Promoting ◽  
Completely Randomized Design ◽  
Phosphate Solubilizing

<p>This study aimed to determine the extent of phosphate solubilizing bacteria resistant to salinity and still be able to provide P for paddy plant. Research using completely randomized design with fertilizer treatments: <br />(A) Bakteri Aerobacter aerogenes + Azotobacter indicus (B) Bakteri Bacillus thuringiensis + B. megaterium <br />+ Pseudomonas fluorescens, (C) Bakteri Nocardia mesentrica + Spirillum lipoferum, (D) Mix bakteri Pseudomonas fluorescens, Bacillus thuringiensis, B. megaterium, Nocardia mesentrica, Aerobacter aerogenes, Spirillum lipoferum, dan Azotobacter indicus, and (E) control (whitout inoculant), and salinity (NaCl): (1) 0% (0 grams / 7 kg soil), (2) 0.1% (7 grams / 7 kg soil), (3) 0.2% (14 g / 7 kg soil), (4) 0.3% (21 g / 7 kg soil), and (5) 0 , 4% (28 g / 7 kg soil). Thirty and one hundred days after transplanting (DAT), and then measured plant height, number of tillers, number and dry weight of whole grain paddy. The results showed that 0,1 % (7 gram/7 kg tanah) salinity is very good for the growth, activity and effectiveness of phosphate solubilizing bacteria and production of paddy, but 0.4% salinity (28 gr/7kg land) is still safe on the growth, activity and effectiveness of phosphate solubilizing bacteria (Pseudomonas fluorescens, Bacillus thuringiensis, <br />B. megaterium, Nocardia mesentrica, Aerobacter aerogenes, spirillum lipoferum and Azotobacter indicus) as biofertilizer or growth promoting rhizobacteria on growth and production of paddy.</p><p><br /><strong>Keywords</strong>: Salinity, Phosphate solubilizing bacteria, Paddy</p>

scholarly journals Pertumbuhan Bibit Salak [Salacca zalacca (Gaertner) Voss] Pondoh yang Diinokulasi dengan Isolat Bakteri Potensial di Tanah Regosol Darmaga

2015 ◽  
Vol 6 (1) ◽  
pp. 37
Author(s):  
Fahrizal Hazra
Keyword(s):  
Plant Height ◽  
Dry Weight ◽  
Phosphate Solubilizing Bacteria ◽  
Cellulolytic Bacteria ◽  
Randomized Design ◽  
Inoculum Dose ◽  
Bacterial Inoculum ◽  
Completely Randomized Design ◽  
Phosphate Solubilizing ◽  
The Impact

<p>ABSTRACT</p><p>Snake fruit [Salacca zalacca (Gaertner) Voss] Pondoh is one of important fruits in Indonesia. The objective of the study was to determine the  influence of some selected potential microbes such as Phosphate Solubilizing Bacteria, Cellulolytic Bacteria, and  N2-fixing Bacteria (Azospirillum)  ongrowth of seedling  of  snake  fruit  Pondoh.  A  study  was  conducted  in  the nursery. The  experiment used  a  completely  randomized  design  with  treatments namely:  K0  (without  inoculum);  A1 (Azospirillum inoculum dose 5 ml), A2 (inoculum 25 ml); F1 (BPF inoculum dose 5 ml), F2 (dose 25 ml); S1; BPS inoculums (dose 5 ml), S2 (dose 25 ml); C1 (mixed bacterial inoculum A+F+S dose 5 ml), and C2 (A+F+S dose 25 ml). Plant height, P, C/N soil ratio, N were measured in 10 months for observing the impact of treatments. Results showed that the effect of inoculation of A2 to the amount of  N-total  (0.99%)  was significantly  different  compared  to  soil  with  K0;  and  not significantly different  from  the  amount  of  N-total  inoculation  A1,  F1,  F2, S1,  S2,  C1,  and  C2.  F2  increased availability of P (20.79 ppm) in the soil higher than  K0, A1, F1; and not significantly different from A2, S1, S2, C1, and C2.  K0 treatment gave  C/N ratio of soil significantly different from A1, A2, F1, F2, S1, S2, C1 and C2; BPS which showed activity in overhauling C-organic in the soil. Inoculation A2  and F2  increased  plant  height  15.48% and 9.31%  higher  than  the  control.  Inoculation  of  C2 differed  significantly  in improving  the  fresh  weight  compared  to  control;  and  not significantly different  from  A1,  A2,  F1,  F2,  S1,  S2,  and  C1  and  able  to increase  the  dry  weight  of  71.12% compared to the control.</p><p>Keywords: Azospirillum, Cellulolytic Bacteria, Phosphate Solubilizing Bacteria, Snake Fruit</p><p> </p><p>ABSTRAK</p><p>Salak Pondoh [Salacca zalacca (Gaertner) Voss] merupakan tanaman buah bernilai tinggi dan diminati  masyarakat.  Budidaya  salak  diawali  dengan pembibitan.  Penelitian  ini  bertujuan  menguji pengaruh  bakteri  potensial hasil  isolasi  dan  seleksi  dari  bakteri  pelarut  fosfat  (BPF), bakteri perombak  selulosa  (BPS),  dan  bakteri  pemfiksasi  N2  (Azospirillum) dalam  pertumbuhan  bibit tanaman  salak pondoh. Penelitian ini menggunakan rancangan acak lengkap satu faktor yang terdiri atas: K0 (tanpa inokulum/Kontrol);  A1  (inokulum  Azospirillum  5  ml), A2 (25  ml inokulum);  F1 (inokulum BPF dosis 5 ml), F2 (dosis 25 ml); S1 (inokulum BPS dosis 5  ml), S2 (dosis 25 ml); C1 (inokulum campuran A+F+S dosis 5 ml), dan C2 (dosis 25 ml).  Pengamatan dilakukan selama 10 minggu  sampai  bibit salak  Pondoh  memiliki dua daun.  Hasil penelitian menunjukkan  inokulasi A2dan S2  nyata  jumlah N-total (0.99%) di dalam tanah dibandingkan  dengan K0; tetapi  tidak berbeda nyata dibandingkan dengan perlakuan lain. Inokulasi F2 nyata meningkatkan P tersedia (20.79 ppm) di dalam tanah dibandingkan dengan K0, A1, F1; dan tidak berbeda nyata dengan A2, S1, S2, C1, dan C2. Induksi dengan seluruh isolat nyata terhadap C/N rasio tanah; yang menunjukkan adanya aktivitas BPS dalam  merombak C-organik  di dalam tanah.  Inokulasi  A2  dan  F2  mampu meningkatkan tinggi tanaman 9.31% dan 15.48% lebih  besar  dibandingkan kontrol. Inokulasi C2 nyata meningkatkan bobot basah bibit salak pondoh dibandingkan kontrol; tetapi tidak berbeda nyata dengan perlakuan lain serta mampu meningkatkan bobot kering 71.12% dibandingkan kontrol.</p><p>Kata kunci: Azospirillum, bakteri pelarut fosfat, bakteri perombak selulosa, Salak Pondoh</p>

scholarly journals Using Rhizosphere Phosphate Solubilizing Bacteria to Improve Barley (Hordeum vulgare) Plant Productivity

2021 ◽  
Vol 9 (8) ◽  
pp. 1619
Author(s):  
Ana Ibáñez ◽  
Alba Diez-Galán ◽  
Rebeca Cobos ◽  
Carla Calvo-Peña ◽  
Carlos Barreiro ◽  
...  
Keyword(s):  
Dry Weight ◽  
Crop Productivity ◽  
Barley Plant ◽  
Phosphate Solubilizing Bacteria ◽  
Microbial Inoculants ◽  
Total Phosphorous ◽  
Pot Trials ◽  
Growth Promoting ◽  
Phosphate Solubilizing ◽  
Vulgare Plant

On average less than 1% of the total phosphorous present in soils is available to plants, making phosphorous one of the most limiting macronutrients for crop productivity worldwide. The aim of this work was to isolate and select phosphate solubilizing bacteria (PSB) from the barley rhizosphere, which has other growth promoting traits and can increase crop productivity. A total of 104 different bacterial isolates were extracted from the barley plant rhizosphere. In this case, 64 strains were able to solubilize phosphate in agar plates. The 24 strains exhibiting the highest solubilizing index belonged to 16 different species, of which 7 isolates were discarded since they were identified as putative phytopathogens. The remaining nine strains were tested for their ability to solubilize phosphate in liquid medium and in pot trials performed in a greenhouse. Several of the isolated strains (Advenella mimigardefordensis, Bacillus cereus, Bacillus megaterium and Burkholderia fungorum) were able to significantly improve levels of assimilated phosphate, dry weight of ears and total starch accumulated on ears compared to non-inoculated plants. Since these strains were able to increase the growth and productivity of barley crops, they could be potentially used as microbial inoculants (biofertilizers).

Effect of planting date and density on calendula and peppermint herbs

2014 ◽  
Vol 1 (1) ◽  
pp. 25-29
Author(s):  
Rahim Mohammadian ◽  
Behnam Tahmasebpour ◽  
Peyvand Samimifar
Keyword(s):  
Mutual Effect ◽  
Dry Weight ◽  
Planting Date ◽  
Mass Reduction ◽  
Flower Number ◽  
Planting Dates ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Total Maximum

A factorial experiment was conducted with a completely randomized design to evaluate the effects of planting date and density on calendula herbs and peppermint. It had 3 replicates and was done in Khosroshahr research farm, Tabriz in 2006. Under studied factors were: 3 planting dates (10 May, 25 May and 10 June) in 4 densities (25, 35, 45, 55) of the plant in square meters. The results of variance a nalysis showed that there was 1% probability significant difference between the effects of planting date and bush density on the leave number, bush height and the bush dry weight. But the mutual effect of the plant date in mentioned traits density was insignificant. Regarding the traits mean comparison, the total maximum dry weight was about the 55 bush density in mm. Also, the bush high density in mm causes the bush growth and its mass reduction. When there is the density grain, the flower number will increase due to bush grain in surface unit. Overall, we can conclude that 10 June planting and 45 bush density in mm is the most suitable items and results in favored production with high essence for these crops.

Respon Akar Bibit Aren Genjah (Arenga pinnata) Di Pembibitan Pada Pemberian Dosis dan Interval Pupuk Organik Cair Nasa

2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar
Keyword(s):  
Organic Fertilizer ◽  
Dry Weight ◽  
Treatment Combination ◽  
Root Dry Weight ◽  
Randomized Design ◽  
Dose Study ◽  
Palm Sugar ◽  
Wet Weight ◽  
Completely Randomized Design ◽  
Leaf Dry Weight

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters. 

PERBANDINGAN DAYA HAMBAT BAKTERI Pseudomonas fluorescens ASAL TOMAT, KEDELAI, DAN JAGUNG TERHADAP Ralstonia solanacearum SECARA IN VITRO

Agrotek ◽  
2018 ◽  
Vol 5 (6) ◽  
Author(s):  
Aco Roni Kirihio ◽  
Ivonne Fitria Mariay ◽  
Cipta Meliala
Keyword(s):  
Pseudomonas Fluorescens ◽  
Filter Paper ◽  
Ralstonia Solanacearum ◽  
Randomized Design ◽  
Completely Randomized Design

<em>Inhibition of Pseudomonas fluorescens isolates the origin of tomato, soybean and corn against Ralstonia solanacearum tested using a completely randomized design (CRD).        P. fluorescens growth was measured at King's B medium by way of suspension antagonist put on filter paper of 0.5 cm in diameter. Inhibition of P. fluorescens is done by placing the antagonist suspension of 0.5 cm diameter filter paper on NA media that has been deployed R. solanacearum. The results showed that: (a) the growth of P. fluorescens origin of tomato, soybean and corn on King's B media were not significantly different, (b) the inhibition of P. fluorescens isolates against R. solanacearum not significantly different and, (c) the inhibition of isolates P. fluorescens origin of tomato, soybean and corn against R. solanacearum in vitro relatively strong</em>

scholarly journals Profiling of Plant Growth-Promoting Metabolites by Phosphate-Solubilizing Bacteria in Maize Rhizosphere

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1071
Author(s):  
Minchong Shen ◽  
Jiangang Li ◽  
Yuanhua Dong ◽  
Hong Liu ◽  
Junwei Peng ◽  
...  
Keyword(s):  
Plant Growth ◽  
Microbial Control ◽  
Agricultural Practices ◽  
Phosphate Solubilizing Bacteria ◽  
Mean Values ◽  
Plant Growth Promoting ◽  
Promote Plant Growth ◽  
Growth Promoting ◽  
Phosphate Solubilizing ◽  
Microbial Treatments

Microbial treatment has recently been attracting attention as a sustainable agricultural strategy addressing the current problems caused by unreasonable agricultural practices. However, the mechanism through which microbial inoculants promote plant growth is not well understood. In this study, two phosphate-solubilizing bacteria (PSB) were screened, and their growth-promoting abilities were explored. At day 7 (D7), the lengths of the root and sprout with three microbial treatments, M16, M44, and the combination of M16 and M44 (Com), were significantly greater than those with the non-microbial control, with mean values of 9.08 and 4.73, 7.15 and 4.83, and 13.98 and 5.68 cm, respectively. At day 14 (D14), M16, M44, and Com significantly increased not only the length of the root and sprout but also the underground and aboveground biomass. Differential metabolites were identified, and various amino acids, amino acid derivatives, and other plant growth-regulating molecules were significantly enhanced by the three microbial treatments. The profiling of key metabolites associated with plant growth in different microbial treatments showed consistent results with their performances in the germination experiment, which revealed the metabolic mechanism of plant growth-promoting processes mediated by screened PSB. This study provides a theoretical basis for the application of PSB in sustainable agriculture.

scholarly journals Perlakuan Berbagai Dosis Pupuk ZA Pertumbuhan Dan Hasil Tanaman Bayam Merah (Amaranthus gangeticus)

2021 ◽  
Vol 5 (2) ◽  
pp. 180
Author(s):  
Edy Kustiani ◽  
Mariyono Mariyono ◽  
Bela Citra Ayuningtyas
Keyword(s):  
Analysis Of Variance ◽  
Nutritional Value ◽  
Environmental Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Dose Treatment ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
The Ideal

Red spinach (Amaranthus gangeticus) is one of the most popular vegetables because of its high nutritional value and easy cultivation. Efforts to increase the production of red spinach are to fertilize to meet the needs of both macro and micronutrients. This study aimed to determine the effect of ZA fertilizer dose on the growth and yield of red spinach. The environmental design used was a non-factorial, completely randomized design with four replications. The factors tested were the dose of ZA fertilizer which consisted of 6 levels, namely: without ZA fertilizer (D0); 0.4 gr/polybag (D1); 0.8 gr/polybag (D2); 1.2 gr/polybag (D3); 1.6 gr/polybag (D4); 2 gr/polybag (D5). The data obtained were analyzed using analysis of variance, and if the results were significantly different, the BNT test was continued at a 5% level. The growth and yield of red spinach showed significant differences due to the ZA fertilizer dose treatment. The ZA fertilizer dose treatment of 1.2 g/polybag (D3) resulted in the highest plant height, the number of leaves, and leaf area of red spinach at 14, 21, and 28 days after planting. The ZA fertilizer dose treatment of 1.2 g/polybag (D3) resulted in the highest wet and dry weight plants of 49.15 and 4.38 grams, respectively. The ZA 1.2 gr/polybag dose is the ideal dose to increase the productivity of red spinach.Bayam merah (Amaranthus gangeticus) termasuk sayuran penting yang disukai masyarakat karena bernilai gizi tinggi dan mudah pembudidayaannya. Upaya peningkatan hasil bayam merah salah satunya dengan pemupukan untuk menambah nutrisi yang dibutuhkan tanaman. Tujuan dari penelitian ini adalah mempelajari respon pertumbuhan dan hasil tanaman bayam merah pada perlakuan dosis pupuk ZA. Pelaksanaan penelitian ini menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor yang diujikan adalah dosis pupuk ZA, terdiri 6 taraf, yaitu: tanpa pupuk ZA (D0); 0.4 gr/polybag (D1); 0.8 gr/polybag (D2); 1.2 gr/polybag (D3); 1.6 gr/polybag (D4); 2 gr /polybag (D5). Percobaan dilakukan dengan ulangan sebanyak 4 kali. Analisis data menggunakan analysis of variance (ANOVA), apabila berbeda nyata dilanjutkan uji Beda Nyata Terkecil (BNT) taraf 5%. Perlakuan dosis pupuk ZA berpengaruh nyata terhadap pertumbuhan dan hasil tanaman bayam merah. Perlakuan dosis pupuk ZA 1.2 gr/polybag (D3) menghasilkan tinggi, jumlah dan luas daun tanaman bayam merah tertinggi pada pengamatan umur 14, 21, dan 28 HST. Dosis pupuk ZA 1.2 gr/polybag (D3) juga menunjukkan berat basah dan berat kering tanaman tertinggi sebesar 49.15 dan 4.38 gram. Dosis ZA 1.2 gr/polybag merupakan dosis ideal untuk meningkatkan produktivitas tanaman bayam merah.

scholarly journals Isolation and Characterization of Phosphate-Solubilizing Bacteria from Mushroom Residues and their Effect on Tomato Plant Growth Promotion

2017 ◽  
Vol 66 (1) ◽  
pp. 57-65 ◽  
Author(s):  
Jian Zhang ◽  
Peng Cheng Wang ◽  
Ling Fang ◽  
Qi-An Zhang ◽  
Cong Sheng Yan ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Promotion ◽  
Wood Flour ◽  
Dry Weight ◽  
Rrna Gene ◽  
Plant Growth Promoting Bacteria ◽  
Phosphate Solubilizing Bacteria ◽  
Sequence Comparisons ◽  
Isolation And Characterization ◽  
Phosphate Solubilizing

Phosphorus is a major essential macronutrient for plant growth, and most of the phosphorus in soil remains in insoluble form. Highly efficient phosphate-solubilizing bacteria can be used to increase phosphorus in the plant rhizosphere. In this study, 13 isolates were obtained from waste mushroom residues, which were composed of cotton seed hulls, corn cob, biogas residues, and wood flour. NBRIP solid medium was used for isolation according to the dissolved phosphorus halo. Eight isolates produced indole acetic acid (61.5%), and six isolates produced siderophores (46.2%). Three highest phosphate-dissolving bacterial isolates, namely, M01, M04, and M11, were evaluated for their beneficial effects on the early growth of tomato plants (Solanum lycopersicum L. Wanza 15). Strains M01, M04, and M11 significantly increased the shoot dry weight by 30.5%, 32.6%, and 26.2%, and root dry weight by 27.1%, 33.1%, and 25.6%, respectively. Based on 16S rRNA gene sequence comparisons and phylogenetic positions, strains M01 and M04 belonged to the genus Acinetobacter, and strain M11 belonged to the genus Ochrobactrum. The findings suggest that waste mushroom residues are a potential resource of plant growth-promoting bacteria exhibiting satisfactory phosphate-solubilizing for sustainable agriculture.

Effect of Nanoparticle Phosphate Rock and Phosphate Solubilizing Fungi on Soil P-Potential, P-Retention, Organic Carbon and Base Saturation on Cilembu’s Inceptisols

2021 ◽  
Vol 1044 ◽  
pp. 143-150
Author(s):  
Muhammad Amir Solihin ◽  
Pujawati Suryatmana ◽  
Fajri Syahid Nurhakim ◽  
Rina Devnita ◽  
Mahfud Arifin
Keyword(s):  
Soil Properties ◽  
Crop Production ◽  
Phosphate Rock ◽  
Base Saturation ◽  
Organic P ◽  
Soil P ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Phosphate Solubilizing ◽  
P Retention

Intensive agricultural cultivation on Cilembu’s Inceptisols has become several soil properties problem for crop production. Nanoparticle phosphate rock and phosphate solubilizing fungi have ability to increase some soil properties content. The research aimed to observe the effect of nanoparticle phosphate rock and phosphate solubilizing fungi on soil P-potential, P-retention, C-organic and base saturation on Cilembu’s Inceptisols. The experiment arranged in Completely Randomized Design. The nanoparticle phosphate rock consisted of 4 levels. The phosphate solubilizing fungi consisted of 2 levels, and 2 replication. Soil P-Potential, P-Retention, C-organic, and Base Saturation were observed. The factors was observed after one month incubation on soil. Results showed that there were an interaction between nanoparticle phosphate rock and phosphate solubilizing fungi on the C-organic after one month incubation. Nanoparticle phosphate rock had affected on C-organic, P-potential and base saturation significantly, but had not affected on P-retention. Utilization of phosphate solubilizing fungi as soil ameliorant had affected significantly on P-potential and C-organic, but had not affected on P-retention and base saturation. Nanoparticle phosphate rock with a dose of 6% had the best effect on increase P-potential and base saturation

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