scholarly journals Respon Tanaman Kedelai (Glycine max (L.) Merril) terhadap Kombinasi Dosis PGPR (Plant Growth Promoting Rhizobacteria) dan Pupuk Phonska

2019 ◽  
Vol 7 (2) ◽  
pp. 64
Author(s):  
Syafrullah Salman

This research aims to find out effect of combination dosage of PGPR (Plant Growth Promoting Rhizobacteria) and phonska fertilizer toward the growth and the yield of soybean. This experiment was carried out in the field using a combination randomized block design (RBD) with five repeating.The treatments gave were 100% PGPR fertilizer (8 grams / liter) (A), 100% PGPR fertilizer (8 grams / liter) + 50% phonska fertilizer (0.78 grams) (B), 50% PGPR fertilizer (4 grams / liter) + 100% phonska fertilizer (1.56 gram) (C), 50% PGPR fertilizer (4 gram / liter) + 50% phonska fertilizer (0.78 gram) (D) and 100% phonska fertilizer (1, 56 grams) (E).The results showed that the treatment of 50% PGPR fertilizer (4 grams / liter) + phonska fertilizer 100% (1.56 grams) (C) gave a significant effect on the variable root length and leaf area index (LAI).The treatment of 100% phonska fertilizer (1.56 grams) (E) gave a significant effect on the variable seed weight per plot.

Akta Agrosia ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 33-37
Author(s):  
Fera Ariska ◽  
Marlin Marlin ◽  
Widodo Widodo

Bawang dayak is the important medicinal plant that need to be developed in cultivation techniques and production. The use of Plant Growth Promoting Rhizobacteria (PGPR) recently known to be effective to increase plant growth and yield. The research aimed to determine the optimal concentration and immersion time of PGPR on the growth and yield of bawang dayak. The experiment was arrange in complete randomized block design (RCBD) consisting of two factors. The first factor is the concentration of PGPR with 4 levels namely K0 = 0 g L-1, K1 = 5 g L-1, K2 = 10 g L-1 and K3 = 15 g L-1.  The second factor is immersion time of seed, namely P1 = 10 minutes, P2 = 20 minutes, P3 = 30 minutes and P4 = 40 minutes.  The results showed that there was an interaction between concentration and immersion time of PGPR giving effect to the number of leaves and the number of tillers. The immersion time of PGPR for 10 minutes with a concentration of 15 g L-1produced the highest number of leaves (58 leaves) and produced the highest number of tillers (27.67 tillers).  The treatment of PGPR concentration or immersion time of PGPR singly did not affect all observed variables of growth and yield of bawang dayak.


2021 ◽  
pp. 73-82
Author(s):  
Nadya Muliandari ◽  
Sudiarso Sudiarso ◽  
Titin Sumarni

Sugarcane (Saccharum officinarum L.) play an important role for sugar consumption in Indonesia. Problem found with sugar industry in Indonesia is the low productivity of sugarcane because of cultivation techniques caused by low soil fertility. This research aimed to determine effect of Plant Growth Promoting Rhizobacteria (PGPR) and vermicompost in increasing the growth of sugarcane. The research method used Randomized Block Design (RBD) consisted of 2 factors with a combination of 6 treatments. The first factor was A1 = without PGPR A2 = PGPR (10 ml.L-1) and the second factor was P1 = 3.5 t.ha-1 (50% vermicompost recommended fertilizer), P2 = 7.t ha-1 (100% vermicompost recommended fertilizer) and P3 = 10.5 t.ha-1 (150% vermicompost recommended fertilizer). Variables of this observation are plant height, number of tillers, number of stems, number of internodes, stem diameter, brix value and the yield of sugarcane. At the age 7 months after planting, the treatment of PGPR application at a vermicompost dose of 7 t.ha-1 (78.46 t.ha-1) was able to reduce the need for a vermicompost dose which was shown by a higher yield value compared to without PGPR application with vermicompost 3.5 t.ha-1 and vermicompost dose of 7 t.ha-1. A higher stem weight obtained in the PGPR treatment when compared to the treatment without PGPR. At a vermicompost 7 t.ha-1 and a vermicompost 10.5 t.ha-1 showed a higher stem weight compared to vermicompost 3.5 t.ha-1.


2021 ◽  
Vol 10 (1) ◽  
pp. 1-5
Author(s):  
Muhammad Yusril Hardiansyah ◽  
Yunus Musa ◽  
Abdul Mollah Jaya

The low productivity of cocoa plantations in Indonesia is partly due to the low quality of seeds, which refers to the impeded growth of cultivated cocoa nurseries. Seed is the initial growth of plants so the importance of giving special treatment to seeds will refer to better seed growth. Provision of Plant Growth Promoting Rhizobacteria (PGPR) microbes can produce indoleacetic acid (IAA) in plants to improve the quality of plant growth. This study aims to determine the effectiveness of the provision of Plant Growth Promoting Rhizobacteria bamboo rhizosphere against cocoa seed germination. The study was carried out in the farmer group garden, Gantarangkeke District, Bantaeng. This study was arranged in the form of a two-factor factorial design (F2F) in a randomized block design (RBD). The use of cocoa seed type as the first factor consisted of GTB (Gantarangkeke Bantaeng) local cocoa seed and MCC 01 cocoa seed and seed immersion treatment at PGPR rhizosphere bamboo concentration as the second factor consisting of 0% (control) concentration, 5%, 10 % and 15%. The results obtained indicate that administration of seeds with bamboo rhizosphere PGPR affects the germination (100.00%), the speed of seed growth (7.14%/etmal), as well as on abnormal seeds (10.00%). So that the provision of bamboo rhizosphere PGPR on cocoa seeds has an effective influence on seed germination and cocoa seedling development.


2020 ◽  
Vol 5 (1) ◽  
pp. 52-59
Author(s):  
Murtinah Murtinah ◽  
Eny Fuskhah ◽  
Adriani Darmawati

Penelitian ini bertujuan untuk mengkaji pengaruh penggunaan jenis pupuk kandang dan berbagai konsentrasi plant growth promoting rhizobacteria (PGPR) terhadap pertumbuhan dan produksi kedelai hitam (Glycine max L. Merill). Rancangan percobaan yang digunakan adalah rancangan acak lengkap pola faktorial. Faktor pertama adalah jenis pupuk kandang (tanpa pupuk, pupuk kandang ayam dan pupuk kandang kambing) dan faktor kedua adalah konsentrasi PGPR (PGPR komersial 5 ml/l air, 0 ml/l air, 5 ml/l air, 12,5 ml/l air, dan 20 ml/l air). Parameter pertumbuhan yang diamati meliputi tinggi tanaman dan jumlah daun. Parameter produksi yang diamati yaitu jumlah polong, berat polong dan bobot 100 biji. Data dianalisis dengan analisis ragam dan dilanjutkan dengan uji jarak berganda Duncan (Duncan’s Multiple Range Test). Hasil penelitian menunjukkan jenis pupuk kandang mampu meningkatkan tinggi tanaman, jumlah daun, jumlah polong, berat polong dan bobot 100 biji. Peningkatan konsentrasi PGPR hanya meningkatkan tinggi tanaman. Tidak menunjukkan adanya interaksi antara jenis pupuk kandang dan konsentrasi PGPR dalam meningkatkan pertumbuhan dan produksi kedelai hitam. Kata kunci : pupuk kandang ayam, pupuk kandang kambing, PGPR, kedelai hitam


2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Aghajan bahadori ◽  
Mohmmad Hossein GHarineh ◽  
Abdolmahdi Bakhshandeh ◽  
Naeimeh Enayatizamir ◽  
Alireza Shafeinia

This study was performed in order to investigate the effect of Plant growth-promoting rhizobacteria in reducing nitrogen and phosphorus Fertilizers Application in Sugarcane. The field experiment of this study was in the form of Split–block design with subplots in stips with four replications and three factors, including bacterial factor at four levels (control, Enterobacter cloaca, Pseudomonas putida and a combination of two types of bacteria), nitrogen factor at three levels (50, 75 and 100% recommended nitrogen for sugarcane (and phosphorus factor at three levels (50, 75 and 100% recommended phosphorus for sugarcane), was carried out in 2016-2017crop year in DC7-10 research farm of Dehkhoda sugarcane agro-industryin Ahvaz, in the southwest of Iran, on CP73-21 sugarcane variety. According to the analysis of variance tables, simple and interaction effects of the tested treatments, in the case of quantitative traits, including stalk yield, height, diameter, stalk density, percentage of nitrogen and phosphorus of leaves, chlorophyll content, LAI and HI in sugarcane were significant at the level of 1% probability. Comparison of means showed that the application of simultaneous application of growth-promoting bacteria along with the application of 75% recommended nitrogen and phosphorus for sugarcane, compared with the control treatment (application of 100% recommended nitrogen and phosphorus for sugarcane, without the use of bacteria), Was able to succeed in these traits 96.9%, 98.1%, 95.7%, 96.3%, 100.2% ,101.9%, 91.2% and 94.8%, respectively and Provide 21/9, 23/1, 20/7, 21/3, 25, 25, 16.2 and 19.8% of the nutrients of nitrogen and phosphorus for sugarcane, respectively, and is saved the same amount of nitrogen and phosphorus consumption for sugarcane. Also, regarding the sugarcane yield, the simultaneous application treatment of the tested bacteria along with the application of 100% recommended phosphorus and nitrogen for sugarcane, Compared to the control treatment


2017 ◽  
Vol 9 (3) ◽  
pp. 1422-1428 ◽  
Author(s):  
Zorawar Singh ◽  
Guriqbal Singh ◽  
Navneet Aggarwal

The field experiment was conducted during 2015-16 to study the effect of biofetilizer inoculation [control, Mesorhizobium only, Mesorhizobium + RB-1 (Pseudomonas argentinensis) and Mesorhizobium + RB-2 (Bacillus aryabhattai)] and four levels of phosphorus (0, 15, 20 and 25 kg P2O5 ha-1) on chickpea growth. RB-1 and RB-2 were the plant growth promoting rhizobacteria (PGPR). Biofertilizers could play a crucial role in reducing the dependence on chemical fertilizers by fixing the atmospheric nitrogen for crop and/or by increasing the availability of phosphorus and phytohormones to the crop. The 16 treatment combinations were laid out in Factorial Randomized Complete Block Design and replicated three times. In biofertilizer treatments, Mesorhizobium + RB-1 proved superior over control and sole inoculation of Mesorhizobium and at par with Mesorhizobium + RB-2 with respect to plant height (cm), number of branches (plant-1), shoot and root dry matter (kg ha-1) which were recorded at 30, 60 90, 120 days after sowing (DAS) and at harvest. Application of 25 kg P2O5 ha-1 gave the highest values of all the growth at-tributes viz. plant height (60 cm), number of primary (5.3) and secondary (27.2) branches per plant, shoot dry matter (4000 kg ha-1) and root dry matter (354 kg ha-1) which were significantly higher than that of 0 and 15 kg P2O5 ha-1 and at par with 20 kg P2O5 ha-1. Similar results were observed in case of crop growth rate (CGR) whereas relative growth rate (RGR) was not influenced significantly by various biofertilizer and phosphorus treatments. The dual inoc-ulation with PGPR strains along with phosphorus application have a supplementary effect on the growth of chickpea.


2021 ◽  
Vol 5 (1) ◽  
pp. 44-48
Author(s):  
Fajar Setyawan ◽  
M. Machfud Aldi ◽  
Abu Talkah

Nutrient availability is very significant in supporting plant growth. The low content of organic fertilizers and existing minerals appear as the primary limiting factors for soybean cultivation on acid soils. Therefore, the purpose of this research is to determine the effect of organic fertilizers and Plant Growth Promoting Rhizobacteria (PGPR) on plant growth and yield. A completely randomized block design (CRBD) factorial with three replications was employed, where the first variable involved the chicken and cow composts as well as Tithonia green fertilizer. Meanwhile, the second referred to PGPR at 0, 5, 10 and 15 ml.L<sup>-1</sup>. The results showed no interaction between the application of organic fertilizers and PGPR on soybean growth as well as the yield. Furthermore, the cow manure treatment of 10 t.ha<sup>-1</sup> reportedly increased the total dry weight and sample growth rate by 0.44 and 0.86%, respectively, compared to the chicken manure at similar composition. Also, 10 ml.L<sup>-1</sup> of PGPR was known to improve the pod quantity per plant and harvest index by 0.58 and 2.66% harvest index, correspondingly, than without PGPR.


2021 ◽  
Vol 226 ◽  
pp. 00031
Author(s):  
Muhammad Muhammad ◽  
Umi Isnatin ◽  
Peeyush Soni ◽  
Praptiningsih Gamawati Adinurani

This study aimed to find an effective combination of mycorrhiza, PGPR (Plant Growth Promoting Rhizobacteria), and inorganic fertilizers. Whereas the specific purpose was observed in effective mycorrhiza to increased chlorophyll content. This study used a completely randomized design (CRD) with three factors: the 1st factor is mycorrhiza application, the 2nd factor is PGPR and the 3rd factor is the application of nitrogen and phosphorus fertilizers. The data were analyzed with Analysis of Variance to determine the effect of the treatment being tried. Continued with the Least Significance Different test at a 95 % confidence level. The results indicated that the most effective application in increasing total chlorophyll content was (i) the ‟Commercial Mycorrhiza” without being combined with PGPR and fertilizer (TP.TR.MP:80 g mL–1). (ii) ‟Brawijaya Mycorrhiza” is combined with PGPR without fertilizer (TP.R.MB: 83 g mL–1). (iii) ‟Unida Mycorrhiza” without combined with PGPR and without fertilizer (TP.TR.MU: 80 g mL–1).


Author(s):  
Guriqbal Singh ◽  
Narinder Singh ◽  
Veena Khanna

The experiment was conducted to study the effect of four levels of phosphorus (0, 20, 30 and 40 kg P2O5 ha-1) and four biofertilizer treatments [uninoculated control, Rhizobium, plant growth promoting rhizobacteria (PGPR) and Rhizobium + PGPR] on growth and grain yield of lentil. The experiment was conducted in factorial randomized complete block design (RCBD) with three replications. The periodic data recorded at 30, 60, 90, 120 days after sowing (DAS) and at harvest showed that the highest growth in various parameters i.e. plant height, branches plant-1 and shoot dry matter accumulation was recorded with application of 40 kg P2O5 ha-1, however, it was at par with 30 P2O5 ha-1. Among the biofertilizers, Rhizobium + PGPR treatment gave maximum values of growth parameters like plant height, branches plant-1 and shoot dry matter accumulation at all the stages. At 30-60 DAS, the maximum crop growth rate (CGR) was recorded with the application of 40 kg P2O5 ha-1 (71.3 kg ha-1 day-1) and co-inoculation of Rhizobium and PGPR (72.0 kg ha-1 day-1). Application of 40 P2O5 ha-1 and use of coinoculation (Rhizobium + PGPR) provided the highest grain yields. The study highlights the importance of phosphorus application and biofertilizers inoculation for improving the growth and grain yield of lentil.


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