Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Salt Tolerant Bacterial Performance on Groundnut in Saline Stress Coastal Region of Bangladesh (2019–2020)

F. Alam
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M.F.A. Anik
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M. Rahman
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M.E. Ali
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

S. Akhter
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

Abstract/ Executive Summary:

A field experiment was carried out at On-Farm Research Division, Bangladesh Agricultural Research Institute, Cox’s Bazar and Noakhali during rabi season of 2019-2020 with the objective to study on nodulation capacity of salt tolerant rhizobial strains and their performance on growth and yield of groundnut under field condition. Seeds were shown on 23 December 2019 and 29 December 2019 in Cox’s Bazar and Noakhali, respectively. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. There were 12 treatments viz. T₁: Rhizobium GR1, T₂: Rhizobium GR2, T₃: Rhizobium GR3, T₄: Rhizobium GR4, T₅: Rhizobium GR5, T₆: Rhizobium GR6, T₇: Rhizobium GR7, T₈: Rhizobium GR8, T₉: Rhizobium GR9, T₁₀: Rhizobium GR10, T₁₁: Rhizobium BARI RAh 801 and T₁₂: Control. The tested crop was groundnut (cv. BARI Chinabadam-8). Peat based rhizobial inoculum containing 10⁸ cells g^-1 and inoculum was used at the rate of 1.5 kg ha^-1. Seeds were mixed thoroughly with inoculum (20:1 ratio) before sowing. Seeds were used at the rate of 75 kg ha^-1. Application of salt tolerance Rhizobium biofertilizer on groundnut, the inoculated plants exhibited better performance in nodule numbers, nodule weights, aboveground biomass, root biomass, and plant height than non-inoculated plants, indicating that all Rhizobium sp. effectively enhanced nodulation and growth parameters on groundnut plant than non-inoculated plants. In field trials, plants inoculated with Rhizobium sp. showed the higher pod yield, stover yield and seed yield than non-inoculated plants, revealing the positive impact of Rhizobium sp. on yield parameters of groundnut in saline area. Groundnut plants inoculated with Rhizobium sp.GR9 showed the highest nut yield of 2.82 t ha^-1 at Cox’s Bazar of Chattogram Coastal Plain and 2.84 t ha^-1 at Noakhali of Lower Meghna River Flood Plain AEZ’s than other strains inoculated and non-inoculated plants.

Keywords: Salt-tolerant, Performance, Growth, Yield, Groundnut

Location: On-Farm Research Division, Bangladesh Agricultural Research Institute, Cox’s Bazar and Noakhali

Start Date: 00-00-2019

End Date: 00-00-2020

Program Area: Crop-Soil-Water Management

Commodity: Soil salinity, Ground nut, Bio fertilizer

Objectives:

The objective to study on nodulation capacity of salt-tolerant rhizobial strains and their performance on growth and yield of groundnut under field condition.

Methodology:

The experiment was conducted at Subornochor, Noakhali on 23 December 2019 and at Joarianala, Cox’s Bazar on 29 December 2019, respectively. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The treatments were twelve Rhizobium isolates which were replicated into three blocks. There were 12 treatments of the experiment viz. T₁: Rhizobium GR1, T₂: Rhizobium GR2, T₃: Rhizobium GR3, T₄: Rhizobium GR4, T₅: Rhizobium GR5, T₆: Rhizobium GR6, T₇: Rhizobium GR7, T₈: Rhizobium GR8, T₉: Rhizobium GR9, T₁₀: Rhizobium GR10, T₁₁: Rhizobium BARI RAh 801 and T₁₂: Control. The carrier-based (peat) salt-tolerant Rhizobium inoculum was used in field experiments. The tested crop was groundnut (cv. BARI Groundnut-8). Peat-based rhizobial inoculum containing 10⁸ cells g^-1 inoculum was used at the rate of 1.5 kg ha^-1. Seeds were mixed thoroughly with inoculum (20:1 ratio) before sowing. Seeds were used at the rate of 75 kg ha^-1. Phosphorus, potassium, sulphur, zinc and boron @ P₄₂K₄₀S₄₀Zn₅B₁ kg ha^-1 were used in the form of TSP, MoP, gypsum, zinc sulphate and boric acid, respectively. All P, K, S, Zn, B were applied at the time of land preparation. All the intercultural operations such as irrigation, weeding, insect control, etc. were done as and when necessary. At the 50 percent flowering stage, nodules were collected by carefully uprooting five sample plants selected randomly from each unit plot. Nodules were separated from the roots, counted and then oven-dried and weighed. Data on yield and yield components were recorded at maturity. The groundnut was harvested on 20 May 2020 at Cox’s Bazar and 25 May 2020 at Noakhali, respectively. The initial soil samples at a depth of 0-15 cm from the experimental fields were collected and analyzed following standard methods. Soil pH was measured by a combined glass calomel electrode (Jackson, 1958). Organic carbon was determined by the wet oxidation method (Walkley and Black). Total N was determined by the modified Kjeldahl method. Calcium, K and Mg were determined by NH₄OAc extraction method. Copper, Fe, Mn and Zn were determined by DTPA extraction followed by AAS reading. Boron was determined by CaCl₂ extraction method. Phosphorus was determined by Bray and Kurtz method (Acid soils) and the Modified Olsen method (Neutral + Calcareous soils). Sulphur was determined by CaH₄(PO₄)₂.H₂O extraction followed by turbidimetric turbidity method with BaCl_2.All data were statistically analyzed using a RCBD design. Treatment effects on measured variables were tested by analysis of variance (ANOVA) and comparisons among treatment means were made using the least significant difference (LSD) multiple range test calculated at a 5% level of probability ( ≤ 0.05). Statistical procedures were carried out with the software program Statistix 10™.

Source of Information: Annual Research Report 2019–2020, Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Inoculation of Rhizobium biofertilizer on groundnut, the plants exhibited better performance in nodule numbers, nodule weights, aboveground biomass, root biomass, and plant height than non-inoculated plants, indicating that all Rhizobium sp. effectively enhanced nodulation and growth parameters on groundnut plant than non-inoculated groundnut in field native saline soil. Groundnut plants inoculated with Rhizobium sp. showed higher kernel yield, stover yield, and nut yield than non-inoculated plants, revealing the positive impact of Rhizobium sp. on yield parameters of groundnut. Groundnut plants inoculated with Rhizobium strains at Cox’s Bazar and Noakhali showed comparatively better performance of nut yield of groundnut with Rhizobium sp.GR9 treatment in both locations than other inoculated and non-inoculated plants. Therefore, Rhizobium sp. established an effective symbiotic association with groundnut and was responsible for increased growth and biomass, and improved yield of groundnut at both locations in field levels.

Knowledge Management: Report/Proceedings