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Effect of Different Rhizobium Strains on the Growth Attributes of Black Gram

S. K. Nitu
Crop Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi-6205, Bangladesh

M. M. Ud-Deen*
Department of Crop Science & Technology, University of Rajshahi, Rajshahi

S. A. Haider
Crop Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi-6205, Bangladesh

Abstract/ Executive Summary:

Effects of three different Rhizobium strains on the growth attributes of two black gram varieties (Vigna mungo L. Hepper) revealed differential varietal response due to inoculation with two types of Rhizobium strains. Treatment T₅ showed higher values compared to the rest of the treatments. Different growth parameters such as RGR, LAR, RLGR, LAD, LAI, SLA and LWR indicated better results with the inoculation of nodule organism.

Keywords: Growth attributes, Black gram, Vigna mungo, Rhizobium strains

Location: Regional Pulse Research Station of Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna

Start Date: 00-09-2007

End Date: 00-12-2007

Program Area: Crop-Soil-Water Management

Commodity: Bio fertilizer

Objectives:

The present study examines if the introduced rhizobial strains can colonize, survive and promote the growth attributes of two black gram varieties.

Methodology:

The experiment was conducted in earthen pots under open air condition during the period from September to December, 2007. Two black gram (Vigna mungo L. Hepper) varieties viz. BARI MASH-I and BINA MASH-I procured from the Regional Pulse Research Station of Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna, were used. Three strains of Rhizobium viz. RVm 301, RVm 302 and RVm 303 procured from Soil Science Division, BARI, Joydebpur, Gazipur, were used for nodulation in rhizosphere of the two black gram varieties. Fresh soil collected from Botanical garden of Rajshahi University was made free from plant debris and ground into fine particles. Then the soil was mixed proportionately with compost. Before sowing the seeds, 500g triple super phosphate (TSP) and 250g muriate of potash (MP) were added to the soil an experimentation pots. The soil was sandy loam having a d were dried under sunlight in the pH value of 7.5. The experiment was laid out following a split-split plot design with three replications, where varieties and treatments were assigned as the main plot and sub plot, respectively. Surface area of each pot was 729.3 cm². Five different treatments were designated as T₁ (control i.e. with no biofertilizer treated seeds), T₂, T₃, T₄ and T₅. For treatments T₂, T₃ and T₄, seeds of black gram varieties were inoculated by slurry method with three strains of Rhizobium. For T₅ three strains of Rhizobium in a ratio of 1:1:1 were used for inoculation of seeds. The crop was kept free from weeds and no heavy irrigation was applied. Harvest interval method (classical technique) was followed to determine the growth attributes. Experimental data were analyzed statistically following conventional methods.

Source of Information: J. Life Earth Sci., Vols. 3-4: 7-11, 2009, ISSN 1990-4827

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In the present findings three different Rhizobium strains responded to different growth attributes of black gram. The combined dose (T₅) responded better compared to that of other treatments. All the growth parameters studied hare were found to show better results due to nodulation.

Knowledge Management: Journal