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

Evaluation of Rice (oryza Sativa L.) Genotypes at Germination and Early Seedling Stage for Their Tolerance to Salinity

M.M. Islam
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

M.A. Karim
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Laboratory of Agronomy Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur from July-June, 2009-2010 to evaluate the rice (Oryza sativa L.) genotypes for their tolerance to salinity. One hundred rice genotypes and two check cultivars (Pokkali as tolerant and IR29 as susceptible) were exposed to solution of Electrical Conductivity (EC) of 10, 15, and 20 dSm^-1 (5:1 molar concentration of NaCl and CaCl₂ solution) at germination and early seedling stage. Based on visual salt injury symptoms at 15 dSm^-1, 13 genotypes were found fairly tolerant to salinity. However, among the 13 genotypes, only Patnai23 showed higher germination index and seedling relative dry weight than the check salt tolerant Pokkali at 15 dSm^-1. Beside these, performance of Awned-1, Nonasail and Soloi was also well at this level. The genotypes Patnai23, Awned-1, Nonasail and Soloi showed the best performance under saline condition.

Keywords: Rice genotypes, Germination, Salinity, Tolerance

Location: Laboratory of Agronomy Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 01-07-2009

End Date: 30-06-2010

Program Area: Variety and Species

Non-commodity: Performance

Objectives:

To analyze genotypic variations in salt tolerance of rice at germination and early seedling stage of growth.

Methodology:

A laboratory experiment was conducted at the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh during July, 2009 to June, 2010. One hundred genotypes/landraces of rice (Oryza sativa L.) and two check cultivars Pokkali as tolerant and IR29 as susceptible were used in the experiment. Most of the genotypes were collected from Genetic Resources Unit of BSMRAU that includes land races and some HYV from Bangladesh, India and Thailand and rest of the genotypes were collect from the Bangladesh Rice Research Institute (BRRI).

Source of Information: The Agriculturists 8(2): 57-65 (2010) ISSN-1729-5211, A Scientific Journal of Krishi Foundation

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Based on visual salt injury symptoms, 13 genotypes were found tolerant at 15 dSm^-1 salinity level. However, among the 13 genotypes, only Patnai23 showed higher germination index and seedling relative dry weight than the check salt tolerant Pokkali at 15 dSm^-1. Beside these, performance of Awned-1, Nonasail and Soloi were also well at 15 dSm^-1 salinity level. So, the results of the experiments clearly indicated that most of the rice genotypes could not perform better under salinity level of 15 dSm^-1 at germination and early seedling stage.

Knowledge Management: Journal