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 Barley Cultivars/lines Against Salinity Under Laboratory Condition

Farida Begum
PSO
Agronomy Division, Gazipur

A.K.M. Alom
SO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

Fifteen hull-less barley cultivars/lines were tested under laboratory and artificial saline environment during the year 2006-07 to study the salt tolerance at germination, seedling stage and crop maturity stage. For salinity gradients 4, 8, 12 and 16 dS-m was used against distilled water (control) for germination and with Hoagland nutrient solution for seedling stages. The germination percentage of Barley decreased with the increase in salinity level. At 8 dS^-m, 93% seeds of the lines BHL-19 and BHL-08 were germinated . The minimum germination occurred in lines EMBSN-43-05 and BHL-03 at 8dS^-m.At 8dS^-m lines, BHL-09, BHL-10, BHL-18, BHL-19, and EMBSN-58-06 showed above 80% germination. At higher salinity (16dS^-m), 80% seeds germinated in case of BHL-19. Where as, only 7% seeds were germinated in line BHL-12. Yield/plant was also affected under salinity. At lower salinity only BHL-03, BHL-11 and EM-BSN 24-06 lines were affected and varied from 22 % to 44% decrease as compared to control. Lines BHL-10, BHL-12, BHL-15, and EM-BSN-58-06 have an stimulatory affect under lower salinity. The yield /plant did not vary much upto 6.30 dS^-m in lines BHL-15, BHL-18 and BHL-19. Yield per plant was not affected by higher salinity (12.46 dS^-m) in EMBSN-06 (2.06g).

Keywords: Evaluation, Barley cultivars, Salinity

Location: Joydebpur

Start Date: 00-00-2006

End Date: 00-00-2007

Program Area: Crop-Soil-Water Management

Commodity: Barley

Objectives:

To screen barley germplasm against salinity tolerance.

Methodology:

The experiment was conducted in plant physiology laboratory , Agronomy Division, to study germination and seedling growth during the period Nov 1 to Nov.30, 2006. The seeds of 15 hullless barley lines were used for this study. The seeds were collected from Plant Breeding Division; BARI. The germination was carried out in petridishes according to ISTA rules (1985). Four levels of salinity 0,8, 12 and 16 dS-m sodium chloride solution were used for germination test. For seedling growth, plants were grown in black plastic pots. The treatment solutions were prepared as follows: T_o = Tap water mixed with Hoagland Nutrient solution (0.4 dS-m). T₁, T₂, T₃, = Salt of sodium chloride added to Hoagland nutrient solution to prepare 8.0, 12.0 and 16.0 dS-m salinity levels respectively. Seedlings were grown for two weeks. Seedling length and dry weight were recorded. To observed yield variation, plants were grown in the crop season of 2006-07 in seed bed (2 m x 1 m).A polythene sheet was placed at a depth of 1.5 feet of the seed bed. Before sowing, the salinity levels were raised to 0.71 2.96 dS-m 6.30 dS-m and 12.46 dS-m by adding NaCl solution externally. This concentration was maintained by adding salt solution. Plant height and yield/plant was recorded after harvest.

Source of Information: Annual Report, Agronomy Division 2006-2007, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

Germination percentages, seedling length and seedling dry weight decreased at 16 dS-m. Crop yield was also affected under salinity. On the basis of germination, seedling growth, vigour index including yield/plant, lines BHL-10, BHL-15, BHL-18, BHL-19,EM BSN-06 and EM BSN-58-06 showed better performance. These lines can be selected for further investigation in the coastal saline areas.

Knowledge Management: Report/Proceedings