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

Effect of Different Saline Levels on Growth and Yield Attributes of Mutant Rice

Mohammad Zahidul Islam
Scientific Officer
Genetic Resources and Seed Division, BRRI Gazipur-1701

M A Baset Mia
Professor
Department of Crop Botany BSMRAU,Gazipur-1706

Md. Rafiqul Islam
Scientific Officer
Plant Breeding Division, BRRI Gazipur-1701

Anowara Akter
Scientific Officer
Hybrid Rice Division, BRRI Gazipur-1701

Abstract/ Executive Summary:

A pot experiment was conducted at the Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, to find out the growth and yield attributes of mutant rice under varied saline levels. Three rice genotypes viz. Q-31, Y-1281 and MR-219 were used as tests materials. The experiment was laid out in a Randomized Complete Block Design (RCBD) with four replications. Six salinity levels namely 15dSm^-1, 12 dSm^-1, 9 dSm^-1, 6 dSm^-1, 3dSm^-1 with a control were imposed in this experiment. The results indicated that all the growth and yield contributing characters of rice genotypes such plant height, number of tiller hill-1, effective tillers hill^-1, panicle length, filled grain panicle^-1, 1000-grain weight (g), grain yield hill-1(g) decreased with increased levels of salinity compared to control. Among the genotypes, MR-219 showed best performance in respect of yield and yield contributing characters up to 6 dSm^-1 and showed Y-1281 intermediate status. The genotypes Q-31 and Y-1281 showed its susceptibility to salinity stress. Thus MR-219 was found best salt tolerant genotype than others.

Keywords: Salinity stress, Mutant rice and salt tolerant

Location: BINA,Mymenshigh

Start Date: 01-01-2003

End Date: 01-12-2003

Program Area: Variety and Species

Commodity: Rice

Objectives:

The present experiment was conducted to identify the characters responsible for salinity of two mutants along with their mother.

Methodology:

A pot culture experiment was carried out in Bangladesh Institute of Nuclear Agriculture (BINA) during T. Aman season from July to November, 2003. Each pot contained 8.0 kg of dried soil, belongs to the Sonatola series of Grey Flood Plain under the Old Brahmaputra Agro-Ecological Zone (UNDP and FAO, 1988). The pH value, cation exchange capacity (CEC) and electrical conductivity (EC) of the soil were 6.44, 6.78meq/100 g soil and 0.6 dSm-1, respectively. Three rice genotypes Q-31, Y-1281 and MR-219 were used in the present in this experiment. Earthen pots of 24.5 cm top diameter, 14 cm bottom and 30 cm depth were used, which pot was filled with 8 kg sun-dried soil. A polythene lining was provided inside the pots. N, P, K and S applied at rate of 60-8-30-4 kg/ha in the form of Urea, TSP, MP and Gypsum according to Fertilizer Recommendation Guide (BARC, 1997). The following salinity treatments namely control, 3, 6, 9, 12 and 15 dSm^-1 were imposed in the experiment. Salinity treatments were given at 33 days after transplanting (DAT). EC was measured by the electrical conductivity bridge at room temperature and calculated to the standard temperature of 250 C. The pH and CEC soil were analyses following the methods of (Jackson, 1982) and (Black, 1965), respectively. Data were collected plant height (cm),number of tiller hill^-1, effective tillers hill^-1, panicle length (cm), filled grain panicle^-1, 1000-grain weight (g), grain weight hill^-1(g). The collected data were statistically analyzed by MSTAT-C package program develop by (Russel,1986).

Source of Information: J.Soil.Nature, 1(2):18-22 (July 2007)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results of the experiments clearly indicated that MR-219 showed best performance in respect to yield and yield contributing characters up to 6 dSm-1 and Y-1281 was intermediate. The genotypes Q-31 and Y-1281 showed its susceptibility to salinity stress. Q-31 showed the best performance over the varieties only plant height, but yield is very low. Thus MR-219 was found best salt tolerant genotype than others.

Knowledge Management: Journal