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Performance of Some Salt Tolerant Rice Genotypes in Coastal Region of Bangladesh Under Rainfed Condition in Aman 2013

A Zahan
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

MA Islam
Principal Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

MR Islam
Principal Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

B Karmakar
Senior Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

MHR Mukul
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

S Parveen
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

S Nahar
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

R Barua
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

MR Biswash
Scientific Officer
Adaptive Research Division Bangladesh Rice Research Institute Gazipur, Bangladesh

Abstract/ Executive Summary:

Salinity in soil and water is a major problem for rice production in coastal areas of Bangladesh. Although the problem is not so acute in T. Aman season due to the availability of rain water, still there are problems in coastal areas where tidal water frequently or occasionally carries saline water and increased the soil and water salinity affecting rice production. Therefore, it needs to develop salinity tolerant rice variety for the coastal region .With this view three advanced lines: IR78761-B-SATBI-28-3-24, IR78761-B-SATBI-28-3-26 and IR78761-B-SATB2-4-25-3 along with BRRI dhan53 and BRRI dhan54 as checks were tested at BRRI research farm (Gazipur), Khulna (Batiaghata and Dumuria), Bagerhat (Rampal), Patuakhali (Kalapara), Borguna (Amtoli), Satkhirah (Debhata and Shamnagar) during T. Aman, 2013. Uniform management practices were followed in all the locations. Among the tested entries, IR78761-B-SATBI-28-3-26 gave the highest grain yield in 5 locations out of eight, having average yield of 4.59 t/ha which was about 0.5 t/ha higher than the check varieties, BRRI dhan53 (3.95 t/ha) and BRRI dhan54 (4.16 t/ha). With an average yield of 4.45 t/ha, the 2nd highest yielder IR78761-B-SATBI-28-3-24 also gave the highest yield in two locations out of eight. Growth durations of the entries varied from 119 to 126 days whereas the highest yielder IR78761-B-SATBI-28-3-26 matured in the shortest period (119 days) followed by IR78761-B-SATBI-28-3-24 (121 days). The growth duration of check varieties, BRRI dhan53 and BRRI dhan54 were 124 and 126 days, respectively. It indicated that the above mentioned 1st and 2nd highest yielder lines were 5-7 days earlier than the check varieties.

Keywords: Grain yield, Salinity tolerance, Rainfed environment, Coastal region.

Location: Satkhira (Debhata and Shamnagar), Khulna (Batiaghata and Dumuria), Bagerhat (Rampal), Patuakhali Kalapara)and Barguna (Amtoli)

Start Date: 00-00-2013

End Date: 00-00-2013

Program Area: Variety and Species

Commodity: Rice

Objectives:

To evaluate the yield potential and adaptability of advanced breeding lines at farmers’ field in different agro-ecological conditions in Aman 2013.
To get feedback information about the advantages and disadvantages of the advanced lines from farmers and DAE personnel.

Methodology:

Three advanced lines IR78761-B-SATBI-28-3-24, IR78761-B-SATBI-28-3-26 and IR78761-B-SATB2-4-25-3 along with BRRI dhan53 and BRRI dhan54 as checks were tested at Khulna (Batiaghata and Dumuria), Satkhirah (Debhata and Shamnagar)Bagerhat (Rampal), Patuakhali (Kalapara), Barguna (Amtoli), during T. Aman, 2013. The unit plot size for each entry was 15 m² (5m x 3m). Seeding time was 20 July, 2013 and Seedling ages were varied from 25-35 days among the locations under varied circumstances. Seedlings were transplanted at 20 cm x 15 cm spacing. Fertilizers were applied at 90: 15: 50: 12: 3.6 kg NPKSZn/ha. Other standard management practices were followed uniformly to all entries. To assess the soil salinity of the experimental area, soil samples were collected and analysed from transplanting to maximum tillering stage in every 15 days interval. Days to flowering (50%) and maturity (80%) were recorded in time. Plant height was measured from 10 randomly selected plants from center and four corner of each plot excluding border area. At maturity, panicles were counted from 1 m² in each replication. From the center of each plot, 10 m² area was harvested for determination of grain yield at maturity. Grain yield was adjusted to 14% moisture content, and expressed in t ha^-1. Data gathered in the experiments were statistically analyzed using statistical software CropStat7.2 and means were compared with the least significant difference (LSD) test.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2013-14

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 100000

Total Budget (Tk.) : 100000

Achievement/Findings:

Considering grain yield, growth duration and farmers’ opinion the tested lines, IR78761-B-SATBI-28-3-24 and IR78761-B-SATBI-28-3-26 were recommended for Proposed Variety Trial (PVT) under rainfed salinity environment.

Knowledge Management: Report/Proceedings