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Advanced Line Adaptive Research Trial (alart-rainfed), T. Aman, 2008

Dr Md Shafiqul Islam Mamin
Principal Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

MR Islam
Senior Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

Biswajit Karmakar
Senior Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

MF Islam
Senior Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

MH Kabir
Senior Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

HR Mukul
Scientific Officer
Adaptive Research Division, Bangladesh Rice Research Institute (BRRI) Joydevpur, Gazipur 1701, Bangladesh

Abstract/ Executive Summary:

This study was conducted at 9 locations of different districts with the objectives to evaluate the overall performance and adaptability of the advanced lines in farmer's field under alternate wetting and drying (AWD) condition. The result showed that the location x genotype interaction was significant at 0.05 level for grain yield, growth duration, panicles/m², filled grains/panicle, thousand grain weight (g), sterility% and plant height (cm). The test entries produced significantly different grain yields among the locations. However, BR7155-20-1-3 gave consistently better yield (3.85-4.62 t/ha) than other lines (3.30-3.70 t/ha) in all locations having average yield of 4.33 t/ha. Although other lines had short duration (117- 120 days) but their yields were low. BR7155-20-1-3 gave comparable yield with ck. Swarna (4.17 t/ha) having similar growth duration of 136-138 days. Gutiswarna produced significantly higher yield than BR7155-20-1-3 in 4 locations and similar yield in 6 locations. Plant height, field grains/panicle, thousand grain weight and sterility percent were similar in Gutiswarna and BR7155- 20-1-3.

Keywords: ALART, Rice, Grain yield, Growth duration, Rainfed, AWD

Location: Rajshahi (Tanor), Chapainawabgonj (Nachole), Natore (Sadar), Naogaon (Sadar), Dinajpur (Sadar), Jessore (Monirampur), Jhinaidhah (Sadar), Kushtia (Sadar) and Gazipur (Sripur).

Start Date: 01-07-2007

End Date: 30-06-2009

Program Area: Knowledge Management

Non-commodity: Rice, Adoption of technology

Objectives:

To evaluate the overall performance and adaptability of the advanced lines in farmer's field under alternate wetting and drying (AWD) condition.
To identify suitable advanced lines under in drought prone rainfed environment.
To get feedback about the advanced lines from the farmers and DAE personnel.

Methodology:

Six advanced lines: BR7155-20-1-3, BR7870-5* (Nils)-2-HR2, BR7870-5* (Nils)-2-HR8, BR7870- 5* (Nils)-7-HR1, BR7870-5* (Nils)-8-HR4, BR7870-5* (Nils)-10-HR8 along with Swarna and Gutiswarna as check were tested during wet season 2008. The trials were replicated thrice in each location. The unit plot size for each entry was 21.6 m²^. Seeding time was 8 July, 2008 and transplanting was done during 7-15 January, 2008. Seedling age varied from 30-38 days among locations under varied circumstances. Seedlings were transplanted at 20 x 15 cm spacing. Fertilizers were applied at 80: 40: 50: 10: 3 kg. N :P₂O₅ : K₂O: S: Zn/ha. All fertilizers except urea were applied as basal and urea was applied in 3 equal splits at 10-15, 25-30 and 45-50 (at PI stage) days after transplanting (DAT). Other standard management practices were followed as and when necessary. Appropriate measures were taken to control insect pests. Date of seeding, transplanting, flowering, maturity, plant height, lodging tolerance, pest and disease incidence, yield and yield components were recorded. Feedback from farmers and DAE personnel were also recorded. For yield estimation, 10 m² sample area from each plot was harvested at maturity and grain yields were adjusted to 14% moisture content.

Source of Information: Proceedings of BRRI Annual Internal Research Review, 2008-09, BRRI, Gazipur

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Swarna, Gutisarna and all advanced lines were infected by Sheath blight, Bacterial Leaf Blight diseases at different level of scores in 5 locations (Rajshahi, Chapainawabgonj, Naogaon, Dinajpu and Kushtia. All the advanced lines and two checks were found lodging tolerant in all the locations. All the entries were slightly infested by some insects like, stem borer, leaf folder, rice bug, green leaf hopper etc. but did not hamper the grain yield. Considering grain yield, disease reaction, farmers' reactions and other overall performances, none of the advanced lines was found suitable for consideration in proposed variety trial (PVT).

Knowledge Management: Report/Proceedings