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Breeder Seed Production of Rice During 2009-2010

Dr. Md. Khairul Bashar,
Chief Scientific Officer and Head,
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

Dr. Mohammad Khalequzzaman,
Principal Scientific Officer,
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

MS Ahmed,
Senior Scientific Officer,
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

ESM Harunur Rashid,
Scientific Officer,
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

A total of 124.59 tons of breeder seed (BS) of which 34.72 tons from 25 varieties in T. Aman and 89.87 tons from 10 varieties in Boro seasons were produced. Besides, BR11 was produced as the highest amount (13.85 tons), followed by BRRI dhan49 as 4.70, BR10 as 3.13 and BRRI dhan41 as 2.30 etc. during T. Aman and BRRI dhan28 as 43.34 tons, followed by BRRI dhan29 as 31.11, BRRI dhan50 as 4.39 and BRRI dhan47 as 4.08 tons in Boro seasons, respectively. On the other hand, a total of 84.18 tons breeder seed of which 20.56 tons from 18 varieties in T. Aman and 69.50 tons from 10 varieties in Boro and 4.12 tons from 9 varieties in Aus seasons were distributed during 2009-10. Besides, BRRI has been supplying breeder seed through the BRRI’s Rice Seed Network to the partner organizations for producing foundation seed.

Keywords: Breeder seed, Rice, BRRI.

Location: BRRI Gazipur and eight BRRI regional stations (R/S) viz. BRRI R/S Rangpur, BRRI R/S Rajshahi, BRRI R/S Habiganj, BRRI R/S Comilla, BRRI R/S Bhanga, BRRI R/S Sonagazi, BRRI R/S Barisal and BRRI R/S Satkhira.

Start Date: 01-07-2009

End Date: 30-06-2010

Program Area: Variety and Species

Commodity: Rice

Objectives:

To produce and supply of breeder seed of BRRI varieties as per indent of GO, NGOs and PS seed producing organizations/companies.

Methodology:

Each variety was sown from nucleus stock (NS) as intact panicles (panicle to row method) in BRRI, Gazipur and mass harvested seed (broadcast method) in BRRI regional stations. During transplanting in T. Aman and Boro seasons, each variety was grown using single seedling per hill. Fertilizers were applied @ 80:60:40 kg NPK/ha in T.Aman and @ 100:60:40 kg NPK/ha in Boro seasons along with Gypsum @100 kg/ha, and Zinc sulphate @10 kg/ha, respectively. Roguing was done in every stage with proper record keeping. At seedling stage, plants with different height and shape from standard (true to the type) were rogued. At maximum tillering stage, plants with different leaf sheath and leaf color, leaf shape and angle were rogued. At flowering stage, grain with different size, shape and color from the standard (true to the grain type of the produced variety) were rogued. Panicles from standard plants for each variety were harvested, dried and kept separately as nucleus stock for the next year. The panicles were kept as intact for growing breeder seed in BRRI Gazipur, while remaining panicles for regional stations were kept after threshing. The plots were mass harvested to preliminary consider as breeder seed after getting ‘field certificate’ from Seed Certification Agency (SCA). After harvest, the seed of each variety were threshed, dried, cleaned separately and stored in polythene coated gunny bag in the seed store room with controlled temperature (20°C with 60% RH) at BRRI, Gazipur. The harvested seed then finally offered as seed lot for getting the ‘seed certificate’ along with one green Breeder seed ‘tag’ per 10 kg bag from SCA. Finally, after getting field and seed certificates from SCA, the produced seed were then treated as ‘breeder seed’ for distributing to the GO, NGOs and PS seed producing organizations/companies as per indent before all rice seasons.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2009-2010, Genetic Resources and Seed Division, BRRI, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government	Budget:
2.	Budget:

Total Budget (Tk.) :

Achievement/Findings:

Roguing was done in every stage. After field inspection and laboratory test, a total of 124.59 tons of breeder seed (BS) of which 34.72 tons from 25 varieties in T. Aman and 89.87 tons from 10 varieties in Boro seasons were produced during 2009-10. Among the produced 124.59 tons BS, 12.44 tons BS were produced by GRS division Gazipur, 7.25 tons by Farm division Gazippur, 5.03 tons by BRRI R/S Rangpur, 12.97 tons by BRRI R/S Rajshahi, 15.60 tons by BRRI R/S Habiganj, 23.74 tons by BRRI R/S Comilla, 10.35 tons by BRRI R/S Bhanga, 9.71 tons by BRRI R/S Sonagazi, 7.16 tons by BRRI R/S Barisal and 20.34 tons by BRRI R/S Satkhira, respectively. On the other hand, a total of 84.18 tons breeder seed of which 20.56 tons from 18 varieties in T. Aman and 69.50 tons from 10 varieties in Boro and 4.12 tons from 9 varieties in Aus seasons were distributed during 2009-10 from previous years produced breeder seed stock.

Knowledge Management: Report/Proceedings