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Breeder Seed Production of Rice During 2008-2009

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

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

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

Md. Abubakar Siddique
Scientific Officer
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

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

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

Abstract/ Executive Summary:

Each variety was sown in seed bed from nucleus stock seed as intact panicles (panicle to row method) at BRRI, Gazipur and mass harvested seed (broadcast method) at BRRI regional stations and was transplanted using single seedling per hill. Roguing was done in every stage. Finally, after getting field and seed certificates from SCA, the produced seed were then treated as ‘breeder seed’ for distribution. In this way, a total of 102.23 tons of breeder seed of which 22.00 tons from 24 varieties in T. Aman and 80.23 tons from 10 varieties in Boro seasons were produced as breeder seed during 2008-09. On the other hand, a total of 18.09 tons of breeder seed from 14 varieties in T. Aman and 62.13 tons from 9 varieties in Boro and 1.47 tons from 10 varieties in Aus seasons were distributed during 2008-09 from previous years produced breeder seed. Besides, BRRI has been supplying breeder seed through the BRRI’s Rice Seed Network to the partner organizations for producing foundation seed. Moreover, now BADC produces foundation seed in one stage instead of previous two stages (foundation stage 1 and foundation stage 2). Therefore, BRRI will need to produce more quantity of breeder seed.

Keywords: Breeder seed, Rice, BRRI.

Location: BRRI Gazipur and 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: 01-07-2008

End Date: 30-06-2009

Program Area: Seed Technology

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 to increase rice production of the country.

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 records. 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 2008-2009, Genetic Resources and Seed Division, BRRI, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government	Budget:
2.	Budget:

Total Budget (Tk.) :

Achievement/Findings:

Rouging was done in every stage. After field inspection and laboratory test, a total of 102.23 tons of breeder seed of which 22.00 tons from 24 varieties in T. Aman and 80.23 tons from 10 varieties in Boro seasons were produced during 2008-09. Among the produced 102.23 tons breeder seed (BS), 13.86 tons BS were produced by GRS division Gazipur, 4.65 tons by Farm division Gazippur, 5.30 tons by BRRI R/S Rangpur, 8.25 tons by BRRI R/S Rajshahi, 15.80 tons by BRRI R/S Habiganj, 20.65 tons by BRRI R/S Comilla, 4.62 tons by BRRI R/S Bhanga, 5.20 tons by BRRI R/S Sonagazi, 5.35 tons by BRRI R/S Barisal and 18.55 tons by BRRI R/S Satkhira, respectively. On the other hand, a total of 18.09 tons of breeder seed from 14 varieties in T. Aman and 62.13 tons from 9 varieties in Boro and 1.47 tons from 10 varieties in Aus seasons were distributed during 2008-09 from previous years produced breeder seed.

Knowledge Management: Report/Proceedings