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Breeder Seed Production of Rice to Increase Quality of Rice Production

Dr. Mohammad Khalequzzaman,
Principal 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.

M. H. K. Baktiar,
Scientific Officer,
Genetic Resources and Seed Division, BRRI, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

Roguing was done in every variety at each crop stage in the field. After field inspection and laboratory test, a total of 115.90 tons of breeder seed (BS) were produced during 2011-12. Among the production, 16.89 tons BS were produced by GRS division Gazipur, 7.28 tons by Farm division Gazippur, 4.25 tons by BRRI R/S Rangpur, 19.89 tons by BRRI R/S Rajshahi, 10.17 tons by BRRI R/S Habiganj, 12.97 tons by BRRI R/S Comilla, 13.14 tons by BRRI R/S Bhanga, 7.41 tons by BRRI R/S Sonagazi, 15.44 tons by BRRI R/S Barisal and 8.46 tons by BRRI R/S Satkhira, respectively. Besides, the highest amount of BS (9.24 tons) was produced from BR11 during T. Aman and 47.36 tons from BRRI dhan28 during Boro seasons, respectively. On the other hand, a total of 102.01 tons breeder seed were distributed from previous years stock during 2011-12. Among the distributed BS, 32.23 tons were distributed to GO, 2.84 tons to NGO and 66.54 tons to PS seed producing organizations/companies. Besides, BRRI has been supplying breeder seed through the BRRI’s Rice Seed Network to the partner organizations for producing foundation seed for increasing quality rice production of the country.

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: 01-07-2011

End Date: 30-06-2012

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 the quality of rice production in 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 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 2011-12, Genetic Resources and Seed Division, BRRI, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government	Budget:
2.	Budget:

Total Budget (Tk.) :

Achievement/Findings:

A total of 115.90 tons of breeder seed (BS) were produced during 2011-12. Among the production, 16.89 tons BS were produced by GRS division Gazipur, 7.28 tons by Farm division Gazippur, 4.25 tons by BRRI R/S Rangpur, 19.89 tons by BRRI R/S Rajshahi, 10.17 tons by BRRI R/S Habiganj, 12.97 tons by BRRI R/S Comilla, 13.14 tons by BRRI R/S Bhanga, 7.41 tons by BRRI R/S Sonagazi, 15.44 tons by BRRI R/S Barisal and 8.46 tons by BRRI R/S Satkhira, respectively. Besides, the highest amount of BS (9.24 tons) was produced from BR11, followed by 7.20 tons from BRRI dhan49, 3.35 tons from BRRI dhan39 and 2.38 tons from BR10 etc. during T. Aman and 47.36 tons from BRRI dhan28, followed by 9.72 tons from BRRI dhan29, 8.13 tons from BRRI dhan50 and 3.35 tons from BRRI dhan47 etc. during Boro seasons, respectively. On the other hand, a total of 102.01 tons breeder seed were distributed during 2011-12. Among the distribution, 13.39 tons were distributed to GO, 0.83 to NGO and 15.17 to PS organizations/companies during T.Aman and 15.98 tons to GO, 2.01 to NGO and 51.37 to PS during Boro seasons, respectively. Besides, 2.86 tons BS were distributed to GO during Aus season for increasing quality rice production of the country.

Knowledge Management: Report/Proceedings