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Source Nursery During T.aman2014

Anowara Akter
Scientific Officer
Hybrid Rice Division Bangladesh Rice Research Institute Bangladesh, Gazipur-1701

M Jamil Hasan
Principal Scientific Officer
Hybrid Rice Division Bangladesh Rice Research Institute Bangladesh, Gazipur-1701

Abstract/ Executive Summary:

Bacterial leaf blight (BB), caused by Xanthomonas oryzae pv. oryzae (Xoo), is a devasing disease in the rice growing countries of Asia. Bacterial blight is a major disease of a hybrid rice. With respect to Increasing demand for rice especially in developing countries hybrid rice is considered as a viable alternative technology for breaking the present yield ceiling of modern varieties. A total of 32 moderately BB resistance fixed lines and one IRBB materials along with 1CMS lines were used. Parents were grown in three (3) sets with the spacing of 20x20cm. The CMS lines were planted in 4 seeding dates with an interval of 5 days to synchronize with the early, medium and late source nursery entries. Hand crosses were made to produce 50-150 F₁ seeds from each cross. Thirty three (33) testcrosses (F1s) were made using 1 CMS lines during this season.

Keywords: BB,parental lines

Location: BRRI,Gazipur

Start Date: 05-07-2014

End Date: 15-11-2014

Program Area: Variety and Species

Commodity: Rice

Objectives:

Identification of prospective maintainers and restorers of diversified origin for making experimental rice hybrids.

Methodology:

A total of 32 moderately BB resistance fixed lines and one IRBB materials along with 1CMS lines were used. Parents were grown in three (3) sets with the spacing of 20x20cm. The CMS lines were planted in 4 seeding dates with an interval of 5 days to synchronize with the early, medium and late source nursery entries. Hand crosses were made to produce 50-150 F₁ seeds from each cross.

Source of Information:

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Thirty three (33) testcrosses (F1s) were made using 1 CMS lines during this season.

Knowledge Management: Report/Proceedings