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Development of Parental Lines for Hybrid Variety in Rapeseed

M A Latif Akanda
Oilseed Research Centre, Bangladesh Agricultural Reaearch Institute, Joydebpur, Gazipur-1701.

Abstract/ Executive Summary:

Restorer line and Ogura CMS line were crossed with three short duration B. napus lines to develop F₁ generation during last year and F₁ seeds were selfed during this year. Two CMS lines were crossed with three short duration B. napus lines. Hybrid seeds from three hybrids were selfed to develop S₁ generation. When late matured restorer line crossed with short duration B. napus lines, it became 12 days earlier. S₁ and F₁ seeds obtained from different cross combinations were stored for evaluation in the next year.

Keywords: Rapeseed, Variety, Parental lines

Location: Joydebpur, Gazipur

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Variety and Species

Commodity: Mustard

Objectives:

To develop parental lines for hybrid variety in rapeseed.

Methodology:

The experiment was conducted at Joydebpur during rabi 2013-14. A restorer line (F₂P₇) and an Ogura CMS line were collected BSMRAU, Gazipur. Restorer line and Ogura CMS line were crossed with three short duration (85-88 days) B. napus lines, Nap-0876, Nap-0869 and Nap-205, during last rabi 2012-13. F₁ seeds were sown during rabi 2013-14 and selfing was done. Two CMS lines, CMSZ₁(248) and CMSZ₂(279), were also crossed with three short duration B. napus lines. Hybrid seeds of three rapeseed hybrids were collected. Hybrid seed of hybrid variety Golden Sapphire (Brassica rapa) was obtained from Suprem Seed Company. Hybrid seeds of two hybrid varieties Yunyouzaerhao-2 and Yunyouzaerhae-10 (Brassica napus) were collected from China. Hybrid seeds were sown and selfing of plants was done for developing S₁ generation. Sowing was done on 21 November 2013.

Source of Information: Annual Research Report 2013-14, ORC, BARI, Joydebpur, Gazipur, Page: 13-14

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was found that the restorer line took 128 days to mature. When crossed with short duration (85-88 days) B. napus lines, it took 116 days to mature i.e., 12 days earlier. Total 79 F₁plants from three cross combinations and restorer line were selfed, 1334 siliquae and 4006 seeds were obtained.

Knowledge Management: Report/Proceedings