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Hybridization Among the Selected Genotypes of Kenaf and Mesta.

Md-Al-Mamum
Senior Scientific Officer(CC)
Breeding division.Bangladesh Jute Research InstituteManik MIa Avenue ,Dhaka-1207

Md Muksuder
principal ScientificOfficer(cc)
Breeding division.Bangladesh Jute Research InstituteManik MIa Avenue ,Dhaka-1207

Abstract/ Executive Summary:

Four accessions (Accs. 1565, 1641, 1657 and 1986), two advanced lines (1641/B and 1641/C), two varieties (HC-95 and BJRI Kenaf-3) and two species (Hibiscus acetosella L. and Hibiscus radiatus L.) were grown in the green house premises of BJRI on August-September in 2013 for development of breeding materials for high yielding, early maturing, smooth, water logging and salinity tolerant. Two times sowing were done after 15 days interval to ensure synchronization of flowering. Recommended intercultural and agronomic practices were done for raising the parental materials. At afternoon, the un-opened but probably mature flowers were emasculated and bagged separately. Next morning, the emasculated flowers were pollinated by desired parent and tagging then bagging. At the time of flowering, a total of 123 crosses were made among the parental lines in 22 cross combinations. Among 123 crosses, seeds obtained from 70 pods. The pods were maintained and seeds were collected separately. The developed hybrids pods were maintained as F₁ and next year conformation the F₁ hyrids.

Keywords: Hybridization among the selected genotypes of Kenaf and Mesta.

Location: green house premises of BJRI

Start Date: 01-08-2013

End Date: 01-09-2014

Program Area: Variety and Species

Commodity: Jute

Objectives:

Hybridization helps to create recombinant types by accumulating desirable genes for both quantitative characters from diverse plants. Through hybridization, it is therefore, possible to combine the desirable characters and to select superior progeny for variety improvement program. Few germplasm of diverse geographic origin were isolated having desirable characters such as less photo and thermo-sensitivity. To develop breeding materials resistance to leaf mosaic diseases, root-knot nematode, spiral borer, stem rot, prickle and bristle free. For these purposes, four accessions, two advanced lines, two varieties and two species were grown in the green house premises of BJRI in 2013.

Methodology:

Four accessions (Acc. 1565, 1641, 1657 and 1986), two advanced lines (1641/B and 1641/C), two varieties (HC-95 and BJRI Kenaf-3) and two species (Hibiscus acetosella L. and Hibiscus radiatus L.) were grown in the green house premises of BJRI on August-September 2013. Two times sowing were done after 15 days interval to ensure synchronization of flowering. Recommended intercultural and agronomic practices were done for raising the parental materials. At afternoon, the un-opend but probably mature flowers were emasculated and bagged separately. Next morning, the emasculated flowers were pollinated by desired parent and tagging then bagging. The developed hybrids pods were maintained as F₁ and next year conformation the F₁ hybrids.

Source of Information: Bangladesh Jute research Institute(BJRI). Agricultural Annual Report 2013-2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 20.000/-

Total Budget (Tk.) : 20.000/-

Achievement/Findings:

At the time of flowering, a total of 123 crosses were made among the parental lines in 22 cross combinations (Table 5). Among 123 crosses, seeds obtained from 70 pods. The pods were maintained and seeds were collected separately. The developed hybrids pods were maintained as F₁ and next year conformation the F₁ hybrids.

Knowledge Management: Report/Proceedings