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Growing of M1 Generation of Nerica-1 and Nerica-10 in Boro Season

Dr. M. M. Islam
Chief Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Ferdous Ikbal
Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Abstract/ Executive Summary:

The experiment was conducted at the Experimental field of Genetics and Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh with a view to develop higher yielding and salinity tolerant variety of rice, seeds of NERICA-1 and NERICA-10 were irradiated with 250, 350 and 450 Gy doses of gamma rays from 60⁰C source of Institute of Food and Radiation Biology (IFRB), Savar. The irradiated seeds were sprouted and sown on dry soil in holes at 15 cm distances within rows of 20 cm apart separately dose wise variety-1 on 22 February 2012. Result revealed that seedling height of NERICA-1 and NERICA-10 were decreased gradually with gradual increase in gamma ray doses except NERICA-1 at 250 Gy dose. In contrast, plant height and yield plant^-1 at maturity in NERICA-1 decreased gradually with gradual increase in gamma ray doses while only plant height at NERICA-10 showed such trend. These findings confirm the occurrence of chromosomal aberrations in these two varieties and thus new combinations are expected in M₂ generation which would be selected in the next T. Aman seson. For this, M₁ seeds from each plant have been individually to grow plant-progeny-rows.

Keywords: Growing of M1 generation, NERICA-1 and NERICA-10, Boro season, Rice

Location: Experimental field of Genetics and Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Start Date: 00-01-2012

End Date: 00-06-2012

Program Area: Variety and Species

Commodity: Rice

Objectives:

Objective of this study was to develop higher yielding and salinity tolerant variety of rice by irradiating the seeds of NERICA-1 and NERICA-10.

Methodology:

The experiment was conducted at the Experimental field of Genetics and Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh with a view to develop higher yielding and salinity tolerant variety of rice, seeds of NERICA-1 and NERICA-10 were irradiated with 250, 350 and 450 Gy doses of gamma rays from60⁰C source of Institute of Food and Radiation Biology (IFRB), Savar. The irradiated seeds were sprouted and sown on dry soil in holes at 15 cm distances within rows of 20 cm apart separately dose wise variety-1 on 22 February 2012. This experiment followed non replicated design under Rainfed condition. Recommended doses of fertilizers were used. Seedling height was recorded from 10 randomly selected plants from each dose variety-1 at 30 days after sowing (DAS). Data on plant height, number of effective tiller, panicle length, and filled and unfilled grains panicle^-1 were recorded from 5 randomly selected in each plot at harvest. Finally, the recorded data were subjected to proper statistical analysis.

Source of Information: BINA Annual Report 2011-12, Pages no. 16-17, BINA, Mymensingh-2202

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

These findings confirm the occurrence of chromosomal aberrations in these two varieties and thus new combinations are expected in M₂ generation which would be selected in the next T. Aman season. For this, M₁ seeds from each plant have been individually to grow plant-progeny-rows.

Knowledge Management: Report/Proceedings