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Evaluation and Screening of F4 Populations of Fine Grain Aromatic and Higher Iron Containing Rice in T. Aman Season

M. A. K. Azad
Chief 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. Based on maturity, panicle length, filled grains panicle^-1 and grain yield/hill. 13 hills were selected, 5 from RC(1) group, 7 from RC(2) group and 1 from RC(3) group. It showed that maturity period of all the selected hills ranged 123-131 days, shorter than the parent Red rice. Three selected hills derived from crossing between Red rice and Binasail designated as RC (2)-2-4-1, RC (2)-2-4-2, RC (2)-2-4-3 and the parent Binadhan-7 took the shortest period to mature. Plant height of the selected hills ranged 115-146 cm with RC (2)-2-1-2 being the tallest while RC (2)-2-4-2 the shortest. In contrast, heights of the parents Binadhan-7 and Red rice were significantly shorter than any of the selected hills despite height of 4 hills did not differ from Binadhan-9. Effective tiller number of the hills ranged 8-15 with RC (3)-4-1 being the highest and RC (2)-2-4-1 the lowest. Panicle length of the selected hills ranged 26-34 cm with RC (3)-4-1 being the longest while RC (1)-3-1 the shortest. In contrast, panicle length of the three parents ranged 27-30 cm with Binadhan-9 being the longest while Binadhan-7 the shortest. Filled grains panicle^-1 ranged 110-212 g with RC (2)-2-1-1 being the highest while RC (1)-3-1 and Red rice the lowest. Nine hills had significantly higher grain yield hill^-1 than any of the parent. All these hills will be screened again in the next Aman season, 2012.

Keywords: Screening, F4 populations, Iron containing rice

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

Start Date: 00-07-2011

End Date: 00-12-2011

Program Area: Conservation and Biodiversity

Commodity: Rice

Objectives:

Objective of the study was to evaluate and screen the F₄populations of fine grain aromatic and higher iron containing rice in T. Aman season.

Methodology:

The experiment was conducted at the Experimental field of Genetics and Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh. Seven F₄populations of which 3 derived by crossing aromatic long fine grain Binadhan-9 with Binadhan-7 designated as RC(3), 3 by crossing high iron containing Red rice with Binasail designated as RC(2), and the other by crossing Red rice with Binadhan-7 designated as RC(1). All these populations were transplanted on 18 August 2011 at 37 days after sowing at BINA farm, Mymensingh in plant-progeny-rows. The three parents of the populations were also included in this experiment. Seedlings were transplanted at 15 cm distances within rows of 20 cm apart. The length of each row was 3.0 m and the number of rows per population was 7-17. Recommended doses of fertilizers, cultural and intercultural operations were also followed as and when necessitated. Data on plant height, days to maturity; number of effective tiller, panicle length, filled and unfilled grains panicle^-1 and yield hill^-1 were recorded. Maturity was recorded population basis while plant height, effective tiller number, panicle length, filled and unfilled grains panicle^-1 and grain yield were recorded from only the selected hills of each population but from 5 hills of the parents at harvest. Grain yield was recorded from 1 m² which was latter converted to yield ha^-1. Finally, the recorded data were subjected to proper statistical analysis using MSTAT-C software and means were adjudged by DMRT test.

Source of Information: BINA Annual Report 2011-12, P: 6-7, Mymensingh-2202

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Panicle length of the selected hills ranged 26-34 cm with RC (3)-4-1 being the longest while RC (1)-3-1 the shortest. In contrast, panicle length of the three parents ranged 27-30 cm with Binadhan-9 being the longest while Binadhan-7 the shortest. Filled grains panicle^-1 ranged 110-212 g with RC (2)-2-1-1 being the highest while RC (1)-3-1 and Red rice the lowest. Nine hills had significantly higher grain yield hill^-1 than any of the parent. All these hills will be screened again in the next Aman season, 2012.

Knowledge Management: Report/Proceedings