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Zonal Yield Trial with a Short Duration M7 High Yielding Mutant Line of Boro Rice.

Dr. M. A. K. Azad
Principal Scientific Officer
Plant Breeding Division, BINA BAU Campus, Mymensingh-2202

Md. Hasanuzzaman Rani
Scientific Officer
Plant Breeding Division, BINA BAU Campus, Mymensingh-2202

Abstract/ Executive Summary:

It appears that the mutant line, RM(2)-40(C)-1-1-10 matured 10-15 days earlier than its parent variety BRRI dhan29 at all locations and produced higher grain yield than the parent. The average yield of eight locations of the mutant was 6.46 t/ha which was 0.41 tha^-1 more than the parent variety BRRI dhan29. The decorticated grain length and breadth of the mutant were 7.4 mm and 2.5 mm, respectively, with a ratio of 2.96 indicating its grains are long and slender.

Keywords: Boro rice, Short duration mutant line, Yield performance, Grain quality

Location: BINA farm, Mymensingh and BINA sub-station farms at Magura, Rangpur and Barisal; and farmer’s field at Maijbari, Mymensingh, Magura,Pakkhifanda, Rangpur and Barisal.

Start Date: 01-07-2013

End Date: 30-06-2014

Program Area: Variety and Species

Commodity: Rice

Objectives:

To assess the yield performance of a short duration high yielding M₇ mutant line of boro rice

Methodology:

Seedlings of a high yielding short duration mutant line, RM(2)-40(C)-1-1-10 along with its parent BRRI dhan29 were sown on December 2013 to 01 January and transplanted during 09 January to 13 February 2014. The experiment was conducted following RCB design with three replications. Seedlings were transplanted at 15 cm distances within rows of 20 cm apart. A unit plot size was 5.0 m x 4.0m. Recommended doses of fertilizers were applied and cultural & intercultural operations were done as and when necessary. Data on plant height, number of effective tiller, panicle length, filled and unfilled grains panicle^-1 and yield plot^-1 were recorded. Maturity was recorded plot basis while plant height, effective tiller number, panicle length, filled and unfilled grains panicle^-1 was recorded from five hills plot^-1 at harvest. Grain yield was recorded from 1m² area which was later converted to tha^-1 at 14% moisture. Moisture data was recorded with a grain moisture meter.

Source of Information: BINA Annual Report, 2013-14, pp.1-55.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The mutant line, RM (2)-40(C)-1-1-10 matured 10-15 days earlier than BRRI dhan29 and produced more grain yield.

Knowledge Management: Report/Proceedings