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Parental Line Selection for Yield Contributing Character of Rice (oryza Sativa)

M.S.H. Bhuiyan
Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymenshing, Bangladesh

M.A. Malek
Chief Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymenshing, Bangladesh

M.F. Ikbal
Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymenshing, Bangladesh

A. Topu
Scientific Officer
Bangladesh Institute of Nuclear Agriculture, Sub-station, Satkhira, Bangladesh

A.B.M.S. Alam
Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Sub-station, Chapainawabgong, Bangladesh

Abstract/ Executive Summary:

The prime objective of any hybrid program is to bring the desirable genes present in the parent into a single genetic background. Therefore, an experiment was conducted to evaluate the parental performance at the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University. Nine A (male sterile) lines and Four R (restoral) lines were used here. To consider their performance various agronomic trait was selected and most emphasis was provide for plant height, days to maturity and other yield contributing character. The characters studied in this investigation exhibited low to moderate range of variability and heritability. Out of all RGBU0014A perform the height days to maturity then others. Although yield is more or less similar for the restorer parent, but considering other agronomic yield contributing trait RGBU003A, RGBU002A, RGBU009A can be selected to cross with superior restoral SL8 R and Mitali R to obtain ideal plant type.

Keywords: Rice, Restorer Line, Female Parent, Yield Performance

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

Start Date: 00-12-2012

End Date: 00-07-2013

Program Area: Variety and Species

Commodity: Rice

Objectives:

The objective of this study was selection of superior parental line for future use as a crossing material.

Methodology:

An experiment was conducted to evaluate the parental performance at the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur during December 2012 to July 2013. The experimental site is located at the centre of Madhupur Tract (24°09' N latitude and 90°26' E longitude) having an elevation of 8.2 meter from sea level (Anonymous, 1989). Nine A lines and Four R lines were used here namely RGBU002A, RGBU003A, RGBU005A, RGBU006A, RGBU009A, RGBU010A, RGBU012A, RGBU013A, RGBU014A as a meal sterile line and SL8R, LP70R, Gold R and Mitali R as a restorer line. Four different maintainer line was also used here (data was not present here). The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The experimental area was divided into three blocks, representing three replications. Five rows of 4m each constituted the experimental unit. Treatment was distributed in the experimental unit through randomization by using the MSTAT program. Data was taken from five parent for all yield contributing character namely plant height, number of effective and ineffective tiller, days to maturity, length of normal leaf, flag leaf, length of panicle, number of primary and secondary branch/panicle and yield. Earlier it was mentioned that two type of parent (male serial and restorer) was taken for this experiment so we need extra care for collecting data. When we consider effective tiller, we consider panicle bearing one although it was sterile, and for fill and unfilled grain, we take restorer line only our consideration.

Source of Information: Int. J. Agril. Res. Innov. & Tech. 7 (1): 46-50, June, 2017

Article Link (Online Journal): http://www.ijarit.webs.com

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Finally, it can be concluded that yield is more or less similar for the entire meal or pollen parent. But to obtain ideal plant type we need to consider other agronomically important trait like days to maturity, length of flag leaf, number of filled grain with medium height RGBU003A, RGBU012A may be superior as a female parent where SL8R as a restorer parent. Considering other yield contributing character RGBU006A, RGBU009A, RGBU010A may be considered as superior female parent to cross with any other restorer line.

Knowledge Management: Journal