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Identification of Potential Hybrid Rice (oryza Sativa L.) Variety in Bangladesh by Evaluating the Yield Potential

Md. Maksudul Haque
Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

Elora Pervin
Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Md. Romel Biswash
Adaptive Research Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted during the period from January to June. Five varieties of hybrid rice collected from different private seed companies and one hybrid and two checks from Bangladesh Rice Research Institute (BRRI) were used r this experiment. Varieties were Sonarbangla-1, Jagoron, Hira, Aloron, Richer, BRRI hybrid-1 and two checks are BRRI dhan28 and BRRI dhan29. The experiment was conducted in RCBD with three replications. In the experiment maturity was earlier for Aloron than others. Therefore, Aloron might be considered as earlier variety for cultivation. In correlation analysis a highly significant positive association was found for plant height, days to maturity, days to 50% flowering, panicle length and filled grains per panicle. All the six hybrids were superior to best yielding checks. All the hybrids showed higher grain yield per hectare (6.15 to 7.45 t/ha) than all the checks (4.83 to 5.97 t/ha) on plot harvest basis. In general biological yield per plant had highly significant positive correlation with plant height, days to maturity, filled grain per panicle and total number of grains per panicle. Grain yield per plant had highly significant positive correlation with plant height, panicle length, 1000-grain weight, harvest index, grain yield per plot, grain yield per square meter and with grain yield per hectare. Considering varietal yield performance, the variety Aloron was found to be the best and could be recommended for higher yield.

Keywords: Evaluation, Performances, Productivity, Correlation, Hybrid Rice

Location: Bangladesh Rice Research Institute, Gazipur

Start Date: 00-01-2014

End Date: 00-06-2014

Program Area: Variety and Species

Commodity: Rice

Objectives:

To determine suitability of hybrid rice varieties in Bangladesh by evaluating their yield potential.

Methodology:

The field experiment was conducted during the period from January to June 2014. The experiment was conducted in RCBD with three replications. Five hybrid rice varieties from different private seed companies, one hybrid and two check varieties from Bangladesh Rice Research Institute were used for this experiment. Varieties were:V₁=Sonarbangla-1, V₂ = Jagoron, V₃= Hira, V₄ = Aloron, V₅ = Richer V₆ = BRRI hybrid-1, V₇ = BRRI dhan-28 (Check) and V₈ = BRRI dhan-29(Check). There were eight treatment combinations. The total no. of unit plots was 24. The size of unit plot is 3m x 2m. The distance between plot to plot and replication were 1m. Thirty days old, seedlings were transplanted in 3m x 2m plot with spacing of 25 cm x 20 cm between rows and plants, respectively with single seedling per hill. At the time of final land preparation total P and K were used as basal dose and total N splitted into three installments. The experimental plot was fertilized with 60:40:40 kg/ha N, P and K respectively. The first one third of N with basal dose, second installment 15 days after first installment and third is 15 days after second installment. Gypsum and Zinc Sulphate were also applied as a source of S and Zn at the rate 60 kg and 10 kg/ha as basal dose.

Source of Information: World Journal of Agricultural Sciences 11 (1): 13-18, 2015, ISSN 1817-3047

Article Link (Online Journal): DOI: 10.5829/idosi.wjas.2015.11.1.1839

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering varietal characters and yield performance, the variety Aloron was found to be the best than the other commercial varieties studied. The genotypes Aloron might be recommended for wider use.

Knowledge Management: Journal