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Observational Trial (ot) of Experimental Hybrids

Laila Ferdousi Lipi
Scientific Officer
Scientific Officer, Hybrid Rice Division, BRRI, Gazipur

Dr.Md.Jamil Hassan
Principal Scientific Officer
Hybrid Rice Division, BRRI, Gazipur

Abstract/ Executive Summary:

Thirty (164) experimental hybrids were grown in augmented randomized complete block design to select promising hybrids with high yield potential and desirable traits. The desirable traits were plant height (cm), number of effective tillers/hill, spikelet fertility (%), panicle length(cm),thousand seed weight(gm),grain type and days to maturity. Three standard check varities were used namely BRRI dhan28, BRRI dhan29 and BRRI hybrid dhan3.The hybrids that showed yield advantage over standard check were BRRI7A/PR325R, BRRI7A/DoelR, BRRI7A/Heera10R, BRRI11A/Heera10R, BRRI13A/BRRI23R, BRRI13A/ShaktiR, B RRI13A/BRRI17R, BRRI13A/BRRI20R, BRRI28A/BRRI26R, BRRI28A/HB09R, BRRI52A/BRRI26R, BRRI53A/BRRI26R. These hybrids could be selected as promising hybrids for further trial.

Keywords: Observational trial, Promising hybrid and Boro season

Location: BRRI, Gazipur.

Start Date: 05-12-2012

End Date: 30-05-2013

Program Area: Variety and Species

Commodity: Rice

Objectives:

Selection of promising hybrids lines for variety develop

Methodology:

Variety: 164 hybrids (Fine grain, High yield with medium grain) along with 3 checks. Thirty five days old seedlings were transplanted in 2m² area plot following augmented design with 3 checks using single seedling per hill at a spacing of 20cmx15 cm. Fertilizer dose was applied 270:130:120:70:10 Urea- TSP-MP- Gypsum- Zn SO₄kg/ha respectively.

Source of Information: Proceedings of BRRI Annual Internal Review for 2012-2013

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Twelve(12) promising hybrid combinations were selected out of 164 experimental hybrids based on satisfactory yield advantage over check. Upon commercial seed production feasibility of these selected hybrid combinations preliminary yield trial (PYT) and multilocation trials (MLT) will be conducted. Hybrid combination also will be submitted to SCA trial

Knowledge Management: Report/Proceedings