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Study of Shattering Problem of BRRI Dhan47 in the Coastal Areas

Dr. Rumena Yasmeen
Principal Scientific Officer
Plant Physiology Division, Bangladesh Rice Research Institute, Gazipur-1701

H.N. Barman
Senior Scientific Officer
Plant Physiology Division, Bangladesh Rice Research Institute, Gazipur-1701

Dr. J. K. Biswas
Director (Admin and common service)
Bangladesh Rice Research Institute, Gazipur-1701

Abstract/ Executive Summary:

An experiment was conducted in the coastal areas to determine yield and shattering of BRRI dhan47 at different harvesting times in two locations, BRRI, Gazipur and BRRI Satkhira. Variety and harvesting time interaction effect was not significant. So the main effects are presented here. At Gazipur, shattering of BRRI dhan47 was significantly higher than that of BRRI dhan27. The same trend was observed at Satkhira. There is no significant difference of shattering percentage of rice grains between BRRI dhan47, and BINA8. Shattering intensity showed little relationship with the advancement of maturity.

Keywords: Salinity, Rice, Tolerance, Shattering.

Location: BRRI, Gazipur and BRRI Satkhira

Start Date: 01-07-2010

End Date: 30-06-2011

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To estimate the shattering intensity of BRRI dhan47.

Methodology:

The experiment was conducted in two locations, BRRI, Gazipur and BRRI Satkhira. Two salt tolerant varieties namely BRRI dhan47 and BINA8 and one ordinary variety BRRI dhan27 were considered for Satkhira. But for Gazipur only BRRI dhan47 and BRRI dhan27 were considered. Randomized completely block design was considered for these experiment. Flowering notes were taken in each plot during 1st, 50%, 80% and 100% flowering. Then harvesting was considered 21, 24, 27, 30 and 33 days after 50% flowering of each variety. For each harvest 2 X 2 m² plot were considered. Harvesting was done cautiously on a polythene sheet to collect shattered grain. The grains in the stocks were then threshed. The shattered as well as threshed grains were weighted separately and adjusted 14% moisture content. Statistical analysis was done by CROPSTAT.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2010-2011)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Variety and harvesting time interaction effect was not significant. So the main effects are presented here. At Gazipur, shattering of BRRI dhan47 was significantly higher than that of BRRI dhan27. The same trend was observed at Satkhira. In terms shattering ability, there is no significant difference between the two salt tolerant varieties BRRI dhan47 and BINA dhan8. Shattering intensity showed little relationship with the advancement of maturity.

Knowledge Management: Report/Proceedings