Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Avenue for Spikelet Sterility.

Dr. Jatish Chandra Roy
SSO
Agronomy Diovision, BRRI

Abstract/ Executive Summary:

Objective of this study was to find out the avenue of reducing the spikelet sterility by improving the fertilizer management in rice cultivation. Different four fertilizer treatments were used in this study. The test variety was BRRI dhan29.After flowering. The study indicates that a large number of spikelet sterility seem aborted and or sterile, from which we do not get any grain. Consequently, at harvesting a large number of chaffs are obtained resulting low yield. The cause of this spikelet sterility might be genetical, environmental and or cultural. Nutrient deficiency or disorder plays a dominant role in the formation of spikelet sterility. If we reduce the sterility percentage, a considerable yield could be increased without increasing the total spikelet per unit area.

Keywords: Spikelet sterility, Panicle , Fertilizer management, Rice cultivation.

Location: BRRI farm, Gazipur

Start Date: 01-07-2004

End Date: 30-06-2005

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To find out the avenue of reducing the spikelet sterility by improving the fertilizer management in rice cultivation.

Methodology:

The study was conducted at BRRI farm, Gazipur. The treatment were i) BRRI recommended fertilizer management, ii) Basal N application, top dress at 25-30 DAT, at 15 days before PI and at 20 days after PI; iii) Soil test based fertilizer application along with Cu and Mg supplementation at MT stage and iv) NPK balanced fertilizer (3:1:3) application. The test variety was BRRI dhan29.

Source of Information: BRRI. Proceedings of the BRRI Annual Internal Review for 2004-2005. Bangladesh Rice Research Institute (BRRI). Gazipur -1701.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Results indicated that the panicle production was identical among the treatment. The lowest spikelet sterility was observed in T3 treatment where soil test based fertilizer and Cu & Mg were applied followed by T2 treatment. Likewise, the grain number per panicle percentage spikelet sterility and higher grain number per panicle was reflected in grain yield where 0.3 t/ha more yield was obtained compared to BRRI recommended fertilizer management practice.

Knowledge Management: Report/Proceedings