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

Study on the Dry Matter Accumulation and Distribution in BRRI Dhan29 as Affected by Planting Density

M. Shahaduzzaman
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur

M.N. Bari
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur

M. E. Haque
Department of Agricultural Extension, Khamarbari, Dhaka.

R.C. Dey
Department of Agricultural Extension, Khamarbari, Dhaka.

F. Ahmed
Department of Agricultural Extension, Khamarbari, Dhaka.

Abstract/ Executive Summary:

A field experiment was conducted at the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during boro season (2009-10) to study the dry matter accumulation and distribution in BRRIdhan29 as affected by planting density. taking two hybrid varieties viz. IR68877H and IR696960H for comparison seven planting densities which constituted the experimental variables are T₁; IR68877H at 27 hills m^-2 (25 cm x15 cm), T₂; IR69690H at 27 hills m^-2(25 cm x15 cm), T₃; BRRI dhan 29 at 27 hills m^-2 (25 cm x15 cm), T₄; BRRIdhan 29 at 40 hills m^-2 (25 cm x10 cm), T₅ ; BRRIdhan 29 at 50 hills m^-2 (20 cm x10 cm), T₆ ; BRRIdhan 29 at 67 hills m^-2 (15 cm x10 cm) and T₇; BRRIdhan 29 at 111 hills m^-2 (15 cm x 6cm). The experiment was laid out in a complete block design (RCBD) with three replications where unit plots were 5m x 3m with a distance of plot to plot 1m and block to block 1.5 m. Destructive plant samplings were done at 15 days interval starting from 21 DAT to maturity. Data revealed that Total dry matter (TDM) accumulation over time varied considerably due to variety as well as population density. Among the rice varieties at standard population density, TDM production at maturity was the highest in BRRIdhan 29 (1497.17 g m^-2). Among the density treatments of BRRIdhan 29, T₅ (50 hills m^-2) treatment produced the highest TDM (2032 g m^-2) which was followed closely by T₇ (111 hills m^-2) treatment (1977.6 g m^-2).

Keywords: Dry matter, Rice varieties, Planting density, Distribution

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur

Start Date: 00-11-2009

End Date: 00-04-2010

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To assess the effects of planting density on grain and biological yield and also dry matter remobilization in different rice varieties.

Methodology:

The field experiment was conducted at the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur under wet land condition during boro season (2009-10) to study the dry matter accumulation and distribution of three rice varieties as affected by planting density. The rice varieties were BRRI dhan 29, hybrid IR68877H and IR69690H and five planting densities constituted the experimental variables as T₁; IR68877H at 27 hills m^-2(25 cm x15 cm), T₂; IR69690H at 27 hills m^-2 (25 cm x15 cm), T₃; BRRIdhan 29 at 27 hills m^-2 (25 cm x15 cm), T₄; BRRIdhan 29 at 40 hills m^-2 (25 cm x10 cm), T₅ ; BRRIdhan 29 at 50 hills m^-2 (20 cm x10 cm), T₆ ; BRRIdhan 29 at 67 hills m^-2 (15 cm x10 cm) and T₇; BRRI dhan 29 at 111 hills m^-2 (15 cm x 6 cm). The soil was silty clay of shallow red brown terrace type under Salna Series of Madhupur Tract containing a pH of 6.5. The experiment was laid out in a complete block design (RCBD) with three replications where unit plots were 5m x 3m with a distance of plot to plot 1m and block to block 1.5 m. At the time of final land preparation cowdung was added @ 10 t ha^-1 and K, S and Zn were applied @ 60, 12 and 3 kg ha^-1 respectively. The rates of N were 124, 184, 230, 308 and 510 for the plant population of 27, 40, 50, 67 and 111 hills m^-2 respectively and it was applied in four equal installments at basal, maximum tillering, panicle initiation and flowering stage. Thirty five days old one rice seedling was transplanted in each hill and gap filling was done after two weeks of transplanting with the same aged seedlings. Adequate intercultural practices were done to keep weed, insect-pest infestation at minimum level and a 2 to 4 cm standing water was maintained in the field until the varieties attained at hard dough stage. Destructive plant samplings were done at 15 days interval starting from 21 DAT to maturity and at each sampling; ten plants per plot were uprooted sequentially from second or third rows of each variety to avoid border effect. Sampled plant parts were separated as green leaf, dead leaf, leaf sheath, stem and panicles and oven dried at 70^oC for 72 hours, weighted and then calculated the mean of ten hills in every cases. Data recorded for different parameters were put to analysis of variance (ANOVA) and the means were compared using the Least Significant Different (LSD) test.

Source of Information: J. Agrofor. Environ. 8 (1): 43-46, 2014; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Data revealed that Total dry matter (TDM) accumulation over time varied considerably due to variety as well as population density. Among the rice varieties at standard population density, TDM production at maturity was the highest in BRRIdhan 29 (1497.17 g m^-2). Among the density treatments of BRRI dhan29, T₅ (50 hills m^-2) treatment produced the highest TDM (2032 g m^-2) which was followed closely by T₇ (111 hills m^-2) treatment (1977.6 g m^-2).

Knowledge Management: Journal