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

Effect of Planting Density on Yield and Yield Attributes of Local Aromatic Rice Varieties

J. Halder
ACT (Science) DSHE, SEQAEP Ministry of Education, Peoples’ Republic of Bangladesh

G. M. Rokon
Agricultural Development Officer, International Maize and Wheat Improvement Center (CIMMYT), Bangladesh

M. A. Islam
ACI-IRRI PPP Project, Bangladesh

N. Salahin
Scientific Officer
Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh

M. K. Alam
Scientific Officer
Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field of Patuakhali Science and Technology University, Dumki, Patuakhali from June to December, 2013 to find out the effect of variety and planting density on the yield and yield attributing characters of local aromatic rice. The experiment was laid out in a factorial randomized complete block design with three replications, which consisted of three local aromatic rice varieties (Chinigura, Shakhorkhora and Kalizira) and four planting densities were viz. S1 (25 cm × 20 cm), S2 (20 cm × 20 cm), S3 (20 cm × 15 cm) and S4 (20 cm × 10 cm). The results revealed that the local aromatic rice var. Shakhorkhora variety produced the highest number of grains per panicle (131) and 1000-grain weight (13.8 g), consequently higher grain (2.63 t ha^-1), followed by Kalizira (2.56 t ha^-1) and straw yield (4.21 t ha^-1). One the other hand, higher number of tillers per hill (14.8), number of grains per panicle (140 nos.) were found in 20 cm × 20 cm spacing with higher grain yield.

Keywords: Local aromatic rice, Variety, Planting density, Rice yield.

Location: At the department of Agronomy field of Patuakhali Science and Technology University, Dumki, Patuakhali

Start Date: 00-06-2013

End Date: 00-12-2013

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present experiment was undertaken to find out the suitable local aromatic variety and optimum spacing for higher grain yield of rice varieties.

Methodology:

The experiment was conducted at the department of Agronomy field of Patuakhali Science and Technology University, Dumki, Patuakhali with geographical location of 22°26´N latitude and 90°22´E longitude at an elevation of 1.5 m above the sea level, during the period from June 2013 to December 2013 in the aman season. The field of the experimental site belonged to the Ganges Tidal Floodplain (AEZ- 13) which was characterized by non-calcareous Grey Floodplain soil with silty clay texture. The soil was mildly acidic and non- saline. The soil was loamy in texture and having soil pH ranges from 6.0 to 6.8. Organic matter content was low (1.1%).The experiment was laid out in a factorial Randomized Complete Block Design (RCBD) with three replications. The treatments were : Factor A: Variety- Chinigura (V1), Shakhorkhora (V2), Kalizira (V3) and Factor B: Planting density- 25 cm × 20 cm (S1), 20 cm × 20 cm (S2), 20 cm × 15 cm (S3), 20 cm × 10 cm (S4). On July 1, 2013, 30-day-old rice seedlings were transplanted into the experimental plots. The recommended fertilizer dose was N90 P20 K50 S7.5 B2 and Zn2 kg ha⁻¹, respectively. Urea was applied in three equal parts, whereby one-third of the urea and the entire amount of triple superphosphate (TSP), murate of potash (MOP), and gypsum were applied during final land preparation; one-third of the urea was applied at the maximum vegetative growth stage (30 days after transplanting [DAT]); and one-third of the urea was applied before the panicle initiation stage of Boro season rice (45 DAT). Though the season was monsoon, supplemental irrigation was used to keep the paddy field well flooded until the rice plants reached maturity. These were applied at 1, 15, 28, 40, 54, 63, and 78 DAT, with a total of 28 cm of irrigation water being applied during rice growth. Weeding was performed at 30 DAT. Precautionary measures were taken at every stage of crop production using natural methods of pest and disease management, such as light traps, the placement of sticks for birds to stand on, and the removal of disease-infected plants at an early stage of infection, removing any need for chemical and herbicide use. The T. aman rice was harvested on 3 November 2013. The data were collected from two 1 m2 area selected randomly during transplanting of rice. All data regarding yield and yield attributes were collected from the quadrates, which then converted to yield in ton per hectare. Initial soil samples from plots of the experiment were collected from 0-15 cm soil depth and were analyzed in Soil Science laboratory of Patuakhali Science and Technology University, Dumki, Patuakhali. Right after collection of samples, soils were oven-dried and then sieved to clean off foreign materials. The soil samples were then analyzed for soil textural class, pH and organic carbon according to Black (1965), Ghosh (1983) and Jackson (1973), respectively. The collected data on growth parameters, yield contributing characters and yield of aromatic rice varieties under different spacing were analyzed statistically by using SPSS Inc. (Version 21, USA) and mean separation was done by LSD test.

Source of Information: Bangladesh J. Agril. Res. 43(3): 489-497, September 2018 ISSN 0258-7122 (Print), 2408-8293 (Online)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on above results, it indicates that among the three local aromatic rice varieties, Shakhorkhora and Kalizira showed higher grain yield with closer spacing 20 cm × 20 cm.

Knowledge Management: Journal