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

Performance of Double Grained Rice Cultivar Under Different Plant Spacing

Shubroto Kumar Sarkar*
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Swapan Kumar Paul
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Sontosh Chandra Chanda
Agriculture Training Institute, Ishurdi, Pabna, Bangladesh

A.K.M. Golam Sarwar
Laboratory of Plant Systematics, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

Abstract/ Executive Summary:

Plant spacing ensures uniform and optimum plant population and facilitates sufficient natural resources for crop growth which, in turns influences the crop yield positively. An investigation was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, during July to December 2017 to study the influence of plant spacing on the yield of double grained rice cultivar. The study comprised five spacing viz. 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 15 cm, 20 cm × 10 cm and 15 cm × 15 cm and two rice cultivars viz. a double grained rice cultivar and BRRI dhan49 and a double grained rice cultivar. It was laid out in a randomized complete block design with three replications. The double grained rice cultivar produced taller plant (155.65 cm), longer panicle (23.93 cm), higher 1000-grain weight (25.96) and higher straw yield (6.90 t ha-1), though the higher grain yield (3.68 t ha-1) was found in the test cultivar (BRRI dhan49). Planting at 20 cm × 15 cm produced the highest grain yield (3.70 t ha-1) which was at par with 25 cm × 15 cm, 25 cm × 10 cm and 20 cm × 10 cm while planting at 15 cm × 15 cm produced the lowest grain yield (3.13 t ha-1). The interaction of the double grained rice cultivar with all spacing combinations produced taller plants than the spacing combinations with BRRI dhan49. The higher grain yield (3.52 t ha-1) was found in the double-grained rice cultivar with 20 cm × 10 cm spacing which was at par with the spacing of 20 cm × 15 cm and 25 cm × 15 cm, respectively; although BRRI dhan49 always produced the higher yield. The lowest grain yield (3.08 t ha-1) was recorded at the double grained rice cultivar with 25 cm × 10 cm spacing, however, the same treatment produced the highest biological yield (11.23 t ha-1) due to the highest straw yield (8.15 t ha-1). Hence, the spacing 20 cm × 15 cm might be recommended for the higher grain yield in the double grained rice cultivar.

Keywords: Multiple seeded rice, Plant population, Aman, Tillers, Yield

Location: At the Agronomy Field Laboratory, Bangladesh Agricultural University

Start Date: 00-07-2017

End Date: 00-12-2017

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

Transplanting of rice maintaining optimum plant spacing could increase the grain yield by 4.7 to 12.2 %. Thus, optimization of planting spacing may contribute to the yield gap reduction in different rice cultivars. Therefore, the present research was undertaken to study the performance of a double-grained rice cultivar under different plant spacing (population density).

Methodology:

Experimental Site and Design: The study was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU) during the Aman (July to December) season of the year 2017. The site belongs to 24°75' N latitude and 90°50' E longitude at an altitude of 18 m with non-calcareous dark grey floodplain soil under the Agro-ecological Zone (AEZ 9) of Old Brahmaputra Floodplain. It was a well-drained medium high land with a silty-loam texture having pH 6.5. Randomized complete block design (RCBD) with three replications was used. There were 30-plots and the area of each unit plot was 4.0 m × 2.5 m. The distance between blocks and plots were 1 m and 75 cm, respectively. The experiment consisted of two rice cultivars viz. BRRI dhan49 and a double grained rice cultivar, and five plant spacing viz. 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 15 cm, 20 cm × 10 cm and 15 cm × 15 cm. BRRI dhan49 was used as a test cultivar in the experiment.

Crop husbandry: The land was well prepared by ploughing and cross ploughing and fertilizers were applied as per recommendation. The whole amount of phosphorus, potassium, sulphur and zinc required for the unit plot was calculated and applied @105, 74, 65 and 12.5 kg ha-1 in the form of triple superphosphate (TSP), muriate of potash (MoP), gypsum and zinc sulphate, respectively. Urea @170 kg ha-1 was top-dressed in three equal splits at 15, 35 and 55 DAT (panicle initiation stage). Healthy seeds of a double grained rice cultivar were collected from the Laboratory of Plant Systematics, Department of Crop Botany, BAU and the seeds of BRRI dhan49 rice were collected from Agronomy Field Laboratory, BAU. Sprouted rice seeds were sown in a clean nursery bed to grow the healthy seedlings. Thirty day old seedlings were transplanted at the main field @ 3 seedlings hill-1 maintaining the spacing as per treatments. Weeding and other intercultural operations were done when required to ensure the normal growth of the crop. The crop was harvested when 90% of the grains became golden yellow in colour.

Data recording and Statistical analysis: Four hills (excluding border hills) were randomly selected from each unit plot prior to harvest for recording data on plant descriptors and yield components. The harvested crop was threshed, cleaned and dried to a moisture content of 14%. Grain and straw weight were recorded and converted into t ha-1. Data were compiled and tabulated in the required format for statistical analysis. The collected data were statistically analyzed using the ‘analysis of variance (ANOVA)’ technique and the mean differences were adjudged by Duncan's Multiple Range Test (DMRT) (Gomez and Gomez, 1984).

Source of Information: Res. Agric. Livest. Fish. Vol. 8, No. 3, December 2021: 273-279

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The double grained rice cultivar when planted at 20 cm × 15 cm spacing produced the tallest plants, higher number of grains panicle-1, higher grain yield and the highest biological yield. Therefore, the double grained rice cultivar transplanted at the spacing of 20 cm × 15 cm appeared as an improved practice in terms of grain yield performance of local transplant Aman rice.

Knowledge Management: Journal