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Impact of Row Arrangements, Age of Tiller Seedlings and Number of Tiller Seedlings Hill-1 on the Growth Performance of Transplanted Aman Rice (cv. Br23)

M.A.R. Sarkar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, BANGLADESH

M.A. Hossain
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, BANGLADESH

S.K. Paul*
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, BANGLADESH

Abstract/ Executive Summary:

The experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to see the effect of row arrangements, age of tiller seedlings and number of tiller seedlings hill-1 on growth of transplant Aman rice (cv. BR23). The experiment comprised three row arrangements viz. single, double and triple row; two ages of tiller seedling viz. 25 and 35 days and three levels of number of tiller seedlings hill-1 viz., 2, 4 and 6 tiller seedlings hill-1 . The effect of row arrangement, age of tiller seedlings and number of tiller seedlings hill-1 were significant on plant height, number of leaves hill-1 , number of total tillers hill-1 , leaf dry weight, stem dry weight and total dry weight. The tallest plants at 70 DAT, the highest number of leaves and leaf dry weight were found at 25, 40, 55 and 70 DAT in single row arrangement which was as good as double row arrangement while shorter plant and the lowest number of leaves hill-1 were found in triple row arrangement. The highest stem and total dry matter production hill-1 were recorded in triple row arrangement and the lowest were found in single row arrangement. Wider spacing significantly increased plant height, total tiller production hill-1, leaf production hill-1 and leaf dry matter production while closer spacing of triple rows enhance stem and total dry matter production hill-1. Transplanted Aman rice (BR23) can be grown in single rows for the highest plant height, more tiller production, leaf production and leaf dry matter production hill-1. In case of total dry matter production cv. BR23 can be grown in triple rows by transplanting 35-day old seedlings with 6 tiller seedlings hill-1.

Keywords: Days after transplanting Growth performance Tiller seedling Transplanted Aman rice

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present study had been undertaken to see the effect of row arrangements, age of tiller seedlings and number of tiller seedlings planted hill-1 on the growth of transplanted Aman rice.

Methodology:

The experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University Mymensingh, Bangladesh. The soil belongs to the Old Brahmaputa Floodplain (AEZ 9) having soil of sandy loam texture with pH 5.9-6.5. A modern high yielding variety of transplanted Aman rice BR23 (Dishari) was used as the test crop in the experiment. The experiment consisted of three levels of row arrangement viz. single row (row spacing 25cm), double row (row spacing 25-10-25cm), triple row (row spacing 25-10-10-25cm), two types of tiller seedlings viz. 25 days and 35 days old, and three levels of tiller seedlings hill-1 viz. 2, 4 and 6. There were 18 treatment combinations. The experiment was laid out in a three factor Randomized Complete Block Design with three replications. The area of each unit plot was 4.0m × 2.5m. Tillers were separated from 25 and 35 days after transplanting (DAT) from previously transplanted rice field and then transplanted in the main field according to experimental treatments. The experimental plots were fertilized with Urea, Triple Super phosphate (TSP), Muriate of Potash (MoP), Gypsum and Zinc sulphate at the rate of 200, 160, 140, 60 and 10kg ha-1 , respectively. The entire amount of TSP, MoP, Gypsum and Zinc sulphate were applied at final land preparation. Urea was top dressed in three equal installments at 10 days after transplanting, tillering stage and panicle initiation (PI) stage. The crop was properly weeded and irrigated whenever necessary. Four hills were randomly selected and marked with the bamboo sticks in each unit plot excluding border rows to record the data on plant height and tiller number. Plant height was measured from the base of the plant up to the tip of the longest leaf. Plant height, tiller number, total number of leaves, dry weight of stem and dry weight of leaves were recorded four times at 25, 40, 55 and 70 days after transplanting (DAT). For measurement of number of leaves hill-1 , stem dry weight, leaf dry weight and total dry matter, destructive sampling of four randomly selected hills was used. Plant samples were carefully uprooted each time and separated into leaf and stem. Number of leaves hill-1were then counted and dried in the oven at 85± 5°C for 72 hours to a constant weight. Dry weight of leaves and stems were recorded separately with an electrical balance. Dry weight of leaves and stems were altogether regarded as total dry matter. Recorded data were analyzed statistically using Analysis of Variance (ANOVA) technique and the differences among treatment means were adjudged by Duncan’s Multiple Range Test (DMRT) (Gomez and Gomez, 1984).

Source of Information: Archives of Agriculture and Environmental Science 2(3): 152-161 (2017)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the above results it can be concluded that transplanted Aman rice (cv. BR23) can be grown in single rows for tallest plant, highest tiller production, leaf production and leaf dry matter production hill-1 . In case of total dry matter production cv. BR23 can be grown in triple rows by transplanting 35-day old seedlings with 6 tiller seedlings hill-1.

Knowledge Management: Journal