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Tiller Production and Yield Improvement of T. Aman Rice Varieties Through Wider Spacing

H. Zaman
Geetanjoly Agro Society, Dhaka-1207, Bangladesh

H. Mehraj
The United Graduate School of Agricultural Sciences, Ehime University, 3-5-7 Tarami, Matsumaya, Ehime 790-8556, Japan.

S.M. Masum
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M.H. Ali
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M.S.H. Mandal
CRP-Hill Agriculture, Krishi Gobeshona Foundation, Bandarban-4600, Bangladesh

Abstract/ Executive Summary:

Performance of three T. aman rice variety namely, Biroyn (Indigenous) (V₁), BINA han-7 (V₂) and BRRI dhan34 (V₃) were evaluated with three levels of plant population density viz. raised bed with plant spacing of 75 cm x 75 cm (S₁), leveled bed with plant spacing of 50 cm x 50 cm (S₂) and leveled bed with plant spacing of 25 cm x 15 cm (S₃). Variety exerted significant influence on yield of transplant aman rice. The highest grain yield (7.1 t ha^-1) and straw yield (11.7 t ha^-1) was observed in Biroy indigenous variety. The plant spacing of 50 cm x 50 cm showed the highest (6.8 t ha^-1) grain yield and straw yield (9.6 t ha^-1) among the plant population treatments. It was observed that in most of the cases, all the varieties performed better for their yield contributing characters with wider spacing of 50 cm x 50 cm. With attention to results of this experiment due to higher (9.2 t ha^-1) grain yield in V₁ S₂treatment this level suggest for planting the indigenous Biroyn variety with 50 cm x 50 cm spacing in transplant Aman season. Besides this, genotype presumes a promising one deserves extensive research onwards.

Keywords: Indigenous variety, Spacing, Growth, Yield

Location: Agricultural farm of Sher-e-Bangla Agricultural University Dhaka-1207

Start Date: 00-07-2013

End Date: 00-12-2013

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To know the effect of plant spacing on the rice varieties

Methodology:

The field experiment was conducted at the agricultural farm of Sher-e-Bangla Agricultural University Dhaka-1207 during aman (July-December) season in 2013. The experiment was laid out in a Split plot design with three replications. Three rice variety viz. Biroyn (Indigenous variety) (V₁), BINA dhan7 (V₂) and BRRI dhan 34 (V₃ ) and three spacing i.e. raised bed with 75 cmx 75 cm (S ), 50 cm x 50 cm (S ) and of 25 cm x 15 cm (S ) plant spacing. Recommended fertilizer dose for transplant aman rice i.e. Urea, TSP, MOP, Gypsum and Zinc Sulphate @ 120 kg ha^-1 , 90 kg ha-1 , 40 kg ha , 60 kg ha^-1 and 10 kg ha^-1 respectively were used. All fertilizers were applied during final land preparation except urea that applied in three equal splits at 7, 30 and 50 DAT. Seedlings of Biroyn (V₁) was raised in one seedling per Seedlings of Biroyn (V₁) was raised in one seedling per main filed when the seedlings age reached fifteen day. Seedlings of BINA dhan7 (V₂₎ and BRRI dhan34 (V₃) were raised in traditional seed bed. Thirty day old seedlings were uprooted and transplanted in the field on August 5,2013. Two seedlings were transplanted in each hill for BINA dhan7 (V₂) and BRRI dhan34 (V₃) according to plant spacing treatments. The harvesting was done on December 5, 2013 manually from each plot. The crop was harvested plot-wise at full maturity when 90% of the grains turned into golden yellow. Hills from central 5 m² area of each plot were harvested for collecting data on grain and straw yields. The harvested crop was then bundled separately, tagged properly and brought to the threshing floor and processed as usual. Prior to harvest five hills were selected at random from each plot and carefully uprooted to collect data on yield and yield contributing characters. All the collected data were analyzed following the analysis of variance (ANOVA) technique using MSTAT-C package and the mean differences among the treatments were compared by Duncan’s Multiple Range Test (DMRT) at 5% level of significance.

Source of Information: Middle-East Journal of Scientific Research 23 (6): 1114-1121, 2015

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Cultivation of Biroy rice with planting spacing of 50 cm x 50 cm can improved yield attributing parameters, straw and grain yield of rice for Aman season. However, more research works are to be done to verify these findings in different agro-ecological zones of Bangladesh.

Knowledge Management: Journal