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Growth Assessment of Tropical Sugarbeet as Influenced by Spacing

M.A.T. Sohel
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

M.A.E. Hossain
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

H.P. Roy
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

S.M. Reza
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

F.H. Shanta
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

M.R.R. Razib
Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna.

Abstract/ Executive Summary:

The experiment was carried out at the research field of Agronomy and Farming Systems Division, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna during 2012-2013 to determine the most suitable spacing for sugarbeet cultivation in Bangladesh. The experiment was conducted with nine spacing viz. 50 cm × 20 cm, 60 cm × 20 cm, 70 cm × 20 cm, 50 cm × 25 cm, 60 cm × 25 cm, 70 cm × 25 cm, 50 cm × 30 cm, 60 cm × 30 cm and 70 cm × 30 cm in a randomized complete block design with three replications. The effects of spacing on sugarbeet plantation were observed on growth and growth contributing components (germination percentage, number of leaves plant^-1, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, crop growth rate) of sugarbeet. The highest germination percentage (95.67%), number of leaves plant^-1 (34.33) at 30 DAS, shoot length (54.07 cm) at 120 DAS, root fresh weight (969.47 g plant^-1) at 150 DAS, shoot fresh weight (752.47 g plant^-1) at 120 DAS and other growth contributing parameters were obtained with the spacing 70 cm × 30 cm. However, the maximum root length (38.97 cm) was obtained with 50 cm × 20 cm spacing. It was concluded that the wider spacing promoted the growth of individual beet, though the optimum spacing for maximum root growth of sugarbeet was 50 cm × 20 cm.

Keywords: Germination, Growth, Spacing, Sugarbeet

Location: Agronomy and Farming Systems research field, Bangladesh Sugarcrop Research Institute

Start Date: 00-00-2012

End Date: 00-00-2013

Program Area: Crop-Soil-Water Management

Commodity: Sugar beet, Farming System

Objectives:

To find out the optimum plant spacing for sugarbeet cultivation in Bangladesh.

Methodology:

The experiment was carried out at Agronomy and Farming Systems research field, Bangladesh Sugarcrop Research Institute from November 2012 to May 2013. The experimental field was located at 24^°08¢ N latitude and 89^°04¢ E longitude at an average altitude is 20 m. The experiment comprised nine spacing viz. 50 cm x 20 cm, 60 cm x 20 cm, 70 cm x 20 cm, 50 cm x 25 cm, 60 cm x 20 cm, 70 cm x 25 cm, 50 cm x 30 cm, 60 cm x 30 cm and 70 cm x 30 cm with three replications in a randomized complete block design. The sugarbeet variety Cauvery was used in this experiment. The size of the unit plot was 16 m² (4 m x 4 m). The experimental lands were ploughed well by a tractor where the deep ploughing and cross ploughing was done four times followed by leveling with a ladder. The land was then uniformly fertilized with 120 kg N, 45 kg P, 135 kg K, 19 kg S, 2.5 kg Zn and 1.2 kg B ha^-1 (BSRI, 2011). Three weedings were done at 30, 50 and 70 DAS. Plants were thinned at the age of 35 days after sowing to obtain one plant hill^-1. Earthing-up was done to cover the root base and to facilitate drainage operation. Construction and re-construction were performed during each time of weeding. The experimental field required 3 irrigations applied at 45, 90 and 125 DAS. Data collection for growth contributing components (germination percentage, number of leaves plant^-1, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, crop growth rate) were done from five randomly selected plants of each plot. Root and shoot dry weight were measured through air-dry, and then oven dry at 70⁰C till constant weight was obtained which were converted to g plant^-1. All data were statistically analyzed according to the technique of analysis of variance (ANOVA) by means of “STATISTICS-10” Computer software package for windows version (Statistics-10, 2013) and the least significant difference (LSD) method was used to test the differences between treatment means at 5% level of probability.

Source of Information: Bangladesh Agron. J. 2020, 23(2): 51-58

Article Link (Online Journal): DOI: https://doi.org/10.3329/baj.v23i2.52452

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The findings of the study reflected that despite the individual plant with wider spacing of 70 cm x 30 cm produced the maximum growth of sugarbeet the spacing 50 cm x 20 cm was the optimum for higher root yield.

Knowledge Management: Journal