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Growth and Yield Performance of Local T Aman Genotypes in Southern Region of Bangladesh

MHK Howlader
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

M Rasel
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

MS Ahmed
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

MM Hasan
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

LA Banu
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

Abstract/ Executive Summary:

The present experiment was conducted at the Research Field Laboratory of the Department of Agricultural Botany, Patuakhali Science and Technology University (PSTU), Patuakhali during the period from July to December 2013 to evaluate among the local T Aman rice genotypes for obtaining the most productive genotype regarding growth and yield performance under southern region. Four local T Aman rice genotypes namely Lalchicon, Lalmota, Moulata and Mothamota were used as planting materials and laid out in RCBD with three replications. The genotype Moulata was produced significantly the tallest plant (155.0 cm) and number of total tillers per hill (11.80); statistically higher LAI (2.133) and TDM (16.80 g hill^–1) at vegetative stage (60 DAT). Similarly, number of maximum effective and minimum non-effective tillers per hill (10.80 and 1.333), total and filled grains panicle^–1(128.50 and 115.80), minimum unfilled grains panicle (12.67), thousand grain weight (25.35 g), grain, straw and biological yield (3.657, 6.000 and 9.657 t ha^–1 respectively) and HI (37.86%)also higher in Moulata at harvest. So, Moulata was the most productive genotype among the studied local T Aman rice genotypes under the southern region.

Keywords: T Aman, Growth, Yield, Rice, Botany,

Location: Research Farm of Patuakhali Science and Technology University, Dumki, Patuakhali

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Rice

Objectives:

To find out the most potential genotype among the selected T Aman genotypes concerning various growth and yield contributing characters under the southern region.

Methodology:

The experimental field belongs to the Research Farm of Patuakhali Science and Technology University, Dumki, Patuakhali and covered by the Ganges Tidal Flood Plains under the AEZ–13. The experimental field was medium high in nature and silty clay loam soil having pH value of 6.8. The four local T Aman rice genotypes viz.Lalchicon, Lalmota, Moulata and Metamora as planting material were used and laid out Randomized Complete Block Design (RCBD) with three replications and plot size was 4.0 × 2.5 m where block to block and plot to plot distance was 1.0 and 0.5m. The fertilizer were applied such as Gypsum, MOP, TSP, urea and ZnSO₄ at the rate of 65, 75, 130, 190 and 10 kg per hectare at the time of final land preparation and different vegetative growth stages. The seedlings were transplanted maintaining spacing 20cm X 20cm and different intercultural operations were done properly. Five plants were randomly selected from each plot for measures plant height and number of leaves. To get leaf area index (LAI), randomly collected six leaves per hill get five hills of each plot and leaf area were measured by an automatic leaf area meter and finally LAI was calculated with the formula as follows- LA/P. To get effective and non effective height was observed due to the variation in genetic variability and adaptability in studied area and average of five hills of each plot was recorded. Number of total grains per panicle was noted through sum of number of filled grains and number of unfilled grains. One thousand cleaned dried seeds were counted randomly from each sample and weighed in gram as 12% moisture basis. The grain and straw yield harvest of the kg per 1 m² per plot and converted to ton per ha. The biological yield and harvest index were calculated also. Collected data were statistically analyzed through ANOVA technique and evaluated with the help of Duncan’s Multiple Range Test (Gomez and Gomez, 1984).

Source of Information: Progressive Agriculture 28 (2): 109-113, 2017

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

So, four local T Aman rice genotypes namely Lalchicon, Lalmota, Moulata and Mothamota; Moulata was produced significantly the tallest plant (155.0 cm) and number of total tillers per hill (11.80); statistically higher LAI (2.133) and TDM (16.80 g hill^–1) at vegetative stage (60 DAT). Similarly, number of maximum effective and minimum non-effective tillers per hill (10.80 and 1.333), total and filled grains panicle^–1(128.50 and 115.80), minimum unfilled grains panicle (12.67), thousand grain weight (25.35 g), grain, straw and biological yield (3.657, 6.000 and 9.657 t ha^–1 respectively) and HI (37.86%) also higher in Moulata at harvest. So, it was confimed that Moulata was the most productive genotype among the studied local T Aman rice genotypes under the southern region.

Knowledge Management: Journal