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Variation in Morphological Characters and Yield Attributes of Five Selected Soybean Genotypes

D Sultana
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

MN Bari
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

MA Karim
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

MAB Mia
Department of Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

RR Sarker
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202

Abstract/ Executive Summary:

A field experiment was conducted at the experimental field of the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2013 to March 2014. Four soybean genotypes i.e BU Soybean1, BD2329, BD2331, AGS313 and a check variety BARI Soybean 6 were used to evaluate their variations in morphological characters and yield attributes. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The highest LAI (4.4) was found in genotype AGS313 and the smallest was found in BU Soyabean1. The highest pod size of 625 mg pod^-1 was found in AGS313 while the lowest of 340 mg pod^-1 was observed in BU Soybean1. Although BU Soyabean1 had smaller seed size but it had higher number of pods plant^-1 (32.1) compared to other genotypes. The maximum 100-seed weight was recorded in AGS313 (16.34 g) and the minimum was obtained from the genotype BU Soybean1 (11.0 g). AGS313 genotype contributed to the highest grain yield of 4.29 tha^-1, while BU Soyabean1 stood second position contributing 2.65 tha^-1. Results also indicated that not only seed size but also number of pods plant^-1 contributed to grain yield. Again there were highly significant differences among genotypes for all the characters.

Keywords: Morphology; Soyabean genotypes; Yield performance

Location: The experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 00-11-2013

End Date: 00-03-2014

Program Area: Variety and Species

Commodity: Soybean

Objectives:

To relate grain growth dynamics with yield performance of selected soybean genotypes.

Methodology:

The experiment was carried out at the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during November 2013 through March 2014. Four selected soybean genotypes with high yield potential and a check variety were included in the investigation. The genotypes were BARI Soybean 6 (variety), BU Soyabean1, BD2329, BD2331, AGS313. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. All fertilizers were applied before final land preparation. Irrigation was given whenever necessary. At physiological maturity, dry pods were harvested at different days after sowing (DAS) for different genotypes. The harvesting was started from 105 DAS and continued up to 115 DAS for different genotypes. The crop was harvested on maturity. Data were recorded on different parameters, viz. plant height, Leaf area index (LAI), number of pods plant^-1, number of branches plant^-1, number of seeds pod^-1, 100-seed weight, seed yield (gm-2), straw yield and harvest index. The data in respect of all parameters were analyzed following analysis of variance (ANOVA) technique with the help of computer package, Statistics 10. The means for all the treatment were calculated and the analysis of variance for all the characters was performed by F- test. Significance of the difference among the means was evaluated by LSD (Least Significance Difference) at 5% level of probability.

Source of Information: Journal of Environmental Science and Natural Resources, 8(2): 93-96, 2015

Article Link (Online Journal): http://www.banglajol.info/index.php/JESNR/article/view/26873/17947

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among five soybean genotypes AGS313 produced the maximum grain yield (4.29 tha^-1) due to having the larger seed size. Therefore, increase in morphological traits will ultimately increase the grain yield. The morphological characters can be considered as selection criteria in improving the grain yield of soybean genotypes.

Knowledge Management: Journal