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Effect of Miyobi on Growth and Yield in Soybean

Md Kamruzzaman Sarker
MS student
Department of Crop Botany., Bangladesh Agricultural University, Mymensingh

Prof. Dr. A. K. M. Azad-ud-doula Prodhan
Professor
Department of Crop Botany., Bangladesh Agricultural University, Mymensingh

Prof. Dr. Md. Habibur Rahman Pramanik
Professor
Department of Crop Botany., Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

A field experiment was conducted to investigate the effect of Miyobi on morpho-physiological, yield attributes and yield of soybean cv. Shohag to investigate the effect of Miyobi on growth, morphological features, yield attributes and yield. The experiment comprised five levels of Miyobi viz. 0, 2, 4 and 6 mgL^-1 sprayed on soybean plants at 40 days after sowing. Results revealed that application of Miyobi increased plant height, branch number, leaf area, TDM and yield contributing characters over control. The highest branch number, leaf area, leaf area index, TDM, AGR and yield contributing characters were recorded in 4 and 6 mgL^-1 Miyobi applied plant while the highest plant height was observed in 6 mg L^-1. Control showed the lowest of the above studied parameters. The highest seed yield was recorded in both in 4 and 6 mg L^-1 Miyobi applied plant due to increased number of pods plant^-1. Therefore, Miyobi @ 4 mg L^-1 may be applied for increased seed yield of soybean.

Keywords: Miyobi hormone, Soybean, Growth, Yield

Location: Research farm, Bangladesh Agricultural University, Mymensingh

Start Date: 01-12-2005

End Date: 17-03-2006

Program Area: Crop-Soil-Water Management

Commodity: Soybean

Objectives:

To study the effect of Miyobi on growth, morphological features, yield attributes and yield in soybean; and to find out the optimum dose of Miyobi for getting higher yield.

Methodology:

The experiment was conducted at the Field Laboratory of Bangladesh Agricultural University, Mymensingh, during the period from December 2005 to March 2006, to investigate the effect of Miyobi application on morphological characters, growth, yield attributes and yield in a soybean variety cv. Shohag. The experiment was comprised of five levels of Miyobi viz., 0, 2.0, 4.0 and 6.0 mgL^-1 sprayed on soybean at 40 days after sowing. The experiment was laid out in a Randomized Complete Block Design with three replications. Urea, triple super phosphate (TSP), muriate of potash (MP) and gypsum were used as source of nitrogen, phosphorus, potassium and sulphur, respectively. Total amount of urea, TSP, MP and gypsum were applied at basal doses during final land preparation. The doses of fertilizers were: urea 40, TSP 80, MP 60 and gypsum 60 kg ha^-1. To study ontogenetic growth characteristics, a total of four harvests were made and at final harvest, data were collected on some morpho-physiological, yield attributes and yield. The first crop sampling was done at 55 days after sowing (DAS) and continued at an interval of 10 days up to 85 DAS. From each plot five plants were randomly selected and uprooted for obtaining data of necessary parameters. The plants were separated into leaves, stems and roots and the corresponding dry weights were recorded after oven dry at 80 ± 2 ⁰C for 72 hours. The leaf area of each sample was measured by LICOR automatic leaf area meter. The growth analysis like absolute growth rate and leaf area index were carried out following the formulae of Hunt (1978). At harvest, yield attributes and seed yield was recorded. The collected data were analyzed statistically and the means were adjudged by DMRT at 5% level of significance.

Source of Information: MS Thesis by Md Kamruzzaman Sarker, Examination Roll No. 05Ag Cbot JJ-09M, Semester: January-June 2006, Department of Crop Botany., Bangladesh Agricultural University, Mymensingh

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Foliar application of Miyobi at vegetative stage had significant positive influence on morpho-physiological characters, yield attributes and seed yield of soybean over control; and application of Miyobi @ 4.0 and 6.0 mg L^-1 had remarkable superiority for plant growth, yield components and yield over the other doses of Miyobi. So, Miyobi with 4.0 mg L^-1 may be applied for increased seed yield of soybean.

Knowledge Management: Thesis