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Influence of Plant Growth Regulators on Vegetative Growth and Yield Performance of Mustard Mutant Varieties

A. S. M. Zahidul Islam
Former MS Student
Department of Crop Botany, BAU, Mymensingh

Dr. M. A. Salam
CSO, Agronomy Division
Bangladesh Institute of Nuclear Agriculture, Mymensingh

Dr. Md. Tariqul Islam
Principal Scientific Officer and Head
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

A pot experiment was conducted at the Bangladesh Institute of Nuclear Agriculture, Mymensingh November 2003 to January 2004 with Banasarisha-4 and four levels of two PGRS like ABT-8 and IAA, (0, 10, 20 and 30 ppm) to find out their effect on growth and yield of mustard. Observations were made on the number of leaves, leaf area, flowers, siliqua, root length, total dry matter plant^-1and seed yield. The PGRs resulted in significant effect on those parameters. The mustard variety showed the best performance in total dry matter and yield attributes at 30 ppm of ABT-8 and 20 ppm of IAA. The highest seed yield plant^-1, 1000-seed weight and harvest index were obtained at 20 ppm of IAA and 30 ppm of ABT-8. All parameters were found to increase gradually with the increase of ABT'-8 concentration up to 30 ppm in every growth stage. But this increase found with IAA application up to 20 ppm. There was retardation of at 30 ppm of ABT-8 in comparison to 20 ppm of IAA. In order to enhance growth, yield and yield attributes of mustard, 30 ppm of ABT-8 and 20 ppm of IAA as foliar spray were found more effective.

Keywords: PGR, ABT-8, Vegetative growth, Yield

Location: Bangladesh Institute of Nuclear Agriculture, Mymensingh

Start Date: 01-11-2003

End Date: 31-01-2004

Program Area: Crop-Soil-Water Management

Commodity: Mustard

Objectives:

The objectives of the study were to assess the influence of ABT-8 and IAA on vegetative growth and yield of mustard and to find out the dose for better growth and yield.

Methodology:

A pot experiment was conducted at the Bangladesh Institute of Nuclear Agriculture, Mymensingh during the period from November 2003 to January 2004 with a variety of mustard namely Banasarisha-4 and four levels of two PGRS like ABT-8 and IAA, (0, 10, 20 and 30 ppm) to find out their effect on growth and yield of mustard. The experiment was laid out in a Randomized Complete Block Design with four replications. Each pot contained 8 kg of soil collected from BINA farm. Cow dung, urea, TSP, MP, gypsum, ZnO and borax were applied at the rate of 32, 2, 1.43, 0.56, 1.2, 0.04 and 0.04 g in each pot to maintain the dose of 1200, 250, 180, 70, 150, 5 and 5 kg/ha of urea, TSP, MP, gypsum, ZnO and borax, respectively. Mustard seeds were sown in plot on 1 November 2003. Data on morpho-physiological, yield attributes and were recorded. Analysis of variance was done following randomized complete block design with the help of computer package MSTAT-C (Freed, 1986). The mean difference among the treatment was tested with Duncan’s Multiple Range Test (Gomez and Gomez, 1984).

Source of Information: MS thesis by A.S.M. ZAHIDUL ISLAM, Examination Roll No. 03AgCBot.JJ14M, Reg. No. 22729, Session: 1995-96, January-June Semester, 2004, Department of Crop Botany, BAU, Mymensingh

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The mustard variety showed the best performance in total dry matter and yield attributes at 30 ppm of ABT-8 and 20 ppm of IAA. The highest seed yield plant^-1, 1000-seed weight and harvest index were obtained at 20 ppm of IAA and 30 ppm of ABT-8. All parameters were found to increase gradually with the increase of ABT-8 concentration up to 30 ppm in every growth stage. But this increase found with IAA application up to 20 ppm. There was retardation of at 30 ppm of ABT-8 in comparison to 20 ppm of IAA. In order to enhance growth, yield and yield attributes of mustard, 30 ppm of ABT-8 and 20 ppm of IAA as foliar spray were found more effective.

Knowledge Management: Thesis