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Influence of Seed Treatment with Indole Acetic Acid on Mungbean Cultivation

Rumman Shafi Quaderi
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Shah Md. Asraful Islam
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

A. F. M. G. Faruque Hossain
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Md. Manzurul Hoque
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Md. Shahidul Haque
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Abstract/ Executive Summary:

The study was carried out in the Field Laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during the period from October 2000 to February 2001 to evaluate the influence of seed treatment with Indole Acetic Acid (IAA) by the concentration of 50 ppm, 100 ppm and 200 ppm on the growth, yield and yield contributing characters of two modern mungbean (Vigna radiata L.) varieties viz. Barimoog-4 and Barimoog-5. The two-factor experiment was laid out by Randomized Complete Block Design (RCBD) with 3 replications. In the experimental, seed treatment with 100 ppm IAA resulted the highest plant height, leaf area, leaf area index and number of seeds pod^-1 (7.73). On the other hand, seed treatment with 200 ppm IAA resulted the highest Relative Growth Rate (RGR), Crop Growth Rate (CGR), Net Assimilation Rate (NAR), total dry matter, number of pods plant^-1 (16.30), pod length (5.59 cm), fresh weight of pod plant^-1 (13.00 g), dry weight of pod plant^-1 (9.65 g), 1000-seed weight (40.10 g), seed yield plant^-1 (4.99 g), harvest index (38.48). In addition, among the mungbean varieties, Binamoog-5 performed better than that of Binamoog-4.

Keywords: Mungbean, Vigna radiata, Seed treatment , Indole acetic acid, Growth, Yield

Location: Field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh

Start Date: 00-10-2000

End Date: 00-02-2001

Program Area: Seed Technology

Commodity: Mungbean

Objectives:

To evaluate the influence of pre-sowing seed treatment with indole acetic acid on the growth, yield and yield contributing characters of two modern mungbean varieties viz., Barimoog-4 and Barimoog-5.

Methodology:

The experiment was conducted at the Field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during the period from October, 2000 to February, 2001. There were four treatments viz., (i) T₁= Control (untreated), (ii) T₂= 50 ppm IAA, (iii) T₃= 100 ppm IAA and (iv) T₄= 200 ppm IAA. Two mungbean varieties viz., (i) V₁= Barimoog-4 and (ii) V₂= Barimoog-5 were used in the experiment. The land was prepared by three ploughing followed by laddering. The stubbles were removed from the land. The two-factor experiment was laid out by Randomized Complete Block Design (RCBD) with three replications. The two varieties were considered as the factor A and the treatments were considered as the levels of factor B. There were altogether eight treatment combinations. So the total numbers of plots were 24 and the size of unit plot was 2x1 m. The block-to-block and plot-to-plot distance was 1m and 0.5 m, respectively. The land was fertilized at 6 ton cowdung ha^-1, 66 kg ha^-1 urea, 82 kg ha^-1 TSP and 33 kg ha^-1 MP. The fertilizers were applied at final land preparation (BARC, 1997). Seed rate was 25 kg ha^-1. Seeds were soaked in IAA solution as per treatments for 3 h. In case of control, seed were soaked only in water. Seeds were sown in line sowing method maintaining 2 to 3 cm depth. Line to line and seed to seed distance was 30 cm and 15 cm and 2 seeds were placed in each point. The young plants were irrigated by water cans. Moreover, first weeding and second weeding followed by thinning was done at 15 and 45 days after sowing. Besides, Dimecrone 50 EC was sprayed at 1 L ha^-1 to prevent pod borer infestation. The first crop sampling was done on 25 days after sowing and it was continued up to 55 days after sowing at 10 days interval. At the time of each harvest, five plants were selected from each plot and leaf area, plant height, number of leaves per plant was recorded separately at each harvest. Physiological parameters like Leaf Area Index (LAI), Crop Growth Rate (CGR), Relative Growth Rate (RGR), Net Assimilation Rate (NAR) and total dry matter were also measured (Hunt, 1978). In addition, different yield contributing characters viz., number of pods plant^-1, pod length, fresh weight of pod plant^-1, dry weight of pod plant^-1, number of seeds pod^-1, thousand seed weight, seed yield/plant, seed yield was recorded and harvest index was measured. The collected data were statistically analyzed and the treatments mean were compared by DMRT.

Source of Information: International Journal of Botany, 2(1): 42-47, 2006, ISSN 1811-9700.

Article Link (Online Journal): DOI: 10.3923/ijb.2006.42.47; URL: http://scialert.net/abstract/?doi=ijb.2006.42.47

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The highest number of pods plant^-1, fresh weight of pod plant^-1, dry weight of pod plant^-1, 1000 seed weight, seed yield plant^-1 and harvest index was found in Barimoog-5. On the other hand, the highest pod length and number of seeds^-1 pod was found in Barimoog-4. Interaction effect of seed treatment with IAA and varieties on yield and yield contributing characters of mungbean was recorded at 10 days interval from 25 to 55 days after sowing. The highest number of pods plant^-1, fresh weight of pod plant^-1 and dry weight of pod plant^-1 was found V₂T₃. The highest pod length and 1000-seed weight was found in V₁T₄ and V₂T₄, respectively. On the other hand, the highest seed yield plant^-1 and harvest index was found in V₂T₃. In addition, among the mungbean varieties, Binamoog-5 performed better than that of Binamoog-4.

Knowledge Management: Journal