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Growth and Seed Yield of Mungbean as Influenced by Leaf Clipping and Fertilizer Doses

M. Sultana
TCRC, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

M.M. Haque
Khamar Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

S.Sultana
Department of Soil Science, Sher-e- Bangla Agricultural University, Dhaka -1207. Bangladesh

M.M. Rahman
Plant pathology Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

B. Ahmed
Plant physiology Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at the experimental farm of Sher-e-Bangla Agricultural University (SAU), Dhaka, during the period from March 2007 to June 2007 to study the influence of different leaf clipping and fertilizer doses on growth and seed yield of mungbean. The trial comprised four treatments on leaf clipping (No removal, removal of new leaves developed after first flowering, removal of subtending leaves beneath the inflorescences and removal of empty leaves), and three treatments on fertilizer doses per hector (10 kg N + 20 kg P₂O₅ + 15 kg K₂O, 20 kg N + 40 kg P₂O₅ + 30 kg K₂O and 30 kg N + 60 kg P₂O₅+ 45 kg K₂O). Results showed that the leaf clipping treatments had significant effect on growth and yield parameters. Removal of empty leaves resulted in the highest dry matters from root, inflorescences with yield and all the yield attributes as well. The fertilizer doses also affected the studied parameter significantly. The highest values on most of the growth and yield parameters were obtained with 20 kg N + 40 kg P₂O₅ + 30 kg K₂O/ha. In case of interaction of treatments, removal of empty leaves coupled with 20 kg N + 40 kg P₂O₅ + 30 kg K₂O (ha) showed significantly highest values on root dry weight (2.49 g/plant), stover weight (2.10 g/plant), pod length (12.98 cm), number of seeds/pod (12.31), 1000 seed weight (40.67 g), grain yield (1.12 t/ha) and harvest index (34.78 %). The higher yield was attributed to the absence of leaves having no inflorescence on their axils and also to the balanced fertilization.

Keywords: Leaf clipping, Sseed yield, Growth and fertilizers

Location: Sher-e-Bangla Agricultural University (SAU), Dhaka

Start Date: 00-03-2007

End Date: 00-06-2007

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

1. To study the influence of different leaf clipping and fertilizer doses on growth and seed yield of mungbean.

Methodology:

The experiment a factorial one and was laid out in a randomized complete block design (RCBD). Each treatment was replicated three times the size of each plot was 3m × 2m. The distance between two adjacent replications (block) was 1.0 meter and plot-to plot distance was 0.75 meter. Leaf clipping treatments are C₀= No removal, C₁=Removal of new leaves developed after first flowering , C₂=Removal of subtending leaves (at the base of each inflorescence), C₃=Removal of empty leaves (from the nodes having no inflorescence) and Fertilizer treatments are F₁ =10 Kg N +20 kg P₂O₅+15 kg K₂O/ha, F₂=20 kg N +40 kg P₂O₅ + 30 kg K₂O /ha, F₃ =30 kg N + 60 kg P₂O₅ + 45 Kg K₂O/ha. Seeds were sown on 29 March, 2007 by hand. Mungbean seeds were sown in line maintaining line to line distance of 30 cm. Different growth and yield data were recorded from the experiment. Data were recorded on Plant height, Leaf area, Number of seeds per pod, 1000- seed weight, Grain weight per hectare, Harvest index, and Dry weight of leaflets, Dry weight of inflorescence, Dry weight of steam and Dry weight of roots. The data collected on different parameters were statistically analyzed using the MSTAT- computer package program. The means were compared following least significance deference (LSD) test at 0.05 level of significance.

Source of Information: BANGLADESH RESEARCH PUBLICATIONS JOURNAL; ISSN: 1998-2003, Volume: 9, Issue: 2, Page: 79-86, November - December, 2013

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

For high seed yield in mungbean, the formation and development of new leaves after the attainment of reproductive phase were not found to be desirable. Seed yield of mungbean could be increased to some extent by removing the lower empty leaves (the relative sink) before pod development. For optimum growth and productivity of mungbean, fertilizers at the rate of 20 kg N + 40 kg P₂O₅ + 30 kg K₂O/ha might be the optimum.

Knowledge Management: Journal