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Application of Growth Regulator for Synchronizing Ripening of Mungbean (2017--2018)

M. O. ALI
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

J. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M.A. ISLAM
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M.M. ZAMAN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at the research field of Pulses Research Centre, Ishurdi and PRSS, BARI, Gazipur during 2017-18 to find out the suitable growth regulator to synchronize ripening of mugbean. There were 8 treatments vizT₁=Glycel (Glyphosate, 3.70 L/ha), T₂=Gramoxone (Paraquat, 2.25L/ha), T₃=Bonmara (2, 4-D Amine, 2.80 L/ha), T₄=Weednil 5EC (Quizalofop-p-Ethyl, 650 ml/ha), T₅=Jascot (Paraquat 20% and Glyphosate 41%), T₆= Ripen-15 (Ethephon,1 L/ha), T₇= Calcium carbide (60 kg/ha) and T₈= Control. The highest seed yield (796 kg ha^-1at PRC, Ishurdi and 247kg ha^-1 at PRSS, Gazipur) was found from Control and the lowest grain yield was also recorded from Jajkot (390 kg ha^-1) at PRC, Ishurdi and Ripen (180kg ha^-1)at PRSS, Gazipur. The highest gross return (Tk. 31866) was obtained from Control (Tk. 31866) but the highest MBCR (3.20, at PRC, Ishurdi and1.85, at PRSS, Gazipur) were got from Gramoxon.

Keywords: Mugbean, Growth regulator, Synchronizing ripening

Location: Pulses Research Centre, Ishurdi and PRSS, BARI, Gazipur

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Mungbean, Hormone

Objectives:

The present study has been undertaken to find out the most effective growth regulator to enhance mugbean ripening at a time.

Methodology:

The experiment was conducted at the research field of Pulses Research Centre, Regional Agriculture Research Station, Ishurdi, and PRSS, BARI, Gazipur during 2017-18 to find out the suitable growth regulator to synchronize ripening of mugbean. The trial consisted of eight chemical treatments such as T₁=Glycel (Glyphosate, 3.70 L/ha), T₂=Gramoxone (Paraquat, 2.25 L/ha), T₃=Bonmara/Filter (2, 4-D Amine, 2.80 L/ha), T₄=Weednil 5EC (Quizalofop-p-Ethyl, 650 ml/ha), T₅=Jascot (Paraquat 20% and Glyphosate 41%), T₆= Ripen-15 (Ethephon,1 L/ha), T₇= Calcium carbide (60 kg/ha) and T₈= Control. The experiment was designed as a randomized complete block with three replications. The mungbean crop was sown on 15 March 2018 and harvested on 3 June 2018. The unit plot size was 20 m² (4 m x 5m). The fertilizers were applied @ 20-20-20 kg NPK /ha. BARI Mung-6 was sown with a line spacing of 30 cm@ 25 kg/ha. One hand weeding was done 25 days after sowing (DAS) for controlling the weed. Emitaf (@ 2ml L-1 was used one time for controlling insects. Growth regulators were applied 65 days after sowing (20 May 2018). Data on yield contributing characters were recorded from 10 randomly selected plants from each plot and the grain yield was recorded from the central area of four square meters of the plot and converted to t/ha. For the germination test, twenty-five seeds of each sample were placed in Petridish containing wet sand. The plastic pots were placed at room temperature for 3 days for germination. Seedlings were counted on the third day. Germination percentage was calculated using the following formula (Krishnasamy and Seshu, The MSTAT-C software package was used for all statistical analyses. The mean differences between treatments were separated by the least significant difference (LSD) at P≤ 0.05 for the measured variables.

Source of Information: Annual Research Report 2017-2018, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Different growth regulators showed no significant effect on the yield contributing characters except pods plant^-1. The maximum number of pods per plant (12.66) was recorded from Control and the lowest number of pods per plant was observed in Gramoxon (8.13) at PRC, Ishurdi. Seed yield was significantly influenced by various chemicals. The highest seed yield was found from Control (796 kg ha^-1at PRC, Ishurdi and 247kg ha^-1 at PRSS, Gazipur) and the lowest grain yield was also recorded from Jajkot (390 kg ha^-1) at PRC, Ishurdi and Ripen (180kg ha^-1)at PRSS, Gazipur. About a hundred percent pod was synchronized in Glycel, Gramoxon, Jajkot and others chemical varied from 80% to 95%. Dryness of leaf was also ranged from 95% to 100% in Glycel, Gramoxon, Jajkot and others chemical did not affect a leaf. The seed germination percentage varied 84%-96%. Economic analysis of different treatments revealed that the highest cost was calculated in Calcium carbide treatment (Tk. 132000) due to the high cost of chemical at Ishurdi and the lowest cost was computed in Gramoxon (Tk. 6770) due to less labour at harvesting. The highest gross return (Tk. 31866) was obtained from Control (Tk. 31866) but the highest MBCR (3.20, at PRC, Ishurdi and 1.85, at PRSS, Gazipur)) were got from Gramoxon. Considering the yield and MBCR it can be concluded that Gramoxon is a suitable growth regulator to synchronize the ripening of mungbean

Knowledge Management: Report/Proceedings