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Debranching Effect on Morpho-physiological Attributes and Seed Yield of Sesame

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

Dr. Md. Babul Akter
Senior Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

A pot experiment was conducted at BINA pot yard, Mymensingh during February to May 2018 to assess the effect of different levels of debranching on yield of two sesame varieties viz. Binatil-2 and Binatil-3. The debranching levels were: i) control, ii) mainstem (MS) only, iii) MS with 1 branch, iv) MS with 2 branches, v) MS with 3 branches and vi) MS with 4 branches. Control plants had 5-6 branches/plant. Recommended fertilizers and cultural practices were followed. The treatments were imposed after branch initiation and maintained up to harvest. The collected data were analyzed statistically. Debranching had no significant effect on plant height, photosynthesis, chlorophyll content and seed size. The higher pod yield was recorded in mainstem with 2-4 branches. The pod yield was higher in mainstem with 2-4 branches due to increase number of pods plant^-1. The lowest pod yield was recorded in uniculm plant due to fewer pod plant^-1.

Keywords: Sesame, Debranching, Photosynthesis, Yield arributes, Yield

Location: BINA, Mymensingh

Start Date: 01-02-2018

End Date: 31-05-2018

Program Area: Variety and Species

Commodity: Sesame

Objectives:

To assess the effect of different levels of debranching on yield of sesame varieties

Methodology:

A pot experiment was conducted with Binatil-2 and Binatil-3 at BINA pot yard, Mymensingh during February to May 2018. The debranching levels were: i) control, ii) mainstem (MS) only, iii) MS with 1 branch, iv) MS with 2 branches, v) MS with 3 branches and vi) MS with 4 branches. Control plants had 5-6 branches/plant. Recommended fertilizers and cultural practices were followed. The treatments were imposed after branch initiation and maintained up to harvest. The collected data were analyzed statistically.

Source of Information: BINA Annual Report 2017-18: 91-92.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Debranching had no significant effect on plant height, photosynthesis, chlorophyll content and seed size of sesame varieties. The higher pod yield was recorded in mainstem with 2-4 branches. The pod yield was higher in mainstem with 2-4 branches due to increase number of pods plant^-1. The lowest pod yield was recorded in uniculm plant due to fewer pod plant^-1.

Knowledge Management: Report/Proceedings