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Reduced Grain Shattering by Foliar Application of Chitosan in Rice

Dr. M. M. A. Mondal
Principal Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

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:

The experiment was conducted at BINA, Mymensingh during Aus season of 2016 to May 2017 to investigate the response of grain shattering to foliar application of Chitosan two times at heading and grain filling stages at the rate of 75 ppm. Three varieties viz., Binadhan-8, Binadhan-14 and BRRI dhan47 were used. The experiment was laid out in a RCBD with three replications. After harvest, 5 hills were mildly shaking by hand and shattering and without shattering grains were counted and converted into percentage of shattering grains. The foliar application of Chitosan at heading and grain filling had no effect on reducing grain shattering at harvest in all tested varieties.

Keywords: Rice, Chitosan, Grain shattering, Yield

Location: BINA, Mymensingh

Start Date: 01-04-2016

End Date: 31-07-2016

Program Area: Variety and Species

Commodity: Rice

Objectives:

To investigate the response of grain shattering to foliar application of Chitosan

Methodology:

The experiment was conducted at BINA, Mymensingh during April to July 2016 to investigate the response of grain shattering to foliar application of Chitosan two times at heading and grain filling stages at the rate of 75 ppm. Three varieties viz., Binadhan-8, Binadhan-14 and BRRI dhan47 were used as planting material. The experiment was laid out in a randomized complete block design with three replications. The unit plot size was 4 m × 3 m. Plant spacing was 20 cm × 20 cm. Fertilizers such as urea, TSP, MP and gypsum were applied @ 250, 150, 80 and 40 kg ha^-1, respectively. Urea was applied in three splits at 10, 30 and 50 DAT and other fertilizers were applied as basal dose during the final land preparation. Other cultural practices such as weeding and pest control were done as and when necessary for normal plant growth and development. After harvest, 5 hills were mildly shaking by hand and shattering and without shattering grains were counted and converted into percentage of shattering grains.

Source of Information: BINA Annual Report, 2016-17: 81-82.

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The foliar application of Chitosan at heading and grain filling had no effect on reducing grain shattering at harvest in all tested varieties.

Knowledge Management: Report/Proceedings