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Yield Gap of Stress Tolerant Rice Varieties BINAdhan-10 & BINAdhan-11 in Some Selected Areas of Bangladesh

Razia Sultana
Bangladesh Institute ofNuclear Agriculture (BINA), Mymensingh, Bangladesh

Md. Habibur Rahman
Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh

Md. Rashidul Haque
Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh

Md. Mohsin Ali Sarkar
Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh

Syful Islam
Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh

Abstract/ Executive Summary:

Binadhan-10 & Binadhan-11 are climate smart stress tolerant high yielding rice varieties (yield > 4 t⋅ha⁻¹) have saline tolerant EC up to 12 ds/m and submergence tolerant up to 20 - 25 days capacity. The present study was an attempt to analyze the yield gap of stress tolerant varieties Binadhan-10 & Binadhan-11 in some selected areas of Bangladesh. The objectives of the study were: 1) to estimate the yield gap of Binadhan-10 &-11 growers among the study areas; 2) to identify the factors affecting the yield of these variety; and 3) to suggest some policy guidelines to minimize the yield gap. The study was conducted in eight Binadhan-10 & Binadhan-11 growing areas in Bangladesh. In this study, four districts namely Satkhira, Khulna, Barishal, and Cox’s Bazar were used for Binadhan-10 and Mymensingh, Jamalpur, Sherpur and Sunamgonj were taken for Binadhan-11. It is based on primary level data from eight sub-districts among the study areas. A total of 240 farmers were randomly selected (30 from each location) to collect the data with a pre-designed questionnaire. Farmer were grouped according to saline affected and not-affected for saline tolerant variety Binadhan-10 and not affected, affected (1 - 10 days) and highly affected (10 - 20 days) for submergence tolerant rice variety Binadhan-11 to identify existing yield gap. Tabular as well as Zandstra method were applied for analysis the data. The study also found factors affecting the gap and some policy guidelines to minimize the gap.

Keywords: Stress Tolerant, Saline Tolerant, Submergence Tolerant, Rice, Yield, Yield Gap

Location: Satkhira, Khulna, Barishal, and Cox’s Bazar

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Rice

Objectives:

To minimize the yield gaps and increase the productivity of the crops (rice) to feed the growing population of the country.

Methodology:

The study was conducted in eight District, Binadhan-10 & Binadhan-11 growing areas in Bangladesh. In this study four districts namely Satkhira, Khulna, Barishal, and Cox’s Bazar were used for Binadhan-10 and Mymensingh, Jamalpur, Sherpur and Sunamgonj were taken for Binadhan-11. It is based on primary level data from eight sub-districts among the study areas and there were 240 (30 from each location) randomly selected farmers to conduct the study. In the study, the concept of yield gap as suggested by Zandstra et al. (1981) was used. Total yield gap can be decomposed into two parts i.e. Yield gap I and Yield gap II. Yield Gap I refer to the difference between research station’s yield and potential farm yield obtained at demonstration plots, while Yield Gap II, reflecting the effects of biophysical and socio-economic constraints, was the difference between yield obtained at the nearest demonstration plot and actual yield obtained on farmers’ fields. The yield gaps were estimated as follows: where, Y_R is the research station yield, Y_D is the demonstration plot yield, and Y_F is the actual farm yield.

Source of Information: Agricultural Sciences, Vol.10 No.11(2019), Article ID:96439,15 pages

Article Link (Online Journal): 10.4236/as.2019.1011105

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Increasing yield as well as agricultural productivity is urgent for economic growth and development for any country in the world. The study found that in Bangladesh, we are losing 1.67 t ha⁻¹ (26.92%) yield of Binadhan-10 in Boro season and 1.52 t ha⁻¹ (29.76%) of Binadhan-11 in Aman season. If we could reduce these gaps, our total production per year will be increased by 3.19 t ha⁻¹ which will support in achieving food security as well as Sustainable Development Goals (SDGs).

Knowledge Management: Journal