Asian Journal of Crop, Soil Science and Plant Nutrition

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Asian J. Crop. Soil Plan. Nutri. | Volume 06, Issue 02, 242-250 | https://doi.org/10.18801/ajcsp.060222.29
​Article type: Research article | Received: 12.12.2021; Revised: 30.01.2022; First published online: 20 March, 2022.

Grain physical properties analysis of some improved rice varieties

Nazmul Hoque 1, Mohammad Zahidul Islam 2, Farzana Rahman 1, Nadim Mahmud 1, Mahfuzur Rahman 1 and Bishal Biswas 1
1 Department of Agriculture, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj - 8100, Bangladesh.
2 Bangladesh Rice Research Institute, Regional Station Gopalganj - 8100, Bangladesh.
 
✉ Article correspondence: shikshatoroo@gmail.com  (Hoque, N).
Abstract
Physical characteristics of rice grains from eight Boro rice varieties (BRRIdhan50, BRRIdhan63, BRRIdhan74, BRRIdhan84, BRRIdhan88, BRRIdhan89, BRRI dhan96 and BRRI dhan100) were investigated in September 2021, with completely randomized design including three replications in the Department of Agriculture's laboratory at Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalganj. The grain's physical dimensions (length, width, thickness and equivalent diameter) were determined, as well as its grain surface area, sphericity, aspect ratio, volume, bulk density, solid density, porosity and 1000 grain weight. The physical characteristics of the rice varieties differed significantly, according to the findings. The rice grains were extra-long in length, with a length-to-width ratio of 3.18 to 6.20. BRRIdhan100 had the lowest mean value for grain length (8.05 mm), thickness (1.55 mm), equivalent diameter (2.97 mm), surface area (25.23 mm2), volume (10.77 mm3), solid density (0.62 g/cm3), porosity (22.95%) and 1000 grain weight among the eight rice varieties (15.33 g). In contrast, BRRIdhan74 had the highest grain width (2.87 mm), thickness (1.95 mm), equivalent diameter (3.75 mm), surface area (58.01 mm2), aspect ratio (0.31), volume (37.39 mm3) and 1000 grain weight (30.33 g). Pearson correlation revealed the highest positive significant correlation of grain width with thickness, equivalent diameter, grain surface area, sphericity, aspect ratio, volume, bulk density, solid density, porosity, and 1000 grain weight, ranging from r = 0.791 to r = 0.980 (at p ≤ 0.05 and p≤ 0.01). Surface area, sphericity, aspect ratio and bulk density all had positive significant correlations (at p ≤0.01) with grain thickness, with correlation values ranging from r = 0.909 to r = 0.962. Physical dimensions of rice grains had a positive significant relationship with other physical properties of grains. The findings of this study will be useful in rice breeding to improve grain quality, as well as in designing postharvest processing and storage facilities based on varietal differences in rice varieties.
 
Key Words:  Correlation, Grain, Physical properties, Rice and Quality.
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MLA
Hoque, N. et al. “Grain physical properties analysis of some improved rice varieties”. Asian Journal of Crop, Soil Science and Plant Nutrition, 06(02), (2022): 242-250.
 
APA
Hoque, N., Islam, M. Z., Rahman, F., Mahmud, N., Rahman, M. and Biswas, B. (2022). Grain physical properties analysis of some improved rice varieties. Asian Journal of Crop, Soil Science and Plant Nutrition, 06(02), 242-250.
 
Chicago
Hoque, N., Islam, M. Z., Rahman, F., Mahmud, N., Rahman, M. and Biswas, B. “Grain physical properties analysis of some improved rice varieties”. Asian Journal of Crop, Soil Science and Plant Nutrition, 06(02), (2022): 242-250.
 
Harvard
Hoque, N., Islam, M. Z., Rahman, F., Mahmud, N., Rahman, M. and Biswas, B. 2022. Grain physical properties analysis of some improved rice varieties. Asian Journal of Crop, Soil Science and Plant Nutrition, 06(02), pp. 242-250.
 
Vancouver
Hoque, N, Islam, M. Z, Rahman, F, Mahmud, N, Rahman, M and Biswas, B. Grain physical properties analysis of some improved rice varieties. Asian Journal of Crop, Soil Science and Plant Nutrition, March 2022 06(02), 242-250.
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