Moisture Dependent Selected Engineering Properties of Deenanath Seeds in Relation to Development of Processing Machinery


  • Sanjay Kumar Singh Division of Farm Machinery and Post Harvest Technology, ICAR - IGFRI, Jhansi, India Author
  • Sheshrao Kautkar Scientist, ICAR- CIRCOT, Mumbai, India Author
  • P. K. Pathak Principal Scientist and Head, ICAR - IGFRI, Jhansi, India Author
  • Bholuram Gurjar Scientist, Division of Farm Machinery and Post Harvest Technology, ICAR - IGFRI, Jhansi, India Author
  • Sunil Swami Scientist, Division of Seed Technology, ICAR - IGFRI, Jhansi, India; Author
  • Prabhu Govindasamy Scientist, Division of Crop Production, ICAR - IGFRI, Jhansi, India Author



Deenanath grass seed, physical properties, moisture content


Propagation of grasses through seeds is important in view of vigour and germination. Various grasses as Pennisetum pedicellatum Trin., Cenchrus ciliaris L., Chrysopogan fulvus have lower vigour and germination, due to which they need specific operations as defluffing, separation of true seeds, cleaning and grading by specific machines. In designing a machine for a specific use, physical properties and their behaviour with moisture play an important role. A study was conducted to assess the effect of moisture content at five levels [6.88 - 19.23 %, (d.b.)] on selected physical properties of defluffed Deenanath grass seed. The length, width, thickness, arithmetic mean diameter, and geometric mean diameter of defluffed Deenanath seed increased from 2.30 mm to 2.56 mm, 0.71 mm to 0.96 mm, 0.47 mm to 0.63 mm, 1.16 mm to 1.38 mm, and 0.90 mm to 1.15 mm, respectively, with increase in moisture content 6.88 % to 19.23 %. Bulk density, true density, and porosity decreased from 652.16 kg.m-3 to 585.78 kg.m-3, 852.63 kg.m-3 to 792.71 kg.m-3, and 25.62 % to 24.97 %, respectively, with increase in moisture content from 6.88 % to 19.23 per cent. The aspect ratio, sphericity, surface area, volume, and thousand-seed mass of the seed were in the range of 30.91 - 37.51 %, 0.39 - 0.45, 2.58 - 3.23 mm2, 3.71 - 4.97 mm3, and 0.480 - 0.523 g, respectively. Linear relationships with correlation coefficients higher than 0.90 were observed for the physical properties over the experimental range of moisture content.


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How to Cite

Sanjay Kumar Singh, Sheshrao Kautkar, P. K. Pathak, Bholuram Gurjar, Sunil Swami, & Prabhu Govindasamy. (2023). Moisture Dependent Selected Engineering Properties of Deenanath Seeds in Relation to Development of Processing Machinery. Journal of Agricultural Engineering (India), 58(3), 250-261.