Development and Ergonomic Assessment of Manually Operated Modified Linseed Crop Thresher for Studying the Physical Properties of the Linseed Seed

The study took place at SHUATS, Prayagraj (U.P), India, 210203. Studying the physical properties of linseed were studied for two varieties SHUATS Alsi-2 and Neelam, with moisture contents (d.b) of 7.473%, 10.786%, and 14.03%. The average number of capsules per plant was found to be 36.88. The average number of seeds per capsule was found to be 8.12. Linseed's length, width, and thickness were measured to be 8.11, 6.94, and 6.87 mm, respectively. The geometric mean diameter was measured at 7.288 mm. The linear dimensions of the seed were discovered to be an average of 5.308mm, width 2.507mm, and thickness 0.964mm for the SHUATS Alsi-2 variety, and an average of 5.214mm, width 2.448mm, and thickness 0.903 for the Neelam variety. The SHUATS Alsi-2 variety had an average AMD of 2.924mm and a GMD of 2.338mm, whereas the Neelam variety had an average AMD of 2.855mm and a GMD of 2.258mm. The average surface area, sphericity, and volume for the SHUATS Alsi-2 variety were 17.218mm2, 0.441, and 6.741mm3, respectively, whereas the average surface area, sphericity, and volume for the Neelam variety were 16.0403mm2, 0.433, and 6.047mm3. It was also discovered that the mean 7.656gram 1000 grain weight for the linseed variety in SHUATS Alsi-2 and the mean 8.0153gram 1000 grain weight for the linseed variety in Neelam were different. The SHUATS Alsi-2 variety had an average bulk density of 626.64 kg/m3, a true density of 1139.553 kg/m3, and a porosity of 44.847, whereas the Neelam variety had an average bulk density of 673.354 kg/m3, a true density of 1126.174 kg/m3, and a porosity of 40.135.