Physical and mechanical properties such as mass, height of plantlet, pseudostem height from tray to first leaf, pseudostem diameter between root plug and first leaf, root plug dimension, moisture content of root plug, pulling force, and compression resistance are required to design a mechanical transplanting mechanism for tissue culture banana plantlets.
Between August and December 2019, students will study in the Department of Farm Machinery and Power Engineering, AEC&RI, Kumulur, the Department of Farm Machinery and Power Engineering, AEC&RI, Coimbatore, and the Post-Harvest Technology Centre, Coimbatore.
Physical and mechanical features of three local kinds utilised by farmers to cultivate tissue culture bananas, namely 'Grand Naine-G9' (AAA), 'Red Banana' (AAA), and 'Nendran' (BAA), were investigated.
Results: 'G9,' 'Red Banana,' and 'Nendran' had mass of 120.512.3, 117.2 9.0, and 113.59.0 g and heights of 379.321.72, 360.26.23, and 467.613.06 mm, respectively. The pseudostem diameter at the root plug was 10.7 1.0, 10.2 0.8, and 10.9 1.4 mm. The lowest height of the pseudostem until the first leaf was 37.14.3 mm for the 'Red' variety, and the highest was 102.12.3 mm for the 'Nendran' variety. The pulling power was found to be 4.962, 4.971.1, and 5.051.6 N for three kinds, with minimal variation between them. For 'G9,' 'Red,' and 'Nendran,' the lowest compressive resistance is 47.16 3.08, 46.42 5.43, and 38.55 1.86 N at the base, and 44.07 2.55, 37.89 6.6, and 32.36 1.58 N at 25 mm above root plug, respectively.Conclusion: The highest plantlet weight for the 'G9' variety was 132.8 mm, while the plantlet height for the 'Nendran' variety was 480 mm. For the 'Red' variety, the minimum height of the pseudostem until the first leaf was 31 mm, and the picking gripper height should be less than 30 mm. The plantlet should be removed from the pro-tray with a minimum pulling force of 7 N, and the gripper should not apply more than 30 N to retain the plantlet on the pseudostem.
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