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vol. 2, nr. 1 (2003)


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Observations on the characteristics of the strength of pea grains
Jan Jech1, Stanisław Sosnowski2, Josef Artim1
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1 Department of Machines and Production Systems, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republik
2 School of Engineering and Economics, 39-100 Ropczyce, ul. Mickiewicza 10, Poland

vol. 2 (2003), nr. 1, pp. 83-92
abstract: Observation of the dynamic strength of pea grains of 9.7% moisture content was considered. Grains were struck by a spinning jib with a circumferential speed from 0 to 12 m s-1. The influence on the damage and germinating capacity of the weight of the individual grains, the direction of the strike on the grain, the design of the striking plate and the repeated striking on the grains investigated was observed. Pea grains damaged while growing were tested. An increase in the 'strike' speed on the grain to above 6 m s-1 markedly increased grain damage and decreased germinating capacity. Grains of medium weight have the best germinating capacity. Grains which have been damaged in the growing process have about a 6.7% lower germination capacity in relation to undamaged ones. No differences in damage were apparent on the cotyledon, radicle or plumule of the pea grain solely on account of the direction of the strike; however the design of the striking plate does have an influence on grain damage.
keywords: pea, dynamic strength of grains, damage of grains, germinating capacity
original in: English