Mechanical damage for local design machine on maize cultivars of 106 and 3001

The effect of rotational speed in shelling machine (LMS type) on maize cultivars of Ebaa (106) and Ebaa (3001) were tested during shelling at three speed of 400,500and 600rpm . The experiments were carried out in a factorial experiment under complete randomized design with three replications. The results showed that the 106 cultivar wassignificantly better than the 3001 in all studied conditions. The results showed a shelling productivity of 1.616 and 1.431 th, shelling efficiency of 84.704% and 83.296%,unshelled grains of 1.314 and1.430% ,loose grains at kernel outlet of 1.308 and 1.468 %, grains damage of 1.847 and 1.990% and grain cleanliness of 88.260 and 86.765 % broken maize of 4.298 % and 5.268 % and cracked grain percentage of 3.163 % and 3.501 %, for Ebaa 106 and Ebaa 3001, respectively. The rotational speed of 400 was significantly superior to the levels of 500 and 600 rpm in all studied conditions.

Keywords:

Maize , rotational speed , Ebaa 106 and Ebaa 3001 cultivars , thresher