JavaScript is disabled for your browser. Some features of this site may not work without it.
| dc.contributor.author | Mulualem, Anmut | |
| dc.date.accessioned | 2020-03-11T08:19:39Z | |
| dc.date.available | 2020-03-11T08:19:39Z | |
| dc.date.issued | 2020-03-11 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/10179 | |
| dc.description.abstract | Maize is one of the most important staple cereals in Ethiopia. One of the challenges for maize production in the country is lack of appropriate technologies for post-harvest handling of the crop. Particularly, the storage loss associated to stored product insects is a threat to food security of small holder farmers relying on maize production. Therefore, objective of this study was to evaluate the effectiveness of different storage strategies for the protection of stored maize grain from insect under farmers‘ conditions. The experiment was conducted in farmers‘ houses for 6-months and included six storage methods such as 1) Gotta with filter cake (FC+GOTTA),2) Gotta with polyethylene sheet lining(GOTTA+PE),3) Gotta without any treatment (farmers‘ practice),4) polypropylene bags (PPB) with polyethylene sheet lining(PPB+PE), 5) polypropylene bag without polyethylene sheet lining (farmers‘ practice) 6) Perdue improved storage bag (PICS) (positive control). Data on thousand kernel weight (TKW), bulk density, moisture, starch, protein, oil, total ash, insect count, % grain damage, % weight loss, and % germination were collected at outset of the experiment, three months after storage and six months after storage. Moisture in FC+GOTTA was decreased from 13.3 % to 11.8 % at the end of storage. Bulk density was decreased from 784.2kgm3 to 744.7 kgm-3 in PPB bag and from 789.5kgm-3 to 741.8kgm-3 in GOTTA during the storage period. Mean germination of maize grain from farmers‘ storage practices was 71% while over 95% of germination was recorded in FC+GOTTA, PE+GOTTA and PICS. Insect counts recorded in FC+GOTTA, PE+GOTTA and PICS were very low while farmers‘ storage practices exhibited rapid increases of in insect population. Mean values of counts of live weevils were 78 weevil kg-1 in GOTTA and 62 weevil kg-1 in PPB bag, 19 weevil kg-1 in PPB+PE, 4 weevil kg-1in PICS, 2 weevil kg-1 in GOTTA+PE, and 0 weevil kg-1 in FC+GOTTA. Moreover, mean values of grain damage were 21% in GOTTA, 13% in PPB bags, 0.7% in PE+PPB, 0.4% in PICS, 0.4% in PE+GOTTA and 0.0% in FC+GOTA. In this study, 2.7% of loss in GOTTA and 1.75% loss in PPB was recorded at the end of 6-months storage. Lower mean values of percentage of grain damage and weight loss were observed in PICS, FC+GOTTA, GOTTA+PE compared to PPB bags and GOTTA. Hence, they are more effective storage strategies that I recommended them for use by small scale-farmers. Hence storing maize using PICS, PE+GOTTA, FC+GOTTA should be promoted for reduce grain damage and loss without use of synthetic chemicals. | en_US |
| dc.language.iso | en | en_US |
| dc.subject | food technology | en_US |
| dc.title | EFFECTIVENESS OF POLYETHYLENE SHEET LINING AND FILTER CAKE APPLICATION IN GOTTA AND POLYPROPYLENE BAG FOR THE PROTECTION OF STORED MAIZE FROM INSECT | en_US |
| dc.type | Thesis | en_US |
