| dc.contributor.author | Ekanayake, I.J. |
| dc.contributor.author | Lyasse, O. |
| dc.date.accessioned | 2019-12-04T11:23:49Z |
| dc.date.available | 2019-12-04T11:23:49Z |
| dc.date.issued | 2003 |
| dc.identifier.citation | Ekanayake, I.J. & Lyasse, O. (2003). Genotypic variations in physiological deterioration of cassava (Manihot esculenta Crantz) storage roots under inland valley conditions. Food, Agriculture and Environment, 1(2), 108-111. |
| dc.identifier.issn | 1459-0255 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/4171 |
| dc.description.abstract | Cassava (Manihot esculenta Crantz) is an important starchy food crop in the inland valley ecosystem areas in West Africa where harvesting and marketing
infrastructure is not optimal and postharvest losses are high. An attempt was therefore made to assess the genotypic variability of physiological deterioration
(PD) of storage roots obtained from plants grown under inland valley field conditions. Cassava storage roots showed rapid PD within 48 hours after
harvesting due to wounding related discoloration. After 6-months field growth under hydro-morphic conditions during the dry season, roots were harvested
and the root PD scores obtained visually at 24 and 48 h after was compared among 60 genotypes. The differences in root PD reaction between these
genotypes were highly significant (P<0.001) at 24 h after harvest. Genotypic differences in root PD (at 24 h after) were expressed more in the distal than
the proximal region of roots. At 48 h after harvest, however the genotypic differences became apparent only at proximal ends of roots. Location of the field
with respect to water regime significantly (P<0.001) affected the root PD response 24 h after harvest. Rapid PD test was appropriate to differentiate the
genotypic differences 24 and 48 h after root harvest. This study provides an early visual scoring method on cassava root quality and thereby aids to detect
a key part of postharvest deterioration losses incurred. |
| dc.language.iso | en |
| dc.subject | Cassava |
| dc.subject | Manihot Esculenta |
| dc.subject | Water Stress |
| dc.title | Genotypic variations in physiological deterioration of cassava (Manihot esculenta Crantz) storage roots under inland valley conditions |
| dc.type | Journal Article |
| dc.type | Journal Article |
| dc.description.version | Peer Review |
| cg.contributor.crp | Roots, Tubers and Bananas |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.coverage.region | Africa |
| cg.coverage.region | West Africa |
| cg.coverage.country | Nigeria |
| cg.authorship.types | CGIAR single centre |
| cg.iitasubject | Cassava |
| cg.accessibilitystatus | Limited Access |
| local.dspaceid | 99737 |
