Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria
Twenty-one yellow-fleshed cassava genotypes were evaluated over two years in five major cassava growing agroecological zones in Nigeria. The trials were established in a randomized complete block design with four replications to assess genotype performance and Genotype × Environment interaction for...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2012/434675 |
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| author | Norbert G. Maroya Peter Kulakow Alfred G. O. Dixon Busie B. Maziya-Dixon |
| author_facet | Norbert G. Maroya Peter Kulakow Alfred G. O. Dixon Busie B. Maziya-Dixon |
| author_sort | Norbert G. Maroya |
| collection | DOAJ |
| description | Twenty-one yellow-fleshed cassava genotypes were evaluated over two years in five major cassava growing agroecological zones in Nigeria. The trials were established in a randomized complete block design with four replications to assess genotype performance and Genotype × Environment interaction for cassava mosaic disease (CMD), fresh and dry root yield (FYLD; DYLD), root dry matter content (DMC), and total carotene concentration (TCC). Combined analysis of variance showed significant differences (P<0.001) among genotypes (G), environment (E), and Genotype × Environment interaction (GE) for all the traits tested. For reaction to CMD, the best genotypes showing stable resistance were TMS 07/0539 and TMS 07/0628. For root yield, the best genotypes were TMS 01/1368 and TMS 07/0553. Genotype TMS 07/0593 was the best for DMC and TCC across the 10 environments. Variation among genotypes accounted for most of the Total Sum of Squares for CMD (72.1%) and TCC (34.4%). Environmental variation accounted for most of the Total Sum of Squares for FYLD (42.8%), DYLD (39.6%), and DMC (29.2%). This study revealed that TMS 07/0593 has the highest and most stable TCC, DMC with the lowest CMD severity score and appeared to be the best genotype. |
| format | Article |
| id | doaj-art-5368de95009e4958a5f2374a957c0e9d |
| institution | Kabale University |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Agronomy |
| spelling | doaj-art-5368de95009e4958a5f2374a957c0e9d2025-02-03T01:32:58ZengWileyInternational Journal of Agronomy1687-81591687-81672012-01-01201210.1155/2012/434675434675Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in NigeriaNorbert G. Maroya0Peter Kulakow1Alfred G. O. Dixon2Busie B. Maziya-Dixon3International Institute of Tropical Agriculture, Cassava Breeding Program, PMB, Oyo State, Ibadan 5320, NigeriaInternational Institute of Tropical Agriculture, Cassava Breeding Program, PMB, Oyo State, Ibadan 5320, NigeriaSierra Leone Agricultural Research Institute, General Directorate, PMB, Freetown 1313, Sierra LeoneInternational Institute of Tropical Agriculture, Cassava Breeding Program, PMB, Oyo State, Ibadan 5320, NigeriaTwenty-one yellow-fleshed cassava genotypes were evaluated over two years in five major cassava growing agroecological zones in Nigeria. The trials were established in a randomized complete block design with four replications to assess genotype performance and Genotype × Environment interaction for cassava mosaic disease (CMD), fresh and dry root yield (FYLD; DYLD), root dry matter content (DMC), and total carotene concentration (TCC). Combined analysis of variance showed significant differences (P<0.001) among genotypes (G), environment (E), and Genotype × Environment interaction (GE) for all the traits tested. For reaction to CMD, the best genotypes showing stable resistance were TMS 07/0539 and TMS 07/0628. For root yield, the best genotypes were TMS 01/1368 and TMS 07/0553. Genotype TMS 07/0593 was the best for DMC and TCC across the 10 environments. Variation among genotypes accounted for most of the Total Sum of Squares for CMD (72.1%) and TCC (34.4%). Environmental variation accounted for most of the Total Sum of Squares for FYLD (42.8%), DYLD (39.6%), and DMC (29.2%). This study revealed that TMS 07/0593 has the highest and most stable TCC, DMC with the lowest CMD severity score and appeared to be the best genotype.http://dx.doi.org/10.1155/2012/434675 |
| spellingShingle | Norbert G. Maroya Peter Kulakow Alfred G. O. Dixon Busie B. Maziya-Dixon Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria International Journal of Agronomy |
| title | Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria |
| title_full | Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria |
| title_fullStr | Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria |
| title_full_unstemmed | Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria |
| title_short | Genotype × Environment Interaction of Mosaic Disease, Root Yields and Total Carotene Concentration of Yellow-Fleshed Cassava in Nigeria |
| title_sort | genotype environment interaction of mosaic disease root yields and total carotene concentration of yellow fleshed cassava in nigeria |
| url | http://dx.doi.org/10.1155/2012/434675 |
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