Characteristics of high yielding cassava varieties
Forty different cultivars of cassava were grown in unreplicated plots at a plant population of 20,000 plants/ha in fertile soil. Harvests were taken at 4, 6, 8, 10 and 12 mo after planting 18 varieties. The characteristics of the 2 highest yielding varieties, M Colombia 113 (66 tons/ha) and M Colomb...
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
1976
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| Acceso en línea: | https://hdl.handle.net/10568/88330 |
| _version_ | 1855522353651384320 |
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| author | Cock, James H. |
| author_browse | Cock, James H. |
| author_facet | Cock, James H. |
| author_sort | Cock, James H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Forty different cultivars of cassava were grown in unreplicated plots at a plant population of 20,000 plants/ha in fertile soil. Harvests were taken at 4, 6, 8, 10 and 12 mo after planting 18 varieties. The characteristics of the 2 highest yielding varieties, M Colombia 113 (66 tons/ha) and M Colombia 22 (32 tons/ha), were compared with the other types. M Colombia 22 is an early maturing type (25 tons/ha after 6 months) with a very high harvest index; M Colombia113 yields little better than average 6 mo after planting. High yield is associated with a balance between leaf and root production, so that leaf area index does not decline excessively in the later growth stages. Changing canopy structure is unlikely to increase yields. (AS) |
| format | Journal Article |
| id | CGSpace88330 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1976 |
| publishDateRange | 1976 |
| publishDateSort | 1976 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace883302024-11-15T08:52:22Z Characteristics of high yielding cassava varieties Cock, James H. cultivars dry matter field experiments growth leaf area manihot esculenta root productivity starch content sugar content timing carbohydrate content composition manihot physiology plant development plant physiology productivity research starch crops Forty different cultivars of cassava were grown in unreplicated plots at a plant population of 20,000 plants/ha in fertile soil. Harvests were taken at 4, 6, 8, 10 and 12 mo after planting 18 varieties. The characteristics of the 2 highest yielding varieties, M Colombia 113 (66 tons/ha) and M Colombia 22 (32 tons/ha), were compared with the other types. M Colombia 22 is an early maturing type (25 tons/ha after 6 months) with a very high harvest index; M Colombia113 yields little better than average 6 mo after planting. High yield is associated with a balance between leaf and root production, so that leaf area index does not decline excessively in the later growth stages. Changing canopy structure is unlikely to increase yields. (AS) 1976-04 2017-10-12T08:02:18Z 2017-10-12T08:02:18Z Journal Article https://hdl.handle.net/10568/88330 en Limited Access Cambridge University Press COCK, J.H. 1976. Characteristics of high yielding cassava varieties. Experimental Agriculture. 12(2):135-143. |
| spellingShingle | cultivars dry matter field experiments growth leaf area manihot esculenta root productivity starch content sugar content timing carbohydrate content composition manihot physiology plant development plant physiology productivity research starch crops Cock, James H. Characteristics of high yielding cassava varieties |
| title | Characteristics of high yielding cassava varieties |
| title_full | Characteristics of high yielding cassava varieties |
| title_fullStr | Characteristics of high yielding cassava varieties |
| title_full_unstemmed | Characteristics of high yielding cassava varieties |
| title_short | Characteristics of high yielding cassava varieties |
| title_sort | characteristics of high yielding cassava varieties |
| topic | cultivars dry matter field experiments growth leaf area manihot esculenta root productivity starch content sugar content timing carbohydrate content composition manihot physiology plant development plant physiology productivity research starch crops |
| url | https://hdl.handle.net/10568/88330 |
| work_keys_str_mv | AT cockjamesh characteristicsofhighyieldingcassavavarieties |