The ideal cassava plant for maximum yield
A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then decr...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1979
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/88470 |
| _version_ | 1855529912680579072 |
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| author | Cock, James H. Franklin, D. Sandoval, G. Juri, P. |
| author_browse | Cock, James H. Franklin, D. Juri, P. Sandoval, G. |
| author_facet | Cock, James H. Franklin, D. Sandoval, G. Juri, P. |
| author_sort | Cock, James H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then decreased; the max was a varietal character. Leaf life was reduced by shading but in full daylight was determined by the var. Leaf formation rate/shoot apex showed little genetic vafiation and declined with time; large differences in leaf formation rate/plant were determined by differences in branching pattern. Top growth had preference over root growth, and root sink was not limiting when root no./plant was equal to or greater than 9. A computer program was written to implement a dynamic growth model, which suggests that high-yielding plants will branch late in life and possess large leaves and long leaf life. Potential yields of greater than 25 t/ha/yr dry roots are obtainable at 400-500 g cal (cm)-2 day radiation. (AS) |
| format | Journal Article |
| id | CGSpace88470 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1979 |
| publishDateRange | 1979 |
| publishDateSort | 1979 |
| record_format | dspace |
| spelling | CGSpace884702023-06-12T16:32:19Z The ideal cassava plant for maximum yield Cock, James H. Franklin, D. Sandoval, G. Juri, P. manihot esculenta branching growth leaf area leaves plant development plant physiological process productivity roots simulation models timing developmental stages physiology plant anatomy plant physiology research starch crops A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then decreased; the max was a varietal character. Leaf life was reduced by shading but in full daylight was determined by the var. Leaf formation rate/shoot apex showed little genetic vafiation and declined with time; large differences in leaf formation rate/plant were determined by differences in branching pattern. Top growth had preference over root growth, and root sink was not limiting when root no./plant was equal to or greater than 9. A computer program was written to implement a dynamic growth model, which suggests that high-yielding plants will branch late in life and possess large leaves and long leaf life. Potential yields of greater than 25 t/ha/yr dry roots are obtainable at 400-500 g cal (cm)-2 day radiation. (AS) 1979 2017-10-12T08:03:08Z 2017-10-12T08:03:08Z Journal Article https://hdl.handle.net/10568/88470 en Limited Access COCK, J.H.; FRANKLIN, D.; Sandoval, G.; JURI, P. 1979. The ideal cassava plant for maximum yield. Crop Science (USA). 19:271-279. |
| spellingShingle | manihot esculenta branching growth leaf area leaves plant development plant physiological process productivity roots simulation models timing developmental stages physiology plant anatomy plant physiology research starch crops Cock, James H. Franklin, D. Sandoval, G. Juri, P. The ideal cassava plant for maximum yield |
| title | The ideal cassava plant for maximum yield |
| title_full | The ideal cassava plant for maximum yield |
| title_fullStr | The ideal cassava plant for maximum yield |
| title_full_unstemmed | The ideal cassava plant for maximum yield |
| title_short | The ideal cassava plant for maximum yield |
| title_sort | ideal cassava plant for maximum yield |
| topic | manihot esculenta branching growth leaf area leaves plant development plant physiological process productivity roots simulation models timing developmental stages physiology plant anatomy plant physiology research starch crops |
| url | https://hdl.handle.net/10568/88470 |
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