Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis
Two contrasting clones of cassava (Manihot esculenta) were reciprocally grafted to test the hypothesis that the yield of cassava is limited by the number of storage roots. Effects of the root sink on leaf gas exchange were also tested under field conditions using a portable infra-red gas analyzer. S...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Cambridge University Press
1994
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44105 |
| _version_ | 1855543349735325696 |
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| author | Pellet, D El-Sharkawy, Mabrouk A. |
| author_browse | El-Sharkawy, Mabrouk A. Pellet, D |
| author_facet | Pellet, D El-Sharkawy, Mabrouk A. |
| author_sort | Pellet, D |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Two contrasting clones of cassava (Manihot esculenta) were reciprocally grafted to test the hypothesis that the yield of cassava is limited by the number of storage roots. Effects of the root sink on leaf gas exchange were also tested under field conditions using a portable infra-red gas analyzer. Storage root number and root yield were affected by stock size and root yield was associated with the number of storage roots. The harvest index and sink-source ratio (root numberz/leaf area index) were correlated with root number. A feedback effect of root number on single-leaf photosynthesis was observed in one clone. It is concluded that the number of storage roots may be used as an indicator of sink strength. |
| format | Journal Article |
| id | CGSpace44105 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1994 |
| publishDateRange | 1994 |
| publishDateSort | 1994 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace441052024-11-15T08:53:14Z Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis Pellet, D El-Sharkawy, Mabrouk A. manihot esculenta grafting roots dry matter content leaf area photosynthesis gas exchange injerto raíces contenido de materia seca superficie foliar fotosíntesis intercambio de gases Two contrasting clones of cassava (Manihot esculenta) were reciprocally grafted to test the hypothesis that the yield of cassava is limited by the number of storage roots. Effects of the root sink on leaf gas exchange were also tested under field conditions using a portable infra-red gas analyzer. Storage root number and root yield were affected by stock size and root yield was associated with the number of storage roots. The harvest index and sink-source ratio (root numberz/leaf area index) were correlated with root number. A feedback effect of root number on single-leaf photosynthesis was observed in one clone. It is concluded that the number of storage roots may be used as an indicator of sink strength. 1994-07 2014-10-02T08:33:15Z 2014-10-02T08:33:15Z Journal Article https://hdl.handle.net/10568/44105 en Limited Access Cambridge University Press |
| spellingShingle | manihot esculenta grafting roots dry matter content leaf area photosynthesis gas exchange injerto raíces contenido de materia seca superficie foliar fotosíntesis intercambio de gases Pellet, D El-Sharkawy, Mabrouk A. Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title | Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title_full | Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title_fullStr | Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title_full_unstemmed | Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title_short | Sink-source relations in cassava: Effects of reciprocal grafting on yield and leaf photosynthesis |
| title_sort | sink source relations in cassava effects of reciprocal grafting on yield and leaf photosynthesis |
| topic | manihot esculenta grafting roots dry matter content leaf area photosynthesis gas exchange injerto raíces contenido de materia seca superficie foliar fotosíntesis intercambio de gases |
| url | https://hdl.handle.net/10568/44105 |
| work_keys_str_mv | AT pelletd sinksourcerelationsincassavaeffectsofreciprocalgraftingonyieldandleafphotosynthesis AT elsharkawymabrouka sinksourcerelationsincassavaeffectsofreciprocalgraftingonyieldandleafphotosynthesis |