Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.)
A topinambour collection was analyzed to determine the genetic variability of 141 accessions in reaction to the length of day (light), its influence on vegetative and flowering phases, tuber number and mass. Day length significantly influenced flowering, which started with the first shorter days...
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| Format: | Article |
| Language: | English |
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University of Belgrade, University of Novi Sad
2012-01-01
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| Series: | Archives of Biological Sciences |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-4664/2012/0354-46641201175T.pdf |
| _version_ | 1811300095966052352 |
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| author | Terzić S. Atlagić Jovanka Maksimović Ivana Zeremski Tijana Petrović Sofija Dedić B. |
| author_facet | Terzić S. Atlagić Jovanka Maksimović Ivana Zeremski Tijana Petrović Sofija Dedić B. |
| author_sort | Terzić S. |
| collection | DOAJ |
| description | A topinambour collection was analyzed to determine the genetic variability of 141 accessions in reaction to the length of day (light), its influence on vegetative and flowering phases, tuber number and mass. Day length significantly influenced flowering, which started with the first shorter days (15.6 h) in the third decade of June, while the majority of accessions flowered in the third decade of August (13.3 h). Differences between accessions were statistically significant for the analyzed phenotype traits. A significantly longer vegetative phase was found in Montenegrin accessions in comparison to the other groups of origin. Duration of the vegetative phase was significantly and positively correlated to tuber mass and negatively to their number, while duration of the reproductive phase had an opposite effect. For further work on topinambour breeding, it would be important to describe the mechanism of photoperiodic control of flowering initialization. Only by obtaining accessions neutral to the photoperiod could topinambour become a cultivated crop. |
| first_indexed | 2024-04-13T06:46:11Z |
| format | Article |
| id | doaj.art-f6733e3a686440afabd6a0c340ba9fae |
| institution | Directory Open Access Journal |
| issn | 0354-4664 1821-4339 |
| language | English |
| last_indexed | 2024-04-13T06:46:11Z |
| publishDate | 2012-01-01 |
| publisher | University of Belgrade, University of Novi Sad |
| record_format | Article |
| series | Archives of Biological Sciences |
| spelling | doaj.art-f6733e3a686440afabd6a0c340ba9fae2022-12-22T02:57:34ZengUniversity of Belgrade, University of Novi SadArchives of Biological Sciences0354-46641821-43392012-01-0164117518210.2298/ABS1201175AInfluence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.)Terzić S.Atlagić JovankaMaksimović IvanaZeremski TijanaPetrović SofijaDedić B.A topinambour collection was analyzed to determine the genetic variability of 141 accessions in reaction to the length of day (light), its influence on vegetative and flowering phases, tuber number and mass. Day length significantly influenced flowering, which started with the first shorter days (15.6 h) in the third decade of June, while the majority of accessions flowered in the third decade of August (13.3 h). Differences between accessions were statistically significant for the analyzed phenotype traits. A significantly longer vegetative phase was found in Montenegrin accessions in comparison to the other groups of origin. Duration of the vegetative phase was significantly and positively correlated to tuber mass and negatively to their number, while duration of the reproductive phase had an opposite effect. For further work on topinambour breeding, it would be important to describe the mechanism of photoperiodic control of flowering initialization. Only by obtaining accessions neutral to the photoperiod could topinambour become a cultivated crop.http://www.doiserbia.nb.rs/img/doi/0354-4664/2012/0354-46641201175T.pdfGenetic variabilityHelianthus tuberosusphotoperiodtubersvegetation phase |
| spellingShingle | Terzić S. Atlagić Jovanka Maksimović Ivana Zeremski Tijana Petrović Sofija Dedić B. Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) Archives of Biological Sciences Genetic variability Helianthus tuberosus photoperiod tubers vegetation phase |
| title | Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) |
| title_full | Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) |
| title_fullStr | Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) |
| title_full_unstemmed | Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) |
| title_short | Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.) |
| title_sort | influence of photoperiod on vegetation phases and tuber development in topinambour helianthus tuberosus l |
| topic | Genetic variability Helianthus tuberosus photoperiod tubers vegetation phase |
| url | http://www.doiserbia.nb.rs/img/doi/0354-4664/2012/0354-46641201175T.pdf |
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