Temperature and photoperiod effects on growth and development of day-neutral, junebearing and everbearing strawberries
| dc.contributor.author | Durner, Edward Francis | en |
| dc.contributor.department | Horticulture | en |
| dc.date.accessioned | 2019-01-31T17:50:24Z | en |
| dc.date.available | 2019-01-31T17:50:24Z | en |
| dc.date.issued | 1982 | en |
| dc.description.abstract | Responses of day-neutral (DN) strawberries (Fragaria X ananassa Duch.) to photoperiod and temperature under controlled environment conditions were studied and compared to those of Junebearers (JB) and everbearers (EB). At a constant 21°C, DN cultivars flowered under 9 hour days (SD), night interrupted SD (NI) and 16 hour days (LD). Runner production occurred under NI and LD but not SD. Net photosynthesis (Pn) expressed on a leaf area basis, tended to be higher for DN than JB or EB. Pn on a whole plant basis, was greater under NI than SD due to increased leaf area under NI. Pn under LD was not considered. Under fluctuating temperatures (18°/14°, 22°/18°, 26°/22° or 30°/26° C day/night combinations), responses to SD and NI varied. At 18/14, DN cultivars flowered under either NI or SD. At 22/18 and 26/22, flowering was greater under NI than SD. At 30/26, flowering did not occur. At 18/14, 22/18, or 30/26, runner production was unaffected by photoperiod and occurred under NI and SD. At 26/22, runner production was enhanced by NI compared to SD. Data for the Junebearers and everbearers is also presented and discussed. | en |
| dc.description.degree | Master of Science | en |
| dc.format.extent | viii, 107, [2] leaves | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.uri | http://hdl.handle.net/10919/87106 | en |
| dc.language.iso | en_US | en |
| dc.publisher | Virginia Polytechnic Institute and State University | en |
| dc.relation.isformatof | OCLC# 9421368 | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.lcc | LD5655.V855 1982.D876 | en |
| dc.subject.lcsh | Strawberries | en |
| dc.subject.lcsh | Photoperiodism | en |
| dc.subject.lcsh | Plants -- Effect of light on | en |
| dc.subject.lcsh | Plants -- Effect of temperature on | en |
| dc.title | Temperature and photoperiod effects on growth and development of day-neutral, junebearing and everbearing strawberries | en |
| dc.type | Thesis | en |
| dc.type.dcmitype | Text | en |
| thesis.degree.discipline | Horticulture | en |
| thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
| thesis.degree.level | masters | en |
| thesis.degree.name | Master of Science | en |
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