Climate management in tomato greenhouse market gardens
An efficient climate management is essential to achieve a high production in tomato greenhouse market gardens. Temperature, especially, is very important since it has a large influence on both the vegetative and the generative growth. The main objective of the present study was to evaluate the effec...
| Autor principal: | |
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| Formato: | Otro |
| Lenguaje: | sueco Inglés |
| Publicado: |
2008
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/12570/ |
| _version_ | 1855572090797686784 |
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| author | Gustafsson, Anna Karin |
| author_browse | Gustafsson, Anna Karin |
| author_facet | Gustafsson, Anna Karin |
| author_sort | Gustafsson, Anna Karin |
| collection | Epsilon Archive for Student Projects |
| description | An efficient climate management is essential to achieve a high production in tomato greenhouse market gardens. Temperature, especially, is very important since it has a large influence on both the vegetative and the generative growth. The main objective of the present study was to evaluate the effect of low temperature pulses (LTP) on the fruit growth. The study was carried out both through a literature study and through an empirical study done in three commercial greenhouse market gardens growing tomato. During a ten week period in the spring of 2007 weekly growth, stem diameter, leaf length, length of truss peduncle, peduncle diameter, number of fruits per truss, fruit diameter and height, total number of fruit on the plants, amount of harvested fruit, and individual fruit weights were measured. Climatic data was gathered from PRIVA environmental computers, which were used in all three market gardens. Due to reluctance from the participating growers to use LTPs, and a lack of literature on the subject, the question of whether LTP has an effect on fruit growth remains unanswered. The effect of night temperature and average temperature was also included in the study. There were correlations between night temperature and the number of fruit; the R2 values were very low however, indicating that hardly any of the variation in the plant parameters can be explained by the night temperature. Lower average temperature lead to larger but fewer fruits, while a higher average temperature lead to slightly smaller first fruits, but a higher yield; this is confirmed in the literature. The harvest was closely related to the weekly average temperature where a high average temperature one week resulted in a high yield the following week. |
| format | Otro |
| id | RepoSLU12570 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| record_format | eprints |
| spelling | RepoSLU125702017-10-25T04:00:38Z https://stud.epsilon.slu.se/12570/ Climate management in tomato greenhouse market gardens Gustafsson, Anna Karin Horticulture (until 121231) Landscape architecture An efficient climate management is essential to achieve a high production in tomato greenhouse market gardens. Temperature, especially, is very important since it has a large influence on both the vegetative and the generative growth. The main objective of the present study was to evaluate the effect of low temperature pulses (LTP) on the fruit growth. The study was carried out both through a literature study and through an empirical study done in three commercial greenhouse market gardens growing tomato. During a ten week period in the spring of 2007 weekly growth, stem diameter, leaf length, length of truss peduncle, peduncle diameter, number of fruits per truss, fruit diameter and height, total number of fruit on the plants, amount of harvested fruit, and individual fruit weights were measured. Climatic data was gathered from PRIVA environmental computers, which were used in all three market gardens. Due to reluctance from the participating growers to use LTPs, and a lack of literature on the subject, the question of whether LTP has an effect on fruit growth remains unanswered. The effect of night temperature and average temperature was also included in the study. There were correlations between night temperature and the number of fruit; the R2 values were very low however, indicating that hardly any of the variation in the plant parameters can be explained by the night temperature. Lower average temperature lead to larger but fewer fruits, while a higher average temperature lead to slightly smaller first fruits, but a higher yield; this is confirmed in the literature. The harvest was closely related to the weekly average temperature where a high average temperature one week resulted in a high yield the following week. En effektiv klimatstyrning är grundläggande för att uppnå en hög produktion i tomatväxthus. Särskilt temperaturstyrning är viktigt då temperaturen har en stor inverkan på både den vegetativa och den generative tillväxten av plantorna. Den huvudsakliga målsättningen med examensarbetet var att undersöka effekten av lågtemperaturpulser (LTP) på fruktutvecklingen. Studien omfattade både en litteraturstudie och en empirisk studie som utfördes hos tre tomatodlare i södra Sverige. Under en tioveckorsperiod våren 2007 mättes stamtillväxt, stamdiameter, bladlängd, klasstjälkslängd, klasstjälkdiameter, antal frukter per klase, fruktdiameter och –höjd, totalt antal frukter på plantan, skördemängd och individuella fruktvikter. Klimatdata samlades in från PRIVA klimatdatorer; ett system som alla tre odlarna använde sig av. På grund av odlarnas tveksamheter att använda LTP, samt bristen på relevant litteratur i ämnet, gjorde att frågan om huruvida LTP har en effekt på fruktutvecklingen förblir obesvarad. Effekten av nattemperatur samt medeltemperatur var också innefattat i studien. Det fanns korrelationer mellan nattemperatur och antalet frukter på plantorna; R2 värdena var däremot så låga att i stort sett inga av variationerna i växtparametrarna kan förklaras av förändringar i nattemperaturen. Låg medeltemperatur ledde till stora men färre frukter, medans en högre medeltemperatur ledde till något mindre frukter men en totalt högre skörd; dessa resultat bekräftas i litteraturen. Skörden var nära förknippad med medeltemperaturen: en hög medeltemperatur under en vecka ledde till en hög skörd veckan därpå. 2008-04-02 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/12570/1/gustafsson_a_171024.pdf Gustafsson, Anna Karin, 2008. Climate management in tomato greenhouse market gardens : application and evaluation. UNSPECIFIED, Alnarp. Alnarp: (NL, NJ) > Horticulture <https://stud.epsilon.slu.se/view/divisions/ANSTI=3A1600.html> urn:nbn:se:slu:epsilon-s-8237 eng |
| spellingShingle | Horticulture (until 121231) Landscape architecture Gustafsson, Anna Karin Climate management in tomato greenhouse market gardens |
| title | Climate management in tomato greenhouse market gardens |
| title_full | Climate management in tomato greenhouse market gardens |
| title_fullStr | Climate management in tomato greenhouse market gardens |
| title_full_unstemmed | Climate management in tomato greenhouse market gardens |
| title_short | Climate management in tomato greenhouse market gardens |
| title_sort | climate management in tomato greenhouse market gardens |
| topic | Horticulture (until 121231) Landscape architecture |
| url | https://stud.epsilon.slu.se/12570/ https://stud.epsilon.slu.se/12570/ |