Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes
This study was done to evaluate different nonlinear regression models to describe the response of germination rate and to determinate the cardinal temperature of four ecotypes of Cuminum cyminum(Cumin) seeds. This experiment was arranged in the form of three-factor factorial completely randomized de...
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Seed and Plant Certification and Registration Institute
2017-05-01
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| Series: | علوم و فناوری بذر ایران |
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| Online Access: | https://ijsst.areeo.ac.ir/article_113217_0e80112ba7d8002fc4bd885c2ae2157e.pdf |
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| author | M. Habibzadeh Zarandi I. Allahdadi H. Khalaj M.R. Labbafi |
| author_facet | M. Habibzadeh Zarandi I. Allahdadi H. Khalaj M.R. Labbafi |
| author_sort | M. Habibzadeh Zarandi |
| collection | DOAJ |
| description | This study was done to evaluate different nonlinear regression models to describe the response of germination rate and to determinate the cardinal temperature of four ecotypes of Cuminum cyminum(Cumin) seeds. This experiment was arranged in the form of three-factor factorial completely randomized design with 4 replications at the Agronomy Laboratory (Aburaihan College, University of Tehran) in 2011.The seeds were treated with different temperatures (0, 5, 15, 25, 35 and 45 oc) and the germination rate were calculated. The result showed that the temperature had a significant effect on germination rate of all plants. The segmented model was superior compared to other models in ecotypes of cumin since the minimum amount of AICc and maximum value of Adj R2 were related to this model. Base (Tb), optimum (To) and ceiling (Tc) temperatures were predicted with appropriate models. Tb, To, and Tc for Khorasani ecotype were 0, 11.4, 25 °C; for Krmani ecotype were 0, 11.5, 28.9 °C, for Jandaghi ecotype were 3.1, 9.6, 27.1 °C and for Esfahan ecotype 0, 10.1, 35.5 °C, respectively. It was concluded that this model can be used to quantify response of cumin seed germination to temperature and to obtain the proper cardinal temperatures of germination. |
| format | Article |
| id | doaj-art-d4495a993a59417c8b191e8bc3408d1b |
| institution | Kabale University |
| issn | 2322-2646 2588-4638 |
| language | fas |
| publishDate | 2017-05-01 |
| publisher | Seed and Plant Certification and Registration Institute |
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| series | علوم و فناوری بذر ایران |
| spelling | doaj-art-d4495a993a59417c8b191e8bc3408d1b2025-08-20T03:31:20ZfasSeed and Plant Certification and Registration Instituteعلوم و فناوری بذر ایران2322-26462588-46382017-05-0161798810.22034/ijsst.2017.113217113217Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypesM. Habibzadeh Zarandi0I. Allahdadi1H. Khalaj2M.R. Labbafi3Department of Agronomy, Aburaihan College, University of Tehran, Pakdasht, Iran.Assistant Professor,Department of Agronomy, Aburaihan College, University of Tehran, Pakdasht, Iran.Assistant Professor, Agriculture Department, Payam Noor University, Tehran, Iran.Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran.This study was done to evaluate different nonlinear regression models to describe the response of germination rate and to determinate the cardinal temperature of four ecotypes of Cuminum cyminum(Cumin) seeds. This experiment was arranged in the form of three-factor factorial completely randomized design with 4 replications at the Agronomy Laboratory (Aburaihan College, University of Tehran) in 2011.The seeds were treated with different temperatures (0, 5, 15, 25, 35 and 45 oc) and the germination rate were calculated. The result showed that the temperature had a significant effect on germination rate of all plants. The segmented model was superior compared to other models in ecotypes of cumin since the minimum amount of AICc and maximum value of Adj R2 were related to this model. Base (Tb), optimum (To) and ceiling (Tc) temperatures were predicted with appropriate models. Tb, To, and Tc for Khorasani ecotype were 0, 11.4, 25 °C; for Krmani ecotype were 0, 11.5, 28.9 °C, for Jandaghi ecotype were 3.1, 9.6, 27.1 °C and for Esfahan ecotype 0, 10.1, 35.5 °C, respectively. It was concluded that this model can be used to quantify response of cumin seed germination to temperature and to obtain the proper cardinal temperatures of germination.https://ijsst.areeo.ac.ir/article_113217_0e80112ba7d8002fc4bd885c2ae2157e.pdfcuminum cyminumgermination ratenonlinear regression modelcardinal temperatures |
| spellingShingle | M. Habibzadeh Zarandi I. Allahdadi H. Khalaj M.R. Labbafi Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes علوم و فناوری بذر ایران cuminum cyminum germination rate nonlinear regression model cardinal temperatures |
| title | Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes |
| title_full | Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes |
| title_fullStr | Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes |
| title_full_unstemmed | Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes |
| title_short | Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes |
| title_sort | application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin cuminum cyminum ecotypes |
| topic | cuminum cyminum germination rate nonlinear regression model cardinal temperatures |
| url | https://ijsst.areeo.ac.ir/article_113217_0e80112ba7d8002fc4bd885c2ae2157e.pdf |
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