The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

NAZARI MAHTAB; MAMEDI ARASH; Hoseine Seyyad Mohamad Bagher

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Field Crop Science Year:2018 | Volume:48 | Issue:4 Page(s): 961-971

Download Full-Text

Persian Verion

View:

920

Download:

Cites:

Information Journal Paper

Title

The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression

Author(s)

NAZARI MAHTAB | MAMEDI ARASH | Hoseine Seyyad Mohamad Bagher | Issue Writer Certificate

Keywords

Dent-like modelQ1

Beta modified modelQ1

Cardinal temperaturesQ2

Germination and ThermaltimeQ2

Abstract

This study was conducted to quantify germination response of onion (Allium cepa) to temperature. For this purpose, seeds were exposed to various constant temperatures (5, 10, 15, 20, 25, 30, 35 and 40º C) treatments in seed lab, on Tehran university, in 2015. The effects of temperatures on rate and percentage of germination was significant. With temperature increasing from 5 to 30º C, both germination percentage and rate increased, while it decreased with increasing temperature from 30 to 35º C. Cardinal temperatures of seed germination were estimated by using four regression models including dent-like, segmented, beta modified and beta Models. The best model for estimating Cardinal temperatures was dent-like and Beta modified models that by used Dent-like model the base, under optimal, upper optimal and ceiling temperatures were 0. 3, 24. 99, 33 and 35. 89 ° C, respectively, and following Beta modified model, the base, optimal and ceiling temperature were 0. 2, 26. 87 and 35. 51° C. For predicting time of germination at different constant temperatures used Thermal-time was used that constant coefficient of Thermal-time was 3191. 43 (° Cd).

Cites

No record.

References

No record.

Cite

APA: Copy

NAZARI, MAHTAB, MAMEDI, ARASH, & Hoseine, Seyyad Mohamad Bagher. (2018). The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 48(4 ), 961-971. SID. https://sid.ir/paper/153710/en

Vancouver: Copy

NAZARI MAHTAB, MAMEDI ARASH, Hoseine Seyyad Mohamad Bagher. The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2018;48(4 ):961-971. Available from: https://sid.ir/paper/153710/en

IEEE: Copy

MAHTAB NAZARI, ARASH MAMEDI, and Seyyad Mohamad Bagher Hoseine, “The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 48, no. 4 , pp. 961–971, 2018, [Online]. Available: https://sid.ir/paper/153710/en

Related Journal Papers