Seed germination of calendula in response to temperature

Carrie A. Eberle; Frank Forcella; Russ Gesch; Dean Peterson; James Eklund

doi:10.1016/j.indcrop.2013.10.031

Seed germination of calendula in response to temperature

Carrie A. Eberle
, Frank Forcella
, Russ Gesch
, Dean Peterson
, James Eklund

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Calendula (Calendula officinalis L.) seeds contain high concentrations of calendic acid (C18:3) which can be used as tung and linseed oil substitutes. Calendula is adapted to temperate climate, but field studies in western Minnesota indicated that stand establishment was susceptible to high soil temperatures immediately after planting in spring. Consequently, understanding the temperature conditions that govern germination of calendula is necessary to incorporate the crop into crop rotations of the Upper Midwest, U.S. Temperature gradient bar and heat-shock experiments were used to characterize calendula (cv. 'Carola') sensitivity before and during germination. Seed germinated between 2 and 32. °C with the optimum germination temperature at 16-17. °C. Heat shock temperatures (35-40. °C) of less than 50. h duration reduced germination (at 16. °C) below 50%. At 45. °C, 100% seed lethality was induced within 24. h of heat treatment. Accordingly, calendula seed should be sown in the field only if forecasted soil conditions are expected to be below 30. °C during seed germination.

Original language	English (US)
Pages (from-to)	199-204
Number of pages	6
Journal	Industrial Crops and Products
Volume	52
DOIs	https://doi.org/10.1016/j.indcrop.2013.10.031
State	Published - Jan 2014
Externally published	Yes

Bibliographical note

Funding Information:
We would like to thank Elise Porcher for her contributions in collecting data for the gradient bar germination trials and Jesse Eklund for his preliminary germination studies in response to heat shock. This work was supported through the USDA-National Institute of Food and Agriculture (NIFA) award 2012-67009-20272 .

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 2 Zero Hunger

Keywords

Calendula officinalis L. 'Carola'
Cardinal temperature
Germination
Seed
Thermal death

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10.1016/j.indcrop.2013.10.031

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@article{38026024fdab467c82780f2f7d721b66,

title = "Seed germination of calendula in response to temperature",

abstract = "Calendula (Calendula officinalis L.) seeds contain high concentrations of calendic acid (C18:3) which can be used as tung and linseed oil substitutes. Calendula is adapted to temperate climate, but field studies in western Minnesota indicated that stand establishment was susceptible to high soil temperatures immediately after planting in spring. Consequently, understanding the temperature conditions that govern germination of calendula is necessary to incorporate the crop into crop rotations of the Upper Midwest, U.S. Temperature gradient bar and heat-shock experiments were used to characterize calendula (cv. 'Carola') sensitivity before and during germination. Seed germinated between 2 and 32. °C with the optimum germination temperature at 16-17. °C. Heat shock temperatures (35-40. °C) of less than 50. h duration reduced germination (at 16. °C) below 50\%. At 45. °C, 100\% seed lethality was induced within 24. h of heat treatment. Accordingly, calendula seed should be sown in the field only if forecasted soil conditions are expected to be below 30. °C during seed germination.",

keywords = "Calendula officinalis L. 'Carola', Cardinal temperature, Germination, Seed, Thermal death",

author = "Eberle, \{Carrie A.\} and Frank Forcella and Russ Gesch and Dean Peterson and James Eklund",

note = "Funding Information: We would like to thank Elise Porcher for her contributions in collecting data for the gradient bar germination trials and Jesse Eklund for his preliminary germination studies in response to heat shock. This work was supported through the USDA-National Institute of Food and Agriculture (NIFA) award 2012-67009-20272 .",

year = "2014",

month = jan,

doi = "10.1016/j.indcrop.2013.10.031",

language = "English (US)",

volume = "52",

pages = "199--204",

journal = "Industrial Crops and Products",

issn = "0926-6690",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Seed germination of calendula in response to temperature

AU - Eberle, Carrie A.

AU - Forcella, Frank

AU - Gesch, Russ

AU - Peterson, Dean

AU - Eklund, James

N1 - Funding Information: We would like to thank Elise Porcher for her contributions in collecting data for the gradient bar germination trials and Jesse Eklund for his preliminary germination studies in response to heat shock. This work was supported through the USDA-National Institute of Food and Agriculture (NIFA) award 2012-67009-20272 .

PY - 2014/1

Y1 - 2014/1

N2 - Calendula (Calendula officinalis L.) seeds contain high concentrations of calendic acid (C18:3) which can be used as tung and linseed oil substitutes. Calendula is adapted to temperate climate, but field studies in western Minnesota indicated that stand establishment was susceptible to high soil temperatures immediately after planting in spring. Consequently, understanding the temperature conditions that govern germination of calendula is necessary to incorporate the crop into crop rotations of the Upper Midwest, U.S. Temperature gradient bar and heat-shock experiments were used to characterize calendula (cv. 'Carola') sensitivity before and during germination. Seed germinated between 2 and 32. °C with the optimum germination temperature at 16-17. °C. Heat shock temperatures (35-40. °C) of less than 50. h duration reduced germination (at 16. °C) below 50%. At 45. °C, 100% seed lethality was induced within 24. h of heat treatment. Accordingly, calendula seed should be sown in the field only if forecasted soil conditions are expected to be below 30. °C during seed germination.

AB - Calendula (Calendula officinalis L.) seeds contain high concentrations of calendic acid (C18:3) which can be used as tung and linseed oil substitutes. Calendula is adapted to temperate climate, but field studies in western Minnesota indicated that stand establishment was susceptible to high soil temperatures immediately after planting in spring. Consequently, understanding the temperature conditions that govern germination of calendula is necessary to incorporate the crop into crop rotations of the Upper Midwest, U.S. Temperature gradient bar and heat-shock experiments were used to characterize calendula (cv. 'Carola') sensitivity before and during germination. Seed germinated between 2 and 32. °C with the optimum germination temperature at 16-17. °C. Heat shock temperatures (35-40. °C) of less than 50. h duration reduced germination (at 16. °C) below 50%. At 45. °C, 100% seed lethality was induced within 24. h of heat treatment. Accordingly, calendula seed should be sown in the field only if forecasted soil conditions are expected to be below 30. °C during seed germination.

KW - Calendula officinalis L. 'Carola'

KW - Cardinal temperature

KW - Germination

KW - Seed

KW - Thermal death

UR - https://www.scopus.com/pages/publications/84887807740

UR - https://www.scopus.com/pages/publications/84887807740#tab=citedBy

U2 - 10.1016/j.indcrop.2013.10.031

DO - 10.1016/j.indcrop.2013.10.031

M3 - Article

AN - SCOPUS:84887807740

SN - 0926-6690

VL - 52

SP - 199

EP - 204

JO - Industrial Crops and Products

JF - Industrial Crops and Products

ER -

Seed germination of calendula in response to temperature

Abstract

Bibliographical note

UN SDGs

Keywords

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