Peanut Seed Vigor Evaluation Using a Thermal Gradient
Joint Authors
Beasley, John P.
Webster, Theodore M.
Chen, Charles Y.
Grey, Timothy L.
Source
International Journal of Agronomy
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-04
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Experiments conducted from 2007 to 2009 evaluated germination of 11 peanut runner-type cultivars.
Germination was evaluated in Petridishes incubated over a thermal gradient ranging from 14 to 30°C at 1.0 C increments.
Beginning 24 hr after seeding, peanut was counted as germinated when radicles were greater than 5 mm long, with removal each day.
Germination was counted daily for seven days after seeding.
Growing-degree day (GDD) accumulation for each temperature increment was calculated based on daily mean temperature for that Petri dish.
Two indices were obtained from a logistic growth curve used to elucidate seed germination by cultivar: (1) maximum indices of germination and (2) GDD value at 80% germination (Germ80), an indication of seed vigor the lower the Germ80 value, the greater the seed lot vigor.
Based on the two indices, seed lots “AT 3081R”, “AP-3”, “GA-06G”, and “Carver” had the strongest seed vigor (Germ80 26 to 47 GDD) and a high maximum incidence of germination rate (80 to 94%).
Seed lots of “C99-R”, “Georgia-01R”, “Georgia-02C”, and “Georgia-03L” had inconsistent seed performance, failing to achieve 80% germination in at least two of three years.
American Psychological Association (APA)
Grey, Timothy L.& Beasley, John P.& Webster, Theodore M.& Chen, Charles Y.. 2011. Peanut Seed Vigor Evaluation Using a Thermal Gradient. International Journal of Agronomy،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-454072
Modern Language Association (MLA)
Grey, Timothy L.…[et al.]. Peanut Seed Vigor Evaluation Using a Thermal Gradient. International Journal of Agronomy No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-454072
American Medical Association (AMA)
Grey, Timothy L.& Beasley, John P.& Webster, Theodore M.& Chen, Charles Y.. Peanut Seed Vigor Evaluation Using a Thermal Gradient. International Journal of Agronomy. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-454072
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-454072