Seed vigor of contrasting rice cultivars in response to elevated carbon dioxide
Article
Article Title | Seed vigor of contrasting rice cultivars in response to elevated carbon dioxide |
---|---|
ERA Journal ID | 5309 |
Article Category | Article |
Authors | Chen, Chen (Author), Jiang, Qian (Author), Ziska, Lewis H. (Author), Zhu, Jianguo (Author), Liu, Gang (Author), Zhang, Jihuang (Author), Ni, Kang (Author), Seneweera, Saman (Author) and Zhu, Chunwu (Author) |
Journal Title | Field Crops Research |
Journal Citation | 178, pp. 63-68 |
Number of Pages | 6 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0378-4290 |
1872-6852 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.fcr.2015.03.023 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0378429015001148 |
Abstract | Although a number of studies have shown that rising atmospheric carbon dioxide concentration, [CO2], can differentially affect the growth and yield potential of rice (Oryza sativa L.) cultivars, there has been no attempt to determine if the response is associated with changes in seed vigor, an essential aspect of crop establishment. Because previous investigations have shown that [CO2] can change the grain structure and quality of rice seed, we hypothesized that [CO2] would decrease vigor via decreased germination rates. To test this hypothesis, we used an in situ, free-air CO2 enrichment (FACE) system to assess seed quality in six rice cultivars that differed in their growth and reproductive response to rising [CO2]. Elevated [CO2] had no effect on seed hull thickness or seed specific gravity, but did significantly reduce total nitrogen and protein concentration for all cultivars. Despite the changes in grain physical and chemical traits associated with germination, no clear indication of quantitative effects of elevated [CO2] on rice germination was found. |
Keywords | cultivars; elevated CO2; germination rate; germination energy; seed vigor |
ANZSRC Field of Research 2020 | 410203. Ecosystem function |
300404. Crop and pasture biochemistry and physiology | |
410102. Ecological impacts of climate change and ecological adaptation | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Chinese Academy of Sciences, China |
Department of Agriculture, United States | |
Centre for Crop Health | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q35w5/seed-vigor-of-contrasting-rice-cultivars-in-response-to-elevated-carbon-dioxide
1731
total views10
total downloads3
views this month0
downloads this month