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DOI | 10.1080/1343943X.2018.1563496 |
Effects of free-air CO2 enrichment on heat-induced sterility and pollination in rice | |
Kobayasi, Kazuhiro1; Eydi, Mohammad Jawid1; Sakai, Hidemitsu2; Tokida, Takeshi2; Nakamura, Hirofumi3; Usui, Yasuhiro2; Yoshimoto, Mayumi2; Hasegawa, Toshihiro2 | |
发表日期 | 2019 |
ISSN | 1343-943X |
EISSN | 1349-1008 |
卷号 | 22期号:3页码:374-381 |
英文摘要 | Global climate changes may cause heat-induced sterility in rice, threatening the global production of this important crop. Although little is currently known about the combined effects of the concentration of atmospheric CO2 ([CO2]) and temperature on heat-induced sterility, elevated [CO2] (E-[CO2]) will likely increase the panicle temperature and thereby exacerbate heat-induced sterility, but this was not tested in open fields. Therefore, we investigated the effect of E-[CO2] on heat-induced sterility and sterility-related traits in rice by increasing E-[CO2] by approximately 200 mu molmol(-1) above ambient levels using a free-air CO2 enrichment (FACE) facility for six growing seasons with variable growing season temperatures. The percentage fertility was not significantly correlated with the air temperature (T-a) between 09:00 and 12:00 on each flowering day, but it did significantly vary among the years, with 2011 experiencing cool temperatures resulting in chilling-induced mild sterility. When data from 2011 were removed, there was a significant negative correlation between fertility and T-a between 09:00 and 12:00 on each flowering day under E-[CO2], whereas no such effect was seen under ambient [CO2]. E-[CO2] also significantly reduced the number of pollen grains deposited on the stigma by 10%, but it slightly increased the anther length by 1.3%, indicating that it had both negative and positive effects on heat-induced sterility. These findings suggest that E-[CO2] affects many traits related to heat-induced sterility and may sometimes exacerbate sterility by reducing pollen grain deposition.Abbreviations:A-[CO2]: ambient CO2; [CO2]: the concentration of carbon dioxide; E-[CO2]: elevated [CO2]; FACE: free-air CO2 enrichment; T-a: air temperature |
WOS研究方向 | Agriculture |
来源期刊 | PLANT PRODUCTION SCIENCE
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/100284 |
作者单位 | 1.Shimane Univ, Inst Agr & Life Sci, Matsue, Shimane, Japan; 2.NARO, Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki, Japan; 3.Taiyo Keiki CO Ltd, Tokyo, Japan |
推荐引用方式 GB/T 7714 | Kobayasi, Kazuhiro,Eydi, Mohammad Jawid,Sakai, Hidemitsu,et al. Effects of free-air CO2 enrichment on heat-induced sterility and pollination in rice[J],2019,22(3):374-381. |
APA | Kobayasi, Kazuhiro.,Eydi, Mohammad Jawid.,Sakai, Hidemitsu.,Tokida, Takeshi.,Nakamura, Hirofumi.,...&Hasegawa, Toshihiro.(2019).Effects of free-air CO2 enrichment on heat-induced sterility and pollination in rice.PLANT PRODUCTION SCIENCE,22(3),374-381. |
MLA | Kobayasi, Kazuhiro,et al."Effects of free-air CO2 enrichment on heat-induced sterility and pollination in rice".PLANT PRODUCTION SCIENCE 22.3(2019):374-381. |
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