Research Article | OPEN ACCESS
Evaluation of Cold Tolerance for Japonica Rice Varieties from Different Country
1Jinming Wang, 1Xiuyun Lin, 1Qiang Sun and 2Kshirod K. Jena
1Rice Research Institute, Jilin Department of Agriculture Science, Gongzhuling, 136100, China
2IRRI-Korea Office, National Department of Crop Science, RDA, 209 Seodun-Dong,
Suwon, 441-857, Republic of Korea
Advance Journal of Food Science and Technology 2013 1:54-56
Received: September 26, 2012 | Accepted: November 11, 2012 | Published: January 15, 2013
Abstract
Low temperature is a major limiting factor for agricultural productivity in temperate areas and at high altitudes in Asian cultivated rice (Oryza sativa). Difference of cold tolerance traits at booting stage and the similarity of japonica varieties between different countries were studied, by using 11 japonica rice varieties from three countries. The results showed that the cold tolerance at the booting stage among japonica rice under natural temperature and cold water irrigation were significantly different and japonica rice varieties from Korea showed stronger cold tolerance than that from Russia and China. Five japonica rice varieties with stronger cold tolerance at the booting stage were selected. Among them, Jinbubyeo, Junganbyeo and SR30084-F8-156 from Korea showed stronger cold tolerance both under constant cold water irrigation and 7-days cold water treatment at booting stage. This study also funded that the main panicle length of all test materials becomes shorter than the control.
Keywords:
Booting stage, cold tolerance, cold water stress, natural low temperature, rice,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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