Chinese Journal OF Rice Science

Chinese Journal OF Rice Science >

2010 , Vol. 24 >Issue 5: 531 - 534

DOI: https://doi.org/10.3969/j.issn.1001-7216.2010.05.015

研究简报

Comparison of Rice Quality Characters in Northeast Region of China

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  • 1Rice Institute, Shenyang Agricultural University / Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture/Key Laboratory of Northern Japonica Rice Breeding of Liaoning, Shenyang 110161, China; 2Rice Institute of Liaoning Province, Shenyang 110161; 3Rice Institute of Jilin Province, Gongzhuling 136100, China; 4Rice Institute of Heilongjiang Province, Jiamusi 154000, China; *Corresponding author, E-mail: xuzhengjin@126.com

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2010-09-10

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Abstract

The major quality parameters of rice cultivars(lines) for regional yield trials in Liaoning, Jilin and Heilongjiang Provinces, China in 2002-2007 were tested. The results showed that the milling quality was high in all the three provinces. Brown rice percentage and milled rice percentage were the highest in Jilin, and head rice percentage was the highest in Liaoning. There were no significant differences in chalky grain rate and chalkiness between the cultivars from Liaoning and Jilin, but their chalky grain rate and chalkiness were significantly higher than the cultivars from Heilongjiang. The order of the ratio of grain length to width was as follows: Jilin > Liaoning > Heilongjiang, and for protein content, Liaoning > Jilin > Heilongjiang. For amylose content it showed a descending trend as Heilongjiang > Jilin > Liaoning, but the difference between Liaoning and Jilin was not significant. Gel consistency ranked as Liaoning > Heilongjiang > Jilin. A downward trend was found in head rice percentage in the cultivars from Heilongjiang and Jilin and brown rice percentage in the cultivars from Heilongjiang in recent years. Grain length and ratio of grain length to width were significantly and negatively correlated with brown rice percentage and milled rice percentage. Chalky grain rate and chalkiness were significantly and negatively correlated with milled rice percentage, head rice percentage and ratio of grain length to width. In rice breeding and cultivation, more attention should be paid to decreasing chalky grain rate and chalkiness in Liaoning and Jilin, stabilizing head rice percentage in Heilongjiang and Jilin and increasing brown rice percentage in Heilongjiang.

Key words： rice; the three provinces in Northeast China; quality character

Cite this article

XU Zheng-jin,HAN Yong,SHAO Guo-jun,ZHANG Xue-jun,QUAN Cheng-zhe,PAN Guo-jun,YAN Ping,CHEN Wen-fu . Comparison of Rice Quality Characters in Northeast Region of China[J]. Chinese Journal OF Rice Science, 2010 , 24(5) : 531 -534 . DOI: 10.3969/j.issn.1001-7216.2010.05.015

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