Study on Relationship between Resistance to Blast and Quality 
in Early Japonica Rice in Cold Region

doi:10.11924/j.issn.1000-6850.0501260

Chin Agric Sci Bull ›› 2005, Vol. 21 ›› Issue (1) : 260-260. DOI: 10.11924/j.issn.1000-6850.0501260

Study on Relationship between Resistance to Blast and Quality in Early Japonica Rice in Cold Region

Pan Guojun,, Chen Wenfu, Feng Yashu, Song Chengyan, Li Xiahui, Zhang Lanmin Liu Chuanxue, Wang Guiling, Wang Ruiying, Zhang Yunjiang

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Abstract

Correlation coefficients between rice resistance to blast and qualities of 131 varietieswhich were tested in the region trial in the cold region in recent 5 years. The result showed: A significant negative correlation effect between resistance to blast and grain Length/Width (L/W) ratio in cold region early japonica rice varieties; A significant positive correlation effect between resistance to leaf and neck blast and chalkiness factor included chalky grain, chalkiness and chalk size; A significant negative correlation effect between resistance to leaf blast and protein content. Leaf blast showed different relationship to steaming quality and eating quality in different experimental ways. A significant negative correlation effect to gel consistency(GC), amylose content (AC) and eating quality in artificial identification.

Key words

Cold region;Early japonica rice;Resistance to blast;Quality correlation

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Pan Guojun,, Chen Wenfu, Feng Yashu, Song Chengyan, Li Xiahui, Zhang Lanmin Liu Chuanxue, Wang Guiling, Wang Ruiying, Zhang Yunjiang. Study on Relationship between Resistance to Blast and Quality in Early Japonica Rice in Cold Region[J]. Chinese Agricultural Science Bulletin. 2005, 21(1): 260-260 https://doi.org/10.11924/j.issn.1000-6850.0501260