Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2006, Vol. 22 ›› Issue (2): 171-171.

Special Issue: 水稻

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Analysis on Grain Quality of New Rice in Heilongjiang Province

Liu Baohai   

  • Online:2006-02-05 Published:2006-02-05

Abstract: Some grain quality traits of 35 new rice varieties in Heilongjiang province in 2000—2004 were analyzed. Results showed that, according to standard for Fine Quality Rice, by Ministry of Agriculture, China(NY/T-593-2002), no varieties reached first class’s standard of quality score, and 74.29% rice varieties reached 2nd class’s standard of quality score; Chalky grain、chalkiness and amylose content reached first class’s standard of quality score among quality trait of varieties tested; Correlation coefficients among some quality trait of varieties were significantly positive at 5% and 1% levels; Cumulative percent of brow rice factor、chalky gain factor, amylose content factor, protein content factor and head rice factor reached 82.5% through principal component analysis of grain quality traits, and Regress equation of quality score which was Y=75.086+0.246 x1-0.932 x2 -0.577 x3 -0.124 x4 +3.072 x5 were established.