The appropriate sowing date of japonica rice in Southern Henan was studied in the perspective of rice quality. The results showed that the brown rice rate and milled rice rate of the five japonica varieties showing increasing trend, as the sowing date postponed, the chalkiness degress, chalky rice rate and chalkiness size showing a significant decreasing trend. The coefficient of variation of grain length and length-width ratio were small. Gel consistency in Ⅱ period or Ⅲ period was the largest. The amylose content and alkali value had great difference under different sowing date, but there was no significant regular changes. The result of fuzzy probability method showed that the quality of five japonica varieties were increased as the sowing date was postponed,and the quality of Ⅳ or Ⅴ sowing date were the best.
LIU Qiu-Yuan-1, SONG Xiao-Hua-2, DUAN Bin-2, HE Shi-Jie-2, LI Hui-Long-2, ZHEN Cai-Hong-2, SONG Shi-Zhi-2*
. Effects of Different Sowing Date on the Quality of Japonica Rice in Southern Henan[J]. China Rice, 2015
, 21(4)
: 179
-183
.
DOI: 10.3969/j.issn.1006-8082.2015.04.041
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