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Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (22): 1-9.doi: 10.11924/j.issn.1000-6850.casb18030020

Special Issue: 水稻

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Direct Sowing Rice and Conventional High Quality Rice in Henan Alongside the Yellow River: Grain Quality Comparative Analysis

  

  • Received:2018-03-05 Revised:2018-07-23 Accepted:2018-05-25 Online:2018-08-07 Published:2018-08-07

Abstract: To study the difference of grain quality between direct sowing rice and conventional transplanting rice alongside the Yellow River rice cultivation area, we selected 6 direct sowing rice varieties, 8 transplanting rice varieties and 7 high quality commercial rice varieties to compare their milling quality, appearance quality, eating quality and nutritional quality. The results showed that: compared with transplanting rice and commercial rice, the milled rice rate of direct sowing rice was higher than that of transplanting rice, while the chalky grain percentage and chalkiness degree, amylose content, food taste value of direct sowing rice was lower than that of transplanting rice, but higher than that of commercial rice; and the protein content of direct sowing rice was higher than that of transplanting rice, but lower than that of commercial rice; in addition, the direct sowing rice varieties had higher breakdown viscosity, smaller setback viscosity, higher valine and cystine content, lower methionine content, and the other amino acid contents were all lower than those of transplanting rice varieties, but higher than those of the commercial rice. Combined with all the quality traits, it is found that among the 6 direct sowing rice varieties, the processing quality, appearance quality, eating quality and nutritional quality of‘Xindao 568’,‘Zhengdao 201’ and ‘Xindao 567’are comparative to those of conventional high-quality rice. Therefore, it is possible to simplify the rice cultivation by direct sowing with ensuring yield and quality through variety selection.