Effects of Aroma-enhancing Cultivation on Quality and Yield of High-quality Aromatic Rice
To investigate the effect of aroma-enhancing cultivation on the quality and yield of high-quality aromatic rice,four high-quality conventional fragrant rice varieties and four high-quality hybrid aromatic rice varieties were used as experimental materials to conduct comparative field experiments with conven-tional and aroma-enhancing cultivation methods in this study.Each high-quality aromatic rice was meas-ured for proline content,grain quality,yield,and yield composition.Compared with conventional cultiva-tion,the proline content and head-milled rate of aromatic rice,and the protein content and gel consistency of hybrid aromatic rice were significantly increased.The degree of chalkiness and the rate of chalkiness grain of hybrid aromatic rice and the amylose content of the aromatic rice decreased significantly.The RVA spectrum characteristics of starch viscosity of fragrant rice showed an overall decreasing trend with different degrees of decline.The pasting temperature of hybrid aromatic rice increased significantly,while cool paste viscosity,pasting temperature,and peak time of conventional aromatic rice showed no signifi-cant changes.There was a significant decrease in the flavor score of conventional aromatic rice,but no sig-nificant change in the flavor score of hybrid aromatic rice.In addition,aroma-enhancing cultivation had different effects on yield and yield composition.Among them,the yield and effective panicles of hybrid ar-omatic rice significantly increased,while the number of grains per panicle and thousand grain weight did not show significant changes.