CAJ | 학술논문

以粳型超级稻宁粳3号和常规粳稻镇稻11号为材料,在机械插秧条件下,研究施氮量（0、90、180、270、360 kg/hm2）对粳型超级稻主要米质性状及淀粉粘滞谱（RVA谱）特征的影响。结果表明：施氮量对两个品种的稻米加工品质、营养品质、蒸煮食味品质及淀粉RVA谱3个曲线峰值的影响达到显著或极显著水平,对淀粉RVA谱其他特征参数的影响因不同品种而异;增加施氮量使两品种外观品质变差。随施氮量的增加,两个品种的糙米率、精米率、整精米、精米蛋白质含量呈增加趋势,而稻米的直链淀粉含量、食味值和淀粉RVA谱曲线峰值（峰值黏度、热浆黏度和冷胶黏度）呈现下降趋势。表明增施氮肥在提高粳型超级稻和常规粳稻加工和营养品质的同时,降低了稻米食味品质,并使稻米淀粉粘性变劣。
이갱형초급도저갱3호화상규갱도진도11호위재료,재궤계삽앙조건하,연구시담량（0、90、180、270、360 kg/hm2）대갱형초급도주요미질성상급정분점체보（RVA보）특정적영향。결과표명：시담량대량개품충적도미가공품질、영양품질、증자식미품질급정분RVA보3개곡선봉치적영향체도현저혹겁현저수평,대정분RVA보기타특정삼수적영향인불동품충이이;증가시담량사량품충외관품질변차。수시담량적증가,량개품충적조미솔、정미솔、정정미、정미단백질함량정증가추세,이도미적직련정분함량、식미치화정분RVA보곡선봉치（봉치점도、열장점도화랭효점도）정현하강추세。표명증시담비재제고갱형초급도화상규갱도가공화영양품질적동시,강저료도미식미품질,병사도미정분점성변렬。
Using Japonica super rice cultivar Ningjing 3 and conventional Japonica rice Zhendao 11,the effects of nitrogen（N） application rate（0 kg/hm2,90 kg/hm2,180 kg/hm2,270 kg/hm2,360 kg/hm2） on rice quality and starch RVA profile parameters were investigated under mechanical transplanting rice cultivation pattern.The results showed that rice milling quality,nutritional quality,cooking and taste quality,three peak starch RVA profile parameters（peak viscosity,hot viscosity,cool viscosity） of Ningjing 3 and Zhendao 11 measured in this study were significantly influenced by N application rate treatments,and the other starch RVA profile parameters differed between two Japonica rice cultivars.Increasing N application rate would increase chalkiness rice rate of two Japonica rice cultivars.Both Ningjing 3 and Zhendao 11 showed the same trend that,with raising N application rate,brown rice rate,milled rice rate,head rice rate and rice protein content increased,while rice amylase content,taste value,peak viscosity,hot viscosity,cool viscosity of rice starch decreased.These results indicated that increasing N application rate would result in increment of milling quality and nutritional quality of rice,while rice taste quality and starch viscosity decreased.