寒地水稻RVA谱特征及与直链淀粉含量相关研究  

Study on RVA Profile Characteristics of Rice in Cold Region and Correlated with Amylase Content

作　　者：李佳美[1] 李修平[1] 李智媛[2] 马文东[3] 苗百更 吴恒梅[1] 

机构地区：[1]佳木斯大学生命科学学院,黑龙江佳木斯154007 [2]黑龙江省农业科学院信息中心,黑龙江哈尔滨150086 [3]黑龙江省农业科学院佳木斯水稻研究所,黑龙江佳木斯154026

出　　处：《黑龙江农业科学》2016年第8期6-10,共5页Heilongjiang Agricultural Sciences

基　　金：黑龙江省博士后资助项目(LBH-Z15203)

摘　　要：为有效利用寒地水稻种质资源,以166份寒地水稻种质资源为材料,测定RVA谱特征值以及直链淀粉含量,并对其进行变异分析、相关性分析及聚类分析,为寒地水稻品质育种的亲本选择提供理论依据。结果表明:在RVA谱特征值之间,变异最大的特征值为消减值,其次为回复值;在直链淀粉含量与RVA谱特征值之间,直链淀粉含量与崩解值无显著相关性,与其余特征值均呈极显著正相关;在聚类分析中,将供试材料大致分为5类。第1类品种具有热浆黏度、冷浆黏度和回复值的平均值均最高的特点;第2类品种的消减值和回复值较大;第3类品种最高黏度和崩解值最大;第4类品种的崩解值最小,消减值最大;而第5类品种除崩解值外,其余特征值均最小。166 rice germplasm resources of rice in cold region were used as the experimental materials, RVA profile characteristics and amylose content were determined, and variation analysis, correlation analysis and cluster analysis were carried in order to provide theoretical basis for parent selection of rice quality breeding in cold region. The results showed that the variation coefficient of setback was the biggest, followed by consistence; there was no significant correlation between amylose content and breakdown, and there were significantly positive correlation between other RVA profile characteristics. The experimental materials were divided into 5 groups according to the cluster analysis, the average of hot paste viscosity, cold paste viscosity and consistence of group 1 were the largest; setback and consistence of group 2 were the biggest; peak viscosity and breakdown of group 3 were the biggest; breakdown of group 4 was the lowest, setback was the biggest; the RVA profile characteristic of group 5 were the smallest, excepted breakdown.

关 键 词：寒地水稻 RVA谱特征值 直链淀粉含量 相关分析 聚类分析 

分 类 号：S511[农业科学—作物学]