8个糯玉米品系穗部性状及籽粒营养成分比较分析  

Comparative Analysis of Ear Characteristics and Grain Nutrient Composition of 8 Waxy Maize Lines

作　　者：陈平 余海兵 CHEN Ping;YU Haibing(College of Agriculture,Anhui Science and Technology University,Fengyang 233100,Anhui,China)

机构地区：[1]安徽科技学院农学院,安徽凤阳233100

出　　处：《江汉大学学报（自然科学版）》2024年第2期5-12,共8页Journal of Jianghan University：Natural Science Edition

基　　金：安徽省自然科学基金资助项目(1408085MC47)。

摘　　要：为筛选玉米穗部外观品质优良、营养成分丰富的鲜食糯玉米品系,采用随机区组设计比较分析了8个糯玉米品系穗部性状及籽粒营养成分。结果表明:8个糯玉米品系穗籽粒重、鲜百粒重、穗轴重、穗长、穗粗、秃尖长、穗行数、行粒数、轴粗、维生素C含量、维生素E含量和维生素B6含量均存在显著差异性,其中穗部性状秃尖长的变异系数最大,达73.2%;营养成分维生素E含量的变异系数最大,达99.03%。相关性分析表明:维生素E含量与维生素B6含量呈极显著正相关;可溶性糖含量与鲜百粒重呈显著正相关;穗长、穗行数均与穗轴重呈显著正相关;穗粗与行粒数、穗籽粒重均呈现极显著正相关;秃尖长与鲜百粒重呈显著负相关;穗籽粒重与行粒数极显著正相关。聚类分析得出综合营养品质高的品系有晶彩糯2号、诚糯8号、凤糯1号、京糯832,为生产上选出营养成分丰富的糯玉米品系提供了理论支撑。To select fresh waxy maize lines with excellent ear appearance quality and rich nutritional components,a randomized block design was used to comparatively analyze the ear characteristics and grain nutritional components of 8 waxy maize lines.The results showed that there were significant differences in kernel weight,fresh 100-grain weight,cob weight,ear length,ear diameter,bald tip length,row number of ear,kernel number of row,axis diameter,vitamin C content,vitamin E content,and vitamin B6 content among the 8 waxy maize lines.The variation coefficient of bald tip length was the largest among ear characteristics,reaching 73.2%.And the variation coefficient of vitamin E content was the largest among nutrient composition,reaching 99.03%.The correlation analysis showed that the content of vitamin E was an extremly significant pastive correlation between vitamin E content and vitamin B6 Content;there was a significant positive correlation between soluble sugar content and the fresh 100-grain weight;the spike length and the number of rows per ear were positively correlated with the weight of the spike axis significantly;the ear diameter was positively correlated with the grain number per row and the grain weight per ear extremly significantly;there was a significant negative correlation between the bald tip length and the fresh 100-grain weight;the grain weight per ear was positively correlated with the grain number per row extremly significantly.Cluster analysis showed that the lines with high comprehensive nutritional quality included Jingcainuo 2,Chengnuo 8,Fengnuo 1,and Jingnuo 832,which provided theoretical support for selecting glutinous corn varieties with rich nutritional components in production.

关 键 词：糯玉米 穗部性状 营养成分 秃尖长 维生素E 

分 类 号：S513[农业科学—作物学]