期刊论文

Correlation between hardness and dry-matter content of storage root in Sweetpotato [Ipomoea batatas (L.) Lam.]

Fu, T.-H.

中文

作物学报

Acta Agronomica Sinica

0496-3490

2017

43

8

1234-1244

10.3724/SP.J.1006.2017.01234

重庆市社会事业与民生保障科技创新专项重大项目(cstc2015shms-ztzx80001, cstc2015shms-ztzx80002, cstc2015shms-ztzx80003, cstc2015shms-ztzx80004)资助.This study was supported by the Technology Innovation Fund of Chongqing (cstc2015shms-ztzx80001, cstc2015shms-ztzx80002, stc2015shms-ztzx80003, cstc2015shms-ztzx80004)

本校为其他机构

分别采用硬度测定法和烘干法,测试129份甘薯品种(系)块根不同部位的硬度值与干物质含量,构建甘薯各部位硬度与干物质含量的线性回归方程,以探讨甘薯硬度与干物质含量的关系,以及甘薯硬度与干物质含量分级标准。结果表明,129份甘薯材料的块根干物质含量与硬度均可划分为服从正态分布的5级,其平均分布频率为10.00%、19.12%、40.88%、20.88%和9.12%;甘薯不同部位硬度之间存在显著差异;其硬度值表现为径向切割心部>径向切割中部>轴向切割尾部>轴向切割头部>轴向切割心部>轴向切割中部;甘薯硬度与干物质含量呈极显著正相关,以径向切割心部与径向切割中部硬度的平均值建立甘薯干物质含量与硬度间的回归...

To explore the correlation and to discuss the classification standard of hardness and dry-matter content of sweetpotato, collected and determined 129 sweetpotato varieties (lines) by using sclerometer and drying method, respectively, and the linear regression equation was established based on the correlation between hardness and dry-matter content values. The dry-matter content and hardness of storage root in the 129 sweetpotato varieties (lines) could be divided into five grades with normal distribution, which proportions were 10.00%, 19.12%, ...