Estimating tuber dry matter concentration from accumulated thermal time and soil moisture

被引:10
作者
Jefferies, R. A. [1 ]
Heilbronn, T. D. [1 ]
MacKerron, D. K. L. [1 ]
机构
[1] Scottish Crop Res Inst, Dundee DD2 5DA, Scotland
关键词
tuber quality; Solanum tuberosum L;
D O I
10.1007/BF02358495
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The tuber dry matter concentration, [DM], of crops of potato (Solanum tuberosum L.) was related using regression analysis, to time, thermal time, incident radiation accumulated from plant emergence, and soil moisture deficit (SMD). Variation in [DM] was best accounted for by the regression model that was a function of thermal time above a base of O degrees C accumulated from plant emergence, and SMD. When validated against an independent data set, there was good agreement between observed and estimated [DM] with a linear relation accounting for 79.3 % of the variance.
引用
收藏
页码:411 / 417
页数:7
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