应用生态学报2012，Vol.23Issue(10)：2779-2785,7.
丹参壮苗指数及其模拟模型
Seedling index of Salvia miltiorrhiza and its simulation model
摘要
Abstract
Through the correlation analysis on the quantitative traits and their ratios of Salvia miltiorrhiza seedlings and seedling quality, a series of representative indices reflecting the seedling quality of the plant species were determined, and the seedling index suitable to the S. miltiorrhiza seedlings was ascertained by correlation degree analysis. Meanwhile, based on the relationships between the seedling index and the air temperature, solar radiation and air humidity, a simulation model for the seedling index of 5. miltiorrhiza was established. The experimental data of different test plots and planting dates were used to validate the model. The results showed that the root diameter, stem diameter, crown dry mass, root dry mass, and plant dry mass had significant positive relationships with the other traits, and could be used as the indicators of the seedling' s health. The seedling index of S. miltiorrhiza could be calculated by ( stem diameter/root diameter + root dry mass/crown dry mass) x plant dry mass. The stem diameter, root dry mass, crown dry mass and plant dry mass had higher correlations with the seedling index, and thus, the seedling index determined by these indicators could better reflect the seedling' s quality. The coefficient of determination ( R2) between the predicted and measured values based on 1; 1 line was 0. 95, and the root mean squared error (RMSE) was 0.15, indicating that the model established in this study could precisely reflect the quantitative relationships between the seedling index of 5. miltiorrhiza and the environmental factors.关键词
丹参/壮苗指数/相关分析/关联度分析/模拟模型Key words
Salvia miltiorrhiza/ seedling index/ correlation analysis/ correlation degree analysis/simulation model分类
农业科技引用本文复制引用
黄淑华,徐福利,王渭玲,杜俊波,汝梅,王静,曹鲜艳..丹参壮苗指数及其模拟模型[J].应用生态学报,2012,23(10):2779-2785,7.基金项目
"十二五"国家科技支撑计划项目(2011BAD29B04)和陕西省科技创新工程项目(2011KTCL02-02)资助. （2011BAD29B04）
