迪克森质量指数:与森林种子技术影响的关系

Arthur Novikov, Siarhei Rabko, Tatyana Novikova, E. Petrishchev
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引用次数: 2

摘要

Dickson质量指数(DQI)是一种在种植时预测种植材料质量的综合指标,目前在森林作物生长发育的研究中得到了广泛的代表,但并不局限于它们。在对术语[Scholar Query = "Dickson质量指数"]返回的深度为10年的数据进行系统化的基础上,基于Dickson质量指数依赖于技术对种子和幼苗(幼苗)影响的标准的动态,采用最近邻的方法来描述标准之间的相似性,进行了分层分类。用欧几里得距离的平方对数据进行分组。在大多数情况下,DQI指数的变化可以用二阶多项式来近似。收敛差分法对播前种子的技术影响显著(p <0.05)分配给一个单独的聚类(欧几里得距离的平方为4),这表明DQI可能对种植材料质量的评估有贡献。在未来的研究中,我们计划回答这样一个问题:通过光谱性质分离种子对个体发生过程中DQI指数的动态有什么影响?株高与根颈直径之比的维数如何影响DQI估计的准确性?
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Dickson Quality Index: relation to technological impact on forest seeds
A comprehensive indicator of predicting the quality of planting material at the time of planting – the Dickson quality Index (DQI) – is currently widely represented in studies of the growth and development of forest crops, but is not limited to them. Based on the systematization of data to a depth of 10 years returned by the term [Scholar Query = "Dickson quality index"], on the dynamics of the Dickson quality index depending on the criteria of technological impact on seeds and seedlings (seedlings), a hierarchical classification was carried out using the method of the most distant neighbors to describe the similarity between the criteria. Data grouping was performed using the square of the Euclidean distance. The change in the DQI index in most cases can be approximated by a second-order polynomial. The technological impact on seeds before sowing on the basis of the convergence and difference method is significantly (p < 0.05) allocated to a separate cluster (the square of the Euclidean distance is 4), which suggests a possible contribution to the assessment of the quality of planting material using DQI. In future studies, it is planned to get an answer to the question: what effect does the separation of seeds by spectrometric properties have on the dynamics of the DQI index in the process of ontogenesis? How does the dimensionality of the ratio of plant height to the diameter of the root neck affect the accuracy of the DQI estimate?
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