Показатељи квалитета двогодишњих садница горског јавора (Acer pseudoplatanus L.) / Quality indicators of two-year-old seedlings of the sycamore maple (Acer pseudoplatanus L.)
2017
Поповић, Владан | Ракоњац, Љубинко | Лучић, Александар
This paper presents the analysis of morphological characteristics of two-year-old seedlings of the sycamore maple (Acer pseudoplatanus L.) and their mutual relations. Based on the conducted analyses we determined which of these morphological characteristics gives the best quality assessment requiring the least amount of time and resources. The seedlings were grown from the seeds of known origin in the homogeneous environment of the seedling nursery at the Institute of Forestry in Belgrade (Serbia). The measurements were carried out on a random sample of 50 seedlings in four replications. The following mor- phological characteristics were measured: the root collar diameter, the height of a seedling, the weight of the aboveground and the underground part of a seedling in the dry condition, the number of buds, the length and the volume of a root. The obtained values were used to calculate the following ratios: the height to the root collar diameter, the weight of the aboveground part of a seedling to the weight of the underground part of a seedling and the quality index. The root collar diameter had the strongest correlation with other morphological characteristics and hence it can be recommended as a good indicator of the quality of two- -year-old seedlings. The quality index is the most comprehensive indicator of the quality of two-year-old sycamore maple seedlings but the seedlings are destroyed in the process of its determination and it requires much time and great resources.
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