Using cluster analysis as a method of classification of the genus Salix L. representatives
Journal Title: Plant varieties studying and protection - Year 2015, Vol 0, Issue 1
Abstract
Purpose. To study interactions among the representatives of the genus Salix L. through the cluster analysis, form groups of closely related species and hybrid forms basing on differences of morphological parameters of leaves. Methods. Field, cluster analysis and tree graphics. Results. Willow species were grouped according to absolute parameters of leaf, and three groups of clusters were identified. The degree of affinity between species were assessed using values of an Euclidean distance. Distinctive features of leaf parameters were defined: length of a leaf blade (Ll), distance (cm) between the leaf tip and its maximum width (SDmxT) and the distance between the leaf tip (cm) and the line of its width that corresponds to the length of petiole (SLpT). Conclusions. Using the willow species collection as an example, diagnostically valuable quantitative parameters of leaves were revealed, the use of which allows to identify willow species and hybrid forms through PC applications.
Authors and Affiliations
M. V. Royik, V. V. Balykina
Формування структури врожаю гібридів кукурудзи за різних строків сівби
<p style="text-indent: 0.4cm; margin-bottom: 0.07cm; line-height: 0.39cm;" lang="ru-RU" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><strong>Мета</strong><span lang="en-GB"><strong>...
Characteristics of winter wheat varieties for resistance to causal agents and pests
Purpose. Studying and identifying winter wheat varieties that are resistant to causal agents of major diseases and pests. Methods. Laboratory analysis, field study. Results. On artificial infection backgrounds of causal...
Аналіз сортів ріпаку ярого (Brassica napus L. var. oleifera), представлених у Державному реєстрі сортів рослин України
<p style="text-indent: 0.4cm; margin-bottom: 0cm; line-height: 0.39cm;" lang="ru-RU" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><strong>Мета</strong><span lang="en-GB">. </span>Ви...
Stages of national varietal plant recourses forming in the State Legislative Regulation system of Ukraine during 1923-2013
The article deals with analysis of scientific publications in the field of plant breeding, seed production and variety testing, archival documents and published government regulations. The comprehensive study lack accord...
Direct induced androgenesis in culture in vitro in sugar beet (Beta vulgaris L.)
Purpose. To develop the method of direct induced androgenesis of sugar beet in culture in vitro. Methods. Biotechnological, cytological, breeding, statistical. Results. Specific for sugar beet components of the method of...