scholarly journals The evaluation of ontogenetic and vitality structures of Scilla bifolia l. coenopopulations on the territory of Sumy geobotanical region

2017 ◽  
Vol 0 (3 (6)) ◽  
pp. 12-17
Author(s):  
Oleksiy Kholodkov
Keyword(s):  
2017 ◽  
Vol 35 (0) ◽  
Author(s):  
H. YILDIRIM ◽  
K. YETISEN ◽  
A. ÖZDEMIR ◽  
C. ÖZDEMIR

ABSTRACT In the present study Scilla luciliae, S. forbesii, S. sardensis, S. siehei, Scilla x allenii and S. bifolia are compared anatomically. Some differences have been found in root, scape, and leaf anatomy of the taxa, and commented. S. luciliae, S. forbesii, S. sardensis and S. siehei have a metaxylem at the center of the root, others have 3-4 number metaxylem. Vascular bundles in two row in S. luciliae and S. forbesii in a single row in S. sardensis, Scilla x allenii and S. bifolia though in three rows in S. siehei. Aerenchyma tissue is present in mesophyll of five taxa leaf except S. sardensis. The anatomical variations in the taxa have been investigated by means of numerical methods (Analysis of variance and Pearson correlation). By the analysis of the investigated taxa from 12 anatomy related characters, it has been also found that the results from numerical analysis of anatomy characters can provide additional evidences, which correspond to the anatomy for the recognition of the taxa.


2016 ◽  
Vol 1 ◽  
pp. 34-39
Author(s):  
Victoria Gnjezdilova ◽  
Oksana Nespljak ◽  
Vira Bunjak ◽  
Ljubov Makhovska

Abstract. In the article were presented the results of studying the early spring synusias in the forests of Fageto-Carpineto-Querceta roboris subformation on the Pricarpathian territory. In the studied subformation were separated five associations: Fageto-Carpineto-Quercetum roboris galiosum odorati, Fageto-Carpineto-Quercetum roboris caricetum pilosae, Fageto-Carpineto-Quercetum roboris vincosum, Fageto-Carpineto-Quercetum roboris galeobdolosum, Fageto-Carpineto-Quercetum roboris hederosum. The revealed early spring synusias are formed by the following herbal species: Leucojum vernum L. (Amaryllidacea), Galanthus nivalis L. (Amaryllidacea), Dentaria glandulosa Waldst. et Kit. (Brassicaceae), Anemone nemorosa L.(Ranunculaceae), Scilla bifolia L. (Liliaceae), Isopyrum thalictroides L. (Ranunculaceae), Corydalis cava (L.) Schweigg. Koerte (Papaveraceae) та Gagea lutea (L.) Ker.-Gawl. (Liliaceae). It appears before the leaves blooming and forms the specific white-lilac-blue aspect. Galanthus nivalis L. synusias develops the first and then in the third decade of March develops the group with Anemone nemorosa L. domination. Last years as the result of the negative anthropogenic influence the number of Leucojum vernum L. and Galanthus nivalis L. groups – the rare ephemeroids put to the Ukrainian Red book was abruptly shortened.


2020 ◽  
Vol 79 (1) ◽  
pp. 55-58
Author(s):  
Kadriye Yetişen ◽  
Hasan Yıldırım ◽  
Canan Özdemir

In the study, Puschkinia scilloides Adams, P. bilgineri Yıldırım, and P. peshmenii Rix et B. Mathew were compared anatomically. Although the stem vascular bundles were arranged in two rows in P. peshmenii, they can observed in three rows in P. scilloides and P. bilgineri. In addition, some differences were found, such as the metaxylem number in the root, number of vascular bundles in the scape, presence of raphide crystals, and number of protruding epidermis cells at the tip of the leaf. These differences have been found to be taxonomically useful for distinguishing these species. Moreover, similarities and differences between Puschkinia Adams and the taxonomically closely related Scilla L. section Chionodoxa Boiss. and Scilla bifolia L. taxa were also discussed.


Author(s):  
Oleksij Kholodkov

Повідомляється про історію фітопопуляційних досліджень у широколистяних лісах Сумського геоботанічного округу, що започатковані у 80-х рр. ХХ ст. й проводилися ботаніками Сумського національного аграрного університету під керівництвом доктора біологічних наук Ю. А. Злобіна (І. Б. Сухим, М. Г. Баштовим, В. І. Троценком, В. Г. Скляр). Серед головних досягнень їхньої наукової діяльності – отримання для досліджуваного регіону ґрунтовної інформації про стан і динаміку популяцій низки видів судинних рослин, а також апробація та вдосконалення методології комплексного фітопопуляційного аналізу. Об’єкти досліджень – домінанти, співдомінанти й підріст деревних рослин, а також неморальні трави. Пріоритетним напрямом подальших фітопопуляційних досліджень на території округу визначено вивчення рідкісних і зникаючих видів судинних рослин. Ці дослідження в широколистяних лісах регіону розпочато у 2014 р. Об’єктами досліджень стали Allium ursinum L., Lunaria rediviva L. – види, занесені до Червоної книги України, та Corydalis marschalliana Pers., Dentaria quinquefolia M. Bieb., Scilla bifolia L. – види, уключені до Списку рослин і грибів, що підлягають особливій охороні на території Сумської області.


Biologia ◽  
2007 ◽  
Vol 62 (4) ◽  
Author(s):  
Patrik Mráz

AbstractThird part of chromosome number and DNA ploidy level reports from Central Europe comprising whole Carpatho-Pannonian region includes the data for following taxa: Scilla bifolia s. str. (2n = 18), S. bifolia agg. (2n = 36, 54), S. drunensis subsp. drunensis (2n = 36), S. drunensis subsp. buekkensis (2n = 36), S. kladnii (2n = 18) and S. vindobonensis (2n = 18) by J. Kochjarová from Austria, Slovakia and the Czech Republic (nos. 27–32); Campanula macrostachya (2n = ca 32) and Erysimum diffusum (2n = 14, 28) by E. Michalková from Hungary (nos. 33–34).


2010 ◽  
Vol 62 (1) ◽  
pp. 175-183 ◽  
Author(s):  
Zorica Popovic ◽  
J.L. Lindquist

The ecophysiological model INTERCOM was evaluated for its suitability in predicting the growth of perennial forest herbs. A field experiment was conducted to obtain data on photosynthesis and growth parameters of two spring flowering understorey geophytes. Results were used to parameterize the model and its performance was evaluated using the average normalized difference (AE) between predicted and observed biomass and the leaf area index. The model was assumed to provide accurate simulations if the AE was smaller than 0.4. Adjusting the photosynthetic intensity parameters in the model to reflect observed changes in photosynthesis throughout the growing period resulted in the accurate prediction of Scilla bifolia and Arum maculatum biomass (AE=0.13 and AE=0.021, respectively) and LAI (AE=-0.16 and AE=-0.08, respectively). Ecophysiological models may be useful tools for predicting the biomass accumulation of forest understorey species in response to varying environmental conditions, which could be useful for monitoring forest ecosystem health.


Author(s):  
Miljana R. Đorđević ◽  
Dragan B. Zlatković ◽  
Niko S. Radulović
Keyword(s):  

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