scholarly journals FARKLI BAKTERİ VE HORMON UYGULAMALARININ Cornus alba ‘Sibirica’ ÇELİKLERİNİN KÖKLENMESİ ÜZERİNE ETKİLERİ

Author(s):  
Elif AKPINAR KÜLEKÇİ ◽  
Gürsel ÖZKAN ◽  
Melek EKİNCİ ◽  
İşik SEZEN ◽  
Recep KOTAN
Keyword(s):  
2017 ◽  
Vol 23 (2) ◽  
pp. 153-168 ◽  
Author(s):  
Zigmantas Gudžinskas ◽  
Lukas Petrulaitis ◽  
Egidijus Žalneravičius

AbstractMany woody plant species that originate from various regions of the world have been introduced in other regions or continents and are used in ornamental gardening, silviculture, erosion control, for fruit sources or other purposes. Woody plants selected for introduction usually originate from regions with similar climate conditions; therefore, after certain time lag they start to spread outside places of cultivation, become naturalized or even invasive. In addition to 77 woody alien plant species reported in Lithuania, ten new species were recorded and analysed in this paper. Information on the native and anthropogenic ranges, first record in Lithuania, size of populations, habitats, reproduction and naturalization of Aralia elata, Berberis thunbergii, Caragana frutex, Celastrus orbiculatus, Cornus alba, Cytisus austriacus, Hydrangea arborescens, Pinus strobus, Rhus typhina and Thuja occidentalis is presented. All these species have been introduced intentionally and are used mainly in ornamental gardening. Three of the reported species, Berberis thunbergii, Hydrangea arborescens and Thuja occidentalis, currently are casual species. Remaining seven species were recognized as naturalized in Lithuania, and five of these, i.e. Aralia elata, Celastrus orbiculatus, Cornus alba, Pinus strobus and Rhus typhina as well as Berberis thunbergii, which currently is treated as a casual, have very high or high probability of getting invasive. Constant survey of potential habitats, detection of new escaped alien plants, particularly of trees and shrubs, is the best way to reveal potentially dangerous species and make timely decisions for their control or eradication, if necessary.


2011 ◽  
Vol 90-93 ◽  
pp. 3262-3267
Author(s):  
Wen Yuan Xu ◽  
Long Sun ◽  
Li Qiang Mu

The drought resistance adaptation mechanism of highway greening plants was always the focal point which the researcher payed attention. This experiment took Cornus alba as the study object and examines its resistance to drought stress by using the potting and water control method. The researcher measured bond water content, water saturation deficit, relevant water content, relevant content of osmotic water, and osmotic potential when full turgor and turgor were both zero. Other water condition indexes also were analyzed systematically. Finally, a comprehensive evaluation on the drought resistance of Cornus alba by fuzzy mathematics’ anti-membership function was conducted. According to the experiment result, Cornus alba had the highest drought resistance at B-level treatment (soil water content: 53.60%), followed by D-level (soil water content: 29.90%) treatment. Cornus alba had strong endurance and resistance to drought stress. This study could provide a scientific basis for the future introduction of other urban greenbelt plants and the choice of excellent traits.


HortScience ◽  
1994 ◽  
Vol 29 (4) ◽  
pp. 248f-249
Author(s):  
Isabelle Duchesne ◽  
Jacques-André Rioux ◽  
Michèle Beaudry

Effects of fall fertilization programs on cold hardiness of young Cornus alba `Argenteo-marginata' and Weigela florida `Rumba' plants were examined. At the end of Summer 1992, four fertilization programs were applied to 1-year-old woody plants that were propagated in 1991 by cuttings. Fertilization treatments were as follows: 1) discontinuation of liquid fertilizer treatments on 30 Aug., 2) decreasing N concentration (100 to 0 mg·liter-1 of 20N–20P–20K) from 15 Aug. to 30 Sept., 3) constant N concentration (100 mg·liter-1 of 20N–20P–20K) from 15 Aug. to 30 Sept., and 4) high K concentration (110 mg·liter-1 of 7N–11P–27K) from 15 Aug. to 30 Sept. Whole plants were then removed from pots and roots were cleaned. Plants were then placed under freezing temperatures from 0 to –20C at 2C intervals, with plant samplings done three times during fall—at the end of September, October, and November. After the freezing test, plants were stored at –2C and repotted in May 1993 for winter injury evaluation. Preliminary results indicated that the four fertilization programs did not induce a significant effect on cold hardiness of the two species. However, it was clear that the degree of cold hardiness was different for each species: Weigela was ≈10 degrees less hardy compared to Cornus in September and October. In November, species demonstrated hardiness at temperatures less than –20C. Cornus also showed cold hardiness at less than –20C in October.


HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1048D-1048
Author(s):  
Calvin Chong ◽  
Peter Purvis

Plug-rooted liners of deutzia (Deutzia gracilis), dogwood (Cornus alba `Argenteo-marginata'), forsythia (Forsythia×intermedia `Lynwood Gold'), and ninebark (Physocarpus opulifolius) were grown in 6-L containers. There were 36 different treatment substrates formulated in factorial combinations: two types of paper mill sludge (raw or composted) each at three rates (25%, 33%, or 50%, by volume) mixed with one of three sources of municipal waste compost (cities of Guelph, Toronto, or Waterloo; 25%, 33%, or 50%), and the remainder consisting of one of two base supplements (pine bark or 1-year-old wood chips; 50%, 33%, or 0%). The containers were trickle-irrigated and fertilized with a controlled-release fertilizer. Dogwood (no treatment interaction and responding only to the main effect of compost sources) grew equally well with Toronto and Waterloo composts, but less well with the Guelph compost. Ninebark tended to grow better with Toronto compost, intermediate or similar with Waterloo compost, and least with Guelph compost. Forsythia grew equally well in all bark-based substrates, regardless of sludge type and rate or compost source. With wood-chip-based substrates, however, forsythia grew better with Waterloo than with Guelph compost, and better with raw than with composted sludge when mixed with Toronto compost. Deutzia responded similarly to most substrates, but grew marginally better with raw than with composted paper sludge when Waterloo or Toronto compost was present. Despite these differences in species responses, all plants were of marketable size at the end of the season. There was no sign of nutrient toxicity or deficiency due to any of the substrates.


1939 ◽  
Vol 17c (9) ◽  
pp. 305-311
Author(s):  
N. H. Grace

Indolylbutyric acid and oestrone were applied in dusts to dormant stem cuttings of Lonicera tartarica, Spiraea Vanhouttei, and Cornus alba, and in both dusts and solutions to cuttings of Ribes odoratum. Indolylbutyric acid had significant effects on the number of cuttings rooted and the number and length of roots per rooted cutting of three species. Further observations indicated that it also affected the fresh root weight of cuttings of Spiraea Vanhouttei and the green leaf weight of Ribes odoratum. Oestrone had no significant effect on rooting, but in solution treatment showed significant effects on the green leaf weight of Ribes odoratum, both alone and in interaction with indolylbutyric acid. Cuttings of Cornus alba failed to show any significant treatment effects.Dust and solution methods of treating cuttings were compared through the responses of Ribes odoratum. Dust treatment effected 62% rooting, solution 42%; there also was markedly greater leaf development following the use of dusts.


Author(s):  
Ki Cheon Kim ◽  
Tae-Bin Jeong ◽  
Singeun Kim ◽  
Kyung-Mi Kim ◽  
Minjun Choi ◽  
...  

Plants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 122
Author(s):  
Joanna Truba ◽  
Iwona Stanisławska ◽  
Marta Walasek ◽  
Wioleta Wieczorkowska ◽  
Konrad Woliński ◽  
...  

The fruits of some Cornus species (dogwoods) are used in traditional medicine and considered potential anti-diabetic and hypolipemic agents. The aim of the study was to determine the ability of extracts from Cornus alba (CA), Cornus florida (CF), and Cornus sanguinea (CS) to inhibit digestive enzymes namely α-amylase, pancreatic lipase, and α-glucosidase, as well as isolation of compounds from plant material with the strongest effect. In addition, the phytochemical profile and antioxidant activity of extracts from three dogwoods were compared with HPLC-DAD-MS/MS and DPPH scavenging assay, respectively. Among the aqueous-ethanolic extracts, the activity of α-amylase was the most strongly inhibited by the fruit extract of CA (IC50 = 115.20 ± 14.31 μg/mL) and the activity of α-glucosidase by the fruit of CF (IC50 = 38.87 ± 2.65 μg/mL). Some constituents of CA fruit extract, such as coumaroylquinic acid, kaempferol, and hydroxytyrosol derivatives, were isolated. Among the three species of dogwood studied, the greatest biological potential was demonstrated by CA extracts, which are sources of phenolic acids and flavonoid compounds. In contrast, iridoid compounds or flavonoid glycosides found in fruits of CF or CS extracts do not play a significant role in inhibiting digestive enzymes but exert antioxidant activity.


2021 ◽  
Vol 31 (5) ◽  
pp. 47-53
Author(s):  
K. V. Myronchuk ◽  
Ya. V. Henyk

Наведено результати досліджень видового складу, просторової, екологічної та вікової структури живоплотів урбанізованого середовища Чернівців. Здійснено комплексне оцінювання якісного стану та декоративності живоплотів у міських зелених зонах та запропоновано заходи з покращення їх декоративності, якісного стану і функціональності. Встановлено, що для дендрофлори живоплотів Чернівців характерне незначне видове різноманіття, зокрема 17 видів деревних рослин із 13 родів та 12 родин. В озелененні міста на територіях загального користування, а також на територіях державних установ і підприємств переважно формують живі огорожі із самшиту вічнозеленого (Buxus sempervirens L.), пухироплідника калинолистого (Physocarpus opulifolius (L.) Maxim.), свидини білої (Cornus alba (L.) Opiz.,), спіреї середньої (Sріraea media Schmidt.) та спіреї Вангутта (Spiraea vanhouttei Zab.). Переважна більшість живоплотів міста розміщена на територіях загального користування (48,8 %) та сформована із одного деревного виду – 98,3 %. За екологічною структурою найчисельнішою в живоплотах відносно трофності ґрунтового субстрату є група мезотрофних деревних рослин – 70,5 %, а відносно вологості ґрунтового субстрату – група мезофітних деревних рослин – 70,6 %. За просторовою структурою серед живих огорож міста найпоширенішими є однорядні – 83,5 % та середні за висотою живоплоти – 63,6 %. Частка бордюрних живоплотів, створених переважно із спіреї середньої, самшиту вічнозеленого та барбарису Тунберга (Berberis thunbergii DC.), є незначною та становить тільки 10,7 %. За віковою структурою в насадженнях міста найпоширенішими є 21-30-річні живоплоти – 57,9 %, а живих огорож віком понад 50 років не виявлено зовсім. Найвища оцінка декоративності у зелених зонах міста характерна для живоплотів, сформованих з барбарису Тунберга, бирючини звичайної (Ligustrum vulgare L.), садового жасмину звичайного (Philadelphus coronarius L.), сніжноягідника білого (Symphoricarpos albus (L.) Blake), спіреї середньої, спіреї Вангутта, свидини білої, свидини криваво-червоної (Cornus sanguinea (L.) Opiz.) та самшиту вічнозеленого. За якісним станом більшість живоплотів у зелених зонах Чернівців належать до категорії "добрих" – 43,0 %, однак частка живих огорож "незадовільного" якісного стану є досить значною та становить 22,3 %. Належне фінансування проведення необхідних агротехнічних заходів та ефективна садово-парково-господарська діяльність сприятимуть покращенню якісного стану, декоративності та естетичної привабливості живоплотів, підвищення їх стійкості до несприятливого антропогенного впливу в урбанізованому середовищі.


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