Monitoring nitrogen variability in two Mediterranean ornamental shrubs through proximal fluorescence-based sensors at leaf and canopy level

There is a need to correct a historical imbalance of ornamental shrubs and, in particular, hybrids and cultivars of genus Syringa L. in the city of Novosibirsk. Recent ambitious projects of reconstruction of the present green areas and creating the new ones have enhanced the relevance of testing the cultivars which have been conducted at the CSBG SB RAS for 35 years. In order to study further the features of biology and freeze resistance under continental climate of the south of West Siberia, CSBG’s collection was completed with 54 new samples of cultivars of genus Syringa from 5 botanical institutions and nursery gardens located in the different climatic zones.

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Perspectives of the advanced functional using of some ornamental bushy crops

Horticulture: Interdepartment Subdject Scientific Collection ◽

10.35205/0558-1125-2021-76-212-222 ◽

2021 ◽

pp. 212-222

Author(s):

V.M. Yezhov ◽

◽

V.I. Dubrovskyi ◽

O.Yu. Ansieiev ◽

O.A. Olenich ◽

...

Keyword(s):

Low Temperatures ◽

Left Bank ◽

New Variety ◽

Common Lilac ◽

Significant Yield ◽

The Common ◽

Ornamental Shrubs ◽

The Rose ◽

Selection Of

The authors present the results of the collection’s formation of some ornamental shrubs, long-term phenological observations of them and the selection of the best forms and breeding hybrids in the Left-Bank Lisosteppe of Ukraine. In particular, the characteristic of the vegetation of 20 varieties of common lilac collection is given. The estimation of the terms and duration of the crop flowering enable to divide its varieties into groups of early, average and late flowering. The high decorative value of most of the strains has been described as well as their resistance to low temperatures and pests. The additional analysis of the latest literature data has shown the significant yield of aromatic substances in the common lilac plant, with the predominance of alkanes and lilac alcohol. The results have been presented of 70 rose cultivars of adaptation to the growing zone conditions. There are 20 promise varieties of the crop, which are characterized by high decorative value, resistance to pathogens and low temperatures and duration of flowering. The characteristics of the new variety of roses of the floribunda group – Olexandra has been given created by the authors. Along side with the high decorative value, different types of the rose plant provide the significant yield of aromatic substances with the domination of alkanes, monoterpenes and 2-phenylethanol. The analysis of the literature data also has shown the presence of aromatic substances in the jasmine and mock-orange plants. The first is characterized with esters based on benzene, cis-jasmon and isophytol, the second – with some sesquiterpenes and epi-13-manol. The further research included the phenological evaluation of the of white cedar and juniper collection. The best selected forms were characterized with decorativeness, resistance to frost, pests and pathogens. The literature data have shown, that the aromatic complex of the crops cultures includes mainly monoterpenes and their derivatives – alcohols and ketones. As a result, it was concluded that it is necessary to expand research with ornamental bushy crops in the direction of evaluating of their aromatic properties.

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BIOLOGICAL AND ECOLOGICAL FEATURES OF THE GROWTH OF THE HYDRANGEA L. GENUS REPRESENTATIVES IN THE PARK ZONES IN THE MIDDLE CIS-URALS CITIES

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2021/6/19-22 ◽

1970 ◽

pp. 19-22

Author(s):

N. M. Kuz'mina ◽

А. V. Fedorov

Keyword(s):

Green Building ◽

Botanical Garden ◽

Plant Introduction ◽

Climatic Conditions ◽

Middle Urals ◽

The Middle Urals ◽

Ecological Features ◽

Growing Conditions ◽

Ornamental Trees ◽

Ornamental Shrubs

Representatives of the genus Hortensia (Hydrangea L.) are ornamental shrubs that are highly valued in landscape construction. Today, it is important to create new and reconstruction of existing recreational areas for the recreation of the population. This leads to an increase in the demand for ornamental trees and shrubs as a material for green building. In the Middle Urals, the species of Hydrangea are still rarely used due to the poor knowledge of the bioecological characteristics of various species and varieties under the given growing conditions. The paper gives a characteristic of varying degrees of adaptability to unfavorable abiotic and biotic environmental factors of 14 species and varieties of Hydrangea (Hydrangea) from the collection of the Department of Plant Introduction and Acclimatization, which was planted on the territory of the UdmFIC UB RAS in Izhevsk in 2017. For decorative features, a technique developed by the staff of the Botanical Garden of Ufa was used. Methodological developments on decorativeness of various cultures are taken as a basis. The characteristics of meteorological conditions during the years of research (2019-2020) are given. According to the research results, 7 representatives of the Hydrangea genus were noted as the most promising candidates for green construction in the cities of the Middle Urals. Hydrangea paniculata (H. Paniculata): ‘Lime Light’. ‘Pinkie Winky’, Weems Red ’, Vanilla Fries’. Hydrangea serrata (H. Serrata) 'Bluebird', Hydrangea petiolar (H. petiolaris) and hydrangea tree (H. arborescens). According to the results of two years of observation (2019-2020), these taxa had a decorativeness rating of 50 to 73 points and were assigned to the II group of decorativeness, winter hardiness (5 points). It was noted that unfavorable climatic conditions (moisture deficit, cool May and June 2020) reduced the average decorative score of the entire collection of representatives of the genus Hydrangea by 10 points. This was mainly due to the quality of the flowering.

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