The new forms of gymnosperm and angiosperm woody plants at the Peter the Great Botanic Garden (Saint Petersburg, Russia)

Firsov, Gennady; Byalt, Viacheslav V.; Orlova, Larisa

doi:10.15393/j4.art.2019.6064

Hortus Botanicus

2019

DOI: 10.15393/j4.art.2019.6064

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The new forms of gymnosperm and angiosperm woody plants at the Peter the Great Botanic Garden (Saint Petersburg, Russia)

Gennady Firsov¹,

Viacheslav V. Byalt²,

Larisa Orlova³

Abstract: Аннотация: В статье дано описание 7 новых для науки форм (Larix decidua Mill. f. tortuosa L. Orlova, Byalt et Firsov forma nova, L. komarovii B. Kolesn. f. divaricata L. Orlova, Byalt et Firsov forma nova, L. lubarskii Sukacz. f. pendula L. Orlova, Byalt et Firsov forma nova, Magnolia kobus DC. f. pendula Byalt et Firsov forma nova, Malus sachalinensis (Kom.) Juz. f. divaricata Byalt et Firsov forma nova, Sorbus persica Hedl. f. pendula Byalt et Firsov forma nova, Cotoneaster tomentosus (Ait.) Lindl. f. pendul… Show more

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“…Karamysheva et al (2019a) did the same for Platycladus orientalis (L.) Franco and Thuja sutchuenensis Franch. In addition, Priyatkin et al (2018) developed an automatic analysis of digital X-ray images of English oak acorns for detection of microcracks and enzyme-mycosis exhaustion.The relationship between X-ray characteristics and growth indices (sprout length) of sprout oak acorns has been established. The characteristics of the individual structures and organs of Pinus sibirica seeds have been investigated.…”

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confidence: 99%

Comparative study of the fullness of dwarf Siberian pine seeds <em>Pinus pumila</em> (Pall.) Regel from places of natural growth and collected from plants introduced in northwestern Russia by microfocus X-ray radiography to predict their sowing qualities

Карамышева

Trofimuk

Priyatkin

et al. 2020

BioComm

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As a result of analysis of the quality of Pinus pumila seeds by the method of microfocus X-ray radiography in combination with the automatic analysis of digital X-ray images, it was found that the best characteristics of individual structures and organs of seeds were demonstrated in samples collected from trees growing at site 71 of BIN RAS; the worst — from seeds taken from South Sakhalin. The seeding qualities of Pinus pumila seed samples were determined by standard methods. Based on analysis of the characteristics of digital X-ray images of Pinus pumila seeds, it was found that a seed sample from site 71 BIN RAS was characterized by the high level of embryo area 4.19±0.49 mm2, maximum embryo to thalus ratio 60.95±7.45 %, high level of endosperm area 23.93±1.24 mm2, and maximum ratio square of embryo area 9.45 ±1.17 %. The same sample was characterized by a maximum weight of 1000 seeds and a maximum absolute and soil germination ratio, compared to other samples. The obtained data showed that Pinus pumila seeds collected from plants introduced in northwestern Russia by most parameters are not inferior or are even superior to seeds from the natural range.

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mentioning

confidence: 99%

Comparative study of the fullness of dwarf Siberian pine seeds <em>Pinus pumila</em> (Pall.) Regel from places of natural growth and collected from plants introduced in northwestern Russia by microfocus X-ray radiography to predict their sowing qualities

Карамышева

Trofimuk

Priyatkin

et al. 2020

BioComm

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The new forms of gymnosperm and angiosperm woody plants at the Peter the Great Botanic Garden (Saint Petersburg, Russia)

Cited by 1 publication

References 0 publications

Comparative study of the fullness of dwarf Siberian pine seeds <em>Pinus pumila</em> (Pall.) Regel from places of natural growth and collected from plants introduced in northwestern Russia by microfocus X-ray radiography to predict their sowing qualities

Comparative study of the fullness of dwarf Siberian pine seeds <em>Pinus pumila</em> (Pall.) Regel from places of natural growth and collected from plants introduced in northwestern Russia by microfocus X-ray radiography to predict their sowing qualities

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