The Structure and the Sanitary State of Ginkgo Biloba (Ginkgo biloba L.) Tree Stand in the Arboretum VLNS "Berezinka" of the Mukachevo State Forestry Enterprise

Zayachuk, V.Ya.; Khomiuk, P.G.; Khomiuk, А.P.; Pogribnyj, O.O.; Yurkevych, A.O.

doi:10.15421/40260506

Cited by 1 publication

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“…The ecological amplitude of the species is quite broad, despite the fact that G. biloba enjoys fertile well-aerated soils of medium mechanical composition. According to the research results (Zayachuk et al, 2016) on biometric indices of G. biloba in the arboretum of VLNC "Berezinka" State Enterprise "Mukachevo Forestry", a low degree of crown deflation and a good sanitary state of the G. biloba trees were detected. G. biloba leaves and wood contain insect repellent substances that allow the use of the plant leaves and parts in compost (Si at al., 2017) to improve soil quality and root crop cultivation (Çavuşoğlu & Karaferyeli, 2015).…”

Section: Discussionmentioning

confidence: 98%

“…Certain limitations on G. biloba cultivation may be this plant is photophilic and thermophilic. But the experiments conducted show that the climatic conditions the Ukrainian North-East are quite favourable for it, as well as other regions of Ukraine (Zayachuk et al, 2016). Taking into account the value of the investigated relic species, the promise and success of its introduction, it can be argued that the creation of G. biloba plantations for the purpose of harvesting leaves for pharmaceutical purposes would be economically significant.…”

Section: Discussionmentioning

confidence: 99%

“…The worst growth indicators are for specimens on dry, sealed soils. Thus, among the trees of the four growth groups growing under optimal growth conditions the two-leafing ginkgo are attributed to the trees of the first magnitude, the height of which is more than 25 m, since the specimens of this species reach 30-40 m and a diameter of 3.0-4.5 m, although trees reach 20-25 (30) m high in the West Ukraine conditions (Zayachuk et al, 2016).…”

Section: Introductionmentioning

confidence: 93%

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Optimization of Ginkgo biloba cultivation technology in open soil conditions

Kovalenko

Клименко

Yaroschuk

et al. 2018

Regul. Mech. Biosyst.

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In recent years, interest in cultivating Ginkgo biloba L. as a medicinal plant has grown in Ukraine, and improvement of the technology of growing this plant in the conditions of the North-East of Ukraine is a relevant problem. The purpose of this article to present research on the morphological structure, growth and viability of young G. biloba plants in grown from seeds by different technologies and comparative analysis of growth and development of G. biloba plants under greenhouse conditions and on open soil. The experiment on G. biloba cultivation was initiated in 2014 in three variants (the plants were grown from the seeds). Variant No 1: G. biloba growing in a greenhouse at 60–80% humidity and temperatures not below +27 ºС; shading (shading level 60%) by green agronetting. Variant No 2: growing in open soil; shading (shading level 60%) by green agronetting; the climatic conditions were typical for Sumy region. Variant No 3: growing in open soil; there was no shading; climatic conditions were typical for the Sumy region. Plant analysis was conducted in June 2018. The following morphometric parameters of G. biloba plants were measured: plant height, annual growth of shoots, number of leaves, leaf size and leaf area, phytomass of the shoots, phytomass of leaves and phytomass of the stem, diameter of the shoots. The sampling used 60 samples. The leaf area was determined by the method of drawing contours on millimeter paper. Statistical processing of research results was carried out by generally accepted modern methods of mathematical statistics using dispersion, correlation, regression and vital analysis. In the conditions of the Ukrainian North East, G. biloba seedlings can be grown successfully in greenhouses and open soil, both with 60% shade by agronetting and without it. Differences between the plants grown in such conditions are insignificant and statistically unreliable. The obtained three to four year old G. biloba seedlings grown using different technologies were 25–30 cm in height and formed 13–17 leaves per plant. The seedlings were of quite high viability (Q is 0.22–0.30) and morphostructural integrity (67.8%). The output of viable seedlings (vital classes “a” and “b”) in variant 1 was 60%, variant 2 45% and variant 3 60%. Ecological-cenotic stability of G. biloba was observed repeatedly, though certain limitations on G. biloba cultivation may be that the plant is photophilic and thermophilic. But the conducted experiments show that the climatic conditions of the Ukrainian North-East are quite favourable for this species. Based on the data obtained for the Ukrainian North-East, it is possible to recommend the technology of growing G. biloba seedlings in open soil without agronetting as quite effective and low-cost.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

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