Variations and Correlations between the Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz, Z.; Żuk, Zbigniew; Kusińska, E.

doi:10.20944/preprints201808.0400.v1

Cited by 3 publications

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“…середнє значення з помилкою та P. pungens з насаджень Польщі складала від 93 до 116 шт. [21]. Частка повного насіння у Р. abies та P. pungens варіювала в межах 20,2-31,2 % та 11,5-18,9 %.…”

Section: рис 1 картосхема розташування досліджених насаджень Pісеа unclassified

“…В природних насадженнях маса насіння Р. abies складає 7,7 г [23], що на 11,6 % більше порівняно з рослинами ботанічного саду, тоді як у інтродукованих умовах дендрарію Алматинської області у Р. abies цей показник -4,0 г, що менше на 42,0 % відповідно [15]. Аналогічні результати маси насіння до наших досліджень для Р. abies та P. pungens наведені у роботі Kaliniewicz (2018). Слід зазначити, що від маси та розмірів насіння в значній мірі залежать життєздатність сходів та подальший розвиток сіянців [25].…”

Section: рис 1 картосхема розташування досліджених насаджень Pісеа unclassified

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Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

Нuseіnova¹

2018

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Reproductive capability is considered as one of indicators of successful introduction; it helps to evaluate adaptation potential of plants, especially in techogenic conditions. The aim of our work is to research morphometric parameters of cones, profitability and seed quality of Рісеа аbies та P. pungens in the plantations with various levels of aerotechnogenic influence in conditions of an industrial city in the steppe zone of Ukraine. The objects of the studying were the cones of 30–40-year-old trees of P. аbies та P. pungens from eight different plantations situated along the whole city of Kryvyi Rih (126 km) and having various levels of technogenic pollution. We revealed that the maximal length of cone in two investigated species (108,4 and 88,7 mm respectively), width (28,6 and 24,7 mm); the highest seedling vigour (41,0 and 7,2 %), laboratory germination (54,2 and 20,6 %), seed mass (6,9 and 4,2 g), and length of germ (18,5 and 13,8 mm) are noted in the trees from Botanical Garden. The minimal values of all the same indices were ascertained for the trees growing near the metallurgical combine “ArcelorMittal Kryvyi Rih”: length of cones – 92,3 and 73,9 mm; width of cones – 26,2 and 22,4 mm; as well as the lowest seedling vigour (2,4 and 1,4 %); laboratory germination (5,0 and 2,0 %), seed mass (5,4 and 3,4 g), and length of germ (12,6 and 5,4 mm). The general seed quantity for a cone of P. аbies та P. pungens, in all the plantation types, varied from 203,9 to 217,2 seeds and from 198,6 to 204,3 ones respectively. The least part of fertile seeds (11,5–13,3 %), and the biggest part of sterile (56,5–58,7 %) and underdeveloped (29,8–30,1 %) ones were noted in the plants of P. pungens directly exposed to emissions of industrial enterprises; for the plants of P. abies the same indices were 20,2–22,5 %; 51,5–52,6 % та 26,0–27,2 % respectively. Therefore, increasing level of techogenic pollution by air pollutants, which is observed during some last years, oppresses the generative sphere of species of genus Рісеа in conditions of the steppe zone of Ukraine.

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Section: рис 1 картосхема розташування досліджених насаджень Pісеа unclassified

Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

Нuseіnova¹

2018

vsllr

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The effect of seed thickness alignment on the uniformity of planting materia

Golev,

Goleva,

Ivannikov

et al. 2024

BIO Web Conf.

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The results of studies on the effect of calibration of Scots pine (Pinus sylvestris) seeds by size (thickness) on the yield of standard seedlings are presented in order to assess the effect of the lattice-free technology of calibration of scots pine seeds on the yield of standard seedlings when growing them in a nursery. The seed batch of scots pine before sowing was calibrated on an experimental sample of a lattice-free separator in size (thickness). The size gap in the fractions was determined experimentally using end measures and an electronic caliper, based on the minimum and maximum sizes (thickness) of the seeds. As a result, two fractions of seeds were obtained. The resulting seed fractions were sown on nursery areas. Uncalibrated seeds were used as a control. It was found that the highest yield of standard seedlings (94-98%) was observed when using calibrated seeds regardless of the fraction. When sowing with uncalibrated seeds, the yield of standard seedlings was only 64-79%. The height of seedlings grown from uncalibrated seeds varied from 5 to 32 cm, calibrated (large fraction) – from 13 to 23 cm, calibrated (small fraction) – 10 to 13 cm. The diameter of the root neck in crops with uncalibrated seeds varied from 1.86 mm to 11.94 mm, calibrated large seeds – from 3.88 to 4.56 mm, calibrated small seeds – from 2.99 to 3.41 mm.

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The practice of using a sieveless separator for pre-sowing treatment of common pine seeds (Pinus sylvestris)

Golev

Bukhtoyarov

Ivannikov

2020

IOP Conf. Ser.: Earth Environ. Sci.

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The paper presents the results of studies on the effect of calibrating Scots pine (Pinus sylvestris) seeds on the morpho-biological characteristics of seedlings. The studies were carried out in 2017-2019. Scots pine seeds were used as the object of research. In the course of the research, laboratory and field methods were used. The seeds were calibrated using a sieveless separator, which makes it possible to obtain several tens of seed fractions with a size gap of 0.02 mm. It was found that plants of large seeds were characterized by a higher starting growth. Throughout the growing season, the advantage of these fractions persisted. Due to the higher growth rate of small fraction plants, the difference between plants decreased by the end of the growing season. By the end of the first year of vegetation, there was some advantage of large seedlings, the height of which varied from 6.95 cm (second fraction) to 7.18 cm (fourth fraction). The seedlings of these fractions were characterized by the highest uniformity (17.0%). At the end of the second growing season, the most intensive growth was noted in seedlings of large seeds, due to which a large planting material is formed, characterized by high uniformity.

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Variations and Correlations between the Physical Properties of Seeds of Eleven Spruce Species

Cited by 3 publications

References 34 publications

Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

The effect of seed thickness alignment on the uniformity of planting materia

The practice of using a sieveless separator for pre-sowing treatment of common pine seeds (Pinus sylvestris)

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