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Rezul'taty issledovanijj tekhnologicheskogo processa razdelenija semjan sornjaka ot semjan rapsa

100%

Duganec V.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 5

2

The effects of temperature on the dormancy and germination of Cirsium arvense [L.] Scop. seeds

67%

Bochenek A., Golaszewski J., Piotrowicz-Cieslak A. I., Gorecki R. J.

Acta Societatis Botanicorum Poloniae

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2009

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tom 78

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nr 2

105-114

The ecophysiological regulation of seed dormancy in perennial species and those with a varied life cycle has not been studied in detail yet. That is why an attempt has been made to determine the Cirsium arvense seed water relations during stratification and afterripening at different temperatures and germination at constant or fluctuating temperatures on the basis of the hydrotime model. The obtained results showed that breaking of the primary dormancy of achenes took place only during the first stratification month at moderate temperatures, mainly due to an increase in the average water-stress tolerance in a seed population. The induction of secondary seed dormancy during after-ripening at all temperatures resulted mostly from a substantial loss of the seeds' ability to tolerate water stress. Fluctuating temperatures affected neither seed germination nor the hydrotime model parameters. The analysis of the variations of hydrotime model parameters allows a better understanding of the physiological basis of seed dormancy relief and induction.

3

The effect of tillage simplifications and mineral fertilisation level on the number and distribution of weed seeds in soil

67%

Bujak K., Frant M., Budzynska B.

Acta Agrobotanica

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2008

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tom 61

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nr 2

In the present paper, results of a study on the effect of a reduction in the number of ploughings in a crop rotation on the seed weed bank in the soil are presented. The study was carried out in the second and fourth year of a crop rotation (potato– spring wheat– pea– winter wheat). A reduction in the number of ploughings to three in the crop rotation decreased weed infestation of the plough layer, whereas when only one ploughing was made there was clearly more weed diaspores in the soil than after plough tillage. In the fi rst period of the study, the mineral fertilisation level did not differentiate the weed seed bank in the soil, whereas after the end of the rotation its signifi cant increase was noted as a result of more intensive fertilisation. In all the experimental treatments, diaspores of Chenopodium album, Viola arvensis, Galinsoga sp. and Apera spica-venti occurred in greatest numbers.

4

Foraging habitat requirements of European Turtle Dove Streptopelia turtur in a Mediterranean forest landscape

67%

Gutierrez-Galan A., Sanchez A. L., Gonzalez C. A.

Acta Ornithologica

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2018

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tom 53

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nr 2

Land use changes occurring in Europe in recent decades are generating important changes in the forest landscape characteristics and are having important effects on avian species richness and abundance. This is particularly important for some bird species of particular conservation concern that require heterogenous landscapes where breeding habitats are proximal to foraging habitats. Among these birds, the European Turtle Dove Streptopelia turtur is particularly important because of its marked population decline. In southern Europe, forest landscapes have been considered important breeding areas for Turtle Doves. We assessed the influence of the foraging area characteristics — distance to cereal crops and wild seed species abundance — and water availability on Turtle Dove breeding habitat suitability in a Mediterranean forest landscape in southern Spain. Forty-six point locations were surveyed during the spring of 2014 and 2015 on two nearby farms of a forest protected area. The average local abundance of Turtle Doves found at each point location was 1.25 ± 1.31 males, and it was significantly higher at the point locations closest to cereal crops, as well as at nesting sites where the wild seed species included in its local diet were abundant, especially Echium plantagineum. Distance to water in the studied range (average distance 475 m) did not show a significant effect on Turtle Dove local abundance, although the high availability of water in the study area could have a positive influence on the overall Turtle Dove breeding habitat suitability. To benefit Turtle Dove breeding habitat suitability, cultivated areas with cereals/legumes near those forest areas where Turtle Doves reproduce should be promoted. Likewise, the promotion of those herbaceous species that are locally important in the Turtle Dove diet, available, for example, through specific grazing management, should be taken into account when nesting habitat restoration is designed in forest areas, regardless of whether the distances to food resources are long.

5

Changes in the number of weed seeds in soil under different tillage systems of winter wheat

59%

Wojciechowski W., Sowinski J.

Journal of Plant Protection Research

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2005

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tom 45

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nr 2

83-92

The aim of performed research was to evaluate weed seedbank in soil under the influence of four different winter wheat tillage systems. Winter wheat was grown in the following cultivation systems: A – monoculture with direct drilling into white clover mulch; B – monoculture with direct drilling into wheat stubble; C – monoculture with conventional tillage; D – crop rotation with conventional tillage. It was shown that pre-sowing wheat tillage had a more considerable effect on weed species and weed seedbank in soil than type of crop rotation. The least seedbank was observed when plough system was replaced by direct drilling. In the soil layer of 0–20 cm, under wheat no-plough tillage, 20.3% less weed diaspores wasfound compared to monoculture with plough tillage and by 40.1% lessthan in crop rotation. The plough tillage increased amount of weed diaspores in the whole plough layer, while direct drilling increased it only in 0–1 cm of soil layer. After direct drilling of wheat into stubble (B) the number of weed diaspores in 1 dcm3 of soil in 0–1 cm layer was over twofold higher than in direct sowing in mulch (A), and threefold higher than in crop rotation (D) and almost six times higher than in wheat monoculture with conventional tillage (C). Dominating weed species in the soil over the types of wheat cultivation systems were: Chenopodium album L., Amaranthus retroflexus L., Apera spica-venti L., Lamium purpureum L., and Viola arvensis Murr.

6

Ecophysiological conditions of seed dormancy of weeds from the Asteraceae family

59%

Bochenek A.

Rozprawy i Monografie. Uniwersytet Warmińsko-Mazurski w Olsztynie

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2010

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tom 155

1-126

7

Wpływ systemów uprawy na liczbę i występowanie nasion chwastów w glebie

51%

Sekutowski T.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2009

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tom 543

W przeprowadzonych badaniach stwierdzono różnice w liczebności i rozmieszczeniu poszczególnych gatunków nasion chwastów w zależności od sposobu uprawy roli. Największą liczbę nasion chwastów stwierdzono w próbkach gleby pobranych z warstwy 0-5 cm (uprawa zerowa i uproszczona). Natomiast w uprawie tradycyjnej nasiona były rozmieszczone równomierne w całej warstwie 0-20 cm.

8

Wplyw systemow uprawy roli na ilosc i rozmieszczenie nasion chwastow w glebie

51%

Wrzesinska E., Dzienia S., Wereszczaka J.

Acta Scientiarum Polonorum. Agricultura

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2003

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tom 02

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nr 1

169-175

Ograniczanie wyników

Rezul'taty issledovanijj tekhnologicheskogo processa razdelenija semjan sornjaka ot semjan rapsa

The effects of temperature on the dormancy and germination of Cirsium arvense [L.] Scop. seeds

The effect of tillage simplifications and mineral fertilisation level on the number and distribution of weed seeds in soil

Foraging habitat requirements of European Turtle Dove Streptopelia turtur in a Mediterranean forest landscape

Changes in the number of weed seeds in soil under different tillage systems of winter wheat

Ecophysiological conditions of seed dormancy of weeds from the Asteraceae family

Wpływ systemów uprawy na liczbę i występowanie nasion chwastów w glebie

Wplyw systemow uprawy roli na ilosc i rozmieszczenie nasion chwastow w glebie