Temat: seedling quality - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Effects of different methods of site preparation on natural regeneration of Pinus sylvestris in Eastern Poland
Autorzy:: Aleksandrowicz-Trzcinska, M.
Drozdowski, S.
Brzeziecki, B.
Rutkowska, P.
Jablonska, B.
Tematy:: natural regeneration
Pinus sylvestris
Scotch pine
seedling density
seedling growth
seedling quality
soil scarification
Polska; Pokaż więcej
Data publikacji:: 2014
Powiązania:: https://bibliotekanauki.pl/articles/41158.pdf Link otwiera się w nowym oknie
Źródło:: Dendrobiology; 2014, 71
1641-1307
Pojawia się w:: Dendrobiology
Opis:: Mechanical site preparation (MSP) is commonly used to enable forest regeneration of clear-cuts. Less intense methods may be more suitable from an environmental point of view, but such a method can result in the lack of natural regeneration. We compare the influence of three MSP methods on natural regeneration of Scots pine. The methods differ in their degree of soil disturbance. The effects of MSP by forest plough (FP), active plough (AP), and forest cutter (FC) on density, quality, and biometric parameters of one-year old seedlings were determined. The highest density of seedlings was obtained in the FP treatment (188,000 seedlings ha–1). The seedling density was significantly lower in the AP method (121,000 seedlings ha–1), and in the FC variant (36,000 seedlings ha–1). The best quality seedlings were found in the FC variant, and the worst – in the FP treatment. Most biometric parameters of seedlings did not differ by MSP method, except for the root length and root:shoot ratio. By the end of growing season, in the FP treatment, 1-year old seedlings formed a top bud more than twice as often as the seedlings from the AP and FC treatments. The FP method led to the best Scots pine natural regeneration. The results obtained in the FC variant were not as good as in the FP method, though they were still acceptable from the silvicultural point of view. The FC method was the least intensive method of site preparation, yet it is considered the most appropriate from the environmental (soil protection) point of view.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Jakość sosny zwyczajnej, buka zwyczajnego i dębu szypułkowego wyhodowanych z siewu na glebie leśnej o różnym stopniu zagęszczenia
Quality of Scots pine, European beech and pedunculate oak grown from sowing on soil with different compaction levels
Autorzy:: Banach, J.
Kormanek, M.
Jazwinski, J.
Tematy:: ground contact pressure
seedling quality
sturdiness quotient
S/R
DQI
nacisk jednostkowy
jakość sadzonek
wskaźnik wytrzymałości; Pokaż więcej
Data publikacji:: 2021
Powiązania:: https://bibliotekanauki.pl/articles/2142611.pdf Link otwiera się w nowym oknie
Źródło:: Leśne Prace Badawcze; 2020, 81, 4; 167-174
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Opis:: In this study, we explore the effect of soil compaction on the growth of seedlings of Scots pine Pinus sylvestris l., European beech Fagus sylvatica L. and pedunculate oak Quercus robur L. On the experimental plots, ground contact pressures ranging from 0 to 250 kPa was applied on the soil. The applied pressure resulted in an increase in soil compaction between 1.02 to 1.19 g cm–3, which reflected pressures exerted by the undercarriage of vehicles used in logging. We then measured the seedlings as well as the dry weight of the roots and the above-ground parts. Using this data, we calculated the following quality indicators for each seedling: SQ – sturdiness quotient, S/R – shoot to root dry mass, DQI – Dickson quality index. For pedunculate oak, the SQ value significantly improved with increasing soil compaction, whereas no differences in the other two indicators were observed. In case of the European beech, the best value of SQ and DQI were observed at a soil density of 1.11 g cm–3, whilst no significant difference for the S/R coefficient could be found. Completely different results were obtained for Scots pine. The most favorable growth was observed when no pressure was applied. However, the SQ and S/R ratios even exceeded the values commonly considered acceptable. Our results therefore indicate that the values of seedling quality indicators are indeed influenced by soil compaction. At a soil compaction of 1.11 g cm–3, the share of seedlings with the SQ value below the critical level was the highest, but a similar relationship could not be confirmed for the other indicators. The response of the seedlings to compaction is likely to be species specific.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The effects of temperature and exogenous auxin on cutting propagation of some junipers
Autorzy:: Güney, D.
Chavoshi, S.H.
Bayraktar, A.
Atar, F.
Tematy:: Ornamental plant
cutting propagation
greenhouse conditions
quality seedling; Pokaż więcej
Data publikacji:: 2021
Powiązania:: https://bibliotekanauki.pl/articles/2078276.pdf Link otwiera się w nowym oknie
Źródło:: Dendrobiology; 2021, 86; 29-38
1641-1307
Pojawia się w:: Dendrobiology
Opis:: From past to the present, cultural, medicinal, landscape and culinary use of junipers has contrib- uted to it being one of the most widely distributed woody plants in the world. Therefore, it is so important that finding appropriate production methods to obtain quality seedlings in line with the usage area. In the present study, it was tried to determine the best conditions and applications on propagation by cuttings of three juniper taxa including Juniperus communis L. ‘Hibernica’, Juniperus chinensis L. ‘Stricta’, and Juniperus chinensis L. ‘Stricta Variegata’. For this purpose, two different greenhouse treatments (Greenhouse-1 with the air temperature at 20±2°C, rooting table temperature at 25±2°C and humidity level at 70±2%; Green- house-2 with the air temperature at 20±2°C, rooting table temperature at 20±2°C and humidity level at 70±2%) and different auxin applications (Indole-3-Butyric Acid, Indole-3-Acetic Acid and α-Naphthalene Acetic Acid at concentrations of 3000 and 5000 ppm) were designed. The highest rooting percentages were generally achieved in Greenhouse-1. IAA 5000 ppm treatment for J. communis ‘Hibernica’ (93.33%) and J. chinensis ‘Stricta’ (66.67%, also in Greenhouse-2) and IBA 3000 ppm treatment for J. chinensis ‘Stricta Var- iegata’ (60.00%) showed the best rooting results. This study, in which the best production conditions are investigated in some juniper taxa, is a guiding feature for the producers to ensure the sustainable utilization of junipers.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparison of the quality of seeding the Virginia fanpetals seeds by S071 Kruk seeder in laboratory and field conditions
Porównanie jakości siewu nasion ślazowca pensylwańskiego siewnikiem S071 Kruk w warunkach laboratoryjnych i polowych
Autorzy:: Kowalczuk, J.
Zarajczyk, J.
Leszczynski, N.
Wegrzyn, A.
Niedziolka, I.
Szymanek, M.
Markowski, P.
Tematy:: Virginia fanpetal
Sida hermaphrodita
seed
S071 Kruk seeder
seedling quality
seeding precision
field condition
laboratory condition
research result; Pokaż więcej
Data publikacji:: 2014
Powiązania:: https://bibliotekanauki.pl/articles/791847.pdf Link otwiera się w nowym oknie
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 3
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Wpływ podłoża na wzrost jednoletnich i dwuletnich sadzonek jodły pospolitej i buka zwyczajnego produkowanych w kontenerach styropianowych
Substrate influences the height of one- and two-year-old seedlings of silver fir and European beech growing in polystyrene containers
Autorzy:: Banach, J.
Skrzyszewska, K.
Świeboda, Ł.
Tematy:: lesnictwo
szkolkarstwo lesne
szkolki lesne
szkolki kontenerowe
produkcja sadzonek
drzewa lesne
jodla pospolita
Abies alba
buk zwyczajny
Fagus sylvatica
sadzonki
wzrost roslin
podloza uprawowe
dodatki do podlozy
grzyby mikoryzowe
Hebeloma crustuliniforme
substrate
peat
sawdust
seedling quality
container seedling; Pokaż więcej
Data publikacji:: 2013
Powiązania:: https://bibliotekanauki.pl/articles/1318718.pdf Link otwiera się w nowym oknie
Źródło:: Leśne Prace Badawcze; 2013, 74, 2; 117-125
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Opis:: The effectiveness of different peat-based substrates was compared for the propagation of two mountain tree species (silver fir and European beech). The experiment was set up in spring of 2006, and seedlings were grown in polystyrene multipots for 2 years. Four types of substrate were applied: (1) newly prepared 1:1 peat-sawdust mixture ; (2) a peat-sawdust mixture which had already been used for five production periods; (3) a peat substrate produced in the ‘Nêdza’ container nursery (Rudy Raciborskie Forest District), consisting of peat and perlite; (4) a peat substrate, as described for (3), with added mycorrhizal fungus Hebeloma crustuliniforme. After sowing, polystyrene multi-pots were placed in a transparent tent. During the autumns of 2006 and 2007, for both species and each substrate type, 25 seedlings were randomly selected for measurement of their above-ground height, root length, root collar diameter, above- and below-ground fresh weight. Growth of one-year old and two-year-old seedlings of both species differed depending on their substrate. The application of a mycorrhizal inoculum positively affected seedling establishment, since the best height growth and largest seedlings of both species were grown on substrate (4). The growth of one-year-old fir seedlings in the ‘old’ peat and sawdust mixture (2) was similar to those seedlings on the turf substrate (3). Root:shoot allocation differed among the substrates. In fir root:shoot allocation was approximately equivalent at 1:0.9, whereas for beech it was 1:2 in oneyear-old seedlings and 1:1.5 in two-year-old seedlings.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of root system of seedling of black cherry (Padus serotina L.) depending on seed quality
Ocena systemu korzeniowego siewek czeremchy późnej (Padus serotina L.) w zależności od jakości nasion
Autorzy:: Bieniek, A.
Kawecki, Z.
Tematy:: Padus serotina
black cherry
seedling
root system
seed quality; Pokaż więcej
Data publikacji:: 2005
Powiązania:: https://bibliotekanauki.pl/articles/11364509.pdf Link otwiera się w nowym oknie
Źródło:: Acta Scientiarum Polonorum. Hortorum Cultus; 2005, 04, 1; 31-38
1644-0692
Pojawia się w:: Acta Scientiarum Polonorum. Hortorum Cultus
Opis:: The assessment of black cherry seedlings root system was carried out at the Didactic-Experimental Establishment of the UWM in Olsztyn in September 2002. The seeds from which the examined seedlings were obtained had been sown into the ground on 2 October 2001. The following seeds were used for the experiment: fresh, sown into the ground immediately after obtaining them from fruit, partly dried seeds and seed sown a month later than in the preceding case as well as physiologically immature seeds and whole fresh fruit. The root systems of seedlings obtained from seeds stored for 1 year and 2 years in open and closed “Twist” type jars at room temperature and in a freezer were also assessed. The largest proportions of seedlings were obtained from seeds stored for 1 year and 2 years in a freezer. The lowest proportions of seedlings were obtained from seeds sown a month later and from whole fresh fruit. In this experiment the most favorable development of the root system was observed in case of seedlings from seeds stored for 2 years in an open jar. The time from picking to sowing of seeds was of little importance. The seedlings from partly dried seeds and later sowing were characterized by the lowest mass of the root system.
Ocenę systemu korzeniowego siewek czeremchy późnej przeprowadzono we wrześniu 2002 r. w Zakładzie Dydaktyczno-Doświadczalnym UWM w Olsztynie. Nasiona, z których otrzymano badane siewki, wysiano do gruntu 2 października 2001 r. Do doświadczenia użyto następujących nasion: świeżych, wysianych do gruntu bezpośrednio po wydobyciu z owoców, podsuszonych oraz nasion wysianych miesiąc później od poprzedniego wariantu, a także nasion niedojrzałych fizjologicznie i całych owoców świeżych. Oceniano również system korzeniowy siewek z nasion przechowywanych 1 rok i 2 lata w otwartych lub zamkniętych słoikach „twist” w temperaturze pokojowej i w zamrażalniku. Największą liczbę siewek otrzymano z nasion przechowywanych 1 rok i 2 lata w zamrażalniku. Najmniejszy odsetek wschodów zanotowano z nasion wysianych miesiąc później oraz z całych owoców świeżych. W niniejszych badaniach najkorzystniejszy rozwój systemu korzeniowego obserwowano u siewek z nasion przechowywanych 2 lata w otwartym słoiku. Termin od zbioru do wysiewu nasion miał małe znaczenie. Siewki z nasion podsuszonych i późniejszego siewu charakteryzowały się najmniejszą masą systemu korzeniowego.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Shelf life of kenaf (Hibiscus cannabinus L.) seed stored under humid tropical conditions
Autorzy:: Adebisi, M.A
Esuruoso, O.A.
Adetumbi, J.A
Abdul-Rafiu, A.M.
Kehinde, T.O.
Ajani, O.O.
Agboola, D.A.
Tematy:: probit modelling
storage life
seed quality
seed viability
seedling vigour; Pokaż więcej
Data publikacji:: 2012-12-20
Powiązania:: https://bibliotekanauki.pl/articles/2199723.pdf Link otwiera się w nowym oknie
Źródło:: Plant Breeding and Seed Science; 2012, 67; 75-86
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Opis:: Successful crop production depends initially on the availability of high-quality seed. Seed viability and vigour of four kenaf varieties during storage were investigated. Seeds of each variety were packed inside thick polythene bags and kept in Seed Stores under ambient conditions in two storage locations (Federal University of Agriculture, Abeokuta (FUNAAB) (29.8°C, 59.10 RH%) and Institute of Agricultural Research and Train- ing, Ibadan (27.5°C, 64.68 RH%) for 240 days (8 months). Seeds were sampled during storage at 0, 60, 120, 180 and 240 days and tested for seed viability and seedling vigour index. Data collected on seed viability and seedling vigour were analyzed using ANOVA, mean separation using Duncan Multiple Range Test at 5% probability level and PROBIT analysis. The results showed differential responses in the two quality traits due to differences in storage location and varieties. Ibadan storage location provided more favourable conditions for higher seed quality compared to Abeokuta location while Ifeken 400 and Tianung had the best storage potential. The study showed that under ambient humid tropical conditions, storage period should not exceed 180 days (6 months) in order to maintain higher physiological quality with little or no cost. The PROBIT result revealed that the highest seed shelf life (longevity) of kenaf seeds of 8 to 9 months was derived for seeds of Ifeken 400 and Tianung stored in Ibadan and Abeokuta. The shortest shelf life of 6 months was esti- mated for Ifeken 100 stored in both locations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Shelf life of kenaf (Hibiscus cannabinus L.) seed stored under humid tropical conditions
Autorzy:: Adebisi, M.A
Esuruoso, O.A.
Adetumbi, J.A
Abdul-Rafiu, A.M.
Kehinde, T.O.
Ajani, O.O.
Agboola, D.A.
Tematy:: probit modelling
storage life
seed quality
seed viability
seedling vigour; Pokaż więcej
Data publikacji:: 2012
Powiązania:: https://bibliotekanauki.pl/articles/55928295.pdf Link otwiera się w nowym oknie
Źródło:: Plant Breeding and Seed Science; 2012, 67; 75-86
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Opis:: Successful crop production depends initially on the availability of high-quality seed. Seed viability and vigour of four kenaf varieties during storage were investigated. Seeds of each variety were packed inside thick polythene bags and kept in Seed Stores under ambient conditions in two storage locations (Federal University of Agriculture, Abeokuta (FUNAAB) (29.8°C, 59.10 RH%) and Institute of Agricultural Research and Train- ing, Ibadan (27.5°C, 64.68 RH%) for 240 days (8 months). Seeds were sampled during storage at 0, 60, 120, 180 and 240 days and tested for seed viability and seedling vigour index. Data collected on seed viability and seedling vigour were analyzed using ANOVA, mean separation using Duncan Multiple Range Test at 5% probability level and PROBIT analysis. The results showed differential responses in the two quality traits due to differences in storage location and varieties. Ibadan storage location provided more favourable conditions for higher seed quality compared to Abeokuta location while Ifeken 400 and Tianung had the best storage potential. The study showed that under ambient humid tropical conditions, storage period should not exceed 180 days (6 months) in order to maintain higher physiological quality with little or no cost. The PROBIT result revealed that the highest seed shelf life (longevity) of kenaf seeds of 8 to 9 months was derived for seeds of Ifeken 400 and Tianung stored in Ibadan and Abeokuta. The shortest shelf life of 6 months was esti- mated for Ifeken 100 stored in both locations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Effect of soil bulk density on forest tree seedlings
Autorzy:: Kormanek, M.
Banach, J.
Sowa, P.
Tematy:: soil
bulk density
seedling
quality
Scotch pine
European beech
forest tree; Pokaż więcej
Data publikacji:: 2015
Powiązania:: https://bibliotekanauki.pl/articles/24491.pdf Link otwiera się w nowym oknie
Źródło:: International Agrophysics; 2015, 29, 1
0236-8722
Pojawia się w:: International Agrophysics
Opis:: The paper presents the results of an analysis of the influence of soil bulk density in a forest nursery plot on the growth and quality parameters of Scots pine and European beech seedlings. Particular density variants were obtained using a tractor device exerting controlled pressure on the soil, while field examinations were performed on an area of ‘Kłaj’ forest nursery in Niepołomice Forest District. Three series of plots were prepared for each species, applying a unit pressure of the values of 50, 100, 150, 200, 250 kPa, corresponding to the dry bulk density in the range of 1.03-1.19 g cm-3, and control plots without the pressure. Seeds of the examined species were sown on the prepared plots, and after 6 months of growth the seedlings were subjected to biometric analysis determining differentiation in root neck diameter, length of the above-ground part and root system, as well as dry mass of particular parts of the plant. The quality of the seedlings was also determined using the method of Schmidt-Vogt. The results obtained show that the change in dry bulk densitysoil significantly affected most of the growth parameters of theexamined seedlings. Especially high negative correlations were obtained for the length and dry mass of the root system. A significant influence of dry bulk density variant on all growth parameters of Scots pine seedlings, and on some parameters of European beech was demonstrated. An increase in soil bulk density clearly caused also a deterioration of European beech seedlings quality.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: A vigour test for quality assessment of stored beech (Fagus sylvatica L.) nuts
Autorzy:: Tylkowski, T
Tematy:: seed quality
beechmast
vigor test
quality assessment
Fagus sylvatica
beech
nut
pathogenic fungi
seedling emergence
stored beech; Pokaż więcej
Data publikacji:: 2002
Powiązania:: https://bibliotekanauki.pl/articles/41627.pdf Link otwiera się w nowym oknie
Źródło:: Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:: Dendrobiology
Opis:: Many seed lots of beech (Fagus sylvatica L.) nuts are characterized by various levels of infection with pathogenic fungi, such as Fusarium, Rhizoctonia and Cylindrocarpon spp. Favourable conditions for fungal infection of beechnuts are created especially during their long-term provisional storage without earlier drying to the moisture content of 8-10%. Strongly infected seed lots are not suitable for long-term storage. During the pre-sowing treatment of seeds by stratification without medium, fungi develop under the moist conditions and infect many healthy seeds. To assess the quality of beechnuts, a vigour test has been developed. Seeds removed from the pericarp (4 replications of 50 nuts each) are placed in boxes between two layers of moist tissue paper and incubated at 25°C for 120 hours. After this period decayed seeds (mouldy seeds) are excluded, and the remained are subjected to embryo viability by the tetrazolium test. When the percentage of decaying seeds (including those with necroses) does not exceed 10-15%, such seed lot can be used for long-term storage. If the percentage exceeds 50%, the seed lot should be considered unsuitable both for storage and for pre-sowing treatment, because only a very small proportion of seeds will emerge in the nursery.
Dostawca treści:: Biblioteka Nauki

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