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    Wyświetlanie 1-8 z 8
    Tytuł:
    The impact of light and gravity on growth directions in a root system of Cucumis sativus L.
    Autorzy:
    Otreba, P
    Powiązania:
    https://bibliotekanauki.pl/articles/57921.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    plant architecture
    growth response
    growth
    root system
    phototropism
    growing
    lateral root
    gravity
    gravitropism
    seedling
    light
    environmental factor
    Cucumis sativus
    light condition
    behaviour
    Opis:
    While each individual root responds to such environmental factors as light or gravity the question arises how these reactions subordinate to the whole root system, which is supposed to maintain its primary functions. Data presented here confirm that in cucumber the gravity and light modulate the growth direction of the lateral roots subunits of the system. Another important factor affecting behavior of lateral roots is an orientation of the main root. These facts all together suggest that the root system functions as an integrated entity, capable of adapting its architecture to changing environmental conditions. Its flexibility, based on unknown signaling network, guarantees optimal functioning of the system.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2009, 78, 1; 7-12
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth of Heterobasidion annosum (Fr.) Bref. through bark of one-year-old Pinus sylvestris seedlings grown in vitro
    Autorzy:
    Werner, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/41412.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Heterobasidion annosum
    root rot fungi
    pathogen
    root infection
    Pinus sylvestris
    bark
    seedling
    growth
    in vitro
    host reaction
    Opis:
    Pinus sylvestris L. seedlings grown for 12-17 months in pure culture after inoculation with S and P strains of Heterobasidion annosum (Fr.) Bref. were studied with the help of light and transmission electron microscopy. Standardized inoculation procedure and uniform in vitro conditions allowed evaluation of the host/pathogen interactions. Necrotic reaction of the bark cells associated with the accumulation of dark-stained material in vacuoles, and lignification of their walls in root regions in proximity to mycelium were the common host reaction. Hypertrophy of the bark cells in areas invaded by hyphae caused a tension that was responsible for strong deformation of the bark cells. Injury to the vascular cambium resulted in formation of barrier zone parenchyma and abnormal xylem elements. High amount of polyphenolic material accumulated in new formed parenchyma cells was an effective chemical “barrier” to the centripetal spread of hyphae. Resin-plugged tracheids and row parenchyma cells rich in polyphenolic material were common in wood areas colonized by the fungus.
    Źródło:
    Dendrobiology; 2001, 46
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exogenous polyamines improve mycorrhizal development and growth and flowering of Freesia hybrida
    Autorzy:
    Rezvanypour, S.
    Hatamzadeh, A.
    Elahinia, S.A.
    Asghari, H.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    exogenous polyamine
    mycorrhization
    mycorrhizal inoculation
    nutrient uptake
    root
    growth
    flowering
    Freesia hybrida
    Źródło:
    Journal of Horticultural Research; 2015, 23, 2
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fluxes of nitrogen within deciduous fruit trees
    Przepływy azotu wewnątrz drzew owocowych klimatu umiarkowanego
    Autorzy:
    Tagliavini, M.
    Millard, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/11364496.pdf
    Data publikacji:
    2005
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    nitrogen remobilization
    nitrogen nutrition
    nitrogen flux
    shoot-root-shoot nitrogen recycling
    fruit tree
    nitrogen storage
    fruiting
    growth
    Opis:
    Nitrogen (N) nutrition is a major means of controlling growth and fruiting of trees. In EU Countries, society’s expectations and political decisions have pushed for the adoption of sustainable ways to manage orchards. Guidelines for N management aim to limit fertiliser applications under threshold limits, in order to reduce N losses. Increasing the effectiveness of the recycling of the N present in the orchard is a basic step to reduce external N inputs. The availability of the stable isotope ¹⁵N as experimental tool has made possible significant advances in the knowledge of the fluxes of N at tree and orchard level. This paper discusses the N fluxes occurring within the tree both between the years and within the year (root-shoot-root N recycle) and their role in the vegetative and reproductive cycle of fruit trees.
    Odżywianie azotem (N) stanowi główny czynnik kontrolujący wzrost i owocowanie drzew. W krajach UE oczekiwania społeczeństwa i decyzje polityczne wymuszają przyjęcie odnawialnych sposobów prowadzenia sadów. Wskazania odnośnie gospodarki azotem są nakierowane na zastosowanie nawozów w progowych dawkach, w celu zredukowania strat N. Wzrost efektywności obiegu N obecnego w sadzie stanowi podstawowy krok w kierunku ograniczenia zewnętrznego wkładu. Zastosowania izotopu ¹⁵N jako narzędzia doświadczalnego umożliwiło znaczny postęp w poznaniu przepływów azotu w obrębie drzew i w ogóle w sadzie. W pracy dyskutowane są przepływy N wewnątrz drzewa – pomiędzy latami i w obrębie roku (obieg korzenie–pędy–korzenie) oraz ich znaczenie dla cykli wzrostowych i reprodukcyjnych drzew owocowych.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2005, 04, 1; 21-30
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Control of root-knot nematode (Meloidogyne incognita) in tomato (Solanum lycopersicum) crop using Siam weed (Chromolaena odorata) compost manure
    Autorzy:
    Abolusoro, S.A.
    Odekiya, A.O.
    Aremu, C.
    Ige, S.
    Izuogu, N.B.
    Abolusoro, P.F.
    Erere, A.
    Obaniyi, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1080263.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    root-knot nematode
    Meloidogyne incognita
    tomato
    seedling
    Roma cultivar
    Solanum lycopersicum
    compost
    manure
    Chromolaena odorata
    carbofuran
    growth
    yield
    Opis:
    A field experiment was conducted at Landmark University Omu-Aran, Nigeria from June to November 2017 and repeated at the same time in the year 2018 on a nematode infested soil to evaluate the effects of different amounts of Siam weed compost on the performance of root-knot nematode (RKN) infested tomato. The compost was applied a week before planting as soil amendment at the amount of 0.0, 0.5, 1.5, and 2.0 t·ha-1, while carbofuran was applied at the rate of 3.0 kg·ha-1. Four weeks old tomato seedlings cultivar ‘Roma VF’, which is susceptible to RKN, was transplanted to already prepared soil. Results of the experiment showed that the compost, especially in the amount 2 t·ha-1 and carbofuran at 3 kg·ha-1, brought about significant reduction of the population of RKN in soil and roots, and a significant increase in the growth and yield of tomato. The result of the experiment showed that Siam compost can be used for the managing root-knot nematodes in tomato cultivation, as an environmentally safe factor.
    Źródło:
    Journal of Horticultural Research; 2020, 28, 1; 87-92
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study on controlling Setaria viridis and Corchorus olitorius associated with Phaseolus vulgaris growth using natural extracts of Chenopodium album
    Autorzy:
    El-Rokiek, K.G.
    El-Din, S.A.S.
    Shehata, A.N.
    El-Sawi, S.A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/66191.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    controlling
    Setaria viridis
    Corchorus olitorius
    Phaseolus vulgaris
    growth
    leaf extract
    Chenopodium album
    bean
    flavonoids
    polyphenol
    root extract
    plant extract
    Opis:
    The effects of water extracts of Chenopodium album leaves and roots on the growth of grass weed (Setaria viridis) and broad leaf weed (Corchorus olitorius) grown with beans (Phaseolus vulgaris) in greenhouse pots were studied in the National Research Centre, Giza, Egypt. In this experiment fresh leaf and root extracts and their corresponding dry leaf and root extracts at different concentrations were used. There were significant inhibitions in the dry weights of S. viridis and C. olitorius by all extracts at the flowering stage of beans and at harvest. The inhibition effect of all C. album extracts on both weeds (dry weight/pot) depended on the extracted plant organ (leaf or root), its fresh or dry form as well as its concentrations. The inhibition caused by the leaf extract was much higher on weed growth than that of root extract. A higher concentration of fresh leaf extract (25%) had the highest significant inhibition effect. The results also indicated that C. olitorius was more sensitive to the extracts than S. viridis. On the other hand, the inhibition effect of the extracts on the growth of both weeds was accompanied by increased bean growth and yield/plant. The analysis of both leaf and root extracts of C. album revealed that the total content of polyphenols and flavonoids in the leaf extract was more than triple that of the root extract. The results suggested that the fresh leaf extract of C. album may be a possible tool for the development of weed control using natural herbicides.
    Źródło:
    Journal of Plant Protection Research; 2016, 56, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ zagęszczenia podłoża w kontenerach szkółkarskich na parametry wzrostowe sadzonek sosny zwyczajnej (Pinus sylvestris L.)
    Influence of substrate compaction in nursery containers on the growth of Scots pine (Pinus sylvestris L.) seedlings
    Autorzy:
    Kormanek, M.
    Banach, J.
    Ryba, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1318078.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    szkolkarstwo lesne
    szkolki lesne
    szkolki kontenerowe
    pojemniki uprawowe
    podloza uprawowe
    zageszczenie podloza
    sadzonki
    sosna zwyczajna
    Pinus sylvestris
    wzrost roslin
    bulk density
    container nursery
    growth
    root system
    Opis:
    The paper presents research on influence of nursery soil compaction, composed of peat (90%) and perlite (10%), on the growth of seedlings of Pinus sylvestris grown in containers. Polyethylene nursery are containers used for the seedling production. These containers were filled with three different densities of the peat and perlite substrate (0.3, 0.5 and 0.7 g·cm-3). During the experiment, nursery containers were initially placed in a plastic tent for a period of two months, and then for three months further months in an open nursery field. Growth measurements for individual plants were the length of shoots and the root system, root collar diameter, root and shoot dry weight and photosynthetic rate. There was a relationship between the extent of compaction of the soil substrate and all analyzed growth parameters of seedlings. A more compact substrate adversely affected on the number of grown seedlings and their length but positively influenced the dry mass of pine seedlings.
    Źródło:
    Leśne Prace Badawcze; 2013, 74, 4; 307-314
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przyrost i wzrost nadziemnej i podziemnej części podrostów jodłowych w Nadleśnictwie Piotrków Trybunalski
    The increment and growth of above- and belowground part of the fir undergrowth in the Piotrkow Trybunalski Forest District
    Autorzy:
    Skrzyszewski, J.
    Taranowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008941.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Piotrkow Trybunalski
    hodowla lasu
    drzewa lesne
    jodla pospolita
    Abies alba
    podrost
    czesci nadziemne
    korony drzew
    strzala drzew
    czesci podziemne
    system korzeniowy
    przyrost drzew
    przyrost wysokosci
    wzrost korzeni
    abies alba
    root system
    height
    length
    growth
    increment
    poland
    Opis:
    The objective of the research was to determine the relationship between the dimensions and increment of the aboveground (easy to determine) and the belowground biomass of fir undergrowth in different shelter conditions. In the examined samples, the length of taproots (DKp) up to the age of 30 was dependent on its increment during the first three years of development. Later years saw an intensified growth of taproots. However, the differences from the first years of growth did not compensate for the differences in the first years. Reduced DKp growth was observed in the group of seedlings incrementing to a height of less than 4 cm. The height increment of fir undergrowth at about 20 years of age should not be less than 20 cm. The growth of roots and aboveground parts depends on other factors. The growth of roots was related to the growth of aboveground parts only to a small degree. Under the conditions of suppression, the extremely poor height increment of firs was compensated by the development of the aboveground biomass. With a moderate height increment (sufficient light availability) root growth was more intense. No clear relationship was found between the development of taproots and horizontal roots.
    Źródło:
    Sylwan; 2010, 154, 07; 488-498
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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