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    Wyświetlanie 1-9 z 9
    Tytuł:
    Growth and yield response of two hybrid rice cultivars to ATONIK plant growth regulator in a Tropical environment
    Autorzy:
    Banful, B.K.
    Attivor, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/10005.pdf
    Data publikacji:
    2017
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    plant growth
    yield response
    hybrid
    plant cultivar
    rice
    Oryza sativa
    Atonik preparation
    plant growth regulator
    tropical environment
    Opis:
    A study was conducted at the Department of Horticulture, KNUST, Kumasi from June to November, 2015 with the objectives to (i) determine the rate of ATONIK plant growth regulator (PGR) suitable for high yield of two varieties of hybrid rice (ii) determine the combined effects of PGR rates and varieties on the growth and yield performance of hybrid rice. A 2 x 5 factorial arrangement in randomized complete block design with three replications was used. The factors were varieties at two levels: Agra Rice and Jasmine 85 and PGR at five levels: ATONIK at 450 ml/ha, ATONIK at 500 ml/ha, ATONIK at 550 ml/ha, ATONIK at 0 ml/ha and GA3 at 60 ml/ha. Comparing the ATONIK rates with the GA3, ATONIK at 450 ml/ha resulted in a 14.3 % increase in the number of rice panicles. Application of ATONIK at 450 ml/ha, 500 ml/ha and 550 ml/ha resulted in 14.4%, 10.7% and 4.4% higher percentage of productive tillers, respectively, than that produced by GA3 at 60 ml/ha. ATONIK at 450 ml/ha application led to a 17.8 % increase in grain yield. For the harvest index, application of ATONIK at 450 ml/ha resulted in the highest harvest index of 45 %, significantly greater than the other PGR treatments. In conclusion, the study clearly demonstrated that ATONIK PGR was superior to GA3 in the vegetative and productive performance of rice. The most suitable rate of ATONIK for increased rice productivity was 450 ml/ha.
    Źródło:
    Environment, Earth and Ecology; 2017, 1, 1
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stymulujący wpływ Asahi SL na wybrane gatunki roślin
    Autorzy:
    Przybysz, A.
    Wrochna, M.
    Słowiński, A.
    Gawrońska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/11541834.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    stimulatory effect
    plant species
    Asahi SL preparation
    biostimulant
    biomass accumulation
    plant growth
    plant development
    photosynthetic apparatus
    optimal condition
    ornamental plant
    plant growth regulator
    Opis:
    Asahi SL stimulates plant’s vital processes like growth and development, affects physiology and biochemistry, what often leads to increased biomass accumulation and yield. However, common is opinion that application of this preparation could be beneficial only, when treated plants are grown under unfavorable conditions. Therefore the aim of this work was the assessment of the stimulatory effect of Asahi SL on Arabidopsis thaliana L. and ornamental amaranth plants grown under optimal conditions. Plants treated with Asahi SL were higher and more advanced in development, particularly generative. Biomass accumulation was greater after biostimulator application mainly due to better photosynthetic apparatus efficiency, which was manifested by (i) greater leaf area, (ii) higher total chlorophyll content and (iii) increased intensity of photosynthesis. Effect of Asahi SL on chlorophyll a fluorescence was marginal. Despite of higher transpiration and lowered stomatal resistance the RWC was almost unchanged in biostimulator treated plants what was attributed to increased water uptake. Obtained results clearly showed that Asahi SL applied on plants can also be effective and beneficial when they are grown under optimal conditions.
    Asahi SL stymuluje procesy życiowe roślin, jak również wzrost i rozwój oraz wpływa ma procesy fizjologiczne i biochemiczne, co często prowadzi do zwiększenia wytwarzanej biomasy i plonowania. Powszechną jest jednak opinia, że pozytywny wpływ preparatu ma miejsce, tylko wtedy, gdy rośliny rosną w niekorzystnych warunkach. Celem pracy były ocena stymulującego wpływu Asahi SL na rośliny rzodkiewnika pospolitego oraz szarłatu ozdobnego rosnące w warunkach optymalnych. Rośliny traktowane Asahi SL były, wyższe oraz bardziej zaawansowane w rozwoju, szczególnie generatywnym. Preparat podwyższał akumulację biomasy głównie poprzez poprawę sprawności aparatu fotosyntetycznego, która przejawiała się zwiększeniem (i) powierzchni liści, (ii) zawartości chlorofilu oraz (iii) intensywności fotosyntezy. Preparat miał niewielki wpływ na mierzone parametry fluorescencji chlorofilu a. Mimo wyższej transpiracji i obniżonych oporów dyfuzyjnych, u roślin traktowanych preparatem, ich RWC się nie zmieniło, co tłumaczyć można zwiększonym pobieraniem wody z podłoża. Uzyskane w tych badaniach wyniki dowodzą, że Asahi SL działa pozytywnie także na rośliny rosnące w warunkach optymalnych.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2010, 09, 2; 53-64
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of exogenous salicylic acid on the response of snap bean (Phaseolus vulgaris L.) and Jerusalem artichoke (Helianthus tuberosus L.) to drought stress
    Autorzy:
    El-Tohamy, W.A,-K.
    El-Abagy, H.M.
    Badr, M.A.A.
    Gruda, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/11862762.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    plant research
    plant growth
    plant growth regulator
    snap bean
    Phaseolus vulgaris
    Jerusalem artichoke
    Helianthus tuberosus
    exogenous compound
    salicylic acid
    water content
    chlorophyll content
    water shortage
    drought stress
    drought sensitivity
    plant response
    arid region
    semi-arid region
    Opis:
    Water shortage is a major problem that limits growth and productivity of plants in arid and semi-arid regions. Protecting plants from adverse environmental conditions by using simple methods could be of great value under these conditions. In the present study, we examined water status and drought tolerance of snap bean, a drought-sensitive plant, and Jerusalem artichoke, a relatively drought tolerant plant in response to the application of salicylic acid (SA). Different levels of SA were applied and several physiological, growth, productivity and quality parameters were recorded together with the relative water content. Foliar application of SA improved growth, productivity, quality as well as some physiological parameters of snap bean and Jerusalem artichoke plants exposed to drought stress. Total chlorophyll content and relative water content were higher in plants treated with SA compared to control plants when subjected to drought stress. The specific responses of snap bean and Jerusalem artichoke to SA under drought stress as well as the possible explanations of the effects of SA are discussed.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 81-91
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of growth retardants on growth and flower bud formation in rhododendron and azalea
    Autorzy:
    Marosz, A
    Matysiak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/41091.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    azalea
    rhododendron
    flower bud formation
    plant growth
    growth retardant
    growth inhibition
    growth regulator
    plant cultivar
    Opis:
    Plants of ‘Catawbiense Boursault’ and ‘Eskimo’ rhododendrons or ‘Cannon’s Double’ and ‘Kilian’ azalea grown in 4 l containers were treated twice with chlormequat (2000, 4000 and 8000 mg · dm-3), trinexapac-ethyl (50, 100, 200, 400 mg · dm-3), daminozide (2500, 5000, 7500 mg · dm-3), proxeadione calcium (75, 150, 300 mg · dm-1) and once with paclobutrazol (50, 100, 200, 400 mg · dm-3). Shoot length of the subsequent growth flush following the treatments decreased with increasing rates of the growth retardants. The number of flower buds per plant increased with increasing rates of pacloburazol, chlormequat and daminozide. Prohexadione calcium was less effective in flower bud initiation and the worst results were obtained with trinexapac-ethyl.
    Źródło:
    Dendrobiology; 2005, 54; 35-40
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed priming and foliar application of plant growth regulators affect the growth and yield of okra under calcareous soils
    Autorzy:
    Tahir, M.T.
    Anjum, M.A.
    Saqib, M.
    Khalid, M.F.
    Hussain, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/12664203.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Pakistan
    plant cultivation
    okra
    Abelmoschus esculentus
    seed priming
    plant growth
    growth regulator
    growth regulator effect
    foliar application
    naphthaleneacetic acid
    gibberellin A3
    Opis:
    A field study was conducted to evaluate the effect of different plant growth regulators (PGRs) applied through seed priming and foliar spray on growth and yield of three okra cultivars grown under calcareous soils. The cultivars of Punjab Selection and Sabzpari produced significantly higher number of branches and leaves per plant, pod length and diameter and pod yield as compared to cv. Green ferry, while, cv. Punjab selection produced significantly greater number of flowers and pods per plant as compared to other two cultivars. Seed germination (%), plant height, and fruit set (%) were not affected by the cultivars. Among the PGR treatments, seed primed with GA3 resulted in significantly higher germination percentage and greater plant height at flowering. Seed priming and foliar spray with NAA and GA3 were effective in increasing the final plant height, number of branches, number of leaves, number of flowers and number of pods per plant and fruit set (%), fresh weight per pod and pod yield. However, pod diameter, pod moisture content and dry weight per pod were not influenced by the PGR treatments applied. These results suggested that the PGRs have great potential to improve seed germination, enhance growth and increase yield of okra cultivars under calcareous soils.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 25-33
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of plant growth regulators and explant types on induction and growth of callus of Primula veris L.
    Wpływ regulatorów wzrostu i rodzaju eksplantatów na indukcję kalusa i wzrost pierwiosnka lekarskiego (Primula veris L.)
    Autorzy:
    Morozowska, M.
    Wesolowska, M.
    Glowicka-Woloszyn, R.
    Kosinska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/72672.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    plant growth
    growth regulator
    explant type
    callus induction
    growth
    callus
    Primula veris
    proliferation
    Opis:
    Primula veris L. (Primulaceae) is a well-known medicinal herb. The callus induction response of three explant types: roots, cotyledons, and hypocotyls of four-week-old cowslip seedlings were evaluated. The highest statistically different callus induction rate was 93.6% and was obtained from root explants on MS medium supplemented with 0.1 mg/l BA and 5.0 mg/l PIC. Calli also appeared on 83.3% of cotyledon explants on MS medium supplemented with 1.0 mg/l BA and 3.5 mg/l 2,4-D and on 81.0% of root explants on MS medium supplemented with 0.1 mg/l KIN and 2.0 mg/l 2,4-D. These values were not statistically different. The average time required for callus initiation was 4 to 6 weeks, however, it depended on the explants type. The most suitable condition for callus proliferation and growth was MS medium with 0.5 mg/l TDZ and 0.1 mg/l NAA, and with 1.0 mg/l BA and 2.0 mg/l or 3.5 mg/l 2,4-D. No light conditions proved to be more favourable for cowslip calli induction and growth.
    Primula veris L. (Primulaceae) to znana roślina lecznicza. Opracowano metodę otrzymywania in vitro tkanki kalusowej z trzech rodzajów eksplantatów: korzeni, liścieni i hypokotyli z czterotygodniowych siewek pierwiosnka lekarskiego. Najwyższy, istotny statystycznie i wynoszący 93,6% indukcji tkanki kalusowej uzyskano z eksplantatów korzeniowych na podłożu Murashige i Skooga (MS) zawierającego 0,1 mg/l BA i 5,0 mg/l PIC. Indukcję kalusa obserwowano także na 83,3% eksplantatów liścieniowych na pożywce MS uzupełnionej 1,0 mg/l BA i 3,5 mg/l 2,4-D oraz na 81,0% eksplantatów korzeniowych na pożywce MS zawierającej 0,1 mg/l KIN i 2,0 mg/l 2,4-D. Średni czas potrzebny do inicjacji kalusa wyniósł 4 do 6 tygodni i zależał od rodzaju eksplantatu. Podłoża MS uzupełnione 0,5 mg/l TDZ i 0,1 mg/l NAA oraz 1,0 mg/l BA i 2,0 mg/l lub 3,5 mg/l 2,4-D okazały się najodpowiedniejszymi dla dalszego rozwoju i wzrostu zregenerowanej tkanki kalusowej. Warunki bez dostępu światła były korzystniejsze dla indukcji i wzrostu tkanki kalusowej pierwiosnka lekarskiego.
    Źródło:
    Herba Polonica; 2013, 59, 3
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of a Growth Stimulant Based on lodine Nanoparticles on Festuca glauca
    Autorzy:
    Jarecka, Katarzyna
    Sosnowski, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/2028111.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    Festuca glauca
    plant growth
    development regulator
    Stymjod
    ornamental grass
    Opis:
    The purpose of the studies was to determine the effects of Stymjod, a growth regulator, on blue fescue (Festuca glauca) development and morphological characteristics. The experiment was an attempt to determine the effect of different concentrations of Stymjod on the leaf greenness index, the number and length of leaf blades, the length of roots, and the dry weight of roots and leaves. The plant used in the experiment, Festuca glauca, was grown in pots. The following three treatment combinations were used: spraying plants with distilled water only; with Stymjod at a concentration of 2% in the spraying fluid; with Stymjod at a concentration of 4%. Spraying was carried out four times at weekly intervals. It was found that the 2% concentration of Stymjod in the solution significantly improved most morphological. Festuca glauca treated with Stymjod was characterized by better efficiency of the photosynthetic apparatus and photosynthetic activity.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 11; 72-78
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of Bio-algeen S90 on the growth of multiflora rose seedlings (Rosa multiflora Thunb.)
    Autorzy:
    Szmagara, M.
    Pudelska, K.
    Durlak, W.
    Marcinek, B.
    Rojek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/12684067.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    multiflora rose
    Rosa multiflora
    ornamental plant
    plant growth
    growth regulator
    fluorescence
    chlorophyll
    biopreparation
    Bio-algeen S-90 preparation
    Opis:
    Striving to intensify horticultural production, new and more effective bio-preparations are being sought to stimulate plant growth and development. Bio-algeen S90 is a natural agent based on sea algae, the high biological activity of which results from the high content of natural growth regulators. The aim of the study was to verify the influence of Bio-algeen S90 on the growth, morphological characteristics and chlorophyll fluorescence of Rosa multiflora seedlings. The bio-preparation was applied one, two and three times at concentrations: 0.1, 0.2, 0.4 and 0.6 mg.dm−3. Following parameters were measured to evaluate the response of plants to the bio-preparation: F0 – initial fluorescence, Fm – maximal fluorescence in the dark-adapted state, Fv/Fm – maximum photochemical efficiency of PSII. All concentrations of the bio-preparation and frequency of its application stimulated the number of shoots in a bush, the length of shoots and the diameter of the root crown of plants intended for budding. The most beneficial was the two-fold bio-preparation application at a concentration of 0.4 mg.dm–3. Bio-algeen also positively influenced the chlorophyll fluorescence parameters. The highest mean F0 and Fm values were recorded with the two-fold preparation treatment. There was no significant effect of the bio-preparation on the Fv/Fm index, which was within the range of 0.75–0.66.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 3; 35-43
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Growth Regulators on the Development of Selected Conifer Trees
    Autorzy:
    Wiśniewska-Kadżajan, B.
    Jankowski, K.
    Misiak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/124701.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    bio-regulator
    active substance
    Picea pungens
    Thuja occidentalis
    plant growth
    Opis:
    Nowadays, substances stimulating the growth and development of different agricultural plant species are used in intensive farming. Some of such plant growth regulators are Asahi SL and Moddus 250-EC. So far the literature dealing with growth regulators has focused mainly on their effects on deciduous trees. Because no data are available on how those substances affect conifer trees, this paper presents description of experiments on the effects of Asahi SL and Moddus 250-EC on the increase of tree height and branch length of Picea pungens and Thuja occidentalis. The research has proved that morphological features of the plants tested in the experiment varied according to which growth regulator was used and in what month the measurements were taken. Conifer trees sprayed with Asahi SL had a bigger yearly height growth rate and bigger growth of branches than those sprayed with the stimulator Moddus 250-EC.
    Źródło:
    Journal of Ecological Engineering; 2017, 18, 2; 129-135
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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