Temat: growth promoter - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Plant growth of Verbena bonariensis L. after chitosan, gellan gum or iota-carrageenan foliar applications
Autorzy:: Salachna, Piotr
Byczyńska, Andżelika
Jeziorska, Irena
Udycz, Ewelina
Powiązania:: https://bibliotekanauki.pl/articles/1182846.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: biostimulants
plant growth promoter
polysaccharides
purpletop vervain
Opis:: Nowadays, the use of natural polysaccharides in the field of agriculture has increased in order to achieve sufficient yields and quality. Minimal research on effect of biopolymers on growth ornamental plants has been published. Verbena bonariensis L. is a valuable perennial species, recommended for cultivation in gardens and green areas, as well as cut and pot plant. The main objective of the investigation was to analyzed the effects of three polysaccharides on the growth and flowering of V. bonariensis. The plants were sprayed with aqueous solution of chitosan, gellan gum or kappa-carrageenan at a concentration of 0.2%, five times. Control plants were treated with water. The results indicated that polysaccharides significantly enhanced the plant height, number of inflorescences and number of leaves of V. bonariensis plants. Application of chitosan and gellan gum significantly increased the stomatal conductance by 13.8 and 16.3 % and enhanced the number of shoots per plant by 29.4 and 37.5 % compared with that control, respectively. Among the three polysaccharides, gellan gum proved best and gave significantly maximum fresh weight of aboveground part and fresh weight of root by 34.3 and 114 % over the control one.
Źródło:: World Scientific News; 2017, 62; 111-123
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Siderophore Production of the Hg-Resistant Endophytic Bacteria Isolated from Local Grass in the Hg-Contaminated Soil
Autorzy:: Ustiatik, Reni
Nuraini, Yulia
Suharjono, -
Handayanto, Eko
Powiązania:: https://bibliotekanauki.pl/articles/1838397.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: endophytic bacteria
growth promoter
metal chelator
siderophore production
Hg phytoremediation
Opis:: Mercury (Hg)-contaminated soil remediation has become an urgent necessity due to its harmful effect on the environment and living organisms. The use of plant-endophyte partnership for phytoremediation demonstrates an excellent opportunity for cleaning heavy metal contaminated soil. This study aimed to screen and characterize the phenotype of the Hg-resistant endophytic bacteria from local grasses (Cynodon dactylon and Eleusine indica) in the Hg-contaminated soil of West Nusa Tenggara, Indonesia with siderophore-producing traits. Siderophore production of bacteria was qualitatively tested using overlay-chrome azurol S (O-CAS) medium and quantitatively tested using the succinic acid medium. The assay was designed using a Completely Randomized Factorial Design consisting of two factors, i.e., isolate type and incubation time with three replicates. The selected isolates were pathogenicity tested, then they were phenotypically characterized. All tested isolates showed a positive result on changing O-CAS medium color from blue to yellow/brown that indicated hydroxamate type of siderophore. The highest siderophore production was achieved at 72 hours of incubation, by the EI5 and EI6 isolates (62.90% and 35.31%, respectively). In turn, the CD6, EI5 and EI6 isolates achieved high siderophore production at a short incubation period (48 hours). However, during the hemolysis test, only the CD6 and EI6 isolates were not pathogenic. The CD6 and EI6 isolates would be used for phytoremediation on Hg-contaminated soil in the future study. On the basis of the 16S rDNA analysis, it was shown that the CD6 isolate was Jeotgalicoccus huakuii and the EI6 isolate was Bacillus amyloliquefaciens.
Źródło:: Journal of Ecological Engineering; 2021, 22, 5; 129-138
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Zastosowanie efektywnych mikroorganizmów (EM) w uprawie truskawki
Used of effective microorganisms in strawberry cultivation
Autorzy:: Kowalska, Jolanta
Remlein-Starosta, Dorota
Powiązania:: https://bibliotekanauki.pl/articles/2076490.pdf
Data publikacji:: 2013-07-23
Wydawca:: Centrum Doradztwa Rolniczego w Brwinowie. Oddział w Poznaniu
Tematy:: EM
stymulator wzrostu roślin
truskawka
Effective Microorganism
plant growth promoter
strawberry
Opis:: Preparaty mikrobiologiczne niebędące środkiem ochrony roślin wykorzystują najczęściej zjawisko antagonizmu pomiędzy patogenem a stosowanym organizmem pożytecznym. Produkty te często są zaliczane do grupy stymulatorów wzrostu. Badania dotyczące stosowania EM i różnych metod ich stosowania zostały wykonane w latach 2011-2012 na plantacji truskawek odm. Honeoye. Efektywność zabiegów oceniano na podstawie uzyskanej świeżej masy części nadziemnych roślin, liczby rozłogów z wybranych 10 roślin z każdego poletka oraz plonowania. Oceniano także zawartość chlorofilu, gdyż ilościowa i jakościowa analiza chlorofili w roślinach traktowanych EM może być wskaźnikiem dostępności dla nich składników pokarmowych. Po zastosowaniu EM w 5% koncentracji zdecydowanie wzrosła masa części nadziemnych roślin truskawki, które 6-krotnie traktowano nalistnie. Zwiększenie koncentracji do 10% nie spowodowało polepszenia parametrów wzrostu roślin, ani zwiększenia liczby rozłogów. Stosowanie zabiegów z większą częstotliwością nie wpłynęło na polepszenie rozwoju roślin. Podobne tendencje obserwowano dla plonowania. Nie obserwowano wpływu EM zabiegów na zawartość chlorofilu.
Preparations based on micro-organisms may complement the currently known means of agricultural production. Microbial preparations usually use the phenomenon of antagonism between the pathogen and the beneficial organism. These preparations are often called as growth promoters. Investigations on the use of EM and different methods of their applications were conducted in 2011-2012 on strawberries cv. Honeoye. The effectiveness of treatments was evaluated on the basis of the fresh weight of the aerial parts of plants and the number of runners of the selected 10 plants from each plot and the yield. Chlorophyll was also evaluated as a quantitative and qualitative analysis of content in plants treated with EM. After 6 applications of EM increased of weight of strawberry aboveground parts was noted. Increasing the concentration to 10% did not result in improvement of the parameters of plant growth, or increase in the number of runners. The use of higher frequency of treatments did not affect the improvement of plant growth. Similar trends were observed for yield. There was no effect of EM treatment on the content of chlorophyll.
Źródło:: Zagadnienia Doradztwa Rolniczego; 2013, 73, 3; 46-55
1232-3578
2719-8901
Pojawia się w:: Zagadnienia Doradztwa Rolniczego
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The effect of exogenous proteases on selected hematological and serum biochemical parameters in boars
Autorzy:: Zielonka, L
Przewoski, W.
Gajecka, M.
Jakimiuk, E.
Gajecki, M.
Powiązania:: https://bibliotekanauki.pl/articles/32369.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: boar
farm animal
pig
enzymatic complex
enzymatic growth promoter
hematological parameter
serum
biochemical parameter
proteolytic enzyme
physiological norm
nitrogen metabolism
Opis:: The increasing interest in enzymatic growth promoters prompted this investigation of the effect of an enzymatic stimulating complex on selected hematological and serum biochemical parameters in boars. The enzymatic complex [five proteases (proteinases-endopeptidases) and two peptidases (exopeptidases) obtained by fermentation from Streptomyces fradiae] was added to diets for three months, at initial doses of 90 (group El) and 120 (group E2) g/ton feed for the first seven days followed by 40 and 60 g/ton, respectively, in the subsequent weeks. The evaluation was based on selected hematological (RBC, WBC, HCT (Ht), HGB (Hb), MCV, MCH, and MCHC) and biochemical (AST, ALT, AP, Ca, Mg, urea, cholesterol, creatinine, inorganic phosphorus, and oxyglucose) parameters determined before and after the experimental period. The reported values were within physiological norms. Statistical differences were found between experimental groups with respect to WBC, HCT (Ht), MCV, MCH, AP, Ca, Mg, creatinine, and inorganic phosphorus. The study results indicate that the complex of proteolytic enzymes administered to boars caused no negative changes in their metabolic profiles. The statistically different hematological and serum biochemical parameters, while within normal limits, point to an early stage of microcytic anemia and heightened agitation that could be the result of intensified nitrogen metabolism.
Źródło:: Polish Journal of Veterinary Sciences; 2010, 13, 1; 151-156
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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