Wszystkie pola: T-stress - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effect of titanium application on lettuce growth under Mn stress
Autorzy:: Kleiber, T.
Powiązania:: https://bibliotekanauki.pl/articles/960152.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Titanium (Ti) is classified as a beneficial element for plants. The aim of this study was to determine the effect of various Ti concentrations in nutrient solution on the alleviation of Mn-stress in hydroponically grown lettuce (Lactuca sativa L. cv. Zeralda). Plants were fertigated with nutrient solution of the following chemical composition (mg dm-3): N-NH4 < 10, N-NO3150, P-PO4 50, K 150, Ca 150, Mg 50, Fe 3.00, Mn 19.2, Zn 0.44, Cu 0.03, B 0.01, pH 5.50, EC 1.8 mS cm-1. The following Ti levels were tested (in mg Ti dm-3 of nutrient solution): 0 (control), 0.36; 0.72; 1.09 (denoted as Ti-I, Ti-II, Ti-III). The Ti source was Ti4+ ascorbate (Tytanit®). Ti had a positive effect on plant yielding: significantly the highest mean weight of a lettuce head and also the highest percentage of dry matter in leaves were found at Ti-II (+24.1% and 36.6%, respectively when compared with the control). Increasing Ti nutrition positively influenced the chlorophyll content (which was the highest at Ti-II and Ti-III), while it did not modify the Relative Water Content (RWC) in leaves. Despite the improved plant yielding, there were no differences in concentrations of macroelements (N, P, K, Ca, Mg) and some metallic microelements (Fe and Mn) in leaves. In turn, Ti nutrition significantly modified the nutrient uptake by aerial parts of plants, which increased up to Ti-II, while decreasing at Ti-III. The highest uptake of nutrients was recorded at Ti-II. Given the significant improvement in yield, Ti nutrition could be considered as an effective method to alleviate Mn-stress in lettuce.
Źródło:: Journal of Elementology; 2017, 22, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: The response of hydroponically grown lettuce under Mn stress to differentiated application of silica sol
Autorzy:: Kleiber, T.
Krzesinski, W.
Przygocka-Cyna, K.
Spizewski, T.
Powiązania:: https://bibliotekanauki.pl/articles/15095.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: plant response
hydroponic cultivation
lettuce
Lactuca sativa
fertigation
foliar spray
macroelement
microelement
silicon
manganese
stress
Opis:: A way to alleviate excessive Mn nutrition of plants is through silicon application. The aim of the present study was to examine the effect of different Si concentrations in a nutrient solution and Si plant spraying treatments (in the form of silica sol) on the yielding and nutritional status of hydroponically grown lettuce under Mn-stress. The experiments were conducted under controlled conditions in a phytotron. The influence of the following Si levels in the nutrient solution (5.5 – control; 15.5; 23.25 and 31 mg Si dm-3) and foliar sprays (distilled water; Si solution) were investigated. Silicon supplied through fertigation significantly affected the plant’s nutrient status and alleviated the Mn stress, increasing fresh matter production, RWC (Relative Water Content) and the number of leaves per plants, while decreasing the share of dry matter. The Si nutrition did not change the content of Mn in the leaves, but caused a significant increase in N, P, Na, Fe and Si concentrations with a simultaneous decrease of Zn and Cu levels. The content of Ca, Mg and K was relatively stable (except for the treatment with the most intensive Si nutrition). Generally, the concentrations of N, P, K, Ca, Mg, Na and Fe within the tested Si range were higher than in the control, while being lower in the case of Zn and Cu. Overall, the foliar application of Si did not change plant yielding, the number of leaves on plants and most macro- and microelement concentration in leaves, but modified significantly the RWC as well as the Cu and Na content. The dry matter content under Si nutrition was varied. In summary, an effective method to alleviate Mn-stress is to apply silica sol to a nutrient solution used for plant fertigation.
Źródło:: Journal of Elementology; 2015, 20, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The effect of choline-stabilized orthosilic acid application on tomato grown under increasing Mn stress
Autorzy:: Kleiber, T.
Bosiacki, M.
Bres, W.
Powiązania:: https://bibliotekanauki.pl/articles/13946.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: choline-stabilized orthosilic acid
application
silicon
Lycopersicon esculentum
fertigation
tomato plant
manganese
plant stress
yielding
leaf
fruit
macronutrient
Opis:: The aim of the study has been to assess the efficiency of choline-stabilized orthosilic acid (ch-OSA; bioavailabile form of silicon) application under increasing intensity of manganese stress on the chemical composition of plants and yielding of tomato (Lycopersicon esculentum Mill. cv. Alboney F1 and cv. Emotion F1). Plants were grown in rockwool with the application of a nutrient solution of the following chemical composition (mg dm-3): N-NH4 2.2, N-NO3 230, P 50, K 430, Ca 145, Mg 65, Cl 35, S-SO4 120, Fe 2.48, Zn 0.50, Cu 0.07; pH 5.50, EC 3.00 mS cm-1. The following manganese levels in the nutrient solution were tested (mg dm-3): 9.6 and 19.2. The effect of ch-OSA application (at a concentration of Si equal 0.3 mg dm-3 of the nutrient solution) was investigated at both Mn-levels. The ch-OSA application alleviated Mn toxicity by increasing the biomass production in the Mn-low variant (+ 8.2% for Alboney F1 and 16.8% for Emotion F1, the differences being significant for Emotion F1), whereas the ch-OSA application in the Mn-high variant did not influence the plant yielding. All the factors affected the plant nutrient status and the chemical composition of tomato fruits. The chemical composition of leaves depended on (means of all the studied combinations): Mn (K, Na) and ch-OSA nutrition (N, Mg, Na), cultivar (for P, K, Ca, Na), but in the case of fruits significant differences were found between Mn (N, P, Ca, Mg) and ch-OSA nutrition (N, Mg, Na) and cultivar (N, P). In both Mn-levels, visual symptoms of manganese toxicity appeared on plants – in the Mn-high variant, they were observed after 4 weeks, while in the case of the Mn-low variant - after 10 weeks of exposure to strong Mn-stress. Treatment with ch-OSA at both of the studied Mn levels did not prevent the development of visual toxicity symptoms on the plants.
Źródło:: Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "T-stress" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język