availability of aluminum is favored by soil acidity [5]. The available aluminum limits the productivity of plants, being considered a stress-causing agent that will influence the germination process, because according to [6] besides reducing the germination it still exerts decisive influences on the metabolism of the seeds.
Machado et al. (2015), ao avaliarem a germinação de sementes de Jatropha curcas L. expostas a cinco concentrações de Al, encontraram que o elemento diminuiu …
Aluminum (Al) is an important element in soil constitution. Previous studies have shown that high concentration of Al affects the normal growth of crops, resulting in crop yield reduction and inferior quality. ... Yan, G. Aluminium effects on pollen germination and tube growth of Chamelaucium uncinatum. A comparison with other Ca 2+ antagonists ...
Although previous results showed that exogenous hydrogen (H 2) alleviated aluminum (Al) toxicity, the detailed mechanism remains unclear.Here, we reported that the exposure of germinating rice seeds to Al triggered H 2 production, followed by a decrease of GA/ABA ratio and seed germination inhibition. Compared to inert gas (argon), H 2 …
The aim of this work was to determine the germination parameters, to quantify the water status and growth, to assess the Al accumulation, and antioxidant …
number of seeds germinated to the total number of seeds tested (Ashraf & Abu-Shakra, 1978). • Germination capacity (GCp) is the percentage of seeds that have been germinated during the germination process (Labouriau, 1983) and it was tested by the formula: Where ni is the cumulative number of seeds germinated at each obser - vation.
Germination of ga1-3 seeds in the dark was stimulated by cutting the seed coat (Telfer et al., 1997). Sterilized seeds were plated in medium containing the indicated concentration of phytohormones. Plates were wrapped in three layers of aluminum foil and kept in an opaque box in the same 22°C incubator used for the germination experiments.
High concentration of aluminum ion (Al3+) in acidic soil often negatively affects plant growth. To deepen understanding of the mechanisms of physiological response to Aluminum (Al) toxicity, changes in physiology and cell ultrastructure of oil tea (Camellia oleifera) were investigated under different Al levels. Oil tea plants were grown in pots …
Aluminum is the most abundant metal and the third most abundant element, after oxygen and silicon, in the earth's crust. It is widely distributed and constitutes approximately 8 percent of the earth's surface layer. However, aluminum is a very reactive element and is never found as the free metal in nature. It is found combined with other elements, most …
PME activities during germination of Arabidopsis wild-type seeds in the absence (control [CON]; green bars) and presence of 1 μ m ABA (ABA; brown bars). Data represent averages ± se of four biological replicates of about 100 seeds each. Seeds were weighed before imbibition, and the activity shown is relative to the starting seed weight. …
A tale of two spellings. Both aluminum and aluminium have a long history of use referring to the metallic element (commonly used as foil to cover food). They both date to the early 19th century, stemming from the word alumina. Aluminum became preferred in the United States and Canada, while aluminium became favored throughout the rest of the ...
germination, the sprouting of a seed, spore, or other reproductive body, usually after a period of dormancy. The absorption of water, the passage of time, chilling, warming, oxygen availability, and light exposure may all operate in initiating the process. In the process of seed germination, water is absorbed by the embryo, which results in the ...
Germination ecology of 10 species from acidic dry grasslands and 10 species from alkaline xerothermic grasslands was studied. The seeds were subjected to …
the germination physiology of okra seeds under heat stress and related unfavourable conditions such as aluminium chloride toxicity is unknown. In addition, the suitability of seed priming with Bacillus subtilis on okra is not known. Bacillus can promote plant growth directly by a variety of mechanisms and indirectly by the production of ...
Aluminium (Al) toxicity is one of the major abiotic stress problems around the globe where acidic soil is present. Al shows a toxic effect between the soil pH 4.5 and 5.5. Root growth inhibition is the most prodigious symptom of Al toxicity in plants. Aluminium toxicity adversely affects the plant growth and development which ultimately …
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Supplemental Information 3: Comparison of effects of isomolar solutions of tested metals (Me) on the ability of the seeds to complete germination Data are presented as FGPs ratio between values recorded in Experiment 2 (effect of chelated and ionic Fe) and values recorded in Experiment 3 (effect of chelated and ionic Mn), where Me means Fe and …
The second evaluated the effect of aluminium on seed germination (5, 20, 40, 80 and 160 mg L−1 Al(OH)3 at pH = 4.0 and one aluminium-free treatment at pH = 7.0). The results showed high ...
The present study deals with the impact of various levels (0, 125, 250, 500, and 1000 mg kg⁻¹) of zinc and aluminum oxides NPs on seed germination and seedling growth for both varieties ...
Effect of aluminium stress on germination and mineral nutrition of kidney bean cultivars with different sensitivity to aluminium. Aluminium is the most important element in the …
Acidity and availability of aluminum, iron and manganese as factors affecting germination in European acidic dry and alkaline xerothermic grasslands - PMC Journal List PeerJ PMC9057293 As a library, NLM provides access to scientific literature.
Boron-mediated aluminium stress tolerance under aluminium toxicity at germination and early seedling stages of wheat MH Shovon, A Sagar 1, MA Mia 1, FR Rakhi, JE Tajkia 1, MH Kabir, TH Shabi 2,
Al toxicity influenced M. domestica pollen germination rate in a concentration dependent manner. When treated with 100 μM AlCl 3, the germination rate was 29.30%, lower than 32.59% of the control pollen grains after 2 h of incubation (Figs. 1 A, B). However, when treated with 600 μM AlCl 3, the pollen germination percentage was only …
Mezzanines can be used to increase the usable floor space in a building without needing to add onto the building itself. They can be made of steel, wood, concrete, or other materials. A mezzanine space helps increase the efficiency of the space within a building. A Mezzanine floor can be a large structural steel mezzanine system, an …
Lab #4 – Objectives 1. Compare and contrast the germination and TZ tests, which are used to evaluate the level of viability (i.e., whether the seeds are alive or dead) of a seed lot or a seed sample. 2. Determine the effect of temperature, moisture, and light on the germination of selected crops. 3.
induced seed germination with K+, Cl- and Al3+ accumulation is discussed. Introduction Germination potential of seeds is an important factor for growing plants in adverse soil condition like aluminium toxicity. There are a few reports on the effect of aluminium stress on germination of seeds. Al3+ decreased seed germination in maize (Nasr 2013 ...
The aluminium solutions were monitored weekly to keep the pH equal to 4.0 ± 0.2, using NaOH or HCl, both of them at 1 mM to provide aluminium for absorption by the seeds (about relationships between aluminium and pH see Marschner (1995)). The distilled water of the relative control treatment was renewed weekly and its pH stayed at 7.0.
Delaying Seed Germination and Improving Seedling Fixation: Lessons Learned During Science and Payload Verification Tests for Advanced Plant EXperiments (APEX) 02-1 in Space ... To activate the experiment and trigger germination, aluminum foil was removed and Petri dishes that contained seeds of Col-0 and act2 act8 double …
Aluminium (Al) is a phytotoxic element affecting the growth and yield of many crop plants, especially in the tropics. ... The Netherlands), which will be referred to hereafter as 'saplings'. The nursery grew the plants from seeds obtained from the UK. The saplings were ca. 1–3 years old and 15–50 cm tall. The pH of the soil was ca. 5.5.