Investigations into salt resistance have, unfortunately, mainly been focused on conventional crops, with few studies screening the potential of available halophytes as new crops. Your experiments will give you the results. In agricultural production, soil salinity has been a major contributing factor to soil degradation. With increasing salt concentration, the germination percentage decreased, irrespective of the treatment, except for MgCl 2. This study has been carried out to investigate the mechanisms used by quinoa, a facultative halophytic species, in order to cope with high salt levels at various stages of its development. More cations were accumulated in shoots than in roots, decreasing in shoots when NaCl and MgCl 2 concentrations increased, while roots accumulated more anions than cations.
Label the top and bottom of each plate with the letter of the solution to be used in each one A through J. This is because the data showed that the seeds set to germinate in tap water had the highest germination rate, for 95% of the seeds germinated, the seeds set to germinate in water saturated with salt had the lowest germination percentage, at 40%, and, as predicted, the percentage of seeds set to germinate in water saturated with sugar had a germination rate in-between those of tap water, and water saturated with salt, at 85%. Measurements of oxygen evolution of the seed cotyledons Four replicates of 50 seeds were used in all analyses for the three species. Seed germination percentage decreases with the increase of concentration of saline water. No seed germination is observed in petri-dish No.
Place same number of seeds in another set of petri- dishes lined with blotting paper and moistened with distilled water. Remember to pour the solution on the seeds in the petri dish with the label 1%. While the germination of the euhalophyte S. Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Statistical analyses Germination data were transformed arcsine before statistical analysis were undertaken in order to ensure homogeneity of variance. Seeds were placed in a petri dish and moistened with distilled water for 1 day or in 700 mM NaCl for 10 days at constant temperature 20°C and in darkness, seed coats of 10 ungerminated seeds were removed and the cotyledons were cut into 1 × 1 mm 2 pieces.
Leaves are small, sensitive, bipinnate; leaflets about 16 pairs; petioles up to 4 cm long. This decrease in the seed germination is due to the presence of pollutants in the water. Seed sodium concentration increased with time and with increases in environmental salt concentration. Quinoa is considered a major alternative crop to meet food shortages in this century ; ; ; ; , for its gluten-free seeds and also as its grains provide a rich source of a wide range of minerals Ca, P, Mg, Fe and Zn , vitamins B 1, B 9, C and E , linolenate, natural antioxidants and high-quality protein, containing ample amounts of essential amino acids such as lysine and methionine ;. The germination index was estimated using the following equation : 1 where n i is the percentage of seeds germinating on the ith day, t i is the number of days counted from the start of the experiment i to k, the last day on which seeds germinated.
Another anomily exists in the 0. One of the ways they get rid of the salt is to flood the fields with water to let the salt leech out. An abstract is a short summary of everything in your experiment. Determination of chlorophyll content Three replicates of seeds for each species were placed in a petri dish and moistened with distilled water for 1 day or in 700 mM NaCl for 10 days at constant temperature 20°C and in darkness. Short term incubation of sorghum caryopses in sodium chloride levels: changes in some pre- and post-germination physiological parameters. Even if salinity reduced the productivity in terms of biomass, there was an increase in the antioxidant compounds, important health-protecting factors in food. All reagents used were of the highest analytical grade and were purchased from Sigma Chemical Co.
Thus, the high salt levels in non-germinating seeds may accumulate rapidly. Observations: Result: 50% reduction in seed germination in the polluted air confirms that polluted air inhibits seed germination. Design — Part A 1. The principal food use of wheat is as bread, either leavened or unleavened Access Online Encyclopaedia, accessed Monday 23rd of February. The effect of constant temperatures and osmotic potentials on the germination of sugarbeet.
In fourth set of petri-dish also place 25 seeds and add large quantity of water so that seeds get completely submerged in water. Also, the radish seeds used in this experiment were all bought from the same store on the same day, and were from the same pack. Since different papers absorb differently, you will need to adjust the amount to fit your paper. Recent investigations have shown that the cotyledons of desiccated seeds of the studied species are dark green and contained chlorophyll ; ;. Check each bag every day to make sure that the paper towel or coffee filter is moist but not wet.
Black bars represent germinating seeds in NaCl solution or control , and white bars represent non-germinating seeds in NaCl or control. I have not done this experiment with mung beans, but I have grown them. The data we collected was insufficient as we only had 8 out of 25 petri dishes have seeds with visible radicles. Label each of the petri dishes with either a 0%, 1%, 2% and 3% according to the percentage of salinity in the water that each will be watered with. Most of the studies on the effect of salinity on seed germination of halophytes have, however, been conducted using NaCl solutions. This led to the inclusion of the data from day four, as the testa cracking is an indicator of the start of germination. Keep up the good work, your approach is well-appreciated and you are good at demonstrating thorough processes.