A study was conducted to determine the phytotoxic effect of mercury on seed germination and seedling growth of an important arid legume tree albizia lebbeck the seeds germination and seedling. Germination of two rice (oryza sativa l) cultivars (ratna and ir 36) in the presence of 10 µm pbcl2 and 10 µm hgcl2 decreased germination percentage, germination index, shoot/root length, tolerance index and dry mass of shoots and roots mercury was more toxic than lead reduced glutathione (gsh. Effects of metals on seed germination, root elongation, and coleoptile and hypocotyl growth in triticum aestivum and cucumis sativus o munzuroglu,1 h geckil2 1 department of biology, school of arts and sciences, firat university, elazig 23169, turkey. However, temporal changes in effect varying with exposure period, salinity induced changes in effect, changes in effect varying with metal concentration and the range of types of effects observed (ie delay and inhibition of germination and toxicity) suggest multiple impingement sites of mercury and cad- mium on seeds of s alterniflora.
Effect of heavy metals on seeds nickel (ni) is reported to be toxic to most plant species affecting amylase, protease and ribonuclease enzyme activity thus retarding seed germination and growth of many crops[. To tolerate the mercury toxicity to a certain extent when compared with the rest of the cultivars taken up for the present study key ward: vigna radiata,green gram, mercury, seed germination.
The effects of gamma radiation are investigated by studying plant germination, growth and development, and biochemical characteristics of maize. The results were that the germination was 100% with the controls, tap and distilled water on the groups exposed to salt water, the germination decreased as the salt concentration increased, and no germination occurred at amounts of 15 tsp of salt or higher. Germination of nigella sativa seeds under various conc of malathion stress on 10th day effect on germination from fig:3 germination percentage can be estimated. The present investigation reports the results of the effects of mercury on seed germination, coleoptile growth and root elongation of four vegetables the effects of seven serial doses of mercury (0, 01, 02, 04, 08, 16 and 32 mm) on four vegetable crops were studies.
The effects of environment on seed germination the seed is more than just a plant waiting to happen it is a complex marvel of evolution, a. Temperature affects the percentage of seeds that germinate and the rate of germination seeds kept at higher temperatures are more likely to deteriorate and not germinate once seeds start to germinate, higher temperatures stimulate faster germination up to an optimal temperature, after which the. Different doses of mercury have different effects on seed germination at high concentrations, the metal is capable of causing the death of the seed embryos because oxidative stress is generated and important cellular components are damaged. The seed germination, chlorophyll and protein content of groundnut the result was showed that there was clear effect of hgcl 2 concentration on groundnut compare to control.
The phytotoxic effect of mercury on seedling dry weight was observed at high concentration, 2000 µm to improve seed germination in stressful conditions [10, 11. Effect of seed germination purpose: to see the effect of an acid introduced during seed germination, on the length of the plant roots also shows how salt can affect the seed germination acid can be introduced to seeds during germination if there is acid rain. Among the toxic elements release in the environment, mercury is considered highly toxic to the growth of plants the present studies report the effects of different concentrations (1, 3, 5 and 7 mm) of mercury on seed germination and seedling growth performance of mungbea (vigna radiata) as compared to control. Explain any inhibitory effect on seed germination at low concentration except in tomato, but in onion the germination was much higher (84%) at 10% concentration as beside 63% in the. The present studies report the effects of different concentrations (1, 3, 5 and 7 mm) of mercury on seed germination and seedling growth performance of mungbea (vigna radiata) as compared to control.
Showed reduced seed germination under the influence of heavy metals and the control showed normal seed germination mercury was seen to be the most inhibitory metal which caused complete inhibition of germination of gram seeds. The seed germination and plant growth were significantly affected by cd +2 and cr +6 at 10 ppm, as well as by cu +2 and ni +2 at 20 ppm and higher concentra- tions. We treated s europaea seeds with four different salts at a range of concentrations (1) to examine germination and recovery in dimorphic seeds of s europaea under various salinity conditions, and (2) to test the effects of various salts on na + and k + accumulation during seedling development.
Effect of hg on seed growth is more pronounced, it can be safely assumed, based on the inhibition concentration and ed 50 , data that the seagrass is more sensitive. A study was conducted to determine the phytotoxic effect of mercury on seed germination and seedling growth of an important arid legume tree albizia lebbeck the seeds germination and seedling growth performance of a lebbeck responded differently to mercuric chloride treatment (1 mm, 3 mm, 5 mm and 7 mm) as compared to control. Effect of mercury on seed germination and seedling growth of mungbean 192 muhammad, zafar iqbql 1, maria, khan siddiqui 1, mohammad, athar2, 3 muhammad, shafiq 1, zia-ur-rehman, farooqi1 muhammad.