Volume 3, Issue 2 ((Autumn & Winter) 2017)                   Iranian J. Seed Res. 2017, 3(2): 15-30 | Back to browse issues page


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Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran , shahram_nazari1986@yahoo.com
Abstract:   (16350 Views)

Gaining insights into the germination and emergence patterns of weeds as well as the factors which have an impact on these patterns is beneficial for weeds management programs. In order to investigate the effect of temperature, waterlogging and salinity on germination and emergence of common lambsquarters, three separate experiments were conducted, adopting a completely randomized design with four replications. The results of the temperature experiment showed that the highest germination percentages, which were 87, 93 and 88%, were obtained in the temperature range of 15, 20 and 25°C, respectively. Maximum values of germination rate, radicle length, plumule length, and seedling dry weight were obtained at 20°C. In addition, optimum seed vigor index of 796.29 was observed at 20°C. The results of the Regression Model showed that germination percentage decreased with an increase in waterlogging duration and halted after 8 and 10 days of consecutive waterlogging. Mean comparisons revealed that radicle and plumule length, seedling dry weight and vigor index decreased significantly by increasing the period of waterlogging. Salinity adversely affected germination percentage, germination rate and seedling dry weight of common lambsquarters. These factors were at their highest amounts in the control and 50 mM NaCl treatments. A downward trend was observed in these factors as NaCl concentrations increased and finally the germination process stopped in concentrations ranging from 300 to 400 mM NaCl. Radicle and plumule length also decreased from 10.51 and 9.23 cm in the control treatment to 3.57 and 2.47 cm at 250 mM NaCl. Overall, the results revealed that the maximum seed vigor index of 851.84 was obtained in the control treatment and seed vigor halted when the salinity level increased to more than 250 mM NaCl. Finally, the results showed that optimum temperature for germination of common lamsquarters was 20 °C and the existence of salinity and waterlogging stress can decrease growth indices of this weed at germination and seedling stages.

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Type of Study: Research | Subject: Seed Ecology
Received: 2015/04/5 | Accepted: 2016/02/14

1. Abdelbagi, M.I., Ella, E.S., Vergara, G.V., and Mackill, D.J. 2009. Mechanisms associated with tolerance to flooding during germination and early seedling growth in rice (Oryza sativa). Annals Botany, 103(2): 197-209. [DOI:10.1093/aob/mcn211] [PMID] [PMCID]
2. Akhtar, I., and Nazir. N. 2013. Effect of waterlogging and drought stress in plants. International Journal of Water Resources and Environmental Sciences, 2(2): 34-40.
3. Alam, I., Lee, D.G., Kim, K.H., Park, C.H., Akhtar, S., Lee, H., Oh, K., Yunand, B.W., and Lee, B.H. 2010. Proteome analysis of soybean roots under waterlogging stress at an early vegetative stage. Journal of Biosciences, 35(1): 49-62. [DOI:10.1007/s12038-010-0007-5] [PMID]
4. Baird, J.H., and Dickens, R. 1991. Germination and emergence of Virginia Buttonweed (Diodia virginiana). Weed Science, 39(1): 37-41.
5. Begum, M., Jurami, S.A., Amartalingam, R., BinMan, A., and Rastans, S.O.B.S. 2006. The effects of sowing depth and flooding on the emergence, survival, and growth of (Fimbristylis miliacea L.) Vahl. Weed Biology and Management, 6(3): 157-164. [DOI:10.1111/j.1445-6664.2006.00209.x]
6. Ben Dakhil, B., and Denden, M. 2012. Salt stress induced changes in germination, sugars, starch and enzyme of carbohydrate metabolism in Abelmoschus esculentus L. (Moench.) seeds. African Journal of Agricultural Research, 5(12):1412-1418.
7. Blackshaw, R.E., Brandt, R.N., and Entz, T. 2002. Soil temperature and soil water effects on henbit (Lamium amplexicaule). Weed Science, 50(4): 494-497. [DOI:10.1614/0043-1745(2002)050[0494:STASWE]2.0.CO;2]
8. Bradford, K.J. 2002. Application of hydrothermal time to quantifying and modeling seed germination and dormancy. Weed Science, 50(20: 248-260. Chauhan B., gill, S.G., and Preston, C. 2006. Factors affecting seed germination of annual sowthistle (Sonchus oleraceus) in southern Australia. Weed Science, 54(5): 854-860. [DOI:10.1614/WS-06-047R.1]
9. Christopher L.S., Shoup D.E., and Al-Khatib K. 2007. Response of common lambsquarters (Chenopodium album L.) to glyphosate as affected by growth stage. Weed Science, 55(2): 147-151. [DOI:10.1614/WS-06-130.1]
10. Dastoori, M., Shahbazi, S., Bayat, V., Moghanolo, G.D., Malekian, A., and Amiri, S. 2012. The relative fitness of ACCase inhibitor resistant and susceptible annual ryegrass (Lolium rigidum) accessions affected by the different temperatures and light periods. International Journal of Agriculture and Crop Sciences, 4(5): 220-225.
11. Datta, J.K., Nag, S., Banerjee, A., and Mondal, N.K. 2009. Impact of salt stress on five varieties of wheat (Triticum aestivum L.) cultivars under laboratory condition. Journal of Applied Sciences and Environmental Management, 13(3): 93-97.
12. El Goumi, Y., Fakiri, M., Lamsaouri, O., and Benchekroun, M. 2014. Salt stress effect on seed germination and some physiological traits in three Moroccan barley (Hordeum vulgare L.) cultivars. Journal of Materials and Environmental Science, 5(2): 625-632.
13. Forcella, F., Benech-Arnold, R.L., Sanchez, R., and Ghersa, C.M. 2000. Modeling seedling emergence. Field Crops Research, 67(2): 123-139. [DOI:10.1016/S0378-4290(00)00088-5]
14. Gairola, K.C., Nautiyal, A.R., and Dwivedi, A.K. 2011. Effect of temperatures and germination media on seed germination of Jatropha Curcas Linn. Advances in Bioresearch, 2(2): 66-71.
15. Jones, R.J., 2002. Effect of duration of flooding on germination and emergence of sown Stylosanthes seed. Tropical Grassland, 36(2): 97-101.
16. Khan, M.A., and Gulzar, S. 2002. Germination responses of Sporobolus ioclados: a saline desert grass. Journal of Arid Environment, 53(3): 387-364. [DOI:10.1006/jare.2002.1045]
17. McWhorter, C.G. 1972. Flooding for Johnson grass control. Weed Science, 20: 238-241.
18. Moechnig M.J., Stoltenberg D.E., Boerboom, C.M., and Binning, L.K. 2003. Empirical corn yield loss estimation from common lambsquarters (Chenopodium album) and giant foxtail (Setaria faberi) in mixed communities. Weed Science, 51(3): 386-393. https://doi.org/10.1614/0043-1745(2003)051[0386:ECYLEF]2.0.CO;2 [DOI:10.1614/0043-1745(2003)051[0363:GIICOC]2.0.CO;2]
19. Ramos, L.M.P., and Maranon, T. 2009. Effects of waterlogging on seed germination of three Mediterranean oak species: Ecological implications. Acta Oecologica, 35(3): 422-428. [DOI:10.1016/j.actao.2009.01.007]
20. Reddy, K.N., and Singh, M. 1992. Germination and emergence of hairy beggarticks (Bidens pilosa). Weed Science, 40(2): 195-199.
21. Saric. M., Bozic, D., Pavlovic, D., Elezovic, I., and Varbnicanim, S. 2012. Temperature on common cocklebur (Xanthium strumarium L.) seed germination. Romanian Agricultural Research, 29: 389-393.
22. Turhan, A., Kuscu, H., and Seniz, V. 2011. Effects of different salt concentrations (NaCl) on germination of some spinach cultivars. Journal of Agricultural Faculty of Uludag University, 25(1): 65-77.
23. Zhang, Q., Rue, K., and Wang, Sh. 2012. Salinity effect on seed germination and growth of two warm-season native grass species. Horticulture Science, 47(4): 527-530.
24. Zhou, J., Deckard, E.L., and Ahrens, W.H. 2005. Factors affecting germination of hairy nightshade (Solanum sarrachoides) seeds. Weed Science, 53(1): 41-45. [DOI:10.1614/WS-04-100R1]