Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines
Abstract
High weed infestation of seed crops often makes various measures that should be performed at the optimum time difficult, hence post-emergence herbicides have become the usual way of weed control in maize seed crops. The introduction of sulfonylurea herbicides has resulted in a higher susceptibility in maize inbreds. The aim of this study was to examine the effects of six post-emergence herbicides, including sulfonylurea herbicides, on the contents of fresh matter, soluble proteins, free thiolic groups and total phenolics in one-month-old plants, as well as on the grain yield of 15 commercial ZP maize inbred lines. The obtained results show that inbred plants have a whole range of responses to herbicide application. The changes in content of phenolics did not vary over a broad range among the applied herbicides; they followed mainly the level observed in control plants. However, greater variations between the results were obtained for the content of free thiolics, which are defenders ag...ainst oxidative attack. The overall influence of herbicides could be considered as a decrease in the content of thiolics. Most of the applied herbicides expressed temporary stress, evidenced by a decrease in the fresh matter of the shoots, without affecting of yield at the end of vegetation. This could be connected to recovery mechanisms that include the activity of antioxidants, primarily of thiolics.
Keywords:
maize inbred lines / herbicides / phytotoxicity / soluble proteins / antioxidantsSource:
Fresenius Environmental Bulletin, 2010, 19, 8, 1499-1504Publisher:
- Parlar Scientific Publications (P S P), Freising
Funding / projects:
Collections
Institution/Community
MRIZPTY - JOUR AU - Dragičević, Vesna AU - Simić, Milena AU - Stefanović, Lidija AU - Sredojević, Slobodanka PY - 2010 UR - http://rik.mrizp.rs/handle/123456789/345 AB - High weed infestation of seed crops often makes various measures that should be performed at the optimum time difficult, hence post-emergence herbicides have become the usual way of weed control in maize seed crops. The introduction of sulfonylurea herbicides has resulted in a higher susceptibility in maize inbreds. The aim of this study was to examine the effects of six post-emergence herbicides, including sulfonylurea herbicides, on the contents of fresh matter, soluble proteins, free thiolic groups and total phenolics in one-month-old plants, as well as on the grain yield of 15 commercial ZP maize inbred lines. The obtained results show that inbred plants have a whole range of responses to herbicide application. The changes in content of phenolics did not vary over a broad range among the applied herbicides; they followed mainly the level observed in control plants. However, greater variations between the results were obtained for the content of free thiolics, which are defenders against oxidative attack. The overall influence of herbicides could be considered as a decrease in the content of thiolics. Most of the applied herbicides expressed temporary stress, evidenced by a decrease in the fresh matter of the shoots, without affecting of yield at the end of vegetation. This could be connected to recovery mechanisms that include the activity of antioxidants, primarily of thiolics. PB - Parlar Scientific Publications (P S P), Freising T2 - Fresenius Environmental Bulletin T1 - Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines VL - 19 IS - 8 SP - 1499 EP - 1504 UR - conv_766 ER -
@article{ author = "Dragičević, Vesna and Simić, Milena and Stefanović, Lidija and Sredojević, Slobodanka", year = "2010", abstract = "High weed infestation of seed crops often makes various measures that should be performed at the optimum time difficult, hence post-emergence herbicides have become the usual way of weed control in maize seed crops. The introduction of sulfonylurea herbicides has resulted in a higher susceptibility in maize inbreds. The aim of this study was to examine the effects of six post-emergence herbicides, including sulfonylurea herbicides, on the contents of fresh matter, soluble proteins, free thiolic groups and total phenolics in one-month-old plants, as well as on the grain yield of 15 commercial ZP maize inbred lines. The obtained results show that inbred plants have a whole range of responses to herbicide application. The changes in content of phenolics did not vary over a broad range among the applied herbicides; they followed mainly the level observed in control plants. However, greater variations between the results were obtained for the content of free thiolics, which are defenders against oxidative attack. The overall influence of herbicides could be considered as a decrease in the content of thiolics. Most of the applied herbicides expressed temporary stress, evidenced by a decrease in the fresh matter of the shoots, without affecting of yield at the end of vegetation. This could be connected to recovery mechanisms that include the activity of antioxidants, primarily of thiolics.", publisher = "Parlar Scientific Publications (P S P), Freising", journal = "Fresenius Environmental Bulletin", title = "Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines", volume = "19", number = "8", pages = "1499-1504", url = "conv_766" }
Dragičević, V., Simić, M., Stefanović, L.,& Sredojević, S.. (2010). Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines. in Fresenius Environmental Bulletin Parlar Scientific Publications (P S P), Freising., 19(8), 1499-1504. conv_766
Dragičević V, Simić M, Stefanović L, Sredojević S. Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines. in Fresenius Environmental Bulletin. 2010;19(8):1499-1504. conv_766 .
Dragičević, Vesna, Simić, Milena, Stefanović, Lidija, Sredojević, Slobodanka, "Possible toxicity and tolerance patterns towards post-emergence herbicides in maize inbred lines" in Fresenius Environmental Bulletin, 19, no. 8 (2010):1499-1504, conv_766 .