Foliar fertilizer increases herbicide tolerance in maize inbred lines
Конференцијски прилог (Објављена верзија)
Метаподаци
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Plant response to herbicides is very important in agriculture, especially in maize seed production.
Due to inbreeding process, inbred lines are more susceptible to herbicides comparing to hybrids.
Herbicide application is still the most effective method for weed control. Also, insufficient herbicide
selectivity can be limited factor in seed crop production. Herbicides can cause visual plant damages
or slow down plant development and finally decrease grain yield. On the other hand, dominance
of grass weeds in maize crop occurs due to a lack of selective herbicides for their control. With
sulfonylurea herbicides this problem became under control, but a problem with selectivity is still
present, particularly in maize seed crop. Optimal plant nutrition provides better crop fitness and
higher tolerance to herbicides. In case of foliar fertilizing, fast entry of macro- and micro-elements
into plants also influence better plants response to herbicides and other negative impa...cts.
The effect of sulfonylureas and foliar fertilizer on five maize lines was evaluated in three year field
experiment. This was done by visual estimation, grain yield measuring, as well as the alterations in
the content of antioxidants such as phenolics free thiolic groups, and soluble proteins in the leaves.
Positive effects of applied foliar fertilizer were observed on grain yield. Most of the genotypes
expressed significant increase of grain yield in the treatments with foliar fertilizer, compared to
control and analogous treatments with herbicides. Alternations in free thiolic groups and phenolics
content was significantly influenced by applied treatments. The differences in the content of
phenolics and thiolic groups in the treatments with herbicides + foliar fertiliser indicated that
herbicide stress was more rapidly overcome. On the other hand, soluble protein content did not
vary significantly maize leaves from observed treatments.
Кључне речи:
foliar fertilizer / herbicides / maize inbred lines / yieldИзвор:
18. European weed research society symposium "EWRS 2018", Ljubljana, 17-21.06.2018. - Book of abstracts, 2018, 214-214Издавач:
- Ljubljana : Kmetijski inštitut Slovenije