**Biochemical and Molecular Knowledge about Developing Herbicide-Resistant Weeds Developing Herbicide-Resistant Weeds**

**Biochemical and Molecular Knowledge about** 

DOI: 10.5772/intechopen.69211

Mohammad Taghi Alebrahim, Rouzbeh Zangoueinejad and Te Ming Tseng Zangoueinejad and Te Ming Tseng Additional information is available at the end of the chapter

Mohammad Taghi Alebrahim, Rouzbeh

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.69211

**Abstract**

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100 Herbicide Resistance in Weeds and Crops

Herbicide resistance is the genetic capacity of a weed population to survive an herbicide treatment that, under normal use conditions, would effectively control the resistant weed population. Weeds have been evolving in conventional crop cultivars worldwide from selection pressure placed on them from repeated use of herbicides. In this chapter, we intend to explain the biochemical and molecular basis of herbicide resistance in weeds. On the other hand, herbicide resistance can be a useful tool so that weed scientists can use as important approach to control and manage weeds. There are several strategies for the production of HR crops by genetic engineering and the methods used in this process will be discussed in this chapter.

**Keywords:** herbicide resistance, biochemical mechanisms, molecular basis
