Biotechnological Approaches for Weed Management | Chapter 10 | Current Research in Science and Technology Vol. 1
Biotechnology has provided new
dimensions to herbicide technology. Transgenic technology has generated
herbicide-resistant crops (HRCs), which have had a profound impact on the
herbicide market. This same technology has the potential to make crops better
competitors with weeds through improving competitive traits or making the crop
more allelopathic. Living bio control agents can sometimes be applied to weeds,
much like a herbicide. In the bio herbicide approach, microbial plant pathogens
are applied to target weeds. Fungi, bacteria and viruses offer great promise as
bioherbicides. Formulations of Phytophthora palmivora (De Vine) as a selective
mycoherbicide for the control of milk weed (Morreniaodorata) in citrus, and
Colletotrichum gloeosporioides (Collego) for the control of Northern joint
vetch in rice and soybean, are now widely used in developed countries.
Extensive research has demonstrated that several allelochemicals possess good
herbicidal activity. Thus, A crop that is genetically engineered to be
resistant to yet another selective herbicide must fulfill a weed management
need that is unmet, such as those niches that were filled by bromoxynil-resistant
crops.
Author(s) Details
Bal Manohar
Department of Agronomy,
Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur,
Bihar, India.
Sushmita
Department of Seed Science
and Technology, Bihar Agricultural College, Bihar Agricultural University,
Sabour, Bhagalpur, Bihar, India.
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