Environmental Impacts of Crop Genetics: Weed Evolution


Tentative: Feb. 25-April 5, 2019

Professional Certificate

One unit


Dr. Melinda Yerka


Noncredit Professional Development


Herbicides have been used in agriculture since the 1950s, and quickly resulted in the spread of herbicide-resistant weeds. Originally, naturally-occurring mutations were the source of herbicide resistance in weed populations, but with the advent of advanced crop genetic technologies (such as herbicide resistance), crop-to-weed gene flow has emerged as another source of resistance. The goal of this module is to help learners understand how selective pressures are applied to plant populations both in breeding programs and on weed populations growing in fields, to understand outcomes in plant response and competitive ability. Individuals will learn how to connect applied weed ecology studies with plant breeding, genomics, and biochemistry resources to identify mechanism(s) of herbicide resistance or other adaptive traits. Individuals will also learn how to assess the environmental impacts of new crop traits in greenhouse, field and landscape-level environments. Understanding the connection between genotype and phenotype in all plant species within an agroecosystem will improve systems-based thinking and lead to interdisciplinary collaborations within the plant sciences to improve sustainability.


The module will be held in the Campus Extension virtual class. See the attached Syllabus. This module has an online section only. Lectures have been recorded and learners will be expected to have completed reading assignments for each day’s lecture. The instructor will be available to answer questions via email, telephone or in her office by appointment. Please contact Kathy Schindler at kschindler1@unl.edu, if you haven’t received the class password.


High-speed Internet access with an updated browser, email, and ability to view videos. Recommended browsers include Chrome, Firefox and Safari.


None. All materials will be made available via the Internet.


Crop & Weed Genetics as well as general coursework in plant science, genetics and/or biology and enrollment in the Department of Agronomy & Horticulture’s Plant Breeding & Genetics professional certificate.


Noncredit Professional Development Module: $270 for 1 unit

Who it's for

Among those who would benefit from taking this session are:

  • Plant Breeding & Genetics professional development certificate participants
  • Seed industry personnel
  • Extension educators, agents and specialists
  • Certified professional agronomists and crop consultants