Impact of Red Brome and Drought on 3 Native Californian Plants

I am currently running an experiment to observe how an invasion of red brome impacts the growth and success of 3 native Californian plants (Plantago insularis, Phacelia tancetifolia, Salvia columbariae) across 5 different watering regimes. These watering regimes simulate conditions from extreme drought to very wet years. The experiment utilizes a total of 300 pots with 10 replicates per treatment; 100 pots are being used for each species, with 50 of those pots containing brome and 50 lacking brome.

As the experiment progresses 4 measurements will be obtained:

  1. Germination Success
  2. Establishment by 5 weeks
  3. Final Census
  4. Total Biomass production at the conclusion of the experiment