Date of Award


Degree Name

MS in Environmental Sciences and Management


Natural Resources Management


College of Agriculture, Food, and Environmental Sciences


Nicholas Babin

Advisor Department

Natural Resources Management

Advisor College

College of Agriculture, Food, and Environmental Sciences


Heat tolerant trials of vegetable crops will help to improve food security when it becomes affected by rising temperatures due to climate change. By having heat tolerant vegetable crops, we can ensure the well-being of individuals in our society—nutritionally, economically, and socially. California is responsible for 90% of the cauliflower production in the United States. This research aims to determine the overall productivity of three heat tolerant cauliflower varieties (Bishop, Mardi, Flame Star) during the summer months (July- September) on California’s central coast. Stomatal conductance and chlorophyll fluorescence were measured throughout the growing cycle to evaluate plant stress and photosynthetic rate; the results were similar for each variety but had a large variation among the data collected from each plant. Ecological data, such as soil temperature, herbivory, height and soil moisture, were similar for each cauliflower variety throughout the growing season as well. The Bishop and Flame Star varieties produced similar yields of 27.34 pounds (Bishop) and 33.53 pounds (Flame Star), although the Mardi variety did not produce any marketable curds. The three varieties performed similarly, in terms of photosynthetic productivity and ecological data, which indicates that there are alternate dynamics related to biotic or abiotic stress that need to be evaluated in order to determine why the Bishop and Flame Star varieties yielded quality, marketable cauliflower curds relative to the Mardi variety.

Included in

Biosecurity Commons