Note: 1 CF is equivalent to 500 parts per million (ppm). According to the nutrient meter, readings are within 4% of accuracy.

    Data from first week. Sunflowers were expected to absorb nutrients and naturalize themselves with the hydroponic system,
Notes: Notice that the greatest loss in nutrients occurred during the peak of temperature. During the days of lowest temperature, nutrient intake flatlined. CF is taken of nutrients in a 2 liter solution shared by 2 specimens.

    Specimen notes: Both plants exhibited hardiness and growth potential during trial period. Lower leaves lost color and wilted, most likely due to transplant shock. By 3rd day, however, roots were established in medium and growth peaked. New leaves were created at apical meristem.

Week 1 Control System (2 specimens) Day 1  Day 2 Day 3 Day 4 Day 5 Day 6
CF (Conductivity Factor) 1914.5  13 12 12 11
Average Temp. (F) 56 62 58 57.5 57 58

Before and After for Week One

Google Chart

    Data from second week: Perchlorate solution was introduced into Sunflower B, with CF initially at 8. Levels dropped by 1500 ppm within one week. Nutrients were taken from 1 liter of solution which fed 1 plant.

    Notes: Once again, temperature seems to be a factor in photosynthesis, which affects absorption rates. Both plants continued growth, but Sunflower B showed small amounts of stress (please see Observations). 

Week 2 Perchlorate System (1 specimen) Day 1  Day 2 Day 3 Day 4 Day 5 Day 6
CF 8 7 6 5 5
Average Temp. 62 60.5 55 53.5 55 58

Before and After Week 2 (Sunflower A) 

Google Chart

Before and After Week 2 (Sunflower B)