Ninth Week: Observation on growth, mildew damage, tip burn & harvest

Dear readers,

Overall, a lot of them did not look very healthy. During the eighth week, I was away for the break so I was expecting them to be fully grown and healthy. A lot of them had mild to severe mildew damage. Some of them had mild to severe tip burn. For mildew problem, I am now suspecting that it is happening because of the weekend watering. (Since they are growing under the hydroponics system, these lettuce plants do not need to be watered on their leaves. However, I am assuming that people who are in charge of it in the greenhouse do it anyway. So, I decided to leave a note so that they do not water these hydroponic salad table anymore.) For tip burn problem, it probably comes from calcium deficiency in the nutrient solution. However, not all of the plants show this symptom so it could partially also be genetic problem. Also, I decided not to account any harvest which did not look edible since the main purpose of this project is to identify edible greens which yield enough.

Seventh Week: Observation on growth & notes on early death and mildew damage

Dear readers,

This week, I took some notes on growth on a scale of 0 to 2, early death on a scale of 0 to 1 and mildew damage on a scale of 0 to 1. Seeing some mildew damage (which is unfortunately hard to capture from my phone camera) is little concerning since they are still at the early stage of their growth. I will see how it goes in couple weeks. Other than that, they all look pretty healthy.

Sixth Week: First observation on growth

Dear readers,

Most of them grew enough for me to take some measurement so I did in scale of 0 to 2. (0=weak, 1=moderate, 2=vigorous). Some of them are growing very fast. I also took note of if each root grew enough to reach the nutrient solution in each bin in scale of 0 to 1.