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3 Comments

Go to the profile of Ruchir Agrawal
Ruchir Agrawal 2 months ago

Interesting poster! Great Job!
Is the length of the roots dependent on how deep the tub is? If the tub depth were to be lowered, would that affect the root length and subsequently nutritional density in the leaves?

Go to the profile of Chunli Lei
Chunli Lei 2 months ago

Thank you for your great question!

The roots of hydroponic plants are usually longer than soil-grown plants. Several studies have been conducted to discuss this topic. And researchers believed that the oxygen level and nutrients were the two main reasons that help to stimulate the root growth in a hydroponic system. The essential functions of plant roots are 1) uptake of water and nutrients; 2) storage for manufactured materials; 3) providing physical support for the plant above ground. If root growth was affected, it is reasonable that the nutritional density in the leaves will be subsequently affected. 

I list some related studies below:

Kawasaki, A., Okada, S., Zhang, C., Delhaize, E., Mathesius, U., Richardson, A. E., ... & Ryan, P. R. (2018). A sterile hydroponic system for characterising root exudates from specific root types and whole-root systems of large crop plants. Plant methods14(1), 1-13.

Nicholls, R. (1990). Beginning Hydroponics: Soilless Gardening: a Beginner's Guide to Growing Vegetables, House Plants, Flowers, and Herbs Without Soil. Philadelphia: Running Press.

Thank you! 

Go to the profile of Ruchir Agrawal
Ruchir Agrawal 2 months ago

Hi,

Thanks for your reply! Hydroponics is a really cool topic and it is interesting to see its comparison with traditionally grown fruits vegetables!