The root length of T1 treatment was the longest in the growth of water spinach. With the increasing proportion of red light, the root growth was inhibited, but the length was still longer than CK
T1 treatment root length is the largest in the hollow vegetable growth, with the increasing proportion of red light, the growth of root is inhibited, but the length is still greater than CK.
T1 treatment had the largest root length. In the growth of water spinach, the root growth was inhibited with the increasing of red light ratio, but the length was still larger than that of CK