FIGURE 2.

APH Growth chamber subsystems: Science Carrier [SC; (A–E)] and Growth Light Assembly [GLA; (F–I)]. The SC is packed with 1–2 mm arcillite (A–C). The planting, germination and cultivation procedures were demonstrated in APH during ground studies (D). The Flight SC was shipped wrapped in a Tedlar bag (E). The GLA illuminates plants with LED lighting of different wavelengths: blue 455 nm (F), green 530 nm (G), red 630 nm (H), far-red 735 nm, and white 4100 K. The GLA can also provide mixed light recipes: red, blue, and white (I).