Table 1 Correlation coefficients of the as-prepared LED lights related to the ideal light for lettuce.
From: Improving “color rendering” of LED lighting for the growth of lettuce
Spectral interval | LED light | ||||||
|---|---|---|---|---|---|---|---|
SB | BRB | RYB | BW | SR | SRB | NW | |
400–440 nm | 0.859 | 0.844 | 0.919 | 0.914 | 0.000 | 0.858 | 0.903 |
441–480 nm | 0.770 | 0.542 | 0.663 | 0.736 | 0.000 | 0.645 | 0.700 |
481–520 nm | 0.794 | 0.801 | 0.000 | 0.000 | 0.000 | 0.826 | 0.000 |
521–560 nm | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
561–600 nm | 0.000 | 0.888 | 0.949 | 0.472 | 0.000 | 0.842 | 0.000 |
601–640 nm | 0.000 | 0.986 | 0.990 | 0.000 | 0.874 | 0.756 | 0.000 |
641–680 nm | 0.000 | 0.190 | 0.000 | 0.000 | 0.146 | 0.000 | 0.000 |
681–720 nm | 0.000 | 1.000 | 0.961 | 0.999 | 0.899 | 0.864 | 0.996 |
721–760 nm | 0.000 | 0.935 | 0.935 | 0.938 | 0.000 | 0.000 | 0.934 |
761–800 nm | 0.000 | 0.464 | 0.457 | 0.424 | 0.000 | 0.000 | 0.490 |
Average value | 0.242 | 0.665 | 0.587 | 0.448 | 0.192 | 0.479 | 0.402 |
