research has been conducted by the USDA to evaluate their potential for plant lighting. Cathey and Campbell (1982) concluded that LPS plus the addition of light from incandescent lamps applied simultaneously generally produced plants of better
research has been conducted by the USDA toevaluate their potential for plant lighting. Catheyand Campbell (1982) concluded that LPS plus theaddition of light from incandescent lamps appliedsimultaneously generally produced plants of better