Effect of Red and Blue LED Light Intensity on Growth and Quality of Lettuce
WANG Zhi-min1，SONG Fei-fei1，XU Zhi-gang2，LIU Xiao-ying2*，YANG Yang2
1Horticulture College of Nanjing Agricultural University，Nanjing 210095，Jiangsu，China|2Agronomy College of Nanjing Agricultural University，Nanjing 210095，Jiangsu，China
Abstract：Growth and quality of lettuce（Lactuca sativa L.）were studied under 3 red and blue LED light intensity，such as 100 μmol?m-2?s-1（RB100），200 μmol?m-2?s-1（RB200）and 300 μmol?m-2?s-1（RB300）．Morphological appearances of seedlings were significantly different between light treatments．Compared with the other 2 treatments，plant height，leaf area，root length and specific leaf area of RB100 treatment were significantly greater，and the contents of soluble protein were richer．However，content of VC under RB300 treatment was the highest，and contents of nitrate acid and chlorophyll were the lowest．These results suggest that RB300 treatment is good for improving lettuce quality，while RB100 treatment is good for promoting lettuce growth．
王志敏，宋非非，徐志刚，刘晓英，杨杨. 不同红蓝LED光照强度对叶用莴苣生长和品质的影响[J]. 中国蔬菜, 2011, 1(16): 44-49.
WANG Zhi-min1，SONG Fei-fei1，XU Zhi-gang2，LIU Xiao-ying2*，YANG Yang2. Effect of Red and Blue LED Light Intensity on Growth and Quality of Lettuce. , 2011, 1(16): 44-49.
