C4鹽生植物的產量、光利用效率和營養品質--馬齒莧在不同光照強度、光周期和日照積分下的室內生長Yield, Light Use Efficiency and Nutritional Quality of C4 Halophyte Portulaca oleracea L. Grown Indoors under Different Light Intensities, Photoperiods and Daily Light Integrals何潔新加坡南洋理工大學教授HE JieProfessor of Nanyang Technological University, Singapore