Anatomical Structure and C4 Photosynthetic Characteristics of Seven Atriplex Species Responses of the functional traits in Cleistogenes squarrosa to nitrogen addition and drought Effect of the amount of C3 or C4 plants in diets on the quality and main chemical components of beef A REVIEW OF ADAPTABLE VARIATIONS AND EVOLUTION OF PHOTOSYNTHETIC CARBON ASSIMILATING PATHWAY IN C3 AND C4 PLANTS A preliminary study on C3 and C4 plants in the Northeast stepps and their ecological distribution Diurnal Changes of Chlorophyll Fluorescence Quenching and the Response to Photooxidation in Leaves of C3 and C4 Plants NEW C4 AND CAM PLANTS Identification of the Photosynthetic Pathways of 30 Plant Species in the Subalpine Meadow of the Qinling Mountains,China Riparian C4 Plants on the Mainstream of the Yellow River:Assemblage Characteristics and Their Indication on the Effects of Reservoirs