Application of multivariate analysis on studying relationship between plant morphological structure and ecological environment Comparison of photosynthetic physiological and anatomical features of gene and virus controlled silver-leaf mottling of summer squash Anatomical and nutrient features of plant leaves in Yuanjiang savanna valley A COMPUTERIZED DATABASE INQUIRY SYSTEM OF HARDWOOD FROM SOUTHEAST ASIA STUDY ON PLANTING DENSITY AFFECTING OF THE WOOD PROPERTIES OF MASSON PINE Screening and identification of endophytic fungi with growth promoting effect on Dendrobium officinale