Study on tissue culture of Bolbostemma paniculatum The Effect of Plant Growth Substances and Rare-earth Elements on the Yield of Castanea henryi Tissue culture and plant regeneration using mature seeds of two sudangrass strains Effect of Plant Growth Substances on Morphological and Anatomical Structure of Leaf and Photosynthetic Characteristics in Soybean Does Seed Priming Induce Changes in the Levels of Some Endogenous Plant Hormones in Hexaploid Wheat Plants Under Salt Stress? The research progresses of plant growth substances