1.The silica-phellem block and stomate tubercle on 3rd leaf are underdeveloped, the tubercle of stomate block is small and dense in japonica, big and sparse in O.
发现了三叶期第三叶片的硅化-木栓细胞带和气孔器乳突发不完全的现象。
2.Tetraploid plants exhibited sighificant difference in morphology of flowers,pollens,stomates,shape and size of seeds and fruits comparted with the diploidy.