Cytological characters of four species in Syncalathium (Asteraceae: Lactuceae), a small genus with six identified specie......

All sexually reproducing eukaryotes have a life cycle consisting of a haploid and a diploid phase,marked by meiosis and ......

目的研究四倍体巴戟天Morinda officinalis How.根的结构与其蒽醌类化合物的关系。方法石蜡切片和荧光显微镜鉴定四倍体巴戟天根的......

选取5个二倍体小麦种为实验材料,利用数码图像显微镜处理系统、气体交换参数测定系统和叶绿素荧光动力学参数测定系统,研究了二倍......