Andrographis paniculata (Burm.f.) Nees (AP) is commonly used for the treatment of many infectious diseases and has been ......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

Polyploidy is pursued in plant breeding programs due mainly to its ability to yield larger vegetative or reproductive or......

[目的]利用水稻多倍体自交回复创制优良二倍体育种材料。[方法]同源多倍体自交回复后代中出现二倍体植株，在其分离后代中，通过系统选......

研究材料为黄花菜（ＨｅｍｅｒｏｃａｌｌｉｓｃｉｔｒｉｎａＢａｒ）二倍体“长嘴子花”和同源四倍体“ＨＡＣ－大花长嘴子花”．研究结果表明：黄花菜植株的形态结构既有一般单子叶植物的某些特......