满江红(Azolla imbricata Nakai)是一种固氮能力强、繁殖快、优质高产的水生绿肥和饲料。为了使满江红在育种、繁种和保种技术上有新的突破,其有性繁殖已引起广泛的注意。我组对满江红孢子果的形态、形成以及接合子的萌发过程和幼苗的营养特性进行了初步的观察、试验,今将结果整理于下:一、孢子果的形态满江红的孢子果有大小之分,以大小孢子果成对着生的为多,也有大孢子果和小孢子果各自成对着生的(图Ⅰ—1、2、3)。大孢子果也称雌孢子果,长卵形,顶端 Azolla imbricata Nakai is a kind of aquatic green manure and feed with strong nitrogen fixation ability, fast propagation, high quality and high yield. In order to make Man Jiang Hong breeding, breeding and seed technology has a new breakthrough, its sexual reproduction has attracted widespread attention. My group had a preliminary observation and experiment on the form and formation of spores of spongy rhizome and the germination process of spores and the nutritional characteristics of seedlings. The results are summarized as follows: , The size of the spores fruit pairs of students as much, but also the megaspores and microspores fruit paired with each other (Figure I-1,2,3). Megaspore fruit, also known as spores, long oval, the top