水稻矮生性属于隐性,多数由一个主基因控制,其遗传一般比较简单。但支配矮生性的主基因有多效性,因而导致性状变异的相互关联。例如我国的矮秆早籼品种,除矮秆外,分蘖力强,节间短,茎壁厚,叶片较宽而挺直,或叶鞘发达,节不外露等。 Rice dwarfism is recessive, mostly controlled by a major gene, and its inheritance is generally relatively simple. However, the dominant genes that govern dwarfism are pleiotropic, leading to the interrelationship of trait variation. For example, China’s dwarf early indica varieties, in addition to dwarf, tillering ability, internode short, thick stems, leaves wide and straight, or developed leaf sheath, the festival is not exposed and so on.