突变基因的性状表现受到某些环境因素的影响,遗传的矮生性是易诱发且可以识别的多数突变性状之一。以前的研究结果已表明,水稻矮秆突变体福井71在高温条件下生长,其秆长减低的幅度比原始品种藤实大(Kiano和Fntsuhara 1981)。本试验目的旨在,搞清基因作用和温度对秆伸长影响之间相互作用的形态学基础,从组织学角度来阐明福井71的矮生机制。 The performance of mutant genes is affected by some environmental factors. The inherited dwarfism is one of the most trait-inducing and identifiable traits. Previous studies have shown that rice dwarf mutant Fukui 71 grows under high temperature and has a much shorter stalk length than the original cultivar Fujimoto (Kiano and Fntsuhara 1981). The purpose of this experiment is to clarify the morphological basis of the interaction between gene effect and temperature on the elongation of stems and elucidate the dwarfism mechanism of Fukui 71 from the aspect of histology.