香蕉是一种重要的果树,在热带地区几乎都有种植和分布.除了有限的自然变异可能性外,已知可食香蕉品种大约有200个栽培种(De Langhe,1969).任何育种项目的进展取决于现存种群中遗传变异程度,因此,研究这些基本种群的变异性是迫切需要的.由于经济上重要的大多数植物性状是数量遗传,并且受环境条件的影响很大,因此,判断所观察到的变异性是遗传的还是由于环境条件引起的是很困难的.适用于生 Bananas are an important fruit tree, with almost all of them planted and distributed in the tropics. There are about 200 cultivars of edible banana, except for a limited number of natural variants (De Langhe, 1969) Progress depends on the degree of genetic variation in existing stocks, and therefore, it is imperative to study the variability of these basic populations.As most of the economically important plant traits are quantitatively inherited and are greatly affected by environmental conditions, It is difficult to observe whether the variability is inherited or due to environmental conditions.