前言关于甘蔗遗传参数的研究,Balasundrum(1978)的结果是:有效茎数与单茎重都有高的基因型变异、广义遗传力、遗传进度,蔗茎产量和蔗糖产量的这三个遗传参数仅居中等,茎径、蔗茎含糖份也有较大的遗传进度,但后者的遗传力中等。Mair等(1980)认为:除单茎重、有效茎数外,蔗茎产量、蔗糖产量本身也有高的遗传变异、遗传力、遗传进度。本试验采用有代表性的20个甘蔗品种作材料,试图估算其蔗茎产量、品质、光合器官、农艺性状等的基因型变异系数、广义遗传力、相对遗传进度等。本文只报道蔗茎产 Preface The study on genetic parameters of sugarcane, Balasundrum (1978), results in high genotypic variation in both the number of effective and single stems, and the three genetic parameters of broad heritability, genetic progress, cane yield and sucrose yield Median only, stem diameter, cane sugar content also have a greater genetic progress, but the latter’s heritability moderate. Mair et al. (1980) argue that the yield of cane and the production of sucrose itself have high genetic variation, heritability, and genetic progress, except for the single stalk weight and effective stem number. In this experiment, 20 representative varieties of sugarcane were used as materials to estimate the coefficient of variation, general heritability and relative genetic progress of yield, quality, photosynthetic organs and agronomic traits of cane. This article only reports cane production