麻竹杂交子代竹笋营养成分变异分析

为研究麻竹(Dendrocalamus latiflorus Munro)杂交子代竹笋营养成分的变异情况,以30个麻竹种内杂交子代家系为材料,对不同家系竹笋营养成分进行了测定分析。结果表明:可溶性总糖含量、淀粉含量、游离氨基酸总量、蛋白质含量在家系间的变异幅度都很大,变异系数依次为23.69%、26.70%、38.26%、15.76%;蛋白质水解氨基酸中必需氨基酸的比例都在30%以上,变异幅度为33.80%～42.97%。根据竹笋可溶性糖、淀粉、游离氨基酸总量、蛋白质及必需氨基酸比例等指标对参试的30个家系进行聚类分析,选出了氨基酸和蛋白质含量较高的2个类群。这2个类群共包括11个家系,其中10个家系是来自JD或HK2个产地麻竹为亲本的杂交子代,说明麻竹竹笋的营养品质主要受遗传的影响,通过合适的亲本选配可以得到营养品质优良的杂种后代。

Variation of Bamboo Shoot Nutrient Components of the Hybrids of Dendrocalamus latiflorus Munro

Bamboo shoot nutrient components of 30 hybrid families of Dendrocalamus latiflorus Munro were tested in order to investigate variation of the descendants.Results showed that there were great variations in the content of water-soluble carbohydrates,starch,free amino acid and protein among different family,the CV of these indexes were 23.69%,26.70%,38.26% and 15.76%,respectively.Proportion of essential amino acid exceeded 30% in all families and fluctuated from 33.80% to 42.97%.All families could be classed i...