7个雷竹类型(种源)竹笋营养及矿质元素含量分析

Nutrition components and mineral element content in 7 different cultivated types (provenances) of Phyllostachys violascens shoots

雷竹是早竹的变种,是我国传统的优良笋用竹种,作为食物资源已有悠久的栽培历史。在长期的自然演化和人工栽培过程中,产生了若干变异类型。本文对7个不同雷竹栽培类型(种源)进行了引种试验,经过3年的观测,生长良好,现对其竹笋营养进行分析,结果显示,7个雷竹笋中营养成分及矿质元素含量具有一定的差异性。其中,营养成分以细叶乌稍雷竹(弋阳)最高,其次为花竿雷竹、青壳雷竹和安徽早竹;矿质元素含量以玲珑雷竹最高,其机理有待于进一步研究。本文研究结果为进一步筛选优良笋用类型奠定了基础。

Phyllostachys violascens is a traditional and excellent shoot-used bamboo in China,and it is a variety of Ph.praecox.As a food resource,it has a long history of cultivation.There are many cultivation types(provenances)in the long-term natural evolution and artificial cultivation.In this paper,7 types of introduction tests were carried out,after three years'observation,all types grow well.The bamboo shoots of 7 Ph.violascens types were analyzed,and the results showed that the nutrient composition and mineral element content have differences.Among them,Ph.violascens‘Linanensis’(Yiyang)had the highest nutrient content,followed by Ph.violascens‘Viridisulcata’,green-shell Ph.violascens and Ph.violascens‘Anhuiensis’.Mineral element content of Ph.violascens‘Linglong’was the highest,and its mechanism needs further study.The results of this study laid a foundation for further screening of excellent shoot types.