矿质元素在保护地栽培促进早竹开花中的影响

Effect of Mineral Components on Promotion of Phyllostachys praecox Flowering in the Mulching Cultivation Stands

采用查阅历史档案、走访竹农和现场勘查相结合的方法,在德清市早竹高产培育现代示范园区选择正常生长、生长势减弱、叶片变小和开花竹子等5种不同花芽分化阶段竹林,同时通过田间挂牌观察确认不同花芽分化期的竹株,测定其不同花芽分化期竹叶、竹鞭营养元素含量的变化来研究竹子开花与营养元素的关系,结果表明:矿质元素对竹子花芽分化的影响分为3类:①促进竹子前期花芽分化元素:Ca、Mg、Cu、P、Zn;②促进竹子后期花芽分化元素:Al、Co、Mn;③与竹子开花无直接关系元素:K、Se、Ni。

Study on relationship between bamboo flowering and mineral components by determining nutrient content in bamboo leaf and rhizome in the mulching cultivation Phyllostachys praecox stands during 5 different flower bud differentiation periods in Deqing, Zhejiang province demonstrated that Ca, Mg, Cu, P, Zn could promote early differentiation period of flower bud, Al, Co, Mn promoted late period, while K, Se and Ni had no relation with flowering.