ZHANG Chenguang,ZHAO Deying,YUAN Jicun,et al.Annual Change of Phosphorus Content and Accumulation in Young ‘Fuji’ Apple Tree[J].Northern Horticulture,2017,41(07):35-39.[doi:10.11937/bfyy.201707008]
“富士”苹果幼树磷含量与积累量年周期变化
- Title:
- Annual Change of Phosphorus Content and Accumulation in Young ‘Fuji’ Apple Tree
- Keywords:
- T337 self-rooted rootstock; biomass; P content; P accumulation
- 文献标志码:
- A
- 摘要:
- 以3年生T337自根砧“富士”苹果幼树为试材，在年生长周期内的主要物候期进行整株取样，并将整树解析为根木质部、根韧皮部、侧根、砧木木质部、砧木韧皮部、主干木质部、主干韧皮部、叶片、新梢9部分，分别测定各部位不同时期的生物量和磷（P）含量。结果表明：T337自根砧“富士”苹果幼树不同时期各部位P含量不同，整个生长周期内，木质部P含量较低，韧皮部及生长旺盛的须根、叶片和新梢P含量较高。定植后120～150 d和150～180 d树体干物质积累量较高，分别占总积累量的38.73%和29.81%。树体干物质和P分配量、分配比例均为生长旺盛的叶片、新梢和须根高于其它部位。整个生长周期内，每株苹果幼树P总积累量为1.17 g，定植120 d之前P积累量占35.90%，定植120 d之后占64.10%。每株推荐合理施P量为1.56 g，春季定植前每株基施0.56 g，至定植120 d每株追施1.00 g。
- Abstract:
- Use three-year-old T337 self-rooted rootstock young ‘Fuji’ apple tree as experimental material to analyse the entire tree main phenophase of the growth cycle.The entire tree into root xylem，root phloem，fibrous root，root stock xylem，root stock phloem，scoin xylem，scoin phloem，leaf，new shoots were analyzed.The biomass and P content of each part in different periods were measured.The results showed that in different periods P content in different parts of T337 self-rooted rootstock young ‘Fuji’ apple tree was different.And in the whole growth period，the xylem P content was low，phloem，fibrous root，leaf and shoot P content was higher.Tree dry matter，P allocation amount and proportion of leaf，new shoots and fibrous root were all higher than other parts.In the whole growth period，young apple tree′s total P accumulation amount was 1.17 g per plant，and 120 days before planting accounted for 35.90%，120 days after planting accounted for 64.10%.So recommendations of P fertilizer was 1.56 g per plant，before spring planting applies P fertilizer 0.56 g per plant，and 120 days after planting was 1.00 g per plant.
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备注/Memo
第一作者简介：张晨光（1991-），男，硕士研究生，研究方向为果树生理与栽培技术。E-mail：Zchenguang0105@163.com.责任作者：赵德英（1974-），女，博士，研究员，现主要从事果树栽培与生理等研究工作。E-mail：zhaodeying@caas.cn.基金项目：中国农业科学院科技创新工程资助项目（CAAS-ASTIP）；辽宁省果树产业技术体系栽培技术研究岗位资助项目（LNGSCYTX-13/14-5）；主要果树花果管理关键技术研究与示范资助项目（2015204018）。