With the current improvement of people's material living standard, the general publics also have higher requirements for living environment and living quality. Landscape can not only effectively improve the reside...With the current improvement of people's material living standard, the general publics also have higher requirements for living environment and living quality. Landscape can not only effectively improve the residents' living happiness, but also promote the improvement of the city's ecological environment. Among them, colored leaf plants are commonly used tree species in landscape design. Relevant designers are required to skillfully use them in order to enrich the landscape color and to better activate the landscape atmosphere. This paper analyzes the characteristics of color-leafed plants and discusses their application skills in landscape design in order to improve the quality and aesthetic feeling of urban landscape design.展开更多
欧洲丁香新品种‘紫伊’是从欧洲丁香品种‘Downfield’天然杂交实生苗中筛选出来的新品种,小花重瓣,花冠裂片浅紫色(RHS,Purple group N77B),幼叶和新梢均呈紫红色(RHS,Purple group N77A),在北京平原地区4月10—12日进入始花期,25日...欧洲丁香新品种‘紫伊’是从欧洲丁香品种‘Downfield’天然杂交实生苗中筛选出来的新品种,小花重瓣,花冠裂片浅紫色(RHS,Purple group N77B),幼叶和新梢均呈紫红色(RHS,Purple group N77A),在北京平原地区4月10—12日进入始花期,25日进入末花期。春色叶能维持40~50 d。该品种具有较高的观赏价值,适应性强,耐干旱贫瘠,抗旱能力强,可在华北及东北大部分地区栽植。展开更多
文摘With the current improvement of people's material living standard, the general publics also have higher requirements for living environment and living quality. Landscape can not only effectively improve the residents' living happiness, but also promote the improvement of the city's ecological environment. Among them, colored leaf plants are commonly used tree species in landscape design. Relevant designers are required to skillfully use them in order to enrich the landscape color and to better activate the landscape atmosphere. This paper analyzes the characteristics of color-leafed plants and discusses their application skills in landscape design in order to improve the quality and aesthetic feeling of urban landscape design.
文摘为探究不同植物生长调节剂对杜鹃叶片生长和花期的影响,以长圆团叶杜鹃(Rhododendron orbiculare)为研究对象,在施用9种植物生长调节剂后的30 d和60 d,采用野外调查法测量叶片的长度、宽度等生长指标,使用英国皇家园艺学会比色卡(royal horticultural society color chart,RHSCC)和色差仪对叶片颜色指标进行测量,定期定点观察初花期。结果表明:胺新脂(DA-7)、复硝酚钠、吲哚丁酸钾、十三烷醇、四甲基戊二酸和6-苄氨基嘌呤(6-BA)可有效扩大成熟叶面积,且所有处理均能显著促进新梢伸长;在施用植物生长调节剂后,成熟叶片的RHSCC值和明度(L^(*))、红绿轴指数(a^(*))、黄蓝轴指数(b^(*))数值整体由偏黄向绿色转变。复硝酚钠综合效果最为突出,在第30天和第60天时的叶片生长速度均最快;在第60天时,成熟叶片长度和宽度分别较对照提高20.4%和19.6%,新梢长度增长125%;复硝酚钠处理组的成熟叶片RHSCC为NN137B,叶色描述为灰橄榄绿,L^(*)为37.07,b^(*)为15.06,为所有试验组中最低,绿色最深,其叶绿素含量最高;此外复硝酚钠表现出最强的促花性,初花期提前达10 d。复硝酚钠兼具叶片快速促生、显著增绿与调控初花期的多重优势,最适宜作为长圆团叶杜鹃叶面生长调节剂。
文摘欧洲丁香新品种‘紫伊’是从欧洲丁香品种‘Downfield’天然杂交实生苗中筛选出来的新品种,小花重瓣,花冠裂片浅紫色(RHS,Purple group N77B),幼叶和新梢均呈紫红色(RHS,Purple group N77A),在北京平原地区4月10—12日进入始花期,25日进入末花期。春色叶能维持40~50 d。该品种具有较高的观赏价值,适应性强,耐干旱贫瘠,抗旱能力强,可在华北及东北大部分地区栽植。
