萱草新品种适宜性评价+文献综述
时间:2018-12-01 22:01 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：萱草具有花色丰富、适应性极强、栽培容易、养护简单而且观赏价值高等特点。考虑到目前国内的萱草应用发展不够快不够好，推广也比较缓慢，国外引入成本昂贵，因此本实验依据系统性、科学性、匹配性、关联性、可操作性及可靠性的原则，从萱草的花色、花形、花期乃至花茎、叶形和株型等指标出发，评鉴筛选出优良并适合各种用途的萱草品种，以期为国内的园林萱草应用发展提供参考依据。本文主要从以下4个点出发：第一，针对上海应用技术学院试验田中的36种不知名的杂交萱草品种进行观测，制定表格设立以下评价指标：叶色、叶宽、叶长、叶型、分蘖数、花芽数、花茎数、花茎高度、花茎立度、花期、花色、花径、花显度；第二，对选定指标制作评分标准，计算所有萱草品种的综合得分；第三，筛选出评分前五的5种萱草品种，确定一种为最优秀；第四，根据园林配置分析筛选出适合丛植的萱草品种5种、适合群植的萱草品种5种和适合孤植的萱草品种5种。30867 毕业论文关键词：萱草；品种；适宜性；评价；园林应用 An Assessment on the Adaptability of New Species Hemerocallis [Abstract] Hemerocallis are characterized by rich design and color, strong adaptability, easy cultivation, simple maintenance and high ornamental value. Considering the current development and spread of domestic Hemerocallis are not good and fast enough, and the cost of import is expensive, this experiment sets several index, such as flower color, flower shape, flowering time, stem, leaf shape and plant type. On the basis of the principles of system, science, matching, relevance, maneuverability and reliability, this paper focuses on the assessment and selection of good Hemerocallis, which adapt for a variety of purposes, in order to provide a reference for the application and development of domestic garden Hemerocallis. This paper is mainly from following four points: first, to observe 36 kinds of unknown crossbred Hemerocallis in the experimental field of the Shanghai Institute of Technology and make table forms on 13 index; second, to make assessment standards on selected index and calculate the comprehensive scores of all Hemerocallis species; third, to selected the top five species of Hemerocallis according to the scores and confirm one as the best; and fourth, to selected 5 suitable Hemerocallis species for clump planting, 5 for group planting and 5 for isolated planting. [Key Words] Hemerocallis, species, adaptability, assessment, gardening application 目录 1引言 4 1.1.萱草基本概况 4 1.1.1萱草的形态特征 4 1.1.2萱草的生物特性 5 1.1.3萱草品种的分类 5 1.1.4萱草繁殖管理 5 1.1.5萱草栽培管理 6 1.1.6萱草常见病虫害 6 1.2国内外萱草育种发展 7 1.2.1国外萱草育种历史 7 1.2.2国内萱草育种简介 7 1.3品鉴研究目的、意义 7 2萱草新品种适宜性评价 7 2.1观测性状与方法 8 2.1.1叶 8 2.1.2花葶 8 2.1.3花 8 2.1.4花期 8 2.1.5分蘖 8 2.2试验材料概况 9 2.3萱草适宜性评价标准 13 2.4筛选结果 13 3结果与分析 14 3.1综合得分分析 14 3.2园林配置分析 15 3.2.1丛植 15 3.2.2群植 16 3.2.3聚植 16 3.2.4孤植 16 (责任编辑：qin) |