本文以金镶玉竹为实验材料,探究三种不同保水、补水措施对其移栽后生理特性的影响.结果表明,金镶玉竹在移栽过后植株会受到水分逆境胁迫,加剧了细胞膜脂过氧化,使光合作用受到影响,但也会启动一定程度的渗透调节起到保护作用.其中竹腔补水措施能够有效缓解移栽损伤造成的金镶玉竹水分失衡,其各项生理指标较其它两种措施表现更好,其结论能为金镶玉竹的园林应用和管理提供有价值的参考.
柑橘潜叶蛾是一种主要危害柑橘类苗木幼年树和成年树的重要害虫,会在柑橘类苗木的嫩梢表皮之下啃食叶肉,形成一条一条银白色弯曲的隧道,在隧道里面还藏有幼虫排出的粪便,形成一条黑线,导致柑橘苗木叶片卷曲硬化甚至脱落,导致叶梢停止生长.介绍柑橘潜叶蛾的形态特征、生物习性及危害性,以及农业防治和化学防治两种防治方法.
The principles of landscape sketch planning and design were summarized,which was mainly meeting the functional requirements,reflecting the regional cultural connotation,creating the artistic conception,combining the raw material with the new material.Combined with the sampling survey and literature survey method,investigation was conducted in Shangteng Village of Shizhong District and Longchang Purun Garden of Neijiang City.The research results were summarized from 3 aspects of landscape planning,landscape planning,functional zoning and plant configuration,and it was thought that the design of landscape sketch lacked connotation,layout was confused and creativity was lacking.The suggestion of landscape sketch planning and design was put forward,which emphasized the embodiment of local humanism and regionalism,people oriented,combine creativity with localism,and combine local conditions and energy saving.
介绍多肉植物的概念与特点以及当今该类植物在室外园林中的实际应用情况,以期更好地了解我国多肉植物的研究现状和开发利用前景,为多肉植物在室外园林中的应用提供帮助.
Based on a survey of the urban green land in Neijiang,it is found there are 144 greenery plants in Neijiang,belonging to 144 families,189 species and 299 categories(including some variants and breeds),on basis of which an analysis is made of the urban green system and the structure of the species of trees in Neijiang.It is suggested that local plants be used to increase city character;and a balance be struck in between points,lines and planes and a reasonable arrangement of arbor species,shrubs and herbaceous plants to enrich seasonal character.
在分析"校企合作、工学结合"对学院、企业、学生的三赢局面的分析及其必要性的基础上,从政策优势和行业优势方面阐述了"校企合作、工学结合"的广泛前景。结合当地情况和学院合作经验论证了"校企合作、工学结合"可行性,并提出了在实施过程中出现的相关问题。
研究了四种不同浓度STS处理的保鲜剂对香石竹切花保鲜的效果,试图找出适于香石竹切花的STS保鲜浓度。结果表明与对照相比所有处理组的保鲜剂均不同程度地改变了香石竹切花瓶插过程中电导率、丙二醛(MDA)的含量,其中处理为800mg/LSTS的瓶插液对其切花的保鲜效果最为明显。
