2 . the better way is by the axillary bud to multipropagate variegated hosta cultivars 腋芽增殖扩繁是花叶玉簪品种稳定扩繁的有效手段。
2.
8 . some suggestions were provided for hostas production and some hosta horticultural cultivars were recommended for landscape use 8 .对玉答属植物的生产提出一些建议，并推荐了几个应用于园林绿化的玉瞥园艺品种。
3.
In this paper , two major types , the natural vegetation and crop vegetation in luota are studied . we can gain the different distributive area by remote sensing technology , in accordance with conifer forest , broadleaf forest , thick shrub forest , shrub forest , herbs shrub forest , herbs naked rock and crop vegetation . the valuation of the output of standing trees , water conserbancy , soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388 . 8 hm2 is estimated up to 18 . 36 million yuan per annum . the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest , conifer forest , conifer and broadleaf forest , broadleaf forest , scatteredtree - shrub forest , coppice - shrub forest , herbs shrub forest , econamic crop and cereal crops . the plant resources is valued according to the ornamental and green plant . lumber trees and medical plant . ornamental plant includes hosta plantaginea . lilium brownii van viridulum , spiraea cantomiensis and so on . lumber tuees includes zzzelkova schneideriana , emmenopterys henryi , catalpa fargesii and so on 本文把洛塔现存植被分为自然植被与栽培植被两大类进行研究，通过遥感技术对现存植被按针叶林、阔叶林、密灌、灌丛、草灌、荒草裸岩、农作物植被等类型进行分布面积的统计，在此基础上，以林产品价值、涵养水源价值、保护土壤价值和净化空气价值作为估算的主要参考依据，对已成林的针叶林与阔叶林进行森林生态系统的价值估算，得出面积为1388 . 8hm ~ 2的针叶阔叶林的森林生态价值为1836 . 37万元，参照这一生态价值量，把洛塔植被按常绿落叶林、针叶林、针阔混交林、阔叶林、疏林?灌丛、矮灌丛、荒草灌丛、经济作物和粮食作物，以每hm ~ 2的价值量提出了洛塔植被的综合价值体系。
4.
Hostas , as important landscape plants used for ground cover in the forest , have been planted in europe and america countries for many years . being ornamental value of flowers and foliages , broadly adaptable and shade tolerance , hostas have been broadly applied for landscape use in china in recent years . based on systemically analysis of hosta germ plasm resource , cultivar resource , and the status of multipropagation technology and chimera researches , some investigation and experiments have been done in this article , including tissue culture , chimera characteristics , production and applying status of hostas in china 本文在较为全面、系统地分析玉簪属植物种质资源与品种资源、扩繁技术和嵌合体研究问题的基础上，以几种玉簪属植物和花叶玉簪的主要园艺品种为试材，进行了组织培养快繁的比较试验；并利用植物生理生化与形态解剖学手段，对性状稳定且具有推广价值的花叶玉簪品种h . ‘ sosweet ’进行了嵌合体特性的研究；本文还对玉簪属植物在国内的引种、生产和应用现状进行了调查、分析。
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1 . h . ventricosa and more than three hosta cultivars , were applied in gardens and virescences in hangzhou , but showed worse in hot summer . it resulted in no correctly considering the factors , such as temperature , shading and air humidity during plant designing 浙江人学硕十学位论文7 .玉瞥属植物的应用调查表明，现今杭州也有玉瞥属的紫尊以及3个以上园艺品种应用于园林绿化中，但夏季高温时普遍长势不好，主要原因来白于植物配置过程中没有对温度、遮阴和空气湿度等因子予以正确的考虑。
6.
The process of initial culture showed quite difference in various hostas . h . ventricosa and h . " so sweet " were easier , while h . " frances williams " and h . " gold standard " were difficult . using shoot tip ( peak bud ) as explant was proved the effective method for improving survival ratio when hostas would defoliate or have defoliated in autumn or winter rather than in summer 玉簪属不同种类的组培初代建立存在着一定的差异，如h . ventricosa和h . ‘ sosweet ’较容易建立，而h . ‘ franceswilliams ’和h . ‘ goldstandard ’比较困难；应在冬季玉簪属植物将要落叶或已落叶后取茎尖(顶芽)进行初代建立，最好避开夏季，来提高初代建立的成活率。
