WATER CUTTING OF CHINESE ROSE-BETTY PRIOR

BettyPriorinrosegenus,rosebolyis-onevarietyofFlonbondaROse.ItisoneOfmodernChineserose,withcoldresistanceandagmnstpestcharactenshcsChineserosecuttase1soutOfquestionintemPeratezoneandtothe6outhoftethperat6zone,butthereexistmanyqueshonsinHarbnareawhichbelongstonortherntemperat6zonebecauseofshortergrOwingseasonandlowerairtemperatUreinautUmnandwintertmaincuttageseasonsof8ettyPnor).Theexpen-mentonwatercuthngPropagahonofBettyPnorwasconductedlnordertointroducethesspeciesintoHarbin.MThan^LSAun…     

月季的栽培及养护管理

月季别名月月红,花朵颜色艳丽,香味浓郁,深受大家的喜爱,在市场上占据重要的地位。近年来,我国对其进行不断的探索研究,取得进一步的认识。主要针对月季的繁殖方法、栽培管理及养护等几方面进行分析讲解。     

黑丝羽乌骨鸡的选育进展与冠型效应

通过对黑丝羽乌骨鸡的复冠父系和单冠母系进行家系选育五个世代，在体重、孵化性能、开产性状及产蛋量方面得到了明显进展，而且可见单冠在这些性状上的正向效应。尤其是产蛋性能上的选育进展非常明显，高峰4个月的总产蛋量增加了1．2倍，母系300d产蛋量达到102枚左右，母系500d产蛋量达到201枚。     

金樱子果生长发育期维生素C等物质变化研究

对金樱子果生长发育期维生素C等物质进行分析测定,结果表明,其维生素C及可溶性糖含量均于10月中旬达到高峰,是适宜的采收期;长果型金樱子的VC含量及可食部分比例均为最高,属优良类型;随着果实成熟度增加,其呼吸强度及酶活性逐步下降,表明其生理代谢发生由强而弱的变化,根据上述结果,对开发利用金樱子提出了若干建议。     

Variation for plant characters and for performance of softwood cuttings of Rosa canina ‘Inermis’ seedlings

Summary Thirty, one-season-old Rosa canina Inermis seedlings (8–12 mm in diameter) were grown in the greenhouse. After 5 months, single-node softwood cuttings were made of each plant. Analysis of variance demonstrated marked differences between the internode length, number of leaflets per leaf and the leaf area of the original seedling, and between the time of axillary bud-break, axillary sprout length and weight of adventitious roots of their 23-day-old cuttings. Clonal root weight of cuttings was highly significantly correlated with: number of leaflets per leaf (r=–0.65), leaf area (r=+0.65), and days to axillary bud-break (r=+0.62). The origin of heterogeneity among Inermis seedling rootstocks, its probable effect on the flower production of cut roses and its possible use in the selection for clonal rootstocks are discussed.     

A comparison of the somaclonal variation level of Rosa hybrida L. cv Meirutral plants regenerated from callus or direct induction from different vegetative and embryonic tissues

Summary Flowering plants of Rosa hybrida L. cv Meirutral have been obtained either from direct regeneration of adventitious shoots on leaf and root fragments, or through organogenesis and somatic embryogenesis on calli derived from anther, ovule, petal, sepal, receptacle, leaf, stem internode, root and zygotic embryo tissues. The calli derived from floral parts exhibited rhizogenesis. In this case direct induction of adventitious shoots from selected roots had to be performed in order to generate plants. A histological study of the morphogenetic calli was carried out. The plants regenerated directly and those regenerated from calli of leaf, stem internode, root and zygotic embryo tissues, together with reference plants propagated by cuttings, were compared on a phenotypic basis by taking into account petal number, form and colour, and plant growth habit. From these observations, it can be concluded that directly regenerated plants are as stable as reference plants while plants regenerated from callus are unstable, especially those derived from zygotic embryo tissues.Abbreviations BAP 6-benzylaminopurine - 2,4-D 2,4-Dichlorophenoxyacetic acid - GA3 gibberellic acid - IAA 3-indole-acetic acid - MS Murashige and Skoog - NAA 1-naphthalene acetic acid     

上海地区危害月季的豆毒蛾生物学特性及防治初步研究

研究了上海地区危害月季的豆毒蛾的生活史和生活习性.室内条件下该虫一年发生2～3代,以幼虫越冬.幼虫期总食叶量6789.35mm2,总取食量11张.室温在24℃时,完成一世代需要67.42d.其中卵期6d,幼虫期47.5d,预蛹期为1d,蛹期为9.25d和成虫(产卵前期)3.67d.雌雄成虫性比为1∶1.29.室内卵平均孵化率为89.5%.越冬幼虫过冷却点-5.25至-6.78℃,结冰温度为-3.57至-4.65℃.通过室内药剂防治实验,得出6种药剂之中的4种药剂效果较好.     

四种藤本月季耐盐性的比较

对4个藤本月季品种“西方大帝”、“莫扎特”、“夏令营”、“欢藤”进行了盐胁迫下(NaCl∶Na2SO4=4∶1)形态和生理响应研究.结果表明:盐胁迫对“西方大帝”的株高影响最大,其次为“欢腾”和“莫扎特”,而“夏令营”最小.盐胁迫下,“西方大帝”和“莫扎特”的叶面积下降幅度最大,“夏令营”最小,其中“莫扎特”在盐浓度2‰时,叶面积比对照下降了51.94%.“西方大帝”在盐胁迫处理下,叶片相对含水量显著小于对照,且在4个品种中下降最为明显.在各盐浓度胁迫条件下,4个品种的脯氨酸含量均呈增加趋势,其中“莫扎特”和“西方大帝”随胁迫浓度的增加而显著增加(P<0.05),“夏令营”与“欢腾”在4‰和6‰盐浓度下较2‰盐浓度和对照显著增加(P<0.05).可见,4个品种中,“莫扎特”和“西方大帝”的耐盐性较差,而“夏令营”和“欢腾”的耐盐性较好;且在盐浓度≤2‰的条件下,4个藤本月季品种均对盐胁迫具备一定的缓冲、调节和适应的能力.     

浅谈“猛虎嗅蔷薇”与农业观光园规划设计

"猛虎嗅蔷薇"就是强调对比与调和的关系,已在农业观光园中得到了广泛的运用。以余杭苦竹现代科技园区为例,从形式与内容、局部与整体、材料与质地、色彩、风格等方面入手,对"猛虎嗅蔷薇"在农业观光园规划设计中的应用做了详细的分析。结果表明,"猛虎嗅蔷薇"对农业观光园景观特色的表现有重要作用。     

旱生花卉鹅掌柴·月季不定根水培诱导试验

[目的]探索旱生花卉不定根的诱导方法。[方法]以1年生鹅掌柴、月季枝条为材料,以植株生根率、生长状况为指标,以清水为对照,利用植物普遍存在的生态适应性,采用先进的人工环境模拟控制技术,进行水培试验,探讨不同浓度的4种植物生长调节剂对旱生花卉不定根诱导的影响。[结果]各生长调节剂对插穗不定根的诱导均具有促进作用,其中生根灵对鹅掌柴效果较为显著,生根率比对照组和IBA、NAA各浓度激素处理的插穗高30%。而且价格比IBA、NAA便宜,从生产角度上来看,生根灵为首选;5mg/LIBA、NAA和10mg/LIBA对月季的促进作用高于其他激素浓度处理,生根率比对照高出30%。[结论]水培诱导旱生花卉不定根比土培具有明显优势。花卉水培不定根的诱导时间是影响插穗成活和生根的关键因素。