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为更好地利用冬季时间进行百里香的温室扦插育苗,以百里香当年生枝条为试材,采用3×5两因素完全随机设计,研究了不同浓度的"强力生根粉"溶液对百里香当年生枝条的上段、中段和下段等不同类型插穗的生根数、根长、生根率和株高、成苗率等指标的影响。结果表明:上段插穗的生根数、根长、株高、生根率和成苗率均显著或极显著优于中、下段插穗;"强力生根粉"的不同浓度处理同一类型的插穗后,扦插苗的生根数、根长、生根率和株高、成苗率5项指标均随浓度的升高而先增大,达到最大值后又随浓度的升高而下降;用100mg/L的"强力生根粉"处理百里香枝条上段插穗,扦插苗的生根数为25.38条,平均根长为31.00mm,株高达8.95cm,生根率和成苗率均达100%,在试验所设的15个处理组合中成苗效果最好。 相似文献
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以郁李、金钟花和鸡树条荚蒾的嫩枝为插穗,研究了不同浓度萘乙酸、吲哚乙酸和吲哚丁酸对3种园林绿化树种插穗成活率和生根量的影响.结果表明:不同浓度3种生长激素对3种植物插穗的生根均起到了明显的促进作用,插穗生根率和生根数量都有了明显提高.萘乙酸3 000 mg/L处理金钟花,吲哚乙酸5 000 mg/L、吲哚丁酸1 000 mg/L处理郁李,萘乙酸1 000mg/L、吲哚乙酸3 000 mg/L,吲哚丁酸1 000 mg/L处理鸡树条荚蒾,插穗生根率均达到100％,与对照相比,生根量差异极显著. 相似文献
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激素处理和取穗枝条部位对长春花扦插生根的影响 总被引：1，自引：0，他引：1
以盆栽红色长春花为试材,研究了激素处理和取穗枝条部位对长春花扦插生根的影响.结果表明:用单一激素NAA、IBA、ABT-6进行处理时,以50 m/L ABT-6处理的扦插生根效果较好,生根率达63.70％,平均生根数4.31条,平均根长1.27 cm;50 mg/L ABT-6溶液浸泡9h效果优于其它时间处理,生根率达82.96％,平均生根数6.61条,平均根长2.40 cm；2种激素组合以ABT-6 50 mg/L+NAA 15 mg/L最好,生根率达100％,平均生根数11.76条,平均根长4.68 cm；不同取穗部位插穗的扦插效果,中部＞下部＞上部,中部生根率达100％,平均生根数12.51条,平均根长5.01 cm. 相似文献
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梁文华刘嘉翔金梦然史宝胜 《林业与生态科学》2018,(3):311-316
以法国薰衣草、孟士德薰衣草及蕨叶薰衣草‘西班牙之眼’当年生顶芽为试材,以植物生长调节剂吲哚丁酸(IBA)为生根剂,研究了不同浓度IBA(0mg/L、100mg/L、300mg/L、500mg/L、800mg/L)对其扦插生根及生长的影响,结果表明:用300mg/L的IBA处理法国薰衣草插穗,能快速促进其生根,其生根率、平均根长、根系数量、根系效果指数、株高及叶片数量均达到最大,分别为66.00%、1.87cm、8.33条、0.31、8.37cm、20.00片;同时,孟士德薰衣草的生根率、平均根长、根系数量、根系效果指数、株高及叶片数量也均达到峰值,分别为90.00%、2.00cm、15.33条、0.60、8.67cm、21.00片;用500mg/L的IBA处理蕨叶薰衣草‘西班牙之眼’插穗,可显著提高其生根率、平均根长、根系数量、根系效果指数、株高及叶片数量,且生根及生长效果最佳,分别为93.33%、1.70cm、12.00条、0.41、19.47cm、34.67片;且IBA浓度在100~300mg/L范围内时,孟士德薰衣草生根能力最强,法国薰衣草次之,蕨叶薰衣草‘西班牙之眼’最差,但IBA浓度在300~500mg/L范围内时,蕨叶薰衣草‘西班牙之眼’生根能力最强,孟士德薰衣草次之,法国薰衣草最差。 相似文献
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NAA与日本园试配方营养液对中华常春藤水插的影响 总被引：1，自引：0，他引：1
采用水培法,以中华常春藤为试验材料,研究5mg／L、10mg／L、15mg／L、20mg／LNAA和1倍、1／2倍、1／4倍日本园试配方营养液交叉配比对常春藤插条根和上部形态指标,包括根长、根数、根成活率、新叶数、植株整体生长状况等的影响。结果表明：NAA10mg／L和1／2倍日本园试培养液组合水培,对中华常春藤插条促根效果最为显著,平均根长、平均根数、根成活率、新叶数均为最大值,与对照差异显著,且植株生长快、健壮;NAA对于插条生根的影响,显著大于日本园试配方营养液。 相似文献
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下江忍冬扦插育苗试验 总被引：2，自引：0，他引：2
利用不同浓度的NAA对下江忍冬插穗进行处理,分别于春、夏和秋季进行了扦插试验。结果表明:生根剂处理能显著提高下江忍冬枝条扦插的生根率,3个不同季节的扦插以秋季硬枝扦插生根率最高,用1 500 mg/L的NAA将下江忍冬插穗基部浸30 s,其生根率高达82%,为清水对照的1.8倍。 相似文献
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Several factors contributing to the successful rooting of stem cuttings of four peach clones and one almond × peach hybrid under intermittent mist were tested. With the almond × peach cross, leaf-bud cuttings were also tested.Severe cutting back of adult peach mother trees in winter favoured rooting of the cuttings, but less severe cutting back induced maximum roots per cutting.For short periods vermiculite was found to be a suitable medium. Sand alone or mixed with vermiculite or gravel gave poor results. Gravel alone or mixed with vermiculite was intermediate. For growing the rooted cuttings for a longer period, a mixture of perlite and peat was very suitable.A period of illumination of 3 h starting at midnight with incandescent light improved rooting of peach cuttings in August and October, but not in June.With cuttings obtained from old fruit-bearing peach trees highest rooting rates were obtained in July, but best root development occurred when rooting was carried out in October. In July rooting rate of basal cuttings was much higher than that of terminal ones. Success with leaf-bud cuttings (including a small branch piece) obtained from young mother trees of the almond × peach hybrid was only achieved at the end of May or in June.Dipping the base of peach cuttings in water before rooting was of advantage with one cultivar rooted in September, but of no advantage with another cultivar rooted in June.When the base of stem cuttings was dipped for a prolonged period in IBA solutions of various concentrations, highest rooting rates were obtained with 25–50 ppm IBA for peaches and with 200 ppm for the almond × peach hybrid. The addition of Phygon XL to this solution was of some advantage for peach cuttings. The concentration inducing maximum root development was higher than that required for maximum rooting and callusing. The optimal IBA concentration for rooting of almond × peach leaf-bud cuttings was 100 ppm.Penetration of the IBA into the leaf-bud cuttings reached a maximum 45 min a after floating them on a 100 ppm solution.Transplanting cuttings which had been rooted under mist was somewhat difficult; however, high rates of survival were obtained with cuttings planted in September which had developed a good root system. 相似文献
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In this study we investigated the potential usefulness of different substrates produced from gorse (Ulex europaeus L.) for propagating cuttings of Thuja plicata ‘Atrovirens’. The gorse was composted by different methods, to produce four types of compost. These composts were then used as such (100% compost) or in mixes with coarse sand and pine bark compost (25% compost, 25% coarse sand and 50% pine bark compost, v/v/v) to prepare eight different substrates. The substrates were compared in cutting propagation trials carried out in a greenhouse, with a standard rooting medium consisting of 25% Sphagnum peat moss, 25% coarse sand and 50% pine bark compost (v/v/v). Cuttings were taken from a garden hedge in March 2003, and comprised shoots of the previous year's growth. The bases of the cuttings were treated with a 0.4% solution of IBA rooting hormone, then inserted into cells filled with the corresponding substrate and placed on a propagation bench. Rooting percentage and visual rooting score were determined in July. The quality of roots was evaluated, as total root length and number of root tips, in July, September and November 2003, by use of a Delta-T Scan system. The rooting success of the cuttings ranged from 75% to 90%, except when the substrate comprised the pure composted gorse, obtained after the shorter period in an enclosed composting system with addition of fertilizer and reuse of leachates. Most of the cuttings in this substrate died and only 4% of the cuttings rooted successfully. Physicochemical characteristics of this rooting medium included very high electrical conductivity, low C/N ratio and high water retention. Addition of coarse sand and pine bark compost to the composted gorse significantly increased the rooting success. The root quality variables differed depending on the substrate considered and date of harvest. The results showed that substrates made from gorse compost are of potential use as a peat substitute for propagating cuttings of T. plicata ‘Atrovirens’. The physicochemical properties of the composted gorse should be determined before its use to establish whether it can be used pure as a substrate for rooting or whether it should be mixed with other substances. 相似文献
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Renate Müller Margrethe Serek E. C. Sisler A. Skytt Andersen 《The Journal of Horticultural Science and Biotechnology》2013,88(3):445-452
SummaryThe influence of the ethylene action inhibitors STS and 1-MCP on poststorage performance and subsequent rooting of cuttings was investigated in Epipremnum pinnatum. Unfavourable storage conditions resulted in decreasing poststorage quality of single-eye cuttings, expressed as leaf drop and yellowing. 1-MCP and STS prohibited leaf drop and yellowing in E. pinnatum. STS pretreatment decreased rooting ability significantly, measured as percentage of rooted cuttings, number of roots, total root length and dry weight. STS caused severe injuries to the cuttings, which were worse if the cuttings were stored rather than propagated immediately. There was no significant difference in rooting between 1-MCP treated cuttings and untreated control in either stored or unstored cuttings. The influence of ethylene action inhibitors on rooting and a possible use of 1-MCP for practical use to increase poststorage performance in cuttings are discussed. 相似文献
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试验设5个处理,采用春采和冬储两种采穗方式,用自制高分子.激素水凝胶生根膜和ABT1号生根粉100mg/kg溶液对银杏硬枝插穗进行处理。试验结果表明银杏春采插穗涂自制高分子.激素水凝胶生根膜露地与地膜覆盖扦插育苗生根成活率无显著差异,较冬储插穗浸ABT生根粉100mg/kg溶液露地、地膜覆盖扦插可显著提高插穗生根成活率。 相似文献
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为了探明吲哚丁酸(Indole-3-butyric acid,IBA)对辣椒(Capsicum annuum L.)下胚轴不定根发生的诱导机制,采用IBA浸蘸后扦插的方法,研究了外源IBA处理后辣椒下胚轴不定根发生进程、糖类物质转化与不定根发生相关基因表达情况。结果表明:外源IBA诱导辣椒下胚轴不定根发生具有浓度依存效应,150μmol·L~(-1) IBA处理后不定根发生区段长度、不定根数及平均根长分别是对照的3.47倍、3.28倍和1.91倍;150μmol·L~(-1) IBA上调了不定根启动相关基因Ca ARL1和Ca Cyc B1的表达,下胚轴的不定根原基发生区域明显增加;此外,150μmol·L~(-1) IBA还上调了下胚轴不定根发生区段糖代谢相关基因Ca CWI和Ca STP的表达,可溶性糖、淀粉含量及细胞壁转化酶活性显著提高。结果表明适宜浓度IBA处理可以促进辣椒下胚轴不定根发生区段糖类物质的积累和转化,诱导辣椒下胚轴不定根的发生。 相似文献
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硝酸钙处理对菊花扦插生根及抗氧化酶活性的影响 总被引：2，自引：0，他引：2
以切花菊品种‘万盛’为材料,研究了不同浓度Ca(NO3)2处理对菊花扦插生根及其过程中插穗叶片超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）和抗坏血酸过氧化物酶（APX）活性以及膜质过氧化产物丙二醛（MDA）含量的影响。结果表明,60 mg·L-1 Ca2+处理的生根数最多,而且插穗鲜样质量和干样质量也比对照明显增加,而80 mg·L-1Ca2+处理的生根数、插穗鲜样质量和干样质量以及生根率比对照减少。60 mg·L-1 Ca2+处理的SOD、POD、CAT和APX活性与其它处理相比显著增加,MDA含量明显减少。以上结果表明,在菊花扦插过程中,采用适当浓度的Ca2+处理可以提高插穗叶片SOD、POD、CAT和APX等保护酶的活性和降低MDA含量,从而促进菊花扦插生根,并提高扦插苗品质。 相似文献