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研究了外源激素及浓度、插穗部位对三叶木通硬枝扦插生根的影响.结果表明:三叶木通属于皮部生根兼有愈伤组织生根的综合生根类型;在供试的2种外源激素中,以生根粉(ABT1)总体效果好于萘乙酸(NAA),但也明显优于对照;不同浓度的外源激素均能促进插穗生根,以200 mg/L ABT1处理效果最好,2 000 mg/L ABT1次之,200 mg/L NAA最差;插条部位对三叶木通插穗生根能力有较大影响,枝条基部做插穗的生根效果最好,枝条中部次之,枝条上部最差. 相似文献
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海州常山嫩枝扦插育苗试验 总被引:1,自引:0,他引:1
在塑料荫棚中,以海州常山嫩枝为试材,用河沙、蛭石、珍珠岩、沙壤土做基质,用ABT1号、吲哚丁酸、萘乙酸各浓度处理插穗后进行扦插育苗试验。结果表明:ABT1号100mg/kg浓度提高插穗生根率效果最好,生根率达94.4%,比对照提高77.7%;蛭石基质的嫩枝扦插生根率最高,育苗效果最好。 相似文献
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激素对平欧杂种榛硬枝容器扦插生根的影响 总被引:1,自引:0,他引:1
以平欧杂种榛(Corylus heterophylla×Corylus avellana)一年生枝条为试材,研究不同浓度IBA和ABT 1号生根粉单独和复合浸泡处理3h对其容器扦插生根的影响。结果表明:各处理中,以100mg·L~(-1) ABT 1号生根粉效果最好,生根率达77.22%,插穗平均一级侧根数达10.33条,插穗平均根长达8.25cm,最粗根根粗达1.91mm,分别较对照极显著提高了22.19、2.87、2.99、3.55倍。不同浓度IBA处理后,以400mg·L~(-1)处理时生根率最高,达25.00%;IBA与ABT 1号生根粉复合处理后,以100mg·L~(-1) IBA+25mg·L~(-1) ABT处理时生根率最高,达20.00%。由此可见,平欧杂种榛硬枝容器扦插宜采用100mg·L~(-1) ABT 1号生根粉浸泡插穗3h。 相似文献
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为研究ABT-6号生根粉对月季扦插生根的影响,以观赏型大花月季嫩枝为试验材料,以清水为对照,设置5个ABT-6号生根粉浓度,研究了扦插生根特性、根系干鲜质量,结果表明,ABT-6号生根粉能显著提高月季扦插生根率、生根条数、平均根长和根系干鲜质量,且随着生根粉浓度的增加,呈先升高、后降低的趋势,在ABT-6号生根粉浓度为500 mg/L达到最大值,因此,ABT-6号生根粉能在月季扦插中应用,浓度为500 mg/L生根效果最好。 相似文献
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ABT、GGR生根粉和NAA对葡萄插条生根的影响 总被引:5,自引:0,他引:5
用ABT、GGR生根粉和NAA不同浓度处理葡萄插条,比较其对葡萄插条生根的影响.结果表明,上述三种激素均可促进葡萄插条生根,提高生根率,促进根系生长.其中ABT与GGR生根粉促进插条生根的最适浓度均为50~70mg/L;NAA促进生根的最适浓度为30~50mg/L.综合插条素质看,以50mg/LABT生根粉处理的生根效果最好. 相似文献
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生根粉及不同基质对牡丹传统品种扦插的影响 总被引:1,自引:0,他引:1
以菏泽地区定植的29个传统牡丹品种为试材,研究了不同基质、不同浓度的ABT1号生根粉对牡丹扦插生根的影响。结果表明:牡丹属于皮部生根类型,难生根植物;不同基质、不同浓度的ABT1号生根粉对不同牡丹传统品种扦插后的生根率、根数、根长均有不同程度的影响;扦插基质采用珍珠岩纯基质扦插效果较好,ABT1号生根粉500mg/L浸泡插穗30min生根质量较好;不同牡丹传统品种间也存在很大的差异,其中‘玉板白’、‘白玉’、‘蓝田玉’、‘璎珞宝珠’、‘状元红’、‘种生红’、‘十八号’、‘青山贯雪’‘洛阳红’、‘银粉金鳞’等牡丹传统品种较易生根,而‘一品朱衣’、‘姚黄’、‘赵粉’、‘小胡红’、‘盛丹炉’5个牡丹传统品种较难生根。 相似文献
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G. G. Thomas E. H. Wilkinson 《The Journal of Horticultural Science and Biotechnology》2013,88(2):115-123
Black currants are readily propagated from single-bud hardwood cuttings approximately i inch long, with the bud at the top and planted vertically. The best part of the shoot from which to take such cuttings is the lower- mid portion (buds 15-22).Optimum rooting is obtained from cuttings planted in January, February and March after dormancy has broken in the field, but by using 24-hour day-length successful rooting can be extended from October to March. The emergence of flowers in March-planted cuttings slightly reduces rooting.Thirteen commercial varieties have been propagated successfully by this method.Suitable softwood and semi- hardwood cuttings are available when the current season's shoots are 12 nodes or more in length, i.e. normally in late April. When these are planted in a propagation frame with soil heating, good rooting is obtained from April to June provided the subtending leaf is retained during the rooting period.Twenty-four-hour day-length increases the rooting of cuttings planted in July; lack of rooting after July is attributed to early leaf abscission, the initiation of flowers and the onset of dormancy. 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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紫皮石斛组培技术的优化研究 总被引:1,自引:0,他引:1
以紫皮石斛种子和茎段作为外植体,研究芽苗增殖培养、生根培养及组培苗优化条件。结果表明:种子最适宜作为快繁的外植体,种子通过无菌小芽苗、芽苗增殖、壮苗生根的途径再生成完整植株;并探索出适宜的培养基配方:初代诱导培养基为1/2MS+1mg/L BA+0.5mg/L NAA,种子直接萌发长成大量绿色、长势整齐的无菌小芽苗;增殖培养基为MS+2mg/L BA+0.5mg/L NAA+5%马铃薯汁+5%香蕉泥,芽苗增殖倍数高,达到4.6倍,且长势好、芽苗粗壮;生根壮苗培养基为1/2MS+0.5mg/L NAA+10%香蕉泥+0.1%活性炭,生根苗平均根数和根长达到了最佳状态,根系发达,苗高、健壮,叶色浓绿。培养基中适宜的琼脂浓度为6g/L,增殖倍数较高,植株直立,叶片也不弯曲。 相似文献
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以金边虎尾兰、月季与天竺葵为试材,研究不同生长调节剂及其浓度对3种园林植物扦插生根的影响。结果表明:金边虎尾兰叶基段以100mg/L浓度的IBA或NAA扦插效果较好,叶尖段以IBA 100~200mg/L或NAA 200mg/L扦插效果较好,生根率均达到100%;100~200mg/L浓度的IBA与100mg/L浓度的NAA对月季茎插生根效果较好,生根率达75.6%~77.8%;天竺葵茎插各处理的生根率均达到100%,但从平均生根数上比较,100mg/L NAA或25mg/L IBA对其扦插生根效果最佳,25~300mg/L的IAA对其生根数有抑制作用。 相似文献
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不同因子对盆栽八仙花扦插生根的影响 总被引:1,自引:0,他引:1
以1a生八仙花枝条为试材,研究了扦插基质、扦插部位、扦插时期及不同浓度萘乙酸对八仙花扦插生根的影响,以期为八仙花规模化、集约化生产提供科学依据。结果表明:草炭∶珍珠岩为1∶1的基质配比最适宜嫩枝扦插,成活率96.1%;留叶数量为1的插穗最适合半木质化枝条的扦插;半木质化枝条最适宜八仙花扦插,根部发育状况最好;6~7月为最适宜扦插时期,生根率为98.2%~98.6%;150mg/L NAA处理八仙花插穗的生根率最高,达93.3%。 相似文献
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P. J. Wilson 《The Journal of Horticultural Science and Biotechnology》2013,88(6):1009-1017
An additional wound at the base of one-node stem cuttings of Eucalyptus grandis increased rooting. Girdling intact shoots reduced rooting in cuttings harvested from them, while girdling cuttings at setting had little effect, suggesting that the internal phloem was active in basipetal transport in the stem. The vertical distribution of roots in additionally wounded cuttings also suggested a changed pattern of efflux from the internal phloem, as well as an increase in water uptake. In one-leaf cuttings more roots emerged from the leaf trace sector of the stem than from the trace of the absent leaf. In two-leaf cuttings the circumferential distribution of roots was uniform except in cuttings (a) reduced to a half-round cross-section at the base, in which rooting was more profuse at the lower of two sites of root emergence, and (b) from lateral coppice shoots whose stems were red-pigmented above with anthocyanins, in which there was less rooting than expected in the red sector. Stem volume was well related to rooting ability, largely explaining variation due to the original position of the cutting within the shoot and crown. 相似文献