共查询到20条相似文献，搜索用时 250 毫秒
1.
《林业实用技术》2016,(11)
通过正交试验L_9(3~4)研究了激素类型、扦插基质、激素浓度3个因素对1年生富贵榕(Ficus elastica Roxb.‘Schryver-iana’)嫩枝扦插生根的影响。结果表明,不同处理对嫩枝扦插生根有显著影响,各因素对发根数的影响顺序为激素浓度扦插基质激素类型,对最长根长、生根率和根系效果指数的影响顺序是扦插基质激素浓度激素类型,对平均根长的影响大小依次为扦插基质激素类型激素浓度,激素浓度是富贵榕嫩枝扦插生根数的决定因素,扦插基质是其他生根性状调查指标的主导因子。本次扦插最佳组合为3珍珠岩:1泥炭土基质、0.1%根太阳生根剂处理2h,对于富贵榕嫩技扦插的规模化设施育苗有一定的指导作用。 相似文献
2.
以吲哚丁酸IBA和ABT生根粉两种溶液的不同浓度处理及不同土壤基质处理分别对黄花倒水莲(Polygala fallax Hemsl.)扦插生根的影响进行试验研究。结果表明：吲哚丁酸IBA和ABT生根粉两种溶液的不同浓度处理对黄花倒水莲扦插根数、根长、稍长和生根率的影响均达到极显著水平,最佳浓度均为0.1g/L,生根率分别达到95%与90.4%,均极显著高于对照组;田园土+细河沙与黄心土+细河沙两种不同土壤基质处理对黄花倒水莲根数、根长、稍长及生根率的影响均达到极显著水平,效果最好的是黄心土+细河沙处理组,生根率达到91.6%,田园土+细河沙处理组效果次之,生根率为79.4%,均极显著高于对照组。 相似文献
3.
4.
5.
不同生长激素和基质等因素对红叶石楠扦插生根的影响 总被引：3，自引：1，他引：2
采用正交试验的方法研究了扦插基质、生长激素及其质量浓度和插条类型等4种因素3种不同水平处理对红叶石楠插穗生根率的影响.结果表明:影响红叶石楠插穗生根的主导因素是激素种类,其次是插穗类型和扦插基质,激素质量浓度的影响最小;激素IBA处理的插穗生根率极显著(α＝0.01)优于NAA和GRR,绿枝中部和上部插条生根率极显著(α＝0.01)优于下部,扦插在基质A1和A2更易生根.红叶石楠扦插的最佳处理组合为:以混合的珍珠岩、泥炭与砻糠灰(体积比1∶1∶1)为基质,选用绿枝中部插条,在IBA500 mg/L中浸泡2 h,扦插生根率高达98.12%. 相似文献
6.
《林业实用技术》2019,(11)
桤木(Alnus cremastogyne Burk.)是重要的工业原料林和能源树种,同时也是重要的生态防护树种。采用L_(16)(4~4)正交试验设计,以生根率、生根数和根长为扦插生根质量的指标,并构建生根质量指数,评价总的生根质量,研究GGR浓度、扦插基质、插穗类型和处理时间对桤木扦插繁殖生根的影响。结果表明,插穗类型对生根质量指数影响的效果最大,处理时间次之,GGR浓度居第3位,扦插基质影响最小。当插穗类型为带2叶茎段,GGR浓度为100 mg/L,处理时间0.5 h,扦插基质为细河沙:菜园土:泥炭:椰糠=1:1:2:1时,生根质量指数为52.71,桤木无性扦插繁殖的生根质量最好。桤木单株间生根率的变幅为0～100%,单株选择潜力较大。桤木生根率、生根数、平均根长之间存在显著或极显著的正相关关系,进行生根性状选择时可以容易测得的生根率进行选择,其它生根性状也会得到改良。 相似文献
7.
比较不同基质、不同生根促进剂及其质量体积浓度、不同季节、不同修剪方式、不同插穗类
型对钟花樱（Cerasus campanulata）扦插生根的影响,结果表明：扦插基质类型、生根激素种类及其质量
体积浓度、扦插季节、插穗留叶面积以及插穗类型均对钟花樱扦插成活率和生根率产生显著或极显著影
响,扦插基质采用黄心土最有利于生根;生根激素种类及其各浓度处理效果均显著高于清水对照,其中
采用IBA 以质量体积浓度2 500 mg · L-1 速蘸10 s 处理效果最佳;于春季扦插最好;插穗留1 片或半片叶
片成活率及生根率远高于不留叶插穗;采用嫩枝扦插和带踵扦插优于硬枝扦插。因此钟花樱扦插宜在春
季,采用修剪成1 片或半片叶片带踵或嫩枝的插穗,经质量体积浓度2 500 mg · L-1 的 IBA 药液蘸10 s 后
扦插在黄心土上,生根效果最好。 相似文献
8.
钟花樱扦插繁育研究 总被引：1，自引：0，他引：1
比较不同基质、不同生根促进剂及其质量体积浓度、不同季节、不同修剪方式、不同插穗类型对钟花樱(Cerasus campanulata)扦插生根的影响,结果表明:扦插基质类型、生根激素种类及其质量体积浓度、扦插季节、插穗留叶面积以及插穗类型均对钟花樱扦插成活率和生根率产生显著或极显著影响,扦插基质采用黄心土最有利于生根;生根激素种类及其各浓度处理效果均显著高于清水对照,其中采用IBA以质量体积浓度2 500 mg·L~(-1)速蘸10 s处理效果最佳;于春季扦插最好;插穗留1片或半片叶片成活率及生根率远高于不留叶插穗;采用嫩枝扦插和带踵扦插优于硬枝扦插。因此钟花樱扦插宜在春季,采用修剪成1片或半片叶片带踵或嫩枝的插穗,经质量体积浓度2 500 mg·L~(-1)的IBA药液蘸10 s后扦插在黄心土上,生根效果最好。 相似文献
9.
母树年龄、生长调节剂、容器与基质对崖柏嫩枝扦插的影响 总被引：6，自引：0，他引：6
【目的】研究崖柏母树年龄、生长调节剂、扦插容器、扦插基质等对插穗生根率、不定根数量、根长及根系干质量的影响,探讨影响嫩枝扦插的内在因子和外在环境条件,为崖柏嫩枝扦插繁殖及引种驯化提供参考。【方法】按照正交表L9(34)进行正交试验设计。崖柏嫩枝扦插后70天,调查不同处理及水平下的插穗生根率;扦插后260天,增加对不定根数量、根长及根系干质量的调查,并对其进行统计分析。【结果】母树年龄对插穗生根率和根系发育影响较大。母树年龄越小,插穗的生根率越高。一级不定根数量、一级不定根最长根长和根系干质量的变化与生根率随母树年龄变化的规律基本一致;生长调节剂(IBA)对插穗生根率与根系发育也有较大影响。插后70天的插穗生根率及插后260天的一级不定根数量、一级不定根最长根长和根系干质量均是以IBA(2 000 mg·L-1)速蘸2 min处理的最优;扦插容器类型对插穗生根率的影响不显著,但对一级不定根最长根长影响极显著。优劣次序为:黑色软塑料营养杯无纺布育苗袋白色硬塑料营养杯;基质类型对插穗生根率的影响随着扦插后时间的延长逐渐增大,对扦插后70天的插穗生根率影响不显著,对扦插后260天的插穗生根率影响极显著。用草炭土、珍珠岩、蛭石配制的混合基质优于纯草炭土;不同基质对一级不定根最长根长和根系干质量影响显著。【结论】崖柏嫩枝插穗生根率及生根后根系各种指标,不仅受到母树年龄、生长调节剂、扦插容器、扦插基质等因子的单独影响,而且还受各因子的综合作用。随着生根发育阶段的变化,对插穗生根率和根系发育起重要作用的因子也在不断发生变化。对崖柏嫩枝插穗生根率的最佳处理组合为:从3年生母树上采集插穗、用GGR6速蘸处理、无纺布育苗袋、草炭土:珍珠岩:蛭石(1∶2∶1)。对根系发育的最佳处理组合为:从3年生母树上采集插穗、用IBA速蘸处理、黑色软塑料营养杯、草炭土:珍珠岩:蛭石(1∶1∶1),生根率达95%,从根系发育和生根率两方面考虑,该处理组合在崖柏嫩枝扦插实践中具有较高的应用价值。 相似文献
10.
《经济林研究》2014,(3)
为了对黑果枸杞优良种质资源和个体进行无性繁殖,在智能日光温室内,以嫩枝为试材,研究了NAA、ABT、IBA、NAA+IBA不同质量浓度的4种生长调节剂溶液对嫩枝扦插的影响。结果表明:不同质量浓度的4种调节剂溶液对嫩枝扦插成活率、新枝高生长量、根系生长量、生根数影响差异极显著,不同生长调节剂对成苗分枝数的影响差异不显著,不同质量浓度对成苗分枝数的影响差异极显著;4种生长调节剂溶液及对照按照促进嫩枝扦插苗成活率、平均新生枝生长量和新生根生长量的效果由高到低排列依次为NAA、NAA+IBA、ABT、IBA、对照。最佳处理为NAA 300 mg/L,成活率为84%,平均新生枝长12.4 cm,平均新生根长4.5 cm;其次为NAA 400 mg/L,成活率为76%,平均新生枝长10.3 cm,平均新生根长4.2 cm。成活率和新生枝生长量、新生根生长量呈正相关,和新生枝数量、新生根数量呈负相关。扦插苗为混合生根,以皮层生根为主。 相似文献
11.
滨柃扦插繁殖技术试验 总被引：3，自引：0，他引：3
设计了穗条长度、生长调节剂(IBA与NAA按1:1混合)浓度、扦插基质多种处理对滨柃(Eurya emarginata)扦插穗条生根的影响试验,结果表明:不同扦插处理的穗条生根能力存在较大差异,其中以扦插基质V(泥炭):V(蛭石)=2:1,穗条长度3 cm,生长调节剂(IBA与NAA按1:1混合)浓度150、300 mg/L的处理扦插成活率最高,分别达到84.2%和83.4%.穗条长度和生长调节剂浓度对扦插成活率存在显著差异,对穗条生根数和平均根长均不存在显著性差异,穗条长度以短穗(3 cm)穗条成活率最高,达到(63.44±9.65)%;生长调节剂以浓度为150 mg/L的处理扦插成活率最高,达到(67.47±4.96)%;基质对滨柃扦插成活率、穗条生根数和平均根长不存在显著性差异. 相似文献
12.
《林业研究》2017,(2)
Experiments were carried out to define the effects of hormonal concentrations on semi-hard wood(SHW) and hard-wood(HW) branch cuttings of the Z.armatum. SHW and HW cuttings were collected in the month of March. The SHW and HW cuttings were treated with different concentration of indole-3-acetic acid and indole-3-butyric acid(IAA and IBA) and placed in vermiculite rooting medium for 90 days under 1-min misting after 10 min. Sprouting, rooting percentage, sprout number, sprout length, root number, and length were measured.The highest rooting and sprouting rate, 64.0 %, was obtained at the 0.3 % IBA treatment in the SHW cuttings.Similarly sprout length and number of roots per cutting were also higher at the 0.3 % IBA treatment in the SHW cuttings. The number of shoots per cutting was higher at the 0.3 % IAA treatment in the SHW cuttings. Root length per cutting was higher in 0.4 % IBA treatment in the SHW cuttings. The results indicated that 0.3 and 0.4 % IBA treatment produce higher rooting percentages as well as the number of roots and their length in SHW cuttings. The HW cuttings produced maximum rate of 18.0 % rooting in0.5 % IBA treatment. The control set and lower concentrations of IBA and IAA completely failed to root in the mist chamber. 相似文献
13.
Leaf area, IBA concentration and age of stockplants were all found to be important factors for successful rooting for vegetative
propagation using single-node cuttings of the two main African mahogany species: Khaya anthotheca and K. ivorensis. Cuttings with leaf area of 30–50 cm2 had the best rooting percentage and cuttings with about 30 cm2 had the most number of roots per cutting in K. anthotheca. Khaya ivorensis, cuttings with 10–30 cm2 leaf area had the highest rooting percentage. Cuttings collected from 1-year-old stockplants recorded the highest rooting
percentage and largest number of roots per cutting. Cuttings from 3-year-old stockplant of the same seeds sources had the
lowest rooting suggesting aging negatively impacted rooting ability. The effect of auxin concentration, on rootability was
examined with cuttings of K. anthotheca. An IBA concentration of 0.8% was the best exogenous auxin concentration for percentage rooting, number of roots per cutting
and the length of the longest root per cutting. 相似文献
14.
A study to determine the best vegetative propagation protocol was carried out for Dalbergia melanoxylon. Natural regeneration of D. melanoxylon is limited due to poor seed viability and germination. The effects of age of donor plant, indole-3-butyric acid (IBA) treatment
and cutting position on rooting of stem cuttings were investigated. The effect of age of donor plant was significant (P < 0.001) only for percent rooting, position effect was significant for all studied parameters, and IBA treatment at 300 ppm
was insignificant only for percent callusing. Interactive effects of cutting position × age of donor and cutting position × IBA
treatment were significant for percent rooting and root number per cuttings while interactive effect of age × IBA was significant
only for percent rooting. Observed difference in rooting performance could be due to uneven distribution of root promoting
and inhibiting substances with respect to age of donor plant and IBA which intensified root formation. Cuttings from juvenile
donor plant performed better in all rooting parameters than mature donor plant. The highest percentages in rooting were (71.11%)
and (24.42%) for cuttings from juvenile and mature donor plants, respectively. IBA treated cuttings produced higher percentage
rooting, number of roots and root length than untreated cuttings which revealed a strong IBA influence on rooting ability
of stem cuttings in D. melanoxylon. It was concluded that stem cuttings should be taken from juvenile donor plants and basal cutting position should be used
to produce high quality planting stock material for the afforestation and conservation programme of D. melanoxylon. 相似文献
15.
采用不同母株年龄的穗条、不同类型的插条、不同基质配比及不同浓度生根剂进行巨尾桉扦插育苗试验。结果表明:巨尾桉插条随母株年龄增大其生根率和生长量下降;嫩枝扦插生根率高、平均根数多、生长快;用珍珠岩和红土等量均匀混合的基质扦插效果好;用质量分数为50×10-6~200×10-6浓度的IBA浸泡2 h,能较大幅度提高扦插成活率。 相似文献
16.
17.
本文以卡亚(Cnidoscolus aconitifolius)为对象,研究不同基质,不同木质化程度以及植物生长调节剂不同种类、浓度对其扦插生根的影响.研究结果显示:砂基质扦插效果最好,扦插8d后生根,生根率达95.3％,平均生根数为35.2条,平均根长为3.56条;不同木质化程度的穗条扦插效果存在差异,以顶芽(嫩枝)扦插效果最好;添加ABT的处理生根率高于添加IBA、NAA的处理,ABT、IBA、NAA等3个不同激素浓度为2000mg·L-1的处理生根数最多,从成本和配制难易程度来看可选择浓度为500mg·L-1的ABT作为卡亚扦插的最佳适用植物生长调节剂种类和浓度. 相似文献
18.
以刺五加根段材料为试材,在春季进行了扦插试验,设计不同浓度的NAA、IBA单独和二者混合处理,以清水作对照,比较不同激素处理对刺五加根插条扦插生根率、平均根长、平均根数的影响,筛选出最佳处理浓度,以期为刺五加人工栽培提供快捷、有效的种苗繁殖技术。结果表明：不同激素处理组合对插穗的生根率均有明显影响。激素IBA0.125g/L＋NAA0.125g/L混合液浸泡插穗的处理在扦插试验中,生根率、平均根长都高于其他处理,为较适宜的激素处理组合。 相似文献
19.
Catherine Ky-Dembele Jules Bayala Antoine Kalinganire Fatoumata Tata Traoré Bréhima Koné Alain Olivier 《Southern Forests》2016,78(3):193-199
Pterocarpus santalinoides is a multipurpose tree species, native to Africa and South America. However, excessive pruning for fodder is jeopardising its seed production leading to poor regeneration in the Sahel region. Efficient vegetative propagation techniques may overcome this concern. To address this issue, four experiments were conducted to determine the effects of substrate (Experiment 1), cutting type (Experiments 2 and 3), genotype (Experiment 4) and auxins (Experiments 1, 2, and 4) on rooting ability in a non-mist propagating unit in Mali. Among the four tested substrates, no significant differences were found in rooting parameters, including the percentage of rooted cuttings, the number of roots and secondary roots per rooted cutting, and the length of the longest root per rooted cutting. Semi-hardwood cuttings rooted significantly better than softwood cuttings with a higher percentage of rooted cuttings (31.7?±?6.5% vs. 9.2?±?2.7%), greater number of roots (8.2?±?4.8 vs 1.5?±?0.7), greater number of secondary roots (16.7?±?4.2 vs 4.6?±?1.8) and longer root length (17.8?±?12.0?cm vs 2.3?±?1.0?cm) per rooted cutting. In addition, one-node cuttings cut below the second and third nodes, respectively, had the highest rooting success (88% and 90%, respectively) followed by cuttings cut below the fourth node (68%) and the first node (62%). Significant differences in the percentage of rooted cuttings were found among 12 randomly selected genotypes with rooting varying from 2% to 75%.The results also showed that auxin application, especially IBA, had a significant effect on rooting success, the number of roots and secondary roots per rooted cutting. Single-node cuttings, and cuttings of 10?cm length with multiple softwood and semi-hardwood nodes, can be used with or without auxin treatment for successful clonal propagation of P. santalinoides. The results of the present study indicated that P. santalinoides is amenable to clonal propagation using low-cost propagators and sand-based rooting media. 相似文献
20.
不同植物生长调节剂对美人梅硬枝扦插生根的影响 总被引：3，自引：0，他引：3
不同组合和质量浓度植物生长调节剂处理美人梅硬枝插穗试验结果表明：（1）不同植物生长调节剂及质量浓度促根效果不同：NAA、IAA和IBA都表现出低质量浓度促进生根,高质量浓度抑制生根的现象;同时低质量浓度的生长调节剂能使愈伤组织形成提前10～20 d,从而促进提前生根。NAA250 mg/L（浸泡30 min）处理调节生根率最好,其次是IAA500 mg/L（浸泡30 min）的处理,分别达56.67%,54.44%;在对平均单株生根数量上却以IAA500mg/L（浸泡30 min）处理效果最好,平均达11.48条。（2）NAA 250 mg/L不同浸泡时间对美人梅扦插生根效果不同：在供试质量浓度范围内,随着处理时间的增加,生根率、单株平均生根数量均增加,以NAA250 mg/L处理60 min促进生根效果最好,平均生根率达71.11%,平均生根数达10.68条。 相似文献