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黑云杉嫩枝扦插育苗技术 总被引：2，自引：0，他引：2
采用悬臂转动式全光自动喷雾插插育苗设备，进行了黑云杉半木质化嫩枝扦插育苗试验。结果，ABT200mg/kg浸根30－50min，生根率达到78．3％，而且根系发育良好，当年生根的扦插苗翌年春季移植，成活率达到了92．5％以上，因此，黑云杉通过嫩枝扦插进行无性繁殖，是解决黑云杉用种困难的一条有效途径。 相似文献
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<正> 扦插繁殖是毛白杨(Populustomentosa Carr.)快速育苗的主要方法之一。毛白杨属扦插难生根的树种,多年来,其扦插育苗技术一直受到各方面的重视,至今北方地区仍在研究解决如何提高毛白杨扦插育苗成活率的问题。以往毛白杨扦插育苗多采用硬枝扦插,通过物理或化学的方法对插穗进行处理,能促进插穗生根和提高扦插成活率,但硬枝扦插每年只进行一次,其繁殖系数尚不高。本试验采用组培1 年生毛白杨萌发出的大量侧枝作插穗,在全光自动喷雾条件下进行带叶嫩枝扦插,收到良好的效果。插穗来源丰富,生根快,育苗周期短,生根成苗率高,一年能进行多次扦插,繁殖系数高。所以我们认为,嫩枝全光雾插是毛白杨扦插快速育苗的一个新途径。 相似文献
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在嫩枝扦插床上加扣拱棚以保湿，再在拱棚外喷洒地下水以控温的嫩枝扦插方法，解决了传统嫩枝扦插中光、温、湿的矛盾，改善插穗的生根和生长条件。通过对重瓣黄刺梅当年生半木质化枝条的扦插试验，结果表明：全光水膜控温湿嫩枝扦插技术与传统的小拱棚搭遮阳网方式的扦插、电子喷雾方式的全光雾插相比，生根率和成活率均有显著提高。 相似文献
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黄刺玫是蔷薇科蔷薇属的落叶灌木,对土壤要求不严,耐干旱和瘠薄,在各地广泛栽植,是北方春末夏初的重要观赏花木。开花时一片金黄且花期较长,适合庭院观赏、丛植、花篱等。但黄刺玫为扦插难生根的树种,采用常规育苗成活率低,育苗周期较长,成本较高。为了加快繁育途径、提高苗圃和育苗专业户的经济效益,进一步提高苗木质量和扦插成活率,笔者采用全光喷雾扦插育苗技术进行嫩梢扦插,不仅有效地解决了黄刺玫难生根问题,缩短了育苗周期,降低了育苗成本,极大地加快了繁育速度,实行了育苗自动化管理。2006～2011年,笔者应用全光喷雾扦插育苗技术成功培育了大量黄刺玫苗木,总结出 相似文献
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几种常用生根剂在扦插育苗中的试验 总被引：2，自引：0，他引：2
为有效提高扦插育苗的成活率，降低育苗成本，探索育苗的实用关键技术，近年来，在苗木生产中采用多种生根促进剂，及不同的浓度对插穗进行处理，全光喷雾扦插，取的了不同的结果。现将试验总结如下： 相似文献
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珍珠梅全光照扦插育苗试验 总被引：2，自引：0，他引：2
在山西省交城县采用全光照自动间歇喷雾装置对野生珍珠梅优良单株进行嫩枝扦插试验。结果表明：在7月份，剪取当年生半木质化嫩枝的梢部和中部，用ABT1号、3号、6号，浓度均为0．01％浸泡1h。在河砂和林土的人工混合基质上扦插，生根效果最佳。 相似文献
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J. C. van Daalen 《Southern Forests》2013,75(1):82-88
Seed from Podocarpus latifolius (Thunb.) R.Br. ex Mirb. was collected at the Saasveld Forestry Research Station and the large seeds were separated from the smaller seeds. The testas of 72% of the seed were cut. Germination percentages were compared. The effect of the following environmental variables on the growth of seedlings was investigated: a. Watering by automatic mist sprayer or by hand; b. shade intensities of 0%, 25%, 50% and 75%. Shoot length was the only parameter that showed the effect of both treatments. The average nitrogen content of the above-ground parts of the plants watered by hand was 85% higher than that of the plants grown under mist spray. The seedlings grown without shade and which were hand watered grew the best. 相似文献
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刺梅嫩枝扦插育苗技术 总被引：2，自引：0，他引：2
使用全日照24h自动化间歇喷雾设备,采用半木质化刺梅嫩枝作插穗带叶扦插生根育苗的方法,具有生根速度快、育苗周期短、一年可生产多批及插穗来源丰富等优点,苗木成活率达97%。 相似文献
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We investigated the influence of cutting water potential (Psicut) on rooting of juvenile hardwood (dormant) and softwood (succulent) stem cuttings of loblolly pine (Pinus taeda L.) propagated under varying substrate water potentials (Psisub) and volumes of mist application. Mist treatment and Psisub contributed to the Psicut of unrooted stem cuttings. When Psisub was held constant across mist treatments, mist treatment contributed strongly to Psicut. Substrate water potential affected rooting percentage when mist treatment was sub-optimal or excessive, otherwise mist treatment had a stronger effect than Psisub on rooting percentage. Cuttings rooted best when subjected to moderate cutting water potentials (-0.5 to -1.2 MPa) during the initial 4 or 5 weeks of the rooting period. Cuttings experiencing either severe water deficit or no water deficit rooted poorly. We conclude that the rooting environment should impose a moderate water stress on loblolly pine stem cuttings to achieve optimum rooting. 相似文献
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R. L. Jinks 《New Forests》1995,10(2):183-195
The effect of propagation environment on the rooting of field collected leafy cuttings of ash (Fraxinus excelsior, sycamore (Acer pseudoplatanus) and sweet chestnut (Castanea sativa) was investigated in two experiments. In the first experiment, rooting of all three species in mist enclosed inside a polythene tent was greater than 50%, while rooting of ash cuttings was reduced from 63% in enclosed mist to only 16% in open mist. Rooting in open mist, enclosed mist, and contact polythene was studied in a second experiment. Sycamore cuttings rooted equally well in the two mist systems with an average rooting of 78%. In contrast cuttings of both ash and sweet chestnut rooted most under the enclosed mist system, at 64 and 46% respectively. Rooting of ash cuttings was again depressed in the open mist system where less than 30% of cuttings rooted. This reduction was related to an increase in the percentage of cuttings which remained alive without rooting, while showing proliferation of callus at the cutting base. The percentage of sweet chestnut cuttings which callused without rooting was also much greater in the open mist system than in enclosed mist or contact polythene. 相似文献
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在全光下应用双长臂旋转扫描喷雾装置进行水曲柳(Fraxinusmandshurica)扦插试验,通过对插穗的母树年龄、伐根萌条的枝条部位、切口形状、ABT生根粉配置浓度等指标的研究,结果显示,从10、15年生树冠上剪取1、2、3年生枝条,40年生树冠上剪取2、3年生枝条,40年生伐根上剪取1年生枝条做插穗,对生根率的影响差异达到了极显著水平,按生根率高低排序:伐根当年萌生枝条84.76%>10年树的1年枝条82.5%>15年生树的1年枝条79.68%>10年生树的2年枝条56.21%>15年生树的2年枝条55.63%>10年生树3年枝条52.46%>15年生树3年枝条50.62%>40年生树冠的2年生枝条48.36%>40年生树冠的3年生枝条45.59%,切口形状、ABT生根粉浓度和浸泡插穗基部时间对生根率的影响差异极显著,插穗以斜切口,ABT生根粉浓度用质量分数为2.0×10-4的溶液,浸泡插穗基部根时间以4 h为最佳组合,平均生根率为84.76%,最高为93.14%,伐根萌生枝条部位对生根率的影响差异不显著。 相似文献
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