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介绍了桉树采穗圃及无土栽培技术,通过比较传统桉树采穗圃存在的问题和无土栽培技术所具有的优势,提出了桉树采穗圃组建模式优化模型,为桉树采穗圃应用无土栽培技术提供指导,对某些无土栽培技术应用存在的问题进行了分析。 相似文献
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总结了东江林场1998~2000年在桉树无性扦插育苗方面一些成功的技术经验,其中包括桉树采穗圃的营建和管理,以及扦插苗的管理。 相似文献
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福建桉树组培苗嫩梢扦插育苗技术探讨 总被引:1,自引:0,他引:1
黄荣誉 《中南林业调查规划》2007,26(4):19-21
对福建桉树组培苗嫩梢扦插育苗采穗圃的建立与管理、穗条采集、扦插技术、扦插后的苗木管护,以及主要环境因子对扦插效果的影响等技术进行了探讨。 相似文献
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桉树优良无性系工厂化育苗技术 总被引:2,自引:0,他引:2
从桉树优良无性系工厂化育苗的生产流程入手,系统地介绍了桉树优良无性系组培苗的培育和以组培苗营养袋苗为母株,建立采穗圃,培育大量插条用以生产扦插苗的技术。其间以尾巨桉EF7为例,插入组培苗芽增殖培养基选择,促进生根培养基的选择,以及扦插条激素处理选择等的试验方法及过程,以加强桉树优良无性系工厂化育苗技术体系的力度。 相似文献
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湿加松扦插繁殖配套技术 总被引:5,自引:3,他引:2
文章从扦插繁殖基地建设和技术环节两方面来阐述湿加松扦插繁殖配套技术。在基地建设方面,提出分区建设思路,将基地区分为生产区和配套设施两大部分,其中生产区包括采穗圃、扦插圃、炼苗圃,配套设施包括7个部分,并就基地总体布局、各区建设要点和使用设施等作了详细说明。以年产100万株扦插苗的规模为例,对基地的建设投资进行了概算。在技术方面,重点介绍了采穗母株培育技术、采穗圃营建技术、扦插繁殖技术和出圃苗木的管理技术。并对营建湿加松扦插繁殖基地的投资收益与风险作了分析。对新建湿加松扦插繁殖苗圃具有指导意义。 相似文献
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红叶石楠扦插育苗技术 总被引:2,自引:0,他引:2
在查阅有关文献和总结育苗经验的基础上,从苗圃地的选择与规划、采穗圃的营建及管理、扦插技术、苗木移栽及病虫害防治等方面总结了红叶石楠无性扦插育苗技术,为红叶石楠苗木的规模化生产提供参考。 相似文献
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石程远 《内蒙古林业调查设计》2010,33(6):41-44
桉树组培苗以苗繁苗技术具有成苗周期短,利用系数大,成本低,便于生产单位大规模推广使用等特点,而且通过嫩梢扦插育苗,可获得苗木整齐粗壮,量多,遗传增益大,具有极大的生产潜力和经济效益。文章根据实际生产,具体介绍了桉树组培苗以苗繁苗技术及病虫害防治对策,旨在促进育苗技术的推广和进步,为育苗工作者提供参考。 相似文献
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影响桉树插穗生根的几个因素研究 总被引:5,自引:0,他引:5
通过6年的桉树扦插育苗研究,总结出影响插穗生根有6个因素:(1)母株来源,组培苗作母株的插穗比扦插苗作母株的生根状况好;(2)母株年龄,母株在1-3年生时采穗条扦插生根率高;(3)穗龄,桉树穗条上长有3-4对成熟叶时扦插成活率高;(4)穗条留叶面积,在扦插不良季节,桉树扦穗留叶至1/3面积的生根率最高,而地扦插良好季节,桉树插穗留叶至2/3面积生根率最高;(5)扦插季节,桉树扦插最佳季节为每年的11月份至次年的4月份;(6)植物生长调节剂,吲哚丁酸(IBA)作生根激素使用效果比萘乙酸(NAA)好。 相似文献
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针对沙棘种子育苗雌雄株比例较低,扦插育苗成活率不高的问题,开展了4种插穗处理方法和2种育苗方式试验,结果表明:将插穗上剪口用接蜡速蘸全封处理,扦插时提前用GGR6号浸泡插穗基部12h后,搭建拱棚进行育苗效果最好,使插穗萌芽、展叶时间比大田育苗分别早9d和10d;苗木成活率达到86.7%,高生长量达到76.4cm,地径生长量达到0.65cm,比大田育苗分别高13.4%、20.9cm和0.14cm。该育苗技术不仅可显著提高育苗成活率,而且有利于培育良种壮苗。 相似文献
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M. A. Ferreira T. C. Harrington C. C. Gongora‐Canul R. G. Mafia E. A. V. Zauza A. C. Alfenas 《Forest Pathology》2013,43(2):153-164
Ceratocystis wilt, caused by Ceratocystis fimbriata, has become the most important disease in eucalyptus (Eucalyptus spp. and hybrids) plantations in Brazil. To further our understanding of the epidemiology of this disease, we surveyed eucalyptus plantations in the states of Minas Gerais and Bahia that were known to have Ceratocystis wilt or were thought to have been planted with infected rooted cuttings. There was generally higher disease incidence in the Minas Gerais plantations, which were on former Cerrado forest sites and likely had soilborne inoculum prior to planting eucalyptus. In such plantations, disease incidence was not evident before 20 months after planting but slowly increased up to 50% at 74 months. The symptomatic and killed trees were aggregated, perhaps from uneven distribution of inoculum in the soil. Also, the progression of cumulative disease incidence best fit a monomolecular model, which is typical of soilborne diseases (fixed level of initial inoculum with little or no secondary inoculum during the crop rotation). However, plots where some trees had been harvested during the rotation showed very high levels of disease incidence in the sprouts that arose from stumps, suggesting secondary spread of the pathogen on harvesting tools or machinery. Most of the Bahia plantations were on pastureland prior to eucalyptus cultivation, and the pathogen was likely introduced with infected nursery stock. In such plots, symptoms were evident as soon as 7 months after planting, and most of the mortality occurred within 12 months. The diseased trees on former pastureland sites were sometimes aggregated within planting rows, suggesting that bunches of infected nursery stock were planted together within the rows. Care should be taken in planting disease‐free planting material and spreading the pathogen on tools, but on sites with soilborne inoculum, use of resistant clones may be the only management option. 相似文献
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桉树枝瘿姬小蜂对苗圃不同枝树品系袋苗的感虫性测定 总被引:2,自引:0,他引:2
选择目前广东省推广面积较大的12种桉树品系袋苗,进行桉树枝瘿姬小蜂感虫性的选择性测定和强迫性测定.结果表明DH201-2虫瘿数量极显著高于其它桉树品系,广林9、32-29、W5、雷林11、广州1号、184、186、雷林17、U6、石岭1号和邓恩桉桉树品系之间差异未达到显著. 相似文献