共查询到19条相似文献,搜索用时 79 毫秒
1.
2.
采用厚环乳牛肝菌,赭丝膜菌,灰环乳牛肝菌和彩色豆马勃4种外生菌根真菌固体纯培养接种物,对日本落叶松进行了圃地育苗接种试验。结果表明,苗高,地径,侧根数分别比较对照提高了13.38%-23.54%、10.65%-24.71%、9.97%、-13.78%,苗木N、P、K含量分别比对照增加了0.70%-19.96%、9.06%-47.81%和14.45%-21.12%,苗木菌根感染率为67.82%-83 相似文献
3.
4.
5.
以尾叶桉和巨尾桉为材料 ,1993和 1994年在广东省开平市镇海林场建立了 2个外生菌根菌接种试验 ,均采用裂区设计 ,4次重复 ,每试验均 2个树种为主区 ,菌根菌处理为副区。试验 1有 8个外生菌根菌处理 ,每处理小区 6株或 9株 ,试验 2有 3个外生菌根菌处理 ,每处理小区 9株。造林后 ,定期观测树高、地径或胸径。试验结果表明 :树种内菌根菌效应分析发现 ,巨尾桉所有指标在菌根菌间存在显著差异 ,尾叶桉只是某些指标在菌根菌间有显著差异 ,表明两树种对相同菌根菌处理的反应不同 ;树种联合方差分析表明 ,试验 1中所有指标在区组间、树种间、菌根菌处理间均有显著差异 ,从方差分量看 ,树种效应 >树种×菌根菌互作效应或菌根菌效应 ;试验 2中树高指标在树种间和菌根菌处理间均存在显著差异 ,而 2 4个月时胸径指标在树种间无显著差异 ,但胸径在菌根菌处理间有极显著差异 ,树高指标的方差分量为树种效应 >树种×菌根菌互作效应或菌根菌效应。胸径的方差分量为菌根菌效应 >树种×菌根菌互作效应 >树种效应。分析表明树种×菌根菌互作效应存在时间上的不稳定性 ;同时 ,讨论了外生菌根菌应用中树种因素的重要性。 相似文献
6.
7.
8.
接种苗木在生长量和生物量上均表现出极其显著的生长优势,ECM真菌蜡蘑菌单接种及其与4种VA菌根菌剂混合接种,对苗木生长的促进作用尤为显著。在接种后16周时,与对照苗相比,蓝桉和尾叶桉接种苗木的高生长量最大增幅分别为28.86%(LS)和86.65%(LG);两种桉树地上部分平均干质量最大增幅分别为129.93%(LS)和133.34%(L),地下部分分别为119.93%(LF)和174.83%(L 相似文献
9.
泡囊丛枝状菌根对南洋杉幼苗的接种效应 总被引:4,自引:1,他引:4
利用泡囊丛枝状菌根(VAM)菌对慢生型树种南洋杉幼苗进行人工接种,1年后的测试结果,接种VAM处理的幼苗其菌根感染率达100%,而对照株仅自然感染10.3%,接种处理幼苗的生长与对照比较,平均高增加36.5%,地径增加16.6%,平均冠幅增加36.7%,枝条数目中56.7%,接种株的生物量与对照比较,地上部分平均干重增加100.52%,地了下部分干重则增加155.76%,表明地表球囊霉9004菌株 相似文献
10.
11.
12.
13.
四川省桉树内生菌根资源菌较丰富,共14种,隶属接合菌亚门内囊霉科的3个属。其中以球囊霉属(Glomus)的近明球囊霉(G.claroideum Schenck and Smith),缩球囊霉(G.constrictum Trappe),地表球囊霉(G.versiforme(Karsren)Berch),摩西球囊霉(G.mosseae),有较广泛的宿主,为优势菌群,小果球囊霉,大果球囊霉,微丛球囊霉为零星出现,感染宿主相对较窄。通过5种桉树固定标准地的调查,我们发现不同桉树树种内生菌化率有显著差异,且内生菌根真菌随林分年龄增加而增多。 相似文献
14.
15.
16.
从 Madhupur 林区的不同地点采集了 Acacia auriculi-formis A. Cunn. ex Benth., A. mangium Wild., Artocarpus het-erophyllus Lamk. C., Dalbergia sissoo Roxb. ex A. P. D., Euca-lyptus camaldulensis Dehnn., Hevea brasiliensis (Wild. ex Juss) Muell. Arg., Swietenia macrophylla King. and Tectona grandis L. 8个树种的根和根际土。采用简单常规的根围土壤真菌孢子分离、形态鉴定和树木细根染色、显微镜观察等方法,进行了孟加拉国Madhupur林区内不同森林树种中丛枝菌根多样性的研究。图2表2参46。 相似文献
17.
P. P. Dhar M. A. U. Mridha 《林业研究》2006,17(3):201-205
Roots and rhizosphere soils of Acacia auriculiformis A. Cunn. ex Benth., A. mangium Wild., Artocarpus heterophyUus Lamk. C., Dalbergia sissoo Roxb. ex A. P. D., Eucalyptus camaldulensis Dehnn., Hevea brasiliensis (Wild. ex Juss) Muell. Arg., Swietenia macrophylla King. and Tectona grandis L. were collected from different locations of Madhupur forest area to study the biodiversity of Arbuscular Mycorrhizal (AM) fungal colonization and spore population. All the plants showed AM colonization. Out of eight selected plants, mycelial colonization was lowest in the roots of A. heterophyllus (22%) and the highest was in the roots of H. brasiliensis (78%). Mycelial intensity was observed poor (25%-77%) and moderate (23%-57%) in all plants species and abundant (11%-40%) was in most of the plant species. Vesicular colonization was observed in five plant species. The lowest was recorded in E. camaldulensis (4%) and the highest was in H. brasiliensis (21%). Poor (24%-56%), moderate (16%-100%) and abundant (11%-40%) type of vesicular intensity were observed. Arbuscular colonization was observed in three plants. The highest was in A. mangium (72%) and the lowest was in S. macrophylla (17%). Arbuscular intensity was recorded as poor (12%-44%), moderate (22%-100%) and abundant (4%-47%). The highest AM fungal spore population was in A. auriculiformis (714) and the lowest was in D. sissoo (102). Five AM fungal genera were recorded. Glomus was found to be dominant. A few spores remained unidentified. Significant correlation was observed between percent coloniza- tion and spore population. The results of the present study indicate the occurrence of AM fungi and the mycotrophism of the plants of Madhupur forest area and the applicability of AM technology in the forest management of Madhupur forest. 相似文献
18.
苏州高速公路绿化滞尘效果初探 总被引:15,自引:1,他引:15
以苏州绕城高速公路为研究对象,研究了苏州高速公路空气中TSP的时间及垂直梯度变化规律,实测了苏州高速公路绿化净化粉尘污染的效果,研究了苏州高速公路绿化常用植物的粉尘净化效果,分析不同植物之间的净化吸收差异,结果表明:单位绿化面积滞尘效果乔木中以广玉兰最好,每周为13.7 g.m-2,是效果较差的深山含笑的2.8倍,灌木中以夹竹桃最强,每周达到11 g.m-2,是滞尘效果较差的紫薇的6.1倍;总体滞尘效果乔木>小乔木、灌木>地被。根据TSP的变化规律与苏州高速公路绿化滞尘现状,提出可以显著提高滞尘效果的绿化设计建议。 相似文献
19.
The effects of the arbuscular mycorrhizal (AM) fungus Glomus mosseae on plant growth, leaf solutes and root absorption area of trifoliate orange (Poncirus trifoliata (L.) Raf.) seedlings were studied in potted culture under water stress conditions. Inoculation with G. mosseae increased plant height, stem diameter, leaf area, shoot dry weight, root dry weight and plant dry weight, when the soil water
content was 20%, 16% and 12%. AM inoculation also promoted the active and total absorption area of root system and absorption
of phosphorus from the rhizosphere, enhanced the content of soluble sugar in leaves and roots, and reduced proline content
in leaves. AM seedings had higher plant water use efficiency and higher drought tolerance than non-AM seedlings. Effects of
G. mosseae inoculation on trifoliate orange seedlings under 20% and 16% soil water content were more significant than under 12% soil
water content. AM infection was severely restrained by 12% soil water content. Thus, effects of AM fungi on plants were probably
positively related to the extent of root colonization by AM fungi. The mechanism of AM fungi in enhancing drought resistance
of host plants ascribed to greater osmotic adjustment and greater absorption area of root system by AM colonization.
__________
Translated from Journal of Plant Physiology and Molecular Biology, 2005, 30(5): 583–588 [译自: 植物生理与分子生物学报, 2005, 30(5): 583–588] 相似文献