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10 March 2012, Volume 41 Issue 01 Previous Issue    Next Issue
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Studies on Arbuscular Mycorrhiza infection to Mangrove Plants in Fujian CAI Bang-ping,DONG Yi-ran,HOU Quan,HUANG Yao-jian 2012, 41(01): 1-6.  DOI: 10.3969/j.issn.1009-7791.2012.01.001 Abstract ( )   PDF (377KB) ( )   To study the symbiosis between arbuscular mycorrhizal fungi (AMF) and mangrove plant species, 102 root and soil samples from 6 plant species were collected in three main mangroves growth zone in Fujian, in May and December of 2010. The main results showed that: (1)AMF infection structures were mostly found in the form of curled and expanded intracellular hyphae, vesicles, which were commonly associated with all the mangrove species we investigated. ‘Arum-type’ arbuscules were found in Parmentiera cerifera, Kandelia obovata, Derris trifoliata and Phragmites australis; (2)AM infection rate was different in mangrove plant species, with Acanthus ilicifolius the highest and Derris trifoliate the lowest; (3) There were significant differences of AM infection rate existing between Parmentiera cerifera and Kandelia obovata, but no difference among three sampling sites; (4) There were also significant differences of AM infection rate in different period in Parmentiera cerifera and Kandelia obovata, but no significant difference in Stenotaphrum helferi in different period. References | Related Articles | Metrics

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Influence of Ribavirin on Cymbidium hybridum Virus Eradication XU Chuan-jun,HUANG Jun-mei,ZENG Bi-yu,ZHANG Wen-hui,XU Wen-jiang 2012, 41(01): 7-9.  DOI: 10.3969/j.issn.1009-7791.2012.01.002 Abstract ( )   PDF (171KB) ( )   The optimum approach for producing the ORSV-free and CyMV-free Cymbidium hybridum by using three virus deprivation methods was discussed in this research, which were ribavirin treatments combining with shoot tips culture or seedlings and shoot tips came from seedlings had been treated by ribavirin for three months. The results showed that the ribavirin added to the medium treat shoot tips for two weeks was not effective against CyMV and ORSV. Shoot tips came from seedling which were treated by ribavirin was the best method, and the method of ribavirin treatment seedling for three months came second. Ribavirin was more effective against CyMV than ORSV in Cymbidium hybridum. References | Related Articles | Metrics

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Analysis on Vegetation Recovery Mode of Mining Wasteland in Northeastern Guangdong YANG Qi-he,LIU De-liang,LI Jiao-qing,TU Chang-qing,LIU Hui-na 2012, 41(01): 10-14.  DOI: 10.3969/j.issn.1009-7791.2012.01.003 Abstract ( )   PDF (270KB) ( )   Vegetation recovery of mining wasteland is based on the premise of improved soil environment, given full consideration to the way in creating the landscape of plants, combined with ecological requirements to build near-natural communities. Through spot studies on natural restoration vegetation of different types of mining wasteland, combined with the similar domestic and foreign researches, the principles for restore these mining wasteland are pointed out in north-east Guangdong province, and some specific repairing methods to restore vegetation are also proposed in this paper. References | Related Articles | Metrics

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Effect of Low NPK Stress on NPK Content in Rubber Seedlings Leaf ZHOU Jun,CHU Jun-qiang,SHI Fa-meng,LIN Wei-fu,CAI Ming-dao,LAI Hua-ying 2012, 41(01): 15-19.  DOI: 10.3969/j.issn.1009-7791.2012.01.004 Abstract ( )   PDF (249KB) ( )   The leaf NPK content of Hevea brasiliensis seedling was studied under low-NPK stress and regular fertilizing with rubber clone GT1, RRIM600, PR107 as material. The results showed as follows. The leaf NPK content of leaf-umbrella, which regenerates after the treatment, was closely related to the component and processing time of low-NPK stress treatment and the symptom of nutrient deficiency would be alleviated or improved by timely and regular fertilizing. The onset time and the degree of decrement and increment were different between the leaf N, P, K content, in which the response of N element was the fastest, P element next and K element the slowest. There were different interactions among elements of N, P and K under low NPK stress. The variational trends of leaf nutrient content under treatment were basically the same of all three clones, but the tolerance and resilience capacity to low NPK stress were different, in which RRIM600 was more sensitive, PR107 next, GT1 was less sensitive. References | Related Articles | Metrics

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Preliminary Research on Isoprene Emissions of Eucalyptus urophylla PENG Hai-yan,ZHENG Huai-zhou,GAO Guan-ping,ZHU Jin-mao 2012, 41(01): 20-25.  DOI: 10.3969/j.issn.1009-7791.2012.01.005 Abstract ( )   PDF (285KB) ( )   Using GC- PID, the isoprene emissions of Eucalyptus urophylla were measured in March. At the same time, the net photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentration of leaves and other correlative environmental factors were measured by LI-6400 portable photosynthesis system. The isoprene emissions of E. urophylla were also studied, after cutting branches. The results showed that the changes of isoprene emissions appeared single peak in the daytime, with the maximum appeared at 14:00 around, and the isoprene emissions decreased after cutting branches. References | Related Articles | Metrics

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Seed Characteristics of Endangered Plant Magnolia sieboldii in Sanqing Mountain of Jiangxi Province XU Wei-hong,GUO Lian-jin,XU Fen-fen,XU Bing 2012, 41(01): 26-30.  DOI: 10.3969/j.issn.1009-7791.2012.01.006 Abstract ( )   PDF (324KB) ( )   Seed characteristics of Magnolia sieboldii in Sanqing Mountain were studied. The results showed that: 1) The seed of M. sieboldii in Sanqing Mountain began to fall early October, and stopped the end of October. The intensity of M. sieboldii seed rain reached a peak in mid-October. The time of M. sieboldii seeds falling in Yujing Peak was shorter than that in Sanqing Temple. 2) The seed production rate of M. sieboldii was affected by the parent canopy, with the upper > middle > lower. And the seed abortion rate of M. sieboldii was higher, between 49.4%～100%. 3) Principal component analysis showed that the tree layer cover, atmospheric humidity, soil moisture and light factor all have a significant impact on the seed development of M. sieboldii in Sanqing Mountain. References | Related Articles | Metrics

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Garden-based Soil Fertility and Ecological Restoration ——A Case of South Hot Springs Park, Chongqing XING Hong-wei,ZHENG Li 2012, 41(01): 31-35.  DOI: 10.3969/j.issn.1009-7791.2012.01.007 Abstract ( )   PDF (458KB) ( )   The soil sampling of Chongqing Southern Hot Springs Park is collected to investigate the soil fertility in the park. According to the dating results, we analyze Southern Hot Springs Park soil fertility quality, compare with the national criterion of landscape soils, and point out the main problems and ecological restoration measures to improve soil, so as to provide reference for landscape construction. References | Related Articles | Metrics

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Induction of Salicylic Acid on Resistance to Pb Stress in Brassica rapa var. chinensis XIA Jin-hua,YE Li-min,YU Xiao-feng 2012, 41(01): 36-38.  DOI: 10.3969/j.issn.1009-7791.2012.01.008 Abstract ( )   PDF (218KB) ( )   The growth of pakchoi was significantly inhibited under the condition of 0.3 mmol/L Pb stress. The treatment 0.1 mmol/L salicylic acid (SA) could significantly alleviated the growth toxicity of pakchoi seedling under the 0.3 mmol/L Pb stress. The effect of SA treatment on the growth of pakchoi under Pb stress showed the ‘low to promote and high to suppress’. The treatment 1.5 mmol/L SA did not alleviate the toxicity but increased toxicity. This may be related to the compound injury formation of high concentrations of SA and Pb. References | Related Articles | Metrics

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Effects of GA3 on the Pollen Germination and Pollen Tube Growth of Michelia figo ZHU Li-ying 2012, 41(01): 39-40.  DOI: 10.3969/j.issn.1009-7791.2012.01.009 Abstract ( )   PDF (177KB) ( )   Effects of different concentrations of GA3 on the pollen germination and pollen tube growth of Michelia figo were studied with pollen in vitro culture method. The results showed that the pollen germination and pollen tube growth of Michelia figo were promoted under 20～200 mg/L GA3. The pollen of Michelia figo in GA3 treatment germinated earlier than CK. The best treatment for promoting pollen germination was GA3 200 mg/L. References | Related Articles | Metrics

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Study on Cold-resistance of Different Eucalyptus dunnii Plus Trees Using Electrical Conductivity GUO Xiang-quan,WU Qi-zhi,HONG Wei,GUO Xiang-dui 2012, 41(01): 41-44.  DOI: 10.3969/j.issn.1009-7791.2012.01.010 Abstract ( )   PDF (244KB) ( )   The electrical conductivity of different Eucalyptus dunnii plus trees was determined at normal temperature and under different low temperature stress, to discuss the relation between the change of electrical conductivity and the individual cold-resistance in different treatments. The results indicated that the electrical conductivity of different individuals existed diurnal fluctuation at normal temperature, which did not contact directly with the individual cold-resistance. The electrical conductivity of different plus trees varied with the differences of cold-resistance under different low temperature stress, the cold-resistance stronger, the low-temperature interval that the electrical conductivity changed gradually more hysteretic, and the range of variation smaller. According to the electrical conductivity in different treatments, the logistic equations and self-lethal temperature of different individuals were respectively gained by regression analysis, to quantitatively assess the cold-resistances of different individual, which would provide the scientific basis for selecting plus trees of the rapid-growth and cold-resistance. References | Related Articles | Metrics

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Processing Method for Decreasing the Nitrate Contents in Vegetables KE Wei-zhong,LIN Guo-wei,WANG Ai-bin 2012, 41(01): 45-47.  DOI: 10.3969/j.issn.1009-7791.2012.01.011 Abstract ( )   PDF (237KB) ( )   The effects of different processing methods including soaking, blanching and salting on the contents of nitrate and vitamin C in vegetables were studied in this research, with pakchoi, radish and kidney bean as test materials. The results showed that soaking and blanching treatment reduced a large amount of nitrate content in vegetables, and the decreasing extent of nitrate content was not obvious in salt treatment, especially, the nitrate content of radish increased after salting. In addition, blanching 0.5 min treatment received the minimal loss of vitamin C content in three treatments. References | Related Articles | Metrics

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In vitro Flowering and Conservation of Dendrobidium strongylanthum Rchb.f. ZHAO Da-ke,LI Chun-fang,CHEN Zhi-ying,YANG Jun-bo 2012, 41(01): 48-50.  DOI: 10.3969/j.issn.1009-7791.2012.01.012 Abstract ( )   PDF (521KB) ( )   The In vitro flowering and conservation of Dendrobidium strongylanthum were conducted, observed and analyzed. The impact of medium and plant hormones on in vitro flowering and the influence of environment (at 12 ℃, HR 60%) on in vitro conservation were also studied. The results showed the induction rate of cluster buds in MS+6-BA 2 mg/L+NAA 0.2 mg/L with 3% Sucrose for 70 d was over 96%. Moreover, the cluster buds could be inoculated in hyponex 1# (C:P:K=7:6:19) 3 g/L+NAA 1 mg/L+AC 0.5 g/L with 2% Sucrose at 12 ℃, HR 60% to make subculture cycle for two years. The success of rapid propagation and In vitro conservation provided technical support for the sustainable utilization of Dendrobidium strongylanthum. References | Related Articles | Metrics

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Study on Tissue Culture and Rapid Propagation of Bud Clumps of Dendrobium nobile WANG Hua,FU Yu-lan 2012, 41(01): 51-54.  DOI: 10.3969/j.issn.1009-7791.2012.01.013 Abstract ( )   PDF (220KB) ( )   The regeneration of bud clumps was adopted to establish a rapid technique system of propagation of Dendrobium nobile in this experiment using the Orthogonal Design. The main contents focused on the following aspects, such as the kinds of the basic culture medium, 6-BA, NAA and KT. Through above research, we tried to find the main influence factors and to build up the superior regeneration system of Dendrobium nobile. The result showed that the main factors of multiplication of bud clumps were the 1/2 MS basic culture medium, 6-BA and KT. The optimum medium was 1/2 MS + 6-BA 1.0 mg/L + NAA 1.0 mg/L + KT 0.5 mg/L + sugar 30.0 g/L + agar 7.0 g/L + coconut juice 150.0 ml/L, pH 5.4. In addition, the much fitter multiplication explants of Dendrobium nobile was 1.5 cm stem-segment with node, with the density of 3 seedlings every bottle. References | Related Articles | Metrics

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Study on Application of Carboxyl Chitosan in Pelargonium spp. cv. citronella Tissue Culture CAO Zhi,CHEN Sheng,LUO Zhi-min,LIN Rong-ming,FAN Hai-bin 2012, 41(01): 55-58.  DOI: 10.3969/j.issn.1009-7791.2012.01.014 Abstract ( )   PDF (219KB) ( )   In the experiment, the effects of carboxyl chitosan on multiplication were studied, using MS medium as basic medium and Pelargonium spp. cv. citronella as material. The main results were as follows: Adding 2 g/L carboxyl chitosan to induction medium, the rate of induction increased. The proliferation rate of plantlet in the medium with 4 g/L carboxyl chitosan was up to 6 fold, and roots developed. References | Related Articles | Metrics

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Study on the Component of Vegetation and Vascular Plant Resources of Mt. Sanqingshan in Jiangxi Province ZANG Min,QIU Xiao-lan,ZHONG Fang-hua 2012, 41(01): 59-63.  DOI: 10.3969/j.issn.1009-7791.2012.01.015 Abstract ( )   PDF (286KB) ( )   The Mt. Sanqingshan is located between Yu and Deixing Mountain. Its area is 229.5 km2. The vascular plant resources of Mt. Sanqingshan were analysed in this paper. Some proposals on the utilization and protection of vascular plant resources in Mt. Sanqingshan were propounded. References | Related Articles | Metrics

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New Distribution Record of Angiosperm in Fujian YANG Cheng-zi,LIU Xiao-fen,HUANG Ze-hao,FAN Shi-ming,SHEN Xian-juan,WU Jin-zhong 2012, 41(01): 64-66.  DOI: 10.3969/j.issn.1009-7791.2012.01.016 Abstract ( )   PDF (214KB) ( )   According to the investigation on the medicinal plant resource in Fujian Province, 2 newly recorded genus, Hylotelephium, Discocleidion and 5 newly recorded species Chimonanthus Zhejiangensis, Chimonanthus salicifolius, Hylotelephium mingjinianum, Kadsura oblongifolia, and Discocleidion rufescens of Angiosperm were found. The voucher specimens are deposited in the Herbarium of FJTCM. References | Related Articles | Metrics

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Introduction of Passiflora coccinea and its Horticultural Applications CHEN Heng-bin,LIN Guo-rui 2012, 41(01): 67-67.  DOI: 10.3969/j.issn.1009-7791.2012.01.017 Abstract ( )   PDF (207KB) ( )   Related Articles | Metrics

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Single Nucleotide Polymorphism and Its Application in Rice XIE Yuan,TIAN Yun,LU Xiang-yang, 2012, 41(01): 68-72.  DOI: 10.3969/j.issn.1009-7791.2012.01.018 Abstract ( )   PDF (231KB) ( )   Single nucleotide polymorphism mainly refers to the DNA sequence polymorphism caused by single nucleotide variation. This review introduced the detection methods of SNP, also its research progress and application in rice. References | Related Articles | Metrics

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A Review of Research Progress on Tissue Culture of Primula YOU Xiao-hui,MA Yu-lei,LI Xiao-yuan,PAN Hui-tang, 2012, 41(01): 73-78.  DOI: 10.3969/j.issn.1009-7791.2012.01.019 Abstract ( )   PDF (249KB) ( )   Research situation in tissue culture technique of Primula at home and abroad were summarized in this paper. Various factors such as explants types, basic medium, plant growth regulators, transplanting test-tube plantlet were emphatically analyzed, and key emphasis in work in future were also suggested as well. References | Related Articles | Metrics

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The Cultivation and Utilization of Calanthe discolor Lindl. LIN Bing,HUANG Min-ling 2012, 41(01): 79-82.  DOI: 10.3969/j.issn.1009-7791.2012.01.020 Abstract ( )   PDF (254KB) ( )   Calanthe discolor Lindl. is a kind of resource to develop which has high ornamental value. There are abundant wild resource in China. Based on the previous research, the distribution and research survey of Calanthe were emphatically introduced, and the introduction and cultivation and propagation technique were also briefly discussed in this article. In addition, some suggestions about rational utilization in the future and research direction of Calanthe were put forward. References | Related Articles | Metrics