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10 March 2007, Volume 36 Issue 01 Previous Issue    Next Issue

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Effects of Different Altitudes on Pigment Content, Water Content and Specific Leaf Area of Heptacodium miconioides WEI Fu-min, ZHANG Xiao-yan, LIU Peng, CHEN Zi-lin, CHEN Guo-biao 2007, 36(01): 1-4.  Abstract ( )   PDF (256KB) ( )   By comparing the changes of pigment content, specific leaf area and water content of seven-son flower (Heptacodium miconioides) leaves at different altitudes (A1:550~660 m, A2:700~800 m, A3:900~990 m, A4:1 000~1 015 m, A5:1 020~1 100 m) in Dapanshan Mountain, the effects of different altitudes on seven-son flower were studied.The results showed that the contents of chlorophyll a, chlorophyll b and chlorophyll a+b of seven-son flower leaves increased firstly and then decreased and their peak appeared at A3, but the diversification trend of content chlorophyll a/b and carotenoid of seven-son flower leaves were reverse, decreased firstly and then increased and their bottom appeared at was in A3.Specific leaf area and water content of seven-son flower leaves decreased significantly at high altitudes (A4 and A5).Seven-son flower may be adapted to environmental factors at higher altitudes by the transformation of pigment content, specific leaf area and water content of leaves. Related Articles | Metrics

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Flora and Life-form Analysis of Wild Vines in Dabie Mountain, Anhui Province LIU Zhi-guo, CAI Yong-li 2007, 36(01): 5-9.  Abstract ( )   PDF (278KB) ( )   There are 175 species of wild vines belonging to 67 genera in 30 families in Dabie Mountain, Anhui Province.The biggest group is dicotyledonous wild vines.The small families and genera and single families and genera have a larger quantity than the big ones.The geological characteristics of the wild vines show that Pantropic are dominant, accounted for 22.4% of all wild vines, followed by the North Temperate (22.4%), East Asia (19.4%) and Asia&North America dijuncted (13.4%).The phanerophyte lianes, the geocrytophyte vines, the hemicrytophyte vines, the therophyte vine and the chamaephyte vine occupies 60.6%, 25.1%, 7.4%, 4.6% and 2.3% of the total. Related Articles | Metrics

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Study on the Varieties Selecting and Configuring for Orange Juice Processing in the Three Gorge Area HE Shao-lan, DENG Lie, JIANG Dong, XIE Rang-jin, OU Ying-gang, YU De-quan, CHEN Zhu-sheng, TAN Zhi-you, WANG Hua 2007, 36(01): 10-12,16.  Abstract ( )   PDF (187KB) ( )   In order to meet the orange juice processing for extending the processing season in the Three Gorge area, some sweet orange varieties or selections with different maturing time, higher soluble solid and lower acidity were screened from local varieties and varieties introduced from abroad.It was proved, by the study on the quality and maturity of orange varieties in the Three Gorge area, that the varieties configuring of the very early sweet orange ‘Early-Gold’, the early Valencia orange ‘Midknight’ and the late Valencia orange ‘Olinda’ with the Jingcheng orange and the late Jingcheng colected from local varieties, can harvest from November to June in Three Gorge area so that the orange juice processing period can be extended from 3-4 months now to 8 months, it will basically match to the demand of processing factories.Some sweet orange varieties with higher soluble solid and lower acidity, such as Changye orange and Yiyuan No.3, and some acidless varieties such as ‘Early Gold’ and ‘Egypt Sugar orange’, etc.can be used for reducing the orange juice acidity and greatly improving the juice quality in this region. Related Articles | Metrics

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A New Pest Xylosandrus compactus in Landscape Plants WU Yue-kai, YU Jin-yong, LI Xiao-hong, CHENG Shao-chuan, ZHU Xiu-e 2007, 36(01): 13-16.  Abstract ( )   PDF (2398KB) ( )   This paper reported a new pest on various ornamental plants including Dove tree (Davidia involucrate) and Magnolias, which resulted in the death of the branches and twigs.It was identified as Xylosandrus compactus, a synonym of Xyleborus morstatti and Xyleborus compactus.In this paper, the damage characteristics, morphological and biological features of the pest were described in detail, and the management strategies and other relevant issues were also discussed. Related Articles | Metrics

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Influence of Plant Growth Regulator on Multiplication and Differentiation of Anoectochilus roxburghii Protocorm ZHOU Wei-xiang, GONG Ning, LI Guang, ZHENG Ji-jun 2007, 36(01): 17-19.  Abstract ( )   PDF (216KB) ( )   Effects of 6-BA, NAA and KT on multiplication and differentiation of Anoectochilus roxburghii protocorm were studied by the way of L16(43) orthogonal design.The actions of 6-BA were extremely remarkable while NAA and KT were less effective.The best multiplication culture medium was improved KC+6-BA 2.0 mg/L+NAA 1.5 mg/L+KT 0.2 mg/L, the best differentiation culture medium was improved KC+6-BA 1.0 mg/L+NAA 0.5 mg/L. Related Articles | Metrics

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Study on the Afforestation Density and Fertilizer Application of Man-made Fokienia hodginsii HUANG Sheng-ji 2007, 36(01): 20-23,26.  Abstract ( )   PDF (282KB) ( )   The experiment of fertilizer and afforestation density of young plantation Fokienia hodginsii was carried in 1998.The results showed that Fokienia hodginsii was sensitive to fertilizer and the fertilizer effect sustained for a long time.Phosphate fertilizer should be mainly applied for Fokienia hodginsii and the ideal fertilizer amount is 200 g/tree of calcium magnesium phosphate fertilizer and the fertilizer effect would be better in combination with N fertilizer.The fertilizer formulation of urea 100 g, calcium magnesium phosphate fertilizer 200 g and potassium chloride 50 g for each tree brought an increase of 44.6% in height growth, 42.3% in diameter, 182.99% in volume of timber, and the index of fertilizer effect reached 2.93 and the economic results reached 64 631 yuan/hm2.The treatment of urea 50g/tree and Ca、Mg and P 200 g/tree gained the economic effects of 57300 yuan/hm2.The results also indicated that the best afforestation density was 2.0 m×1.5 m in spacing to the Fokienia hodginsii young plantation. Related Articles | Metrics

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Study on Ultrasonic Extraction of Total Saponin from Hylocereus undatus WANG Hong-lei, PENG Yong-hong, ZHANG Xue-lian, WANG Fang, ZHAO Jin-lian 2007, 36(01): 24-26.  Abstract ( )   PDF (155KB) ( )   Orthogonal design was used to choose extraction process so as to ensure the reasonable and reliable extracting condition of total saponin.The result showed that the optimum condition for extraction by ultrasonic method was as follows.Granularity was 80 item, adaptive solvent was H2O, extraction time was 40 minutes, ratio of solid to liquid was 1:20, and drying temperature was 80℃. Related Articles | Metrics

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The Effects of P, K and Ca Applied by Foliar Nutrients on the Quality and Pigmentation of Sanyuehong Litchi Fruits ZHOU Kai-bing, LIANG Zhu, HUANG Hai-lin 2007, 36(01): 27-30,35.  Abstract ( )   PDF (302KB) ( )   It was conducted with Sanyuehong litchi fruits to study the effects of P, K and Ca applied by foliar nutrients sprayed the concentration 0.2% of solution of KH2PO4(PK), CaCl2(Ca) and the mixture of the both (PK+Ca) on the quality and pigmentation of fruits.The results are as follows.Spraying different liquor could increase the weight of single fruit.The total of soluble sugar (TSS) in flesh of all treatments had the similar changes to each other among all the treatments and CK.The total of soluble sugar in flesh of PK treatment showed significantly higher than that of CK, and those of the other treatments were extremely remarkably lower than that of CK.The total acid (TA) in flesh of all treatments dropped down during early period, then they increased, and then they went downhill again.The TA in flesh of ripened fruits of CK was at the lowest point, and that of the treatment PK was significantly different from that of CK, and those of the other two treatments were extremely different from that of CK.The ratio of TSS/TA of the treatment PK had non-significant difference from CK, and those of the other treatments were remarkably lower than that of CK.To all treatments and CK, the dominant tendencies of the contents of the chlorophyll and carotenoid in carpel were down, and that of the anthocyanidin was up.The curves of the contents of carotenoid of all the treatments and CK were alike.When the fruits were mature, the content of the chlorophyll of CK was higher than those of the treatments or had on significant difference from the exceptional treatments, and that of the anthocyanidin of CK was lower than those of all the treatments.So all the treatments were good for the pigmentation of fruits. Related Articles | Metrics

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Analysis of Inter-Species Relationship of Lycoris by Use of ITS Sequences WU Ling, LU Yi-jun, SHI Shu-de, FU Cheng-xin 2007, 36(01): 31-35.  Abstract ( )   PDF (349KB) ( )   The inter-species relationship of 13 species in the genus Lycoris was studied based on sequences of the internal transcribed spacer (ITS) of nuclear ribosomal DNA.Total DNAs of Lycoris were extracted from silica-dried leaves of each species.The ITS sequences were amplified by PCR with universal primer of ITS and PCR products were sequenced after purification.The length of ITS1 and ITS2 sequences were 259~260 bp and 230 bp respectively.There were distinct variant sites between the ITS sequences.Phylogenetic analysis showed that Lycoris could be classified into three clades:clade I (M+T) with L.chinesis, L.aurea, L.anhuiensis and L.longituba, clade II (ST) with L.radiata var.punila, L.sprengeri, L.rosea and L.haywardii, and clade III (ST+T+M) with L.straminea, L.albifora, L.caldwellii and two Hydrids.The result was basically consistent with that of chromosomekayotype study.The clade III was presumed from interspecific hybridization between two other clades. Related Articles | Metrics

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Effect of Drought Stress on the Characteristics of Transpiration of 4 Plants ZHENG Ben-nuan, YE Gong-fu, LU Chang-yi 2007, 36(01): 36-38,42.  Abstract ( )   PDF (202KB) ( )   Based on the condition controlling in the green house, the effect of drought stress on the characteristics of transpiration water consumption of 4 plants were tested.The results showed that 4 species examined had clearly daily variation in transpiration and stomatal resistance.The transpiration rate drop gradually and stomatal resistance increased under the condition of drought stress.When water potential dropped to some critical level, stomatal increased sharply and the transpiration rate decreased to lowest level as stomatal close.Neyraudia reynaudiana was of high drought tolerance with high water use efficiency under different water supply, while Miscanthus floridulus is of low, and the drought resistance ability of Paspalum notatum and Vetiveria zizanioides were ranked between the two species. Related Articles | Metrics

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Studies on Photosynthetic Characteristics of Panicum maximum cv.Reyan No.8 XIAO Sheng-hong, LIU Jin-xiang 2007, 36(01): 39-42.  Abstract ( )   PDF (199KB) ( )   The photosynthetic characteristics of Panicum maximum cv.Reyan No.8 were measured with the LI-6400 portable photosynthesis system on clear days in the first ten days of September 2006.The results showed that the photosynthesis of P. maximum cv.Reyan No.8 presented a single peak curve, no midday depression.The peak appeared at about 13:00 (Pn=26.9 μmol/m2·s), and changed positively with the variations of transpiration rate and stomatal conductance.The light saturation and compensation points of P. maximum cv.Reyan No.8 were about 1700 μmol/m2·s and 46 μmol/m2·s, respectively.The apparent quantum yield, CO2 saturation point, CO2 compensation point and carboxylation efficiency were about 0.0535, 600 μmol/mol, 3.49 μmol/mol and 0.1168, respectively.These results indicated that P. maximum cv.Reyan No.8 was a heliophile C4 type plant with shade-tolerance. Related Articles | Metrics

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Antibacterial and Antifungal Activities of the Polysaccharides Extracted from Nine Species of Pteridophytes Against the Plant Pathogenic and Animal Pathogenic Microorganisms CHEN Xiao-qing, XU Gan-ye 2007, 36(01): 43-45.  Abstract ( )   PDF (158KB) ( )   The crude polysaccharides were extracted from nine species of pteridophytes and their contents were determined by oxybenzene-sulfuric acid colorimentry.These crude extracts were tested for their efficiency against the plant pathogenic microorganisms and animal pathogenic bateria using the agar disc diffusion method.The results showed that there were great differences among the polysaccharides contents of nine pteridophytes and polysaccharide extracts had varying activities against different phytopathogenic microorganisms and animal pathogenic microorganisms. Related Articles | Metrics

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The Application of BIB-LCJ in the Aesthetic Estimation of the Palm Plants Landscape ZHENG Zhou-xiang, CHEN Xi-mu, WENG Shu-fei, YANG Xue-cheng 2007, 36(01): 46-48,62.  Abstract ( )   PDF (388KB) ( )   The palm plants have been very popular recently, but there are few studies for the public aesthetic estimation on the palm plants landscape.LCJ is one of the most popular methods of the psychology physics for aesthetic estimation in the world.After the BIB was introduced, BIB-LCJ could be used in many samples.In the article, BIB-LCJ was used in the public aesthetic estimation on the palm plants landscape.On the basis of the estimation, how to dispose the palm plants for the best landscape according to the public aesthetic standard was discussed. Related Articles | Metrics

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The Application of Southern Fruit Trees to Landscape LI Fang-ying, WU Shao-hua 2007, 36(01): 49-54.  Abstract ( )   PDF (244KB) ( )   The resource of southern fruit trees is abundant, it has been playing more and more important role on application of fruit tree in landscape.The characteristics of southern fruit trees on floristics and application in landscape, from aspects of applied species, confine and mode were studied in this paper. Related Articles | Metrics

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The Fascicular Plants and Its Distribution in Jiufushan Nature Reserve, Youxi County, Fujian Province ZHENG Shi-qun, PENG Dong-hui, SU Xiao-qing, WEI Kai-ju, ZHENG Sheng-zhou 2007, 36(01): 55-58.  Abstract ( )   PDF (316KB) ( )   There exists 1 104 species of fascicular plants belonging to 547 genera of 171 families in Jiufushan Nature Reserve, Fujian Province.The composition of the species, genera and families was analyzed, and the main plant groups and their distribution were also described. Related Articles | Metrics

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Wild Grease Plant Resources in Fujian Niumulin Nature Reserve and Their Exploitation XIE Da-xian 2007, 36(01): 59-62.  Abstract ( )   PDF (361KB) ( )   There exists 102 species belonging to 72 genus in 45 families of wild grease plants in Niumulin Nature Reserve according to the investigation.The main types of wild grease plants including energy plants, edible oil plants and industry oil plants in Niumulin Nature Reserve were described, and their development and utilization were discussed in this paper. Related Articles | Metrics

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Tissue Culture and Rapid Propagation of Spiraea japonica ‘Dart's Red’ YAO Jun, YANG Bo 2007, 36(01): 63-63,65.  Abstract ( )   PDF (220KB) ( )   Related Articles | Metrics

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Preliminary Study on Floating Cultivation of Okra Seedlings YANG Jian-ping, WANG Cai, CHEN Xue-mei 2007, 36(01): 64-65.  Abstract ( )   PDF (121KB) ( )   Related Articles | Metrics

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Tissue Culture and Rapid Propagation of Cardiocrinum giganteum ZHOU Yan-Ping, WANG Hui, JIA Gui-Xia 2007, 36(01): 66-67.  Abstract ( )   PDF (155KB) ( )   Related Articles | Metrics

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Effects of ZnCl2 on Senility of Cut Flower of Rosa chinensis CHEN Dan-sheng, DING You-xiong, TANG Wei-ping, HONG Hua, LIN Ting, CHEN Sheng-feng, LIN Ruo-qi 2007, 36(01): 68-69.  Abstract ( )   PDF (122KB) ( )   Related Articles | Metrics

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A Review of Research in Tissue Culture of Aloe LONG Wen-xing, YANG Xiao-bo, QI Mei-ying, LI Dong-hai, GUO Tao 2007, 36(01): 70-74.  Abstract ( )   PDF (277KB) ( )   A review was made of the achievements in recent years in tissue culture of Aloe spp.in selection of explants and medium, uses of plant growth regulators and addictives, control of growth conditions, browning and vetrification.Some suggestions about tissue culture of Aloe spp.were put forward. Related Articles | Metrics

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The Biological Characteristics of Zenia insignis and Its Exploitation and Utilization HE Xiao-yong, YUAN De-yi, LIU Xin-hong, ZHAO Si-dong, ZHANG Lin, WEI Lai 2007, 36(01): 75-78,84.  Abstract ( )   PDF (309KB) ( )   As a rare tree species in the south of China, Zenia insignis grows rapidly, regenerates easily from sprouts with wide adaptability, and naturally distributes in Guangxi, Guangdong, Hunan, Guizhou, Yunnan and so forth.Based on field survey, introduction experiments and reference data, the biological characteristics of Zenia insignis were analyzed, the study progresses including raising seedlings, silviculture, and comprehensive utilization were reviewed, and some suggestions for further study were proposed. Related Articles | Metrics

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Advances in Study on Chemical Constituents of Celastrus orbiculatus CHEN Yuan-wang, DING Li-ping, OUYANG Ming-an 2007, 36(01): 79-84.  Abstract ( )   PDF (426KB) ( )   At least 60 compounds have been isolated from Celastrus orbiculatus in the past, most of which are sesquiterpenes, triterpenes and flavonoids.This paper reviews the advancement in study of chemical constituents of C. orbiculatus, presenting the structure and the 13C-NMR data of these constituents. Related Articles | Metrics

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Recent Research Advances on Ethylene Receptors in Tobacco ZHANG Xue-qin, PENG Ke-qin, KU Wen-zhen, SU Yi 2007, 36(01): 85-88.  Abstract ( )   PDF (253KB) ( )   Ethylene is a gaseous hormone that plays multiple roles in plant growth, development and stress.In the article, the research advancement on ethylene receptors in tobacco was summarized.Ethylene receptor NtETR1, NtERS1, NTHK1 and NTHK2 gene had been cloned from tobacco in recent years.Characterization and molecular cloning cDNA for ethylene receptors were investigated in tobacco, especially NTHK1 and NTHK2.But the studies on the target which ethylene receptors act in the cell were absent. Related Articles | Metrics